Why do you overclock?

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Makaveli

Diamond Member
Feb 8, 2002
4,762
1,162
136
I'm coming from an overclocking background where perf/W is the biggest factor ; smartphones.

Currently I'm using a Galaxy S III.At stock,it ran at 1.4GHz with 1.275/1.3mV,depending on the binning of the chip.Mine was 1.3mV,and is now running at 1.6GHz with 1.225mV.The result?A nice bump in performance with actually LESS wattage drawn than at stock.I can easily do 1.7GHz but it exceeds stock voltage and destroys battery life.

An even better example was the Galaxy S 2 with its initial overheating problems.It ran at 1.2GHz with a rather high voltage (I think 1.3mV again).And believe me when I say that at times it would almost burn my finger when I touched the area around the CPU.After spending weeks tinkering with it,I had finely tuned voltages for each frequency and modified frequency scaling.The result was a phone running at 1.5/1.6GHz (I always tried to stay at the more sane 1.5GHz but again went back to 1.6GHz after a few days) with no overheating problems.

My point?If you really take the time to find the sweet spot for your particular CPU,you can make it work wonders.Having the optimal voltage for each frequency will help clock higher and consume less energy,which means lower temperatures too.Don't stick to the "+1GHz with +0.5V" methodology.Do it right or don't do it at all.

How can you compare overclocking on a cell phone to doing the same thing on a full desktop computer??

Your coming from a cell phone overclocking background while most of the people on site have been overclocking desktop processes since the Celeron 300A.
 

tolis626

Senior member
Aug 25, 2013
399
0
76
How can you compare overclocking on a cell phone to doing the same thing on a full desktop computer??

Your coming from a cell phone overclocking background while most of the people on site have been overclocking desktop processes since the Celeron 300A.

Who cares?People could have been overclocking freezers for all I care.The basic principles I was referring to apply to both PCs and phones.Power usage goes up linearly with clockspeed and exponentially with the voltage.Increase clockspeed,decrease the voltage and do the math.Also,luck of the draw is always a factor and spending enough time to know the tolerances of a particular CPU always yields the best results.These could apply to GPUs as well.I can't see what your argument is.

I'm saying that having overclocked quite a few PCs,just not to extreme levels and without spending too much time.My most recent and extensive experiences,however,come from the mobile space.And I can assure you,things are quite similar.Just a lot simpler.
 

Makaveli

Diamond Member
Feb 8, 2002
4,762
1,162
136
Who cares?People could have been overclocking freezers for all I care.The basic principles I was referring to apply to both PCs and phones.Power usage goes up linearly with clockspeed and exponentially with the voltage.Increase clockspeed,decrease the voltage and do the math.Also,luck of the draw is always a factor and spending enough time to know the tolerances of a particular CPU always yields the best results.These could apply to GPUs as well.I can't see what your argument is.

I'm saying that having overclocked quite a few PCs,just not to extreme levels and without spending too much time.My most recent and extensive experiences,however,come from the mobile space.And I can assure you,things are quite similar.Just a lot simpler.

While i understand your point it does matter.

Overclocking a phone is not the same as a desktop processor and last I checked this is a cpu and overclocking forum not the mobile one.
 

tolis626

Senior member
Aug 25, 2013
399
0
76
While i understand your point it does matter.

Overclocking a phone is not the same as a desktop processor and last I checked this is a cpu and overclocking forum not the mobile one.

If it was the same I would have stated so.They're just similar.I just can't find a better example of the perf/W one can achieve.
 

zir_blazer

Golden Member
Jun 6, 2013
1,184
459
136
Since you 2 continue to ignore my comments, and change the rules, I am done with this thread...................No sense in arguing with someone with a closed mind.
For me, you're the guy with the closed mind. You're so bent on thinking that overclocking is "free" that you forget that power consumption represents money in electricity, heat that gets transferred to the ambient, Fan noise, extra stress on some components, and some of those things are measurable and important. At stock Voltage it may be minor, but still there is, and as I stated in my previous Post, you're skipping the part that the reason why you can overclock at stock Voltage is because you have more of it that you really need, as you can also undervolt at stock Frequency if you prefer to save on power consumption instead of getting more performance.
You're also forgetting that in order to overclock you have to spend more, because during the last three generations Intel charges you for doing so by forcing you to get specific Processors and Chipsets at a premium for that feature. Plus the aftermarket heatsink, as for Haswell overclocking the retail one is totally undersized. In comparison, I recall Core 2 Duo overclocked very well with stock heatsinks, so you didn't even had to spend on one and still get decent overclock margins. It is not free, neither to get the parts, nor the actual results.


