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My CPU has higher VID by default.

post #1 of 29
Thread Starter 


Hi, I just noticed that my CPU has a default VID by 1.4750, why is that so high? I saw some people with the same CPU with default VID at 1.35, 1.4 and etc. Does this mean I can use higher voltage on my cpu? Anyway my CPU is overclocked at 4ghz 1.488v, I cant go lower so im stable at this voltage, do you think 1.488v everyday use is fine? I know that max is 1.55v and you should be under 1.5v, but I cant go more then 1.488 or I will bluescreen =(...oh well.

Denebz
post #2 of 29
As long as your temps are fine under load I wouldn't worry about it. And no I don't think that means you can use higher voltage.
post #3 of 29
Well it tends to be that the lower your VID the better your cpu can overclock while keeping the volts down.
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post #4 of 29
Thread Starter 
Well my idle temp is 33-34 when browsing, so thats good and full load is about 55c on hyper 212 push/pull. But if I game my cpu temp never go above 50.

On 4ghz 1.488v and 2600nb. If I use my 3.7ghz settings with 1.35v my max load temp wont ever go above 48c. that's awesome but Im really pushing the limit on the hyper 212 evo I guess at 1.488v. In the future I will get a intel those just work much better and much lower voltage.
Edited by Denebz - 11/27/12 at 11:13pm
post #5 of 29
Stock voltage for a Phenom II 1.35v @ stock speeds. Not every CPU oc the same.
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post #6 of 29
My 965BE was stock at 1.375v on Gigabayte GA-990XA-UD3. With 1.375 it could do 3.8GHz no sweat, and with a small bump (+0.0125?) it could do 4GHz stable.

But I did not want to overclock, and 1.375v was too much for my liking, so I used PhenomMsrTweaker, and lowered the voltage for each CPU state (P0-P3) individually, at stock frequencies. I can tell you that at 17x200 = 3400MHz (stock) it was stable at 1.2625v, and MUCH cooler (I wanted a silent rig). Even worse, with PhenomMsrTweaker I saw that the same voltage (1.375) was used on ALL states - including 4x200=800Mhz (?)!

Of course, your CPU might take other voltages per frequency, but you could give it a try. If you want, I can give you my table of frequency/voltage as a starting point. And to answer your question, I think 1.488v is a little higher for daily usage if you don't have proper cooling. The temps you give, at idle and load, for 1.488v.. look a little too optimistic smile.gif do you have cool ambient temps?

PS: I did not change the voltage in BIOS at all, only trough PhenomMsrTweaker.. The reason was that I wanted to be sure that at boot up I have a "safe" voltage so I don't have to reset all the time the BIOS if anything goes wrong. Plus, the voltages applied by PhenomMsrTweaker are an offset from the values reported by BIOS (so, lowering in BIOS also lowered in this little program, and since I had everything at the limit, in would crash in windows).

EDIT: here's the table:
You have to read it by rows - and the lower ones are for other P-states, with the minimum stable voltage for each combination. The first column is a simple formula - higher clock and higher CPU-NB freq with lower voltage gives a bigger number => should be better.
Edited by Paranoid - 11/27/12 at 11:55pm
post #7 of 29
VID is the stock voltage the chip needs to run stock speeds. So your chip being that high means you got kind of a sucky chip, compaired to those lower VID chips.
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post #8 of 29
Thread Starter 
Quote:
Originally Posted by Paranoid View Post

My 965BE was stock at 1.375v on Gigabayte GA-990XA-UD3. With 1.375 it could do 3.8GHz no sweat, and with a small bump (+0.0125?) it could do 4GHz stable.
But I did not want to overclock, and 1.375v was too much for my liking, so I used PhenomMsrTweaker, and lowered the voltage for each CPU state (P0-P3) individually, at stock frequencies. I can tell you that at 17x200 = 3400MHz (stock) it was stable at 1.2625v, and MUCH cooler (I wanted a silent rig). Even worse, with PhenomMsrTweaker I saw that the same voltage (1.375) was used on ALL states - including 4x200=800Mhz (?)!
Of course, your CPU might take other voltages per frequency, but you could give it a try. If you want, I can give you my table of frequency/voltage as a starting point.
PS: I did not change the voltage in BIOS at all, only trough PhenomMsrTweaker.. The reason was that I wanted to be sure that at boot up I have a "safe" voltage so I don't have to reset all the time the BIOS if anything goes wrong. Plus, the voltages applied by PhenomMsrTweaker are an offset from the values reported by BIOS (so, lowering in BIOS also lowered in this little program, and since I had everything at the limit, in would crash in windows).

Well every cpu is differnt, my cpu can not be stable at 3.8 on 1.375 its impossible, it will crash on prime95 in 2 min. it need like 1.425 for stable 3.8 for me, and 1.488 for 4ghz =(. I guess you have a golden chip as some says. I can go 3.7ghz at 1.344v stable but after 3.7ghz its a HUGE increase on voltages on 3.8 - 4 ghz.from 1.425v to 1.488v, anyway thanks for your help, I like to run at full max speed all the time cuz I have a good cooler.
post #9 of 29
Thread Starter 
Quote:
Originally Posted by ShortySmalls View Post

VID is the stock voltage the chip needs to run stock speeds. So your chip being that high means you got kind of a sucky chip, compaired to those lower VID chips.

I dont think its true, I can run on max normal "stock" voltages at 3.7ghz on 1.344v stable easy. And thats 300mhz overclock then stock, I need only high voltages after 3.7ghz.
Edited by Denebz - 11/27/12 at 11:58pm
post #10 of 29
The mobo will set the voltage on it and most of the time it is way off. 1.35v is stock voltage for any Phenom II chip. If anyone set there Phenom II to 1.35v @ stock speed it is always stable.
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