• Welcome to Overclockers Forums! Join us to reply in threads, receive reduced ads, and to customize your site experience!

I/O voltage

Overclockers is supported by our readers. When you click a link to make a purchase, we may earn a commission. Learn More.

FrankMasterFlash

Senior Member
Joined
Dec 17, 2000
If I put the I/O voltage at 3.65(3.7by MBM)(Default 3.5) will it hurt anything in my system? Will this shorten the life of my cards? I am trying to get my system stable @ 150mhz FSB
G200 16meg
Iomega BUZ
RealMagic Hollywood Plus
Lucent WinMondem
Promise ATA100
AWE64
2x128meg Generic PC133 CAS3
 
Thats a good question? I'm not really sure of the ill effects of raising your V\IO voltage. I always had mine running at 3.6v's on my BE6-II. Maybe thats why it died the otherday! Not really sure though. I'd be interested in hearing some of the replies as well.
 
High VIO will kill a board faster then raising CV it really doesnt take much to fry things but at 3.6 you should be all rite, some have run higher but it really gets risky. since all MB are different its hard to say exactly how much VIO one can take, if i had the option i would probably run at 3.6 but i would proceed with caution. Before you try raising VIO i would as long as your CPU is cool try raising your CV a little also do you have sideband disabled in your registry? for me VIO would be my last resort to gaining stability.
 
outhouse (Jun 24, 2001 12:19 a.m.):
High VIO will kill a board faster then raising CV it really doesnt take much to fry things but at 3.6 you should be all rite, some have run higher but it really gets risky. since all MB are different its hard to say exactly how much VIO one can take, if i had the option i would probably run at 3.6 but i would proceed with caution. Before you try raising VIO i would as long as your CPU is cool try raising your CV a little also do you have sideband disabled in your registry? for me VIO would be my last resort to gaining stability.

I did try raising the CV a bit but it didn't do anything. Side Band addressing is currently enabled. How do you enable/disable Sideband in the registry? Will I lose any performance in the G200 if it is disabled?
 
there are instructions in the tips section look under video card performance and you should have no problem, it helped me out quite a bit and you will not loose performance.

goodluck
 
outhouse (Jun 25, 2001 12:22 a.m.):
there are instructions in the tips section look under video card performance and you should have no problem, it helped me out quite a bit and you will not loose performance.

goodluck

I tried it but I couldn't find anything in my registry with Sideband. It said in the article it was for Via chipset's and I am running BX...so what next. I tried Powerstrip and it just locked up when I tried to disable it.
 
It could be allot of things that are causing instability if you could tell us what is your system doing when it crashes at higher FSB settings? I noticed your running generic memory I would guess you have your memory turned down to minus clock speed but there are other settings [i think that can turn your memory down a little more] and this may gain stability, when trying to hit those high FSB settings quality memory really helps. Also try www.rojakpot.com and see if theres anything in there BIOS guide that will help out I learned quite a bit from reading this. Sorry didnt know disabling sideband would not work on your MB.

You may try taking PCI cards out and try to see if you can isolate the problem but first give us a little more info on whats happening when your PC gets unstable.
 
3.6 is safe
3.7 is asking for trouble
3.8 is the waiting for stuff (most often ram) to die game
3.9 just does 3.8 faster
4.0 may the overclocking gods have mercy on your hardware
 
jay (Jun 26, 2001 10:39 p.m.):
3.6 is safe
3.7 is asking for trouble
3.8 is the waiting for stuff (most often ram) to die game
3.9 just does 3.8 faster
4.0 may the overclocking gods have mercy on your hardware

What about 3.65?
 
Asus has been sneaking up I/O voltage for years. The lowest possible I/O value I can get with my P3B-F is 3.54v however, it fluctuates up to 3.61v(not rapidly). My Q: Do hardware manufacturers take Asus's love affair with out of spec I/O values into account? Spec is 3.3 Volts. Only one of my Asus mainboards has spec I/O. And it isn't adjustable.

I imagine that makers of DIMMS, for instance build the modules with a 10% tolerance for out of spec I/O voltage. I hope..
 
FrankMasterFlash (Jun 27, 2001 12:19 a.m.):
jay (Jun 26, 2001 10:39 p.m.):
3.6 is safe
3.7 is asking for trouble
3.8 is the waiting for stuff (most often ram) to die game
3.9 just does 3.8 faster
4.0 may the overclocking gods have mercy on your hardware

What about 3.65?

well it will not kill anything right away. may shorten the llife of your hardware, but will you still be using in in a few years? if you can geta sable system with 1.65 go fo it, if not i would back it down a tad.
 
Back