In *YOUR* use case, you say that overclocking is justified because you have a big timed bonus goal. Fine. However, for MY use case, when I upgraded from my 2006 Athlon 64 3000+ Venice to a 2010 Athlon II X4 620, I had soo much CPU performance that during an entire year that I spend playing with emulators and old games I was happy running 1 GHz @ 0.8V with the Fan at minimum, making it a nearly silent machine even on Full Load. And as the machine was running 24/7 anyways, I didn't really care about system power consumption (Which should have been rather low) as a whole but just the Processor.
With an unbloated WXP SP3 installation (14 Processes at boot), I didn't notice any meaningful difference in daily usage between 1 GHz and 2.6 GHz. Actually, on some newer games even 2 GHz was overkill as I was bottlenecked by the integrated Radeon 4200 (AMD 785G), so it was pointless to run it at its fullest, yet most of those old games love to make a Core get to Full Load even when its noticeable than that level of performance is unneeded.

Its the user the one that knows what he values the most. How much performance you actually need? Do you need 4.2 GHz? Do you need 3.4? Can you live with 2 or 1 as I did (On a K10, a Haswell would do better)? Do you want to have an airship turbine as a Fan to get to 5 GHz, or would sacrifice performance in exchange of silence? If benchmarks didn't tell you a performance number, would you notice it?
The point is that from the Core 2 Duo onwards, there seems to be consensus among people and reviews that CPU performance for Joe Average is getting good enough to the point where more isn't easily noticeable (Didn't Anand himself say so if I recall correctly?), and even we had a performance regression to 2002-2003 levels during the Netbook craze with those worthless Atoms, yet people somehow managed to adapt to those slugs. And today, I see people quite often building low end Celerons quite happy with the everyday performance that they offer. Yet at the other side of the fence there are guys that can never get enough.

So, I postulate three scenarios where you may want more performance than what suffices for Joe Average in his bloated Windows installation:

1 - Real time, like games, where performance is quite variable with ups and lows, and the target is to be over 30 or 60 FPS under a worst case CPU bound scenario
2 - Applications whose workload is continuous and infinite, like your folding thing (I could also say cryptocurrency mining, for that matter). This is a "all what you can eat"
3 - Applications whose workload is continuous but has start and finish, like a render, unzipping a file, etc. You may have a deadline to act as time limit, which I could say, my sleeping hours, and that decides how fast the CPU should have to work to make sure it finish by then. Indeed, if I need to wait for it to finish before I can do something else, I would want it to be as fast as possible

For every other scenario, I take undervolting @ stock to minimize noise, power consumption, and component stress, instead of overclocking. Your mileage may vary, this is mine. But this is also what I see that is the best option for any Joe Average that wants to tweak either for fun or efficiency, as it is overally less risky, and assuming that you feel you have enough performance, the best way, too.


BTW, I also noticed that you edited a previous Post explaining what the PPD bonus is, which wasn't there when I saw it. Also that you edited some of my Posts when I quoted you and your statement that I must return under a rock I crawled from or something like that. I'm happy you noticed how offensive your comment was, I'l take that as an apology.
 

UaVaj

Golden Member
Nov 16, 2012
1,546
0
76
BTW, I also noticed that you edited a previous Post explaining what the PPD bonus is, which wasn't there when I saw it. Also that you edited some of my Posts when I quoted you and your statement that I must return under a rock I crawled from or something like that. I'm happy you noticed how offensive your comment was, I'l take that as an apology.

him being a super moderator. he should had been held to a higher standard.

he should been ban for a day or two. that "crawl back to under your rock" comment was so uncalled for and quite childish.

sadly he didn't even get an infraction.

When it comes to day-to-day posting, moderators are held to the same standard as anyone else. No more and no less. This is so that they're free to participate in the community without being "on duty" at all times.

In the meantime moderator callouts are not something we tolerate. If you have a problem with the posting activities of a poster, report that post. If you have a problem with the moderation, bring that up in Moderator Discussions. Posting in the forums like that is not an acceptable outlet for either.

