Everyday OC on a 920 DO?

[Elfear]

I'm running my D0 at the specs in my sig. Temps under OCCT are right around 60C with my budget cooler. If you're wanting to stay at stock volts, I don't think 3.8GHz is unreasonable given you get a decent D0.

If you want to save a little money on the board, I'd suggest a Gigabyte UD3R. Had one for about 6 months (ended up replacing it because of a bad bios flash) and it was a great overclocker and very stable.

 

[Shmee]

mine runs at 4.2 GHz, but needs a bit of extra vcore. This is pretty much its max. Right now it is set at 1.4 V in bios. motherboard in sig. Linx gets around mid 70's. Also using a TRUE black, but I am not sure of the revision.

I also have a Q6600 at 3.5 on an nvidia board (evga 780i ftw) also at about 1.4 V.

 

[GLeeM]

I was thinking of aiming for an OC of 3333. Any thoughts?

That should be easily do-able.

Remember when reading about others' OCs that many of the best ones are with HT off, but they don't say it.

Word of warning: I have the P6T Deluxe V2 - you have to lock the vcore to what you want by setting it in BIOS or it will "auto" increase as you increase BCLK!

 

[Ben90]

Well I'll definitely keep a new cooler in mind. However I'm trying to keep the cost down for this upgrade, so I may suggest the TRUE or Megahelms as a fathers day gift.

Honestly I wouldn't worry about it, I'm running 4ghz (HT off) on the stock cooler right now. Sure I can hit TJmax if I run something like Intel Burn, but the heaviest load it sees under real world usage is 4x F@H. Temps are ~20 DTJmax with a 22C* ambient.

 

[2March]

stock voltages.

I'm still undervolting at 1.256V

At stock voltage I get almost 1.5V at 3.8GHz.

It begs the question: What's so stock about stock voltage?

To the OP 3.6GHz should really be fine for a D0 (and a C0 for that matter)

 

[Rubycon]

I'm still undervolting at 1.256V

At stock voltage I get almost 1.5V at 3.8GHz.

It begs the question: What's so stock about stock voltage?

To the OP 3.6GHz should really be fine for a D0 (and a C0 for that matter)

That's not stock voltage that's AUTO voltage. If one overclocks they MUST NOT use auto voltage! As you increase BCLK the AUTO setting will AUTOmatically raise VCORE and the setting is quite aggressive often much more than needed.

 

[2March]

That's not stock voltage that's AUTO voltage. If one overclocks they MUST NOT use auto voltage! As you increase BCLK the AUTO setting will AUTOmatically raise VCORE and the setting is quite aggressive often much more than needed.

I hear you,

The problem is that I'm using a P6T and the only Vcore settings are auto or manual. The Intel DB claims stock Vcore for the 920 is between 1.0V and 1.35V (IIRC) so what is stock voltage?

I don't know how this works on other X58 MB's but I'd be interrested in the exact number...

 

[Gillbot]

I hear you,

The problem is that I'm using a P6T and the only Vcore settings are auto or manual. The Intel DB claims stock Vcore for the 920 is between 1.0V and 1.35V (IIRC) so what is stock voltage?

I don't know how this works on other X58 MB's but I'd be interrested in the exact number...

then look at your VID and set it manually. I never NEVER use AUTO for any voltage.

 

[Rubycon]

1.2000 is a real nice round number that's taken me to 4.2GHz on better chips.

 

[Markfw]

then look at your VID and set it manually. I never NEVER use AUTO for any voltage.

The vid used to show up on coretemp, but not anymore. Where can I find this ? bios@stock defaulted to 1.2875 or something high.

 

[Gillbot]

I think realtemp shows it somewhere but I don't recall where. This machine uses coretemp so I can't look. I'll see what I can dig up.

 

[Gillbot]

it should show it on the settings page:
http://dailyfreeware.net/wp-content/uploads/screen1.jpg

the max is for full speed, the min is for when speedstep is on

 

[2March]

then look at your VID and set it manually. I never NEVER use AUTO for any voltage.

