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ARGH! Once again I got a bad clocker

eyetrip

eyetrip

eyetrip

Soldato
Joined
8 Nov 2006
Posts
9,237
So, after deciding I wanted a quad to stick with for the next year, I decided a q6600 at 3GHz on stock volts would do me fine... I mean 3GHz on stock volts is generally an easy achievement right?

Well, no. This chip won't do 3GHz on stock volts. So tempted to return it (didn't get it from here)

I also managed to get an OEM chip when I meant to get retail version.

Sigh.
 
Does it work at stock? If so then that's all you're entitled to. The retailer (except the pre-OCed onces from here) never said it was going to hit 3GHz.

Getting an OEM chip instead of a retail is a different kettle of fish though.
 
Are you changing any other BIOS values to reach 3.0Ghz? Or just relying on the Vcore to get you there? (Which it won't)
 
Absolutely no guarantee of 3GHz at stock volts. I'd suggest the majority don't, at least not 24 hrs prime stable. Mine needs a BIOS setting of about 1.365v.
 
i have had probably about 10 different q6600s and have never had one that does not do 3.2ghz at 1.275v...most would do it with much less.

I've also had a few later ones with very high vid (1.325v) yet still manged 3.6ghz with ease...
 
Had a q6600 in this system some time back which used to do 3 on stock volts with no prob. Should never have sold it back when I did, but my e4300 kind of unstable these days, so figured I would get the q6600 til I switch to Nehalem.

Only reason I wanted 3 on stock was so I could leave speedstep enabled and keep power consumption down when pc idle - which is most of the time.

Will see if it will do 3Ghz with 1.35V (VID is 1.325). If not will just get rid of it on the bay.
 
don't feel too bad - and don't return !

I've bought 3 Intels recently - E6600, followed by Q6600, and then a 2180 - all brand new

all 1.325 VID - how lucky of me :) !
 
It only really bothers me because of the extra power draw. I am aware how expensive electricity currently getting, and if I run the thing at 3GHz without speedstep and have to up the voltage to around 1.4V, its going to suck a bit of juice I think.

Probably the equivalent of always having a 60W bulb on.

Should have just bought a q9550!
 
what do you use the quad for, perhaps you might be better with a dualy as they will do 3.8-4ghz with barely any voltage at all.

Also the difference between 1.3 and 1.4v is not that large. At stock 1.25v a q6600 will draw about 75A. If you assume that at 3ghz it draws 85A under 100% load then the difference between 1.3 and 1.4v would be about 8.5 Watts (110.5W vs 119W)
 
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gurusan said:
what do you use the quad for, perhaps you might be better with a dualy as they will do 3.8-4ghz with barely any voltage at all.

Also the difference between 1.3 and 1.4v is not that large. At stock 1.25v a q6600 will draw about 75A. If you assume that at 3ghz it draws 85A under 100% load then the difference between 1.3 and 1.4v would be about 8.5 Watts (110.5W vs 119W)
Click to expand...

:eek::eek::eek::eek: 75A and 85A? :confused: you sure? That would mean you would need 900W-1020W just for the cpu and it would be mighty toasty! :p
 
gurusan said:
what?

dude, the CPU is running at 1.2-1.4v! not 12v!

lol
Click to expand...

Yes I know power=volts x resistance (amps)

True and I do know that but a psu only supplies a certain amount of ampage to the mobo, 20-30a max

I didn't think mobos then increased the ampage available? Or am I wrong there?

Just googled it and I am wrong :o

q6600 rated for 115amps max according to Intel.

SOrry my mistake, goes to hide in corner with his old physics teacher's voice ringing in his ears "How on earth did you ever manage to get an A in physics A level?"
 
the psu may only feed 30A to the mobo, but that's on the +12v rail.

The CPU is operating on 1.2-1.4v...I don't know anything about mobo design but obviously it takes the power from the 12v and transforms it to the appropriate voltage for the CPU. The available power is the same...the voltage is not.

So a 100W drain from a 1.4V CPU will draw 71.4A at the mobo...which will show up as an 8.3A current draw from the +12V supply
 
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