-ViRGE
 
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Makaveli

Diamond Member
Feb 8, 2002
4,762
1,162
136
When all else fails, argue semantics! :whiste:

no one is arguing its a discussion and people are allowed to agree and disagree.

This topic is an interesting one and you will get opinions from all sides.

i've been overclocking cpu's since the 90's and have watched it change and grow. And now its definitely not as hard as it use to be which has sadly taken some of the fun out of it.

I've enjoyed seeing all the post and looking at everyone experiences.
 
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Markfw

Moderator Emeritus, Elite Member
May 16, 2002
25,761
14,785
136
For me, you're the guy with the closed mind. You're so bent on thinking that overclocking is "free" that you forget that power consumption represents money in electricity, heat that gets transferred to the ambient, Fan noise, extra stress on some components, and some of those things are measurable and important. At stock Voltage it may be minor, but still there is, and as I stated in my previous Post, you're skipping the part that the reason why you can overclock at stock Voltage is because you have more of it that you really need, as you can also undervolt at stock Frequency if you prefer to save on power consumption instead of getting more performance.
You're also forgetting that in order to overclock you have to spend more, because during the last three generations Intel charges you for doing so by forcing you to get specific Processors and Chipsets at a premium for that feature. Plus the aftermarket heatsink, as for Haswell overclocking the retail one is totally undersized. In comparison, I recall Core 2 Duo overclocked very well with stock heatsinks, so you didn't even had to spend on one and still get decent overclock margins. It is not free, neither to get the parts, nor the actual results.


In *YOUR* use case, you say that overclocking is justified because you have a big timed bonus goal. Fine. However, for MY use case, when I upgraded from my 2006 Athlon 64 3000+ Venice to a 2010 Athlon II X4 620, I had soo much CPU performance that during an entire year that I spend playing with emulators and old games I was happy running 1 GHz @ 0.8V with the Fan at minimum, making it a nearly silent machine even on Full Load. And as the machine was running 24/7 anyways, I didn't really care about system power consumption (Which should have been rather low) as a whole but just the Processor.
With an unbloated WXP SP3 installation (14 Processes at boot), I didn't notice any meaningful difference in daily usage between 1 GHz and 2.6 GHz. Actually, on some newer games even 2 GHz was overkill as I was bottlenecked by the integrated Radeon 4200 (AMD 785G), so it was pointless to run it at its fullest, yet most of those old games love to make a Core get to Full Load even when its noticeable than that level of performance is unneeded.

Its the user the one that knows what he values the most. How much performance you actually need? Do you need 4.2 GHz? Do you need 3.4? Can you live with 2 or 1 as I did (On a K10, a Haswell would do better)? Do you want to have an airship turbine as a Fan to get to 5 GHz, or would sacrifice performance in exchange of silence? If benchmarks didn't tell you a performance number, would you notice it?
The point is that from the Core 2 Duo onwards, there seems to be consensus among people and reviews that CPU performance for Joe Average is getting good enough to the point where more isn't easily noticeable (Didn't Anand himself say so if I recall correctly?), and even we had a performance regression to 2002-2003 levels during the Netbook craze with those worthless Atoms, yet people somehow managed to adapt to those slugs. And today, I see people quite often building low end Celerons quite happy with the everyday performance that they offer. Yet at the other side of the fence there are guys that can never get enough.

So, I postulate three scenarios where you may want more performance than what suffices for Joe Average in his bloated Windows installation:

1 - Real time, like games, where performance is quite variable with ups and lows, and the target is to be over 30 or 60 FPS under a worst case CPU bound scenario
2 - Applications whose workload is continuous and infinite, like your folding thing (I could also say cryptocurrency mining, for that matter). This is a "all what you can eat"
3 - Applications whose workload is continuous but has start and finish, like a render, unzipping a file, etc. You may have a deadline to act as time limit, which I could say, my sleeping hours, and that decides how fast the CPU should have to work to make sure it finish by then. Indeed, if I need to wait for it to finish before I can do something else, I would want it to be as fast as possible

For every other scenario, I take undervolting @ stock to minimize noise, power consumption, and component stress, instead of overclocking. Your mileage may vary, this is mine. But this is also what I see that is the best option for any Joe Average that wants to tweak either for fun or efficiency, as it is overally less risky, and assuming that you feel you have enough performance, the best way, too.


