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Athlon x3 435 Vcore (undervolt)

post #1 of 3
Thread Starter 
Hi experts.

Iam new.And had some questions and observations.

I have this processor a triple core 2.9 Ghz which in bios shows default vcore as 1.425 v.Of course depending on load this varies between 0.8 something to 1.425v .

Reading many of the posts here seems to suggest that 1.4 v is a very high vcore and is usually done to overclock.I have not done any overclock on this, but i plan to slowly. smile.gif

Yesterday i had my temps touching 65C playing bad company 2, and i today reduced the vcore in bios to 1.2v.And my temperatures have dropped a whopping 20 degrees.I only use stock cooler which comes in the box.
The processor seems to work just as well as before.
Currently my vcore in bios i have changed to 1.275v and readings from coretemp and cpuid:

Coretemp : 1.1 v at idle and full 1.425v at load
cpuid : 0.912 idle and 1.232 at load ( used to report 1.488 before at load)

1.Why do you think this processor has such a high vcore?
2.Anyone else have similar experiences?
3.I also read somepeople say the stock vcore on this is 1.3 etc.,so different people have different vcore readings in bios?
4.Is there any problem to undervolting? (Frankly this lower voltage seems just right for this proc ,its really calmed down.)
thanks

rajeev
Edited by indus - 1/30/11 at 2:17am
post #2 of 3
1. Sometimes the motherboard at auto puts a very high vcore.
2.Yes I have had similar experiences with my i7.
3.Yes all depends on what the bios thinks at auto
4.No problem at all, unless you do too much and it creates unstablility.
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post #3 of 3
Quote:
Originally Posted by indus;12195533 
1.Why do you think this processor has such a high vcore?
2.Anyone else have similar experiences?
3.I also read somepeople say the stock vcore on this is 1.3 etc.,so different people have different vcore readings in bios?
4.Is there any problem to undervolting? (Frankly this lower voltage seems just right for this proc ,its really calmed down.)

1) the stock voltage on differs between different processors, it's just a fact. This is because all chips are different and are tested to make sure the chip can run at the spec AMD decides.

2) I've never had to undervolt anything since temps haven't bothered me, but I've seen the VID differences many times, for example when I built 6 rigs with i5 760 for my school. And yes the temps varied about 10C between different procs, but all of them ran pretty cool @ full load.

3) spec.png

4) no problem with it, just make sure to test if your processor is table or not. Most easily achieved with prime95, linX or something similar.
 
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[250GB 840EVO +2x SpinpointF3 1TB RAID0] [LD PC-V2 SS Phase Change] [XSPC X2O 750 pump/res] [Monsta 360 full copper + EK XT 360 + XT 240] 
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RAMHard DriveCoolingCooling
4x4GB vengeance, 2x4GB predatorX, 2x1GB OCZ DDR2 Intel X25-M 80GB LD PC-V2 SS Phase Change OCN Marksman 
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