Q6600 g0 Overclock Questions

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slamcmy

Limp Gawd
Joined
Sep 10, 2007
Messages
241
hi guys, thanks for reading my post, i hope you can help me, i got a thermaltake v1 hsf and decided to take my q6600 g0 from 2.7 to 3.0 ghz...when i was on 2.7 my bios was set everything to auto and everest and cpu-z were reading 1.20 volts on cpu voltage, then when i took my cpu to 3.0 ghz both cpu-z and everest were reading 1.40 volts, and my temps under prime95 small ftt's torture test were close to 70 C, so i started reading some posts here and a lot of people were saying that we shouldnt set cpu voltage to auto cause it always gives more voltage than the one its needed...so as an average most people here running their q6600 g0 at 3 ghz or more were using 1.2625 volts...so i said lets change the bios cpu voltage from auto to 1.2625, i pushed f10 and started my pc.....now here comes the question why cpu-z and everest are reading less voltage that the one i set on the bios.....they both are fluctuating between 1.18 to 1.22 volts, ( no less and no more than that ) so which should i trust, im sure i set 1.2625 volts for my cpu on my bios, and they are reading less than that, why.
is 1.2625 volts a normal voltage for a q6600 g0 at 3ghz ?
my temps with those same settings under prime95 small ftt's torture test are core1/2/3/4:
55/55/52/52. ( temps from everest ultimate )
im running now prime95 small ftt's torture test to see if im stable with these settings, how long should i run it to know that im stable ?

what do you guys think of my cpu voltage and my temps....thanks for taking the time to read my post..........:)
 
there is always a diff b/w what you set in bios and what the monitors actually read. thats called vdroop, you can read about it in the forums

~55 is not a bad temp for q6600, but watch out for 60+. 55 seems to be a tad high for 3ghz, as i get about 58 at 3.2 and 1.36v using prime.

if you are prime stable for 12 hours you are pretty good to go, its as stable as it will get. but i would be happy with like 6 hours or so. you can always leave it running overnight. if you do, run a program that logs your temps every 1 min or so. if it does crash, the log will tell you how long it ran and logged temps and what the final temps actually were. good luck
 
youll be fine with anything under 70c.

Im wondering whats going on with my G0 q6600 though. stock it loads at around 58.

doesnt seem to be running so cool in a cool environment/and case.

2 120's plus the 120mm PSU fan above. on a GB ds3L, with AS5, mounted correctly.
 
Very nice simple overclock there. Have you tried to push it more then 3.0gighrz yet. I bet with those temps you could go about 3.6gighrz with ease.

Good Day
 
3.6 is not a given. Mine will do 3.4 at 1.4v all day but needs at least 1.5v for 3.6 :(. My VID is very high though, I got a crappy chip. Can't hurt to try though.
 
damn no luck for me.....when i came back from watching some movies in my friends house, my pc was at the logon screen....so that tells me that my pc got an error and restarted it self.....does that mean i have to raise the cpu voltage more ? is there a way to know why it restarted ? can i damage my pc if this keeps
happening ( restarting automaticlly ) ?
 
KILLER_K said:
Very nice simple overclock there. Have you tried to push it more then 3.0gighrz yet. I bet with those temps you could go about 3.6gighrz with ease.

Good Day
Click to expand...

i am stable at 3.2 but cant hit stability at 3.6. i have even bumped northbridge and cpu voltage way too high and my system still isnt stable, though it doesnt make much sense b/c there is a 1:1 fsb:ram ratio and should inherently be stable. i guess my cpu or mobo isnt up to it
 
slamcmy said:
damn no luck for me.....when i came back from watching some movies in my friends house, my pc was at the logon screen....so that tells me that my pc got an error and restarted it self.....does that mean i have to raise the cpu voltage more ? is there a way to know why it restarted ? can i damage my pc if this keeps
happening ( restarting automaticlly ) ?
Click to expand...

restarting wont damage your computer as long as the voltage isnt too high (in the 1.45+ range). the G0 has a max voltage rating of 1.5v, but i would keep it far below that, nothing more than 1.4 unless you are wc'ing.

you probably will have to bump the cpu voltage higher. dont be afraid to go into the 1.3 range for stability as long as you are able to dissipate the heat.

also, make sure you properly applied your thermal paste, here is a guide:
Arctic Silver Guide
 
aggiestudd07 said:
there is always a diff b/w what you set in bios and what the monitors actually read. thats called vdroop, you can read about it in the forums
Click to expand...