BTW, I also noticed that you edited a previous Post explaining what the PPD bonus is, which wasn't there when I saw it. Also that you edited some of my Posts when I quoted you and your statement that I must return under a rock I crawled from or something like that. I'm happy you noticed how offensive your comment was, I'l take that as an apology.

crawling under a rock was not directed at you, but we will leave the person un named
I still maintain its free, so we agree to disagree. I only reply to correct your thought that I was insulting you, and that's incorrect.

Still done with this thread.
 

TerryMathews

Lifer
Oct 9, 1999
11,473
2
0
I didn't really care about system power consumption (Which should have been rather low) as a whole but just the Processor.

I dont even know how to respond to this, that's like saying you dont care how much MPG the car gets, only how much the leather seats take away from the MPG.

In one breath you care about power efficiency, the next you say the PC was on 24x7 which is horribly inefficient.

And you call mark close-minded? Lol
 

HeXen

Diamond Member
Dec 13, 2009
7,832
38
91
I used to do it soley for more performance in gaming, often just to get that few extra fps was really worth while and likely what got most into OC'ing anyway. With today's hardware though I don't need it anymore and haven't since maybe the old AMD64 days. Too bad you can't OC consoles, the PS3 could use some juice in certain games. I do have my PSP over clocked for emulators. I need to OC my Arcade I built but it's ITX and don't think it allows in bios anyway.

As far as power efficiency goes, well if the hardware is plugged in all the time and you can afford the system to OC then you can afford the electric bill.
 
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BonzaiDuck

Lifer
Jun 30, 2004
15,785
1,500
126
The author of the article I read last week on the IHS-with-Paste dilemma for IB and Haswell seems to think over-clocking will "die a slow death."

His point: as the die keeps shrinking even with drops in TDP, we'll have to resort to more than just water to cool the chips enough to make OC'ing worthwhile. He noted that it takes 400W over some period of time to create enough LN2 for a brief benchmarking experiment.

I'm not so sure. But the other aspect of future speculation includes CPUs with more cores -- yet lower prices. I can't say how that will shake out. Time will tell.

I could say I spent way too much on computers over the last half of my life, but then . . . I made money with it. The OC'ing is a compulsion -- almost . . . really. I just can't stand building a machine that any mainstream user-dork can buy from an OEM. If I'm going to build it, I'm going to find out how to overclock it.

But, yeah -- the writing is on the wall. All the mainstreamers are running around with "beam-me-up-Scotty" devices. My I-net provider is promoting an app to use a tablet to watch TV while you sit in that warm, quiet place to make a massive-gassive-lumpy-dumpling. Better than the newspaper: You can watch "The View."

I guess we'll all have to wait and see. Meanwhile, I've added about three or four more BIOS-setting "profiles" to run my SB at different speeds, now that I can bang out a profile with a few LinX runs and what I already know about the voltages.
 

zir_blazer

Golden Member
Jun 6, 2013
1,184
459
136
I dont even know how to respond to this, that's like saying you dont care how much MPG the car gets, only how much the leather seats take away from the MPG.

In one breath you care about power efficiency, the next you say the PC was on 24x7 which is horribly inefficient.
Yep, my computer is always on 24/7 because I always leave all the instant message applications so if I'm awake I can hear if someone is talking to me, BitTorrent, my previous work/gaming session open at the exact same spot I left it in case I felt sleepy, etc. So I take system power consumption as granted, the only variable is the Processor, that as I explained earlier, as an standalone device is always more efficient at a lower Frequency. And even then, the computer at Idle should be competing with a 40 or 60W light bulb in power consumption, is relatively little.

[redacted]

Personal attacks will not be tolerated
-ViRGE
 
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TerryMathews

Lifer
Oct 9, 1999
11,473
2
0
the only variable is the Processor, that as I explained earlier, as an standalone device is always more efficient at a lower Frequency. And even then, the computer at Idle should be competing with a 40 or 60W light bulb in power consumption, is relatively little.

It also happens to be either the #1 or #2 highest power draw item in your PC.

"Dude check out the stubby antenna I put on my Hummer! Its good for an extra 0.3MPG!"