Obviously neither do I. But I would have liked to use it since I also still use EIST and turbo while OC'ed to 3.6 -> 3.8 /w turbo. I like the idea that it runs only a 12 divider and 2160 MHz when there is no load on the system. Only then the Vcore is way too high because it is fixed. No biggy though. I just did it the old fashioned way. Tested the system at different Vcores untill I found the lowest possible stable Vcore.

1.2000 is a real nice round number that's taken me to 4.2GHz on better chips.

Darn, you lucky D0 owners Need 1.256 for 3.8GHz on my C0.

But still. Everyone is talking about how high these chips go at stock Vcore. Meanwhile everyone is using a different value for stock Vcore

To Markfw900: these are some autovalues from my i7 920 on ASUS P6T-DL:

2.66GHz - Vcore=1.048V (1.28V full load)
3.33GHz - Vcore=1.232V (1.248 full load)
3.6GHz - Vcore=1.408V (1.432 full load) with loadline callibration disabled it was 1.408V/1.35V...

 

[Gillbot]

not all D0's are created equal, IIRC my brothers takes 1.35 or so to hit 3.7ghz.

 

[Markfw]

it should show it on the settings page:
http://dailyfreeware.net/wp-content/uploads/screen1.jpg

the max is for full speed, the min is for when speedstep is on

I downloaded the most recent version. Here is what I see (no VID)

 

[Rubycon]

not all D0's are created equal, IIRC my brothers takes 1.35 or so to hit 3.7ghz.

I know - I would be lying if I said everyone I had was a gem. Some were getting stubborn at 3.6. Like I've said before it's a lottery. Not every ticket will be a winner. Most go in the trash can!

 

[Makaveli]

You know what this is a very good question what is the stock vcore is it 1.2 or 1.25?

 

[Rubycon]

You know what this is a very good question what is the stock vcore is it 1.2 or 1.25?

Depends on your VID.

What's important is providing enough voltage to keep the CPU error free at the speed you want to run. At highest speeds temperature will be the limiting factor unless you're using high capacity cooling. (liquid, chillers, etc.)

 

[Gillbot]

I downloaded the most recent version. Here is what I see (no VID)

http://pics.bbzzdd.com/users/markfw/realtemp.JPG

I fired mine up and it displays the same way, so I honestly am not sure how to check the VID now aside from coretemp. Will coretemp work?

 

[alyarb]

i think the VID field is greyed out for i5/i7 running coretemp.

 

[Markfw]

i think the VID field is greyed out for i5/i7 running coretemp.

exactly my problem.

 

[spdfreak]

"I'd like to keep it at stock voltage and keep speed step / turbo boost enabled."

No one really answered this question for him. I'd also be interested in people's experience with this scenario. I honestly don't do anything on a consistent basis that needs 4GHz. Maybe 5% of what I do is photoshop or an occasional video trans-code.

 

[Gillbot]

On my W3580, I set the voltage manually in the bios to 1.25v, upped the multi for 3.6GHz and left speedstep on. It still throttles the voltage down with speedstep on my board.

 

[Gillbot]

From the RealTemp website:

Core VID
This is the Minimum and Maximum voltage that your processor will request from your motherboard when the Voltage is set to AUTO or Default in the bios. Depending on your motherboard and how it is set up this voltage request may be ignored. Core VID is a suggested voltage and may not be the same as the actual core voltage that your processor receives. Use a program like CPU-Z to report actual core voltage. Core VID is no longer supported with the new Core i7 processors.

 

[Gillbot]

Looks like the most common way is to set everything to "stock" or "auto" and see what CPUz reports for voltage.

The only other info i've found is the intel page which isn't any help:
http://processorfinder.intel.com/details.aspx?sSpec=SLBEJ
VID Voltage Range: 0.80V-1.375V

Looks like stock on my W3580 should be 1.225v so i'm actually above that a shade with 1.25v. UH OH!