LOL look at this noob's overclock Q6600

[LOUISSSSS]

currently @ 3.6ghz (9 x 400)
Bios Vcore: 1.325
cpu-z reading of vcore: 1.264
speedfan reading of vcore1: 1.26; vcore2: 1.86 (WHY ARE THERE 2 VCORE READINGS?)

current load:
coretemp avg temps of 4 cores: 58
speedfan temps: 60

on a not so important note:
cpu-z reading of processor: Intel Kentsfield
core temp 0.9.0.91 reading of processor: Intel Xeon Clovertown
(WHY ARE THERE 2 DIFF CODE NAMES?)

 

[Acanthus]

Are you prime stable?

I could boot all the way up to 450fsb, but i was never stable over 370.

And mark, i hit the same FSB wall on 5 CPUs with GA-P35-DS3R.

The same chips hit 400+ on a 965P-DS3 rev 3.3.

 

[Blain]

Originally posted by: LOUISSSSS

currently 15 mins prime95 BLEND stable (at least i dont think so, no popups. have round off checking enabled)

Congrats on your 15 minutes of stability! :thumbsup::laugh:

 

[PlasmaBomb]

Originally posted by: LOUISSSSS
currently @ 3.6ghz (9 x 400)
Bios Vcore: 1.325
cpu-z reading of vcore: 1.264
speedfan reading of vcore1: 1.26; vcore2: 1.86 (WHY ARE THERE 2 VCORE READINGS?)

current load:
coretemp avg temps of 4 cores: 58
speedfan temps: 60

on a not so important note:
cpu-z reading of processor: Intel Kentsfield
core temp 0.9.0.91 reading of processor: Intel Xeon Clovertown
(WHY ARE THERE 2 DIFF CODE NAMES?)

There is a difference between your bios and cpu-z because there can be a drop between the voltage set by the bios and what the motherboard supplies. There is also a droop in voltage when a loaded quad core is in the system as it pulls that much juice.

I would say it looks like a 0.015-0.025 drop and about 0.04-0.05 droop. Thats pretty normal (and others are reporting a total drop of 0.07V so its slightly better than average). If it concerns you, there are mods you can look into.

Your load temps look OK... how long is it stable at 400FSB?

The CPU-z and Coretemp readings of processor don't really matter the Clovertown is pretty much just a Kentsfield in S771 form rather than LGA775.

 

[Arcanedeath]

Update your version of core temp to 0.95.4 and it should display your processer correctly. Also Thats an excellent overclock, but I would suggest letting Prime 95 run for at least 24hrs to guarentee stability and you may want to try a 3d app like 3d mark also to ensure its stable.

 

[LOUISSSSS]

it went up to about an hour of stability and i needed to use my PC to run some more important programs so i stopped it after an hour of no errors @ 400fsb.

but i've dropped it back to a more relaxed 1.27vcore 380fsb for normal usage. realized that the 10C increase in heat isnt' worth the 200mhz...

 

[imported_LoKe]

Meh, one hour isn't enough. 4-8 are required for absolute certainty. My seemingly stable 3.6 failed Orthos at the 2 hour mark.

 

[Blain]

Originally posted by: LoKe
Meh, one hour isn't enough. 4-8 are required for absolute certainty.

Try 24 for "absolute certainty".

 

[Markfw]

actually, I have had to go a week in F@H @100% load 24/7 before I know its really stable.

 

[imported_LoKe]

Originally posted by: Markfw900
actually, I have had to go a week in F@H @100% load 24/7 before I know its really stable.

That hardly makes any sense. It would peak well before a week. Your instability must have been caused my something else.

 

[Assimilator1]

Originally posted by: LOUISSSSS
My idle temps are 26c with open case and 65 room temps.
I AM running prime 95 v25. And what's a good vcore for 400 FSb?

You need v25.3a to stress test all 4 cores (though slightly earlier alphas will too).
Test it using the small FFTs option as I found with my Q6600 it ran about 7C hotter under that option compared to large FFTs!:Q

Nice o/c btw! ,mines topped out at 3.05GHz but I suspect I'm limited by my cooler or mbrd.

Originally posted by: Blain

Originally posted by: LoKe
Meh, one hour isn't enough. 4-8 are required for absolute certainty.

Try 24hrs for "absolute certainty".

Yea agreed.:thumbsup:

Markfw900
lol ,well with the F@H race coming up soon I guess I'll really find out how stable mine is!

 

[LOUISSSSS]

aite this is my first time OCing a CPU. i'll run some all day/night prime95 v25.3 when i get home

 

[LOUISSSSS]

got a pretty noob question: whats the point of being 1000000% stable if everything you do on your system works well? (all daily tasks, gaming, benchmarking, video card OC'ing... etc)

 

[Rebel44]

Originally posted by: LOUISSSSS
got a pretty noob question: whats the point of being 1000000% stable if everything you do on your system works well? (all daily tasks, gaming, benchmarking, video card OC'ing... etc)

TeAm AnandTech has its own Folding@Home TeAm. If interested drop on over the Distributed Computing Forum and see about joining.

