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Q9450 Voltage Question

post #1 of 8
Thread Starter 
Hello. I have an Abit IP35-E and a Q9450. Unfortunately I have a huge vdrop in my system. If I set my voltage to 1.39V, once my system is booted (Win 7) the voltage becomes 1.38, and under 100% load (Prime95) it goes to 1.30V. I understand that the limit according to intel is 1.3625V and that 45nm cpus are kind of delicate. Do you guys think it's relatively safe to run these settings? When I stream (Dota 2) on justin.tv my cpu goes to 70% and my voltage to 1.31 so I think I'm okay, I just don't want to kill my cpu browsing cute pictures of kittens while my cpu is at 5% workload.
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post #2 of 8
Quote:
Originally Posted by Pasha View Post
I understand that the limit according to intel is 1.3625V
No,no its not the vcore limit at all.
What your quoting is the VID range,thats NOT max vcore

EDIT:
Read THIS pdf file and look at 2.3 Table 2-2 for max vcore.



Now thats max and theres no way i would go up to that myself but im sure your going to be able to use more than 1.3625 without and major damage.

I used 1.41 myself on a yorkfield 24/7 under water for 6 months and i cant say i noticed any signs of degrading as day to day use remained the same throughout.

What i will say is that its likely temps will limit you before vcore...unless your running chilled water loop
Edited by superj1977 - 10/15/11 at 6:13pm
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post #3 of 8
Thread Starter 
Quote:
Originally Posted by superj1977 View Post
No,no its not the vcore limit at all.
What your quoting is the VID range,thats NOT max vcore
Oh, that's great, do you happen to know what it is from the top of your head? I shall go google now. Another question, is it possible to just turn vdrop off?
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post #4 of 8
Quote:
Originally Posted by superj1977 View Post
No,no its not the vcore limit at all.
What your quoting is the VID range,thats NOT max vcore
This.
You can go up to 1.45v on these chips.
You can also pencil mod your motherboard so you dont have any vdrop and vdroop.
That way you can OC higher but with a multi of x8 you might get 4Ghz if you're lucky but I doubt that board will do 500Mhz FSB.
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post #5 of 8
You're fine.

And that vdroop isn't all that bad. Without Load Line Calibration my 1.440v would become ~1.37v.

1.3625V (VID) is the maximum "minimum voltage required to run stable at stock speeds" the cpu can leave the factory with. 1.45 is the absolute max for those chips and that's outside what Intel calls the "Safe Operating Zone." But you're under water so you could run 1.42 or there abouts 24/7 and be good.
 
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post #6 of 8
Thread Starter 
Are you guys sure?
This post: http://www.overclock.net/intel-cpus/...age-q9450.html
Scares me.

But alright, I can probably reach higher than 3.6Ghz if I give this puppy even more juice. Another problem I have is that my cpu cores have a 10 degree C difference. I may have to lap my cpu block.
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post #7 of 8
I updated my 1st post with some info for you to read.
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post #8 of 8
Thread Starter 
Tyvm good sir.
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Hard DriveCoolingOSMonitor
1TB Crucial MX200 Some big aircooler Ubuntu 16.04 and Win 7 Dell P2314H and Dell P2714H 
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Ducky Zero TKL, CM Novatouch, Model M industrial  EVGA SuperNOVA 750 G2 Phanteks Evolv Tempered Glass  Razer Mamba 
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Ducky Zero TKL, CM Novatouch, Model M industrial  EVGA SuperNOVA 750 G2 Phanteks Evolv Tempered Glass  Razer Mamba 
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