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View Full Version : Raising the VCore ???

abb1
09-30-01, 08:15 PM
Hi, this is probably a stupid question, as I have always slightly overclocked without any problems. What does raising the VCore voltage do ? Can I overclock higher with FSB, or just with clock multiplier? I have an A7M266, so I cannot overclock by multiplier. Will raising my VCore voltage give me a higher FSB overclock? Please let me know. Thanx.
Abb
CrackedSKull
09-30-01, 08:33 PM
Raising the vcore makes more volts run through the cpu, usually causing it to be more stable at higher overclocks. However it does cause the chip to run hotter, and if you can't keep the temp down below 50c, it's not worth it. Also rasing it too much(over 2.1v), even with the best cooling can severly shorting the life of your cpu and possibly motherboard. It could allow a higher fsb, but usually other things stop the fsb from geting beyond 150 or less like memory, northbridge overheat, motherboard, some agp cards, and other factors. What are you running at now(fsb and multiplyer), what kind of memory do you have? What are your temps? It is possible to change the multiplyer right on the processor by connecting certain "L" bridges.
Eliminator
09-30-01, 11:01 PM
I have an A7M-266 w/ 512 PC-2400 Corsair DDR. I would like to know how the heck do you raise the vcore voltage on this mobo??? I can only get up to 1.536 GHz because my voltage is stuck at 1.7v! grrrrrr

Things were soooo much easier on my Abit mobo. I could change EVERYTHING thru the Bios. Now I'm starting not to like Asus.

Have any suggestions on raising the vcore on the A7M-266???
abb1
10-01-01, 03:52 AM
Your VCore can be adjusted through jumper settings on your motherboard. Check page 24 of your Manual for the exact location.
Abb:D
abb1
10-01-01, 04:03 AM
In response to CrackedScull, I have an Athlon 1.4GB @ 1.49GB (10.5X142) (142 is the highest stable rate). My temperatures are at a maximum of 39-40 degrees celcius. I have 512mb Samsung PC2100 at Cas2. I would like to get my FSB higher and have it stable. Does this help?
Abb
Sonny
10-01-01, 09:54 AM
How about making a sig with your system spec to help us help you:D
Mr.Lansing
10-01-01, 10:23 AM
Yes Raising your Vcore will help to make your system more stable when overclocked.
But raising it too high will cause the CPU to burn will that's bcause of the temp
here's a cycle that i saw on a site but i 4got what site
CPU NOT STABLE > RAISING VCORE > CPU BECOMING MORE STABLE > HIGHER TEMPS > CPU NOT STABLE

will i make my Vcore to 1.85 (highest) and i ain't got a single problem yet so far
But successful overclocking depends on lots of factors
e.g H.D.D, CPU, Mobo, Ram etc...
abb1
10-01-01, 07:12 PM
Heres my signature (if it works)
Abb
Eliminator
10-01-01, 07:44 PM
Originally posted by abb1
Your VCore can be adjusted through jumper settings on your motherboard. Check page 24 of your Manual for the exact location.
Abb:D

This is fine, but is there any way of changing the vcore thru the Bios?
I hate taking apart my tower every time I want to tinker with settings, and besides, I'm lazy.
abb1
10-01-01, 08:59 PM
This in response to Eliminator; No, the VCore can only be adjusted on the Motherboard. Asus will never change this, as they will never produce a multiplier in the Bios. This was already confirmed to me by Asus Tech.
Abb
thefly
10-01-01, 09:33 PM
what about backing the ram timing off a bit and seeing if you can hit faster fsb ?
Eliminator
10-01-01, 10:49 PM
Thanks for the info, abb1 !
!-=sky=-!
10-01-01, 11:57 PM
the ram should be able to take faster speeds....

i have one and it craps out at 151 fsb but that's one of my pci cards holding me back
abb1
10-02-01, 10:40 AM
Well, I have raised the VCore to 1.85 and was able to get an additional 21mhz out of it, at a temperature loss of 3 degrees. Was it worth it? You bet, every stable mhz counts!
Abb:D