AnandTech Moderator - Smoke

 

[imported_LoKe]

Originally posted by: LOUISSSSS
got a pretty noob question: whats the point of being 1000000% stable if everything you do on your system works well? (all daily tasks, gaming, benchmarking, video card OC'ing... etc)

If that's all you do, it's fine. Like mine, a little more voltage and I could stabilize at 3.6, possibly 3.7. But it's not worth it for I rarely fold.

 

[Blain]

Originally posted by: LOUISSSSS
got a pretty noob question: whats the point of being 1000000% stable if everything you do on your system works well? (all daily tasks, gaming, benchmarking, video card OC'ing... etc)

1. A system can only be 100% stable.
2. "If everything you do on your system works well"... it is stable.
3. Many people run PCs that aren't mission critical, so an error here or there doesn't make much difference. "Here or there" doesn't mean once or twice per day.

 

[Assimilator1]

Originally posted by: Rebel44

Originally posted by: LOUISSSSS
got a pretty noob question: whats the point of being 1000000% stable if everything you do on your system works well? (all daily tasks, gaming, benchmarking, video card OC'ing... etc)

So that when you start Folding@Home for Team xx you will help us find The Cure.
[L links chopped L]
http://folding.stanford.edu/

Hey Rebel ,how about keeping recruiting to your own teams forum?
We have our own DC & F@H team here & if he wants to join Team Anandtech its team No. 198

Originally posted by: LOUISSSSS
aite this is my first time OCing a CPU. i'll run some all day/night prime95 v25.3 when i get home

Awesome 1st overclock then!
My 1st was a Pentium 200MMX @225MHz ,9 1/2yrs ago that was!:Q

Btw about the 100% stable ,you may find if you don't stress test that once every few weeks (or less) or so a program or your rig could crash ,without stress testing it before hand you don't know if its a hardware or software problem.
I guess it would depend how bothered you were about an occasional crash?

 

[LOUISSSSS]

whats a good vcore to get 3.6? i thought i was happy with 3.42 (380fsb) but i'm idling at 29C right now and i'm a geek so yea..

 

[Assimilator1]

Idle temps are irrelevant ,what are you loads temps running P95 with small FFTs?

And their is no set vcore for a specific speed ,each CPU is different so it's a suck it & see
In other words see how high you can go with current vcore ,when it crashes either up vcore or drop MHz depending upon temps.

 

[LOUISSSSS]

my load temps with p95 are in the range of 58-63

 

[SickBeast]

Originally posted by: Blain

Originally posted by: LOUISSSSS
got a pretty noob question: whats the point of being 1000000% stable if everything you do on your system works well? (all daily tasks, gaming, benchmarking, video card OC'ing... etc)

1. A system can only be 100% stable.
2. "If everything you do on your system works well"... it is stable.
3. Many people run PCs that aren't mission critical, so an error here or there doesn't make much difference. "Here or there" doesn't mean once or twice per day.

A bad overclock, even by a fraction of a percent, can cause data corruption and all sorts of problems (especially if you run a RAID-0 array).

It's very easy to corrupt Windows by overclocking too high. I had that happen a few times back in the day before I knew how to stability test.

It's always a good idea to back down a few mhz for the sake of redundancy.

 

[LOUISSSSS]

okay i just upped the VCORE in the BIOS to 1.375 and 400FSB = 3.6ghz

going to run some p95 and will report back in a bit on temps. then going to let it run overnight

 

[SickBeast]

3.6ghz is nuts on a quad-core.

 

[LOUISSSSS]

okay so i'm at 3.6ghz right now with BIOS vcore at 1.375 and cpu-z reading of 1.328 (why is it so much lower than the bios reading?

my cpu DID go up to 68C but that was only after 9 hours of prime 95. i'm fine with that since i doubt it'll never get that high again under any circumstances. unless the heatsink falls off then i have an even bigger problem lol

 

[Assimilator1]

Don't count on it ,if you play any modern-insh games then a combination of CPU load & more importantly the extra heat given off by the graphics card could easily push your CPU temps that high.Only way to be certain is to test it out.

Btw 68C is within safe limits ,but not by much! , 71C is considered the maximium by many.
Personally I wouldn't go that high but then I load my CPU 24/7 ,365 days a year (well almost) for years on end.
I guess you need to weigh up whether the higher temps it runs at is worth the extra speed you gain ,how long you plan to keep it & how often it'll be heavily loaded.

Oh btw ,I'm jealous ,I want 3.6GHz too! (mine's at 3GHz).

Sickbeast
Very true ,were you overclocking in the days before the PCI bus could be locked? man what a nightmare that could be! can't believe I used to run a S7 TX mbrd at 83MHz with a 41.5MHz PCI bus!:Q.......& without problems!