Quick Core Voltage question.......

mc6701

mc6701

mc6701

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20 Jan 2008
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77
Hi all,

Just a quick question about Core Voltage.........

Been playing with over clocking my q6600 on a Asus P5KC mobo and at the mo got it running at 3.2 ok.

I have been doing a bit of reading and googling etc but am unsure when i am read people core voltage which figures i should be looking at.

In my bios i have had to set it to 1.5375v to run at 3.2ghz (9*356) but when on CPU-Z when idle the Core Voltage reads 1.480 ish and when under load (using Prime95) 1.376 ish.

Temps have been 37 idle and max of 65 under load (this is core#0 others been a few deg lower?)

I want to try to get to 3.6 ghz if poss but will need to increase core voltage to do so (i'm guessing) and have seen that i should be going above 1.55 but is when under load as shown in CPU-Z or my bios setting??

The ram im running is 4gb (4x1) Geil Black dragon pc2-6400 800mhz at 4 4 4 12 on 2.0volt and my gfx card is a Gigabyte 8800GT all in a Antec 900 case with a Freezer pro 7 on W7 64 bit.

Thanks in advance

Mark
 
your issue is the vdrop and vdroop.. don't think that board has a loadline calibration option? If it does you could use that to stop the vcore drop
 
Thanks Pneumonic,

So if it doesnt have these option will i be able to run my core voltage in my bios higher as long as it not hitting 1.5v + when under load (figure in CPU-Z)??
 
The difference between what you set in the bios and what you see via cpu-z is known as v-drop/v-droop.

A common occurence - my Q9650 is set in Bios @1.1825v whereas cpu-z shows 1.160 as of now.

I have watched the voltage change when the cpu is put under load so would guess that even though I've told the bios to put through a certain voltage rather than simply putting only that voltage through it more treats such like a maximum. (Hopefully not wrong in my interpretation - If I am then would someone please correct me - thanks:D)

I believe that when most people talk about the voltage being put through their chip they are talking about the volt setting in the bios NOT what cpu-z etc reads.

Would suggest you read up about v-droop - on certain boards there are steps you can take to reduce its effect .

As always too slow !!
 
mc6701 said:
Thanks Pneumonic,

So if it doesnt have these option will i be able to run my core voltage in my bios higher as long as it not hitting 1.5v + when under load (figure in CPU-Z)??
Click to expand...


IMO - NO - if you do your then relying on v-droop occuring , which it may not. It's probably the case that all you might do is overvolt slightly which may only result in the chips life being a little shorter than it otherwise might have been but .....



Hopefully not too slow this time !!
 
just been reading about volt moding.....with a pencil!?!

Do i simply draw on the relivant bit with a pencil??

Also there was a mention of putting some tape on the 'bit' first.....so without wanting to sound to stupid would i put tape on the thing and then draw on the tape with the pencil??
 
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