[snip]

Last I checked, a $75 chip on a $100 board was the very definition of budget. Of course if you read the damned thread you'd know that.

I also liked your subtle goal post move (was, not is). So if something is high end it stays high end for life? Of course not. That would destroy Nvidia's sales model.

You two: get a room.
-ViRGE
 
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zir_blazer

Golden Member
Jun 6, 2013
1,184
459
136
Point being, you're way on the wrong side of this topic. Youre first clue should have been when no one agreed with you.
Re-check Slomo4shO Posts, he is arguing the very same thing I do about undervolting @ stock.


Last I checked, a $75 chip on a $100 board was the very definition of budget. Of course if you read the damned thread you'd know that.
1 - Not everyone has access to cheap used parts markets. I live in a place where the used market is around 70-80% of the price of the part when it was new. Purchasing something used here is usually a complete ripoff. And you don't see Server parts of recent generations often.
2 - Yes, eBay exist, but I need to pay 30-40 U$D per Processor shipping or 70-100 U$D for a Motherboard shipping cost, custom tax (50%) and expect that the seller wants to do international shipping. This put it in the range of a brand new parts adquired locally, and a lower amount of possible suppliers.
 

Markfw

Moderator Emeritus, Elite Member
May 16, 2002
25,761
14,785
136
Re-check Slomo4shO Posts, he is arguing the very same thing I do about undervolting @ stock.



1 - Not everyone has access to cheap used parts markets. I live in a place where the used market is around 70-80% of the price of the part when it was new. Purchasing something used here is usually a complete ripoff. And you don't see Server parts of recent generations often.
2 - Yes, eBay exist, but I need to pay 30-40 U$D per Processor shipping or 70-100 U$D for a Motherboard shipping cost, custom tax (50%) and expect that the seller wants to do international shipping. This put it in the range of a brand new parts adquired locally, and a lower amount of possible suppliers.

You realize that the undervolting@stock can be interpreted as free money, instead of a free overclock ? Using less electricity and producing less heat than Intel (Or AMD) indended@stock.

So, is it free money or free overclock you are arguing for ? make up your mind.
 

zir_blazer

Golden Member
Jun 6, 2013
1,184
459
136
You realize that the undervolting@stock can be interpreted as free money, instead of a free overclock ? Using less electricity and producing less heat than Intel (Or AMD) indended@stock.

So, is it free money or free overclock you are arguing for ? make up your mind.
Quote from this Post:

You can take two paths: Highest possible overclock at stock Voltage (More performance for slighty higher power consumption, as the default Voltage is already higher than needed), or lowest possible Voltage at stock Frequency. Comparing overclocked vs stock is unfair, I said that earlier.

By that Thread results, things are like this:

Stock: 3.4 GHz @ 1.164V = 84W
Lowest Voltage: 3.4 GHz @ 1.038V = 65W
Highest Frequency: 4.2 GHz @ 1.163V = 99W

It is NOT FREE. Is simply that you're looking at it unidimensionally. The actual jump is 34W, a whole 50%. And considering that its pretty much the sweet spot in power efficiency if you take into account system power consumption, I would prefer to run at 3.4 GHz @ 1.038V and put the Fan at minimum to reduce noise.
You never mentioned undervolting @ stock as viable until now. I say that for anyone that knows how to do overclocking @ stock, they can't compare it to stock because I'm assuming they know how to undervolt, too.

What is the choice for you depends on all these factors I also explained earlier. Anything after that makes this discussion going pretty much on an infinite loop.
 

OCGuy

Lifer
Jul 12, 2000
27,227
36
91
Wouldn't it be safe to assume that debating over pennies in electricity in a CPU/Overclocking forum is silly? This is an enthusiast board, not Greenpeace.

Besides, you can't ignore the fact you can still OC and leave Speedstep and other power-saving features enabled, so that you are not clocked higher when not using your machine.....

There is nothing wrong with wanting an efficient machine, but you shouldn't be buying i7 or 4+ GHZ AMD chips if that is the case.
 

TerryMathews

Lifer
Oct 9, 1999
11,473
2
0
Wouldn't it be safe to assume that debating over pennies in electricity in a CPU/Overclocking forum is silly? This is an enthusiast board, not Greenpeace.

Besides, you can't ignore the fact you can still OC and leave Speedstep and other power-saving features enabled, so that you are not clocked higher when not using your machine.....

