PRIME 95 and 5v rail drop :(

[ocforums123]

just look at this pic the 5 v drops down quite a bit is this normal when teh CPU is running at fullll usage

btw its running at 1.92ghz at the moment instaed of the normal 1.83ghz.

[ocforums123]

oh ya the rails keep changing slighy and ithere usualyly a little higher but for 1 sec every now and then the they drop as shown. this is the lowest they go

[Xplos!ve]

yer dont worry if it says "OK" in the box its fine if ur that worried a decent psu like antec or enermax etc keep to these rails alomost exactely but only drop VERY slightly so the 5V rail will drop to 4.9 MAX but urs is at just over 4.7

[eobard]

I've had that problem myself. You're pushing your PSU too much. I did a volt mod to my motherboard to up my core and it allowed me to get another 200mhz out of my CPU but it just killed my 5v. It wasn't heat because I watercool, the PSU just couldn't take it. Everyone's experiences are going to be different, there really is no true magic number, if your system stays 100% stable with your 5v line at 4.2v then 4.2v is good enough, but based on the law or averages I'd be expecting you'll get lockups under heavy load with a 5v that low.

addendum: This shouldn't be in cooling.

[eobard]

*push*

[ocforums123]

well they only go this low for a half a second every minute so i dont care.

its always at 4.919 with moderate usage.... goes down to 4.784 or "4.8" when doing highly intensive stuff, but even then its usaully at 4.8 something usually.

[topslop1]

What kind of a psu do you have? Is it quality? You could try doing the 5v rail mod to your motherboard and then stabilizing it somewhat.

[canadianpsycho]

Does the dip affect stability? 4.78 isn't great, but if you aren't looking to push more and you're stable, you really wouldn't need to worry about it.

You could always grab a different PSU, especially if the one you have isn't a quality brand.