PLEASE STOP THE MADNESS! This is NOT vdroop, despite the fact that people continue to insist it is. vdroop is the difference in voltage between idle and load on the CPU. It is a safety measure. The effect we are observing here has to do with the way that the supplied voltage is regulated. It is normal to see a difference between the input voltage and the readout of voltage. Between the two, I would trust what the voltage is reading in the monitor, not what you put in the BIOS.

There isn't really a "normal" voltage, since all chips are different, but to give you an idea I'm running my Q6600 at 1.248/1.24 V idle/load (which ended up being something like 1.3675 in BIOS) at 3.2Ghz with temps ~32/57 idle/load.
 
I thought that was what vdroop was. If that is not the case can you please explain what vdroop is?
 
Krispy said:
I thought that was what vdroop was. If that is not the case can you please explain what vdroop is?
Click to expand...

thats what i thought, but apparently

aethelwulf said:
vdroop is the difference in voltage between idle and load on the CPU.
Click to expand...

i would really like to see the actual answer, as my explanation of vdroop is exactly what was explained to me when i asked the same question a while back. i guess we will never know then? :D
 
vDROP = difference between voltage setting in Bios and the actual voltage reading on the CPU. it means nothing and you can always offset it with more in bios, as its not really getting as much as it says.

vDROOP = difference in voltage between IDLE and LOAD (this might cause instability at load and force you to use higher vcore)

the end.
 
shiznit said:
vDROP = difference between voltage setting in Bios and the actual voltage reading on the CPU. it means nothing and you can always offset it with more in bios, as its not really getting as much as it says.

vDROOP = difference in voltage between IDLE and LOAD (this might cause instability at load and force you to use higher vcore)

the end.
Click to expand...

the best explanation i have seen yet, you should post that in a sticky or something, help clear up the confusion
 
Yes very good clear and down to the point explanation. Thanks for the heads up on it.

Good Day
 
im still running prime95 small ftt's torture test and checking my temps..... also im trying to figure out how to upload images to my post, so you guys can have a clearer picture....

thanks
 
It should also be noted that vDroop is intentional, not some kind of dodgy bug. It's part of the voltage regulation specification. That's not to say that bypassing it might allow a higher overclock, but it's not there by accident.
 
all right guys after almost 16 hrs of running prime95 small ftt's torture test, my overclock seems stable, i had to change the vcore on the bios from 1.2625 volts to 1.2875 volts as you can see everest and cpu z arent reading that amount of voltage they are reading 1.21 volts and 1.208 volts ...... so what do you guys think, after 16 hrs can i say that my overclock is rock stable now, what do you guys think of my temps ( my thermaltake v1 is set to medium speed i can always increase that if you guys think my temps are high ) this may sound weird but isnt 1.21 volts low voltage for a 3.0 ghz overclock, i was thinking like 1.27 volts or something.......well any comments please .....

 
slamcmy said:
all right guys after almost 16 hrs of running prime95 small ftt's torture test, my overclock seems stable, i had to change the vcore on the bios from 1.2625 volts to 1.2875 volts as you can see everest and cpu z arent reading that amount of voltage they are reading 1.21 volts and 1.208 volts ...... so what do you guys think, after 16 hrs can i say that my overclock is rock stable now, what do you guys think of my temps ( my thermaltake v1 is set to medium speed i can always increase that if you guys think my temps are high ) this may sound weird but isnt 1.21 volts low voltage for a 3.0 ghz overclock, i was thinking like 1.27 volts or something.......well any comments please .....

Click to expand...
Those are pretty good results, mine needs 1.4v for 3.4ghz. Did you have round-off checking enabled in Prime95?
 
Did you have round-off checking enabled in Prime95?
Click to expand...

oh shit, i didnt know that, is that really necessary ? yesterday i finished running prime95 small ftt's torture test for 26 hrs with no errors, for what i know about round off checking it check for errors or something like that, well when i stopped running prime95 right at the bottom it says 0 warnings, 0 errors, is that basically the same ? this is a screen shot of those 2 images while running and after i stopped it.

running prime95


after i stopped it


right now im running prime95 small ftt's torture test with round checking enabled for almost 10 hrs and i have no errors yet......so what do you guys recommend ...

if prime95 ran for 26 hrs with no errors (round checking not enabled)then my overclock is still not stable?
im running prime95 now (round checking enabled)for almost 10 hrs and still no errors, should i wait more?
how does my temps and voltage look for a 3.0 ghz overclock?
thanks for all your help guys
 
If you can run it with round off checking enabled for 10 hours I'd say you are a-ok. Hell I stop after 2-3 hours and call it even, no real program is gonna kill the cpu that much. Your CPU can do much more than 3.0, I wouldn't be surprised if you can run 3.6ghz with 1.4ish volts prime stable.
 
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