There is nothing wrong with wanting an efficient machine, but you shouldn't be buying i7 or 4+ GHZ AMD chips if that is the case.

Exactly!
 

BonzaiDuck

Lifer
Jun 30, 2004
15,785
1,500
126
Wouldn't it be safe to assume that debating over pennies in electricity in a CPU/Overclocking forum is silly? This is an enthusiast board, not Greenpeace.

Besides, you can't ignore the fact you can still OC and leave Speedstep and other power-saving features enabled, so that you are not clocked higher when not using your machine.....

There is nothing wrong with wanting an efficient machine, but you shouldn't be buying i7 or 4+ GHZ AMD chips if that is the case.

Abso-tive-ly, Posi-lute-ly right about that!

Perhaps one could argue that the pennies-per-year collectively add up to . . . something. But we'd studiously done our best around this house to cut our electric bill (self-interested savings) and reduce energy consumption (the public good). We got rid of all our bulky tube-TVs. Under protest from my old-school elderly parent, we stopped foraging for three-way 100W light-bulbs and started buying those available in low-energy flavors. We set up all our computers to sleep when not in use.

The bigger savings and reduced energy consumption come from choices over refrigeration appliances. The computers are a drop in the bucket. And if my 4.7Ghz overclocker uses "more energy" here and there, EIST is enabled.

On your first point, though, I have been away from the forums for several months. I thought I'd noticed a different tone and tenor in the posts lately. Beyond the de-lidding obsession, I don't see much in the rave exchange over OC accomplishments with Haswell. I'd also observed an article elsewhere that included the phrase "slow death of over-clocking" in the title.

People who don't want to wring extra performance out of their computers should just buy OEM, or otherwise build one by choosing a good motherboard under $150 and a mid to low-range locked processor. They will save some money and have a nice computer.

We don't have to justify our preoccupation here! It may be like Mark Twain's steamboats: doomed to obsolescence as the cooling problem costs more and more wattage. But we're not hauling freight down the Mississippi here. We're just . . . freakin' . . . . over-clockin'!!
 

2is

Diamond Member
Apr 8, 2012
4,281
131
106
The biggest cost when overclocking is going to be the additional money you spend on cooling. As stated, the extra costs of electricity, especially if you keep all the power savings features enabled is pretty small unless you're PC is under load 24/7, in which case it could be a reasonable chunk of change by the end of the computers life. Particularly with AMD processors as they consume a reasonable amount of power when OC'd

For me personally, overclocking with stock volts makes me uncomfortable. Whenever I OC, I find the maximum overclock I can get while keeping the temps reasonable, then I drop that OC by 100MHz. At the same time, I find the voltage that passes all the tests I throw at it, and raise it by a couple notches.

I like to have that stability cushion which wouldn't exist by OCing under default volts, and if it did exist, it means a pretty mild OC that probably isn't even worth the trouble.
 

BonzaiDuck

Lifer
Jun 30, 2004
15,785
1,500
126
The biggest cost when overclocking is going to be the additional money you spend on cooling. As stated, the extra costs of electricity, especially if you keep all the power savings features enabled is pretty small unless you're PC is under load 24/7, in which case it could be a reasonable chunk of change by the end of the computers life. Particularly with AMD processors as they consume a reasonable amount of power when OC'd

For me personally, overclocking with stock volts makes me uncomfortable. Whenever I OC, I find the maximum overclock I can get while keeping the temps reasonable, then I drop that OC by 100MHz. At the same time, I find the voltage that passes all the tests I throw at it, and raise it by a couple notches.

I like to have that stability cushion which wouldn't exist by OCing under default volts, and if it did exist, it means a pretty mild OC that probably isn't even worth the trouble.

I'm still twiddling with low-end over-clocks -- turbo-overclocking bumped up at most 400 Mhz. They seem rock stable with the auto defaults set in BIOS, but I'm running short tests with LinX to see how I can tweak those settings to improve GFLOPS.

At the high-end, I was very mindful of voltages, but I got to 4.7 Ghz only adding about 8mV beyond a point where LinX failed between 25 and 30 iterations. I was also able to reduce high-load temperatures by 4C just by replacing two fans with one better.

Somehow, I feel more comfortable with the 4.7Ghz result, than the settings for 4.2.
 
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