Quick question for PSU

fantasi

My Yngy is My HoneY!
Joined
24 Jan 2004
Messages
307
Ok, i have my thermaltake TWV 480 PSU and its saying my 3.3v is running on 3.1-3.15 is that low? because it actually alarmed and pop up saying it went down to 2.9 something. Whats the spectrum for the 3.3v rail?
 
If you have cool n quiet on, you can see fluctuations as large as that pretty easily.

The 3.3 V rail should typically be solid or have very little variance if you have no proc clock speed changes (i.e. C n Q is disabled).

Mine doesn't change.
 
hmm, i have turned CnQ off now, and the 3.3v rail is on 3.07-3.10. Is there any way i can make it go higher? take off a hard drive or something? or take of a pci card? what does the 3.3v rail get used for?
 
Some psu's have pots (potentiometer's) that you can manually adjust. Mine does, as do most PC Power and Cooling psu's, for customizing a little more.

Most don't. So you might be stuck with what you have. It shouldn't make too much of a difference. Keep in mind, some of the software read-outs are a little off anyways.

-edit-

3.3 == rail for cpu/mem/mem controller typically. IIRC
 
well i have tried looking at corecentre, and also the one in the bios hardware temp/voltage and can see that the 3.3v rail is going at 3.09v. Could a lower voltage, make my graphics look choppy, aka something like if I were to have a damaged card? will check if its the card by getting one from a friend, but other then that, I think i need a new PSU. :(
 
well i have tried looking at corecentre, and also the one in the bios hardware temp/voltage and can see that the 3.3v rail is going at 3.09v. Could a lower voltage, make my graphics look choppy, aka something like if I were to have a damaged card? will check if its the card by getting one from a friend, but other then that, I think i need a new PSU. :(

Yes it can make your video choppy like a damaged card. I've seen a faulty/worn out power supply do some weird things (ever seen the Windows95 blue bar turn green?).
 
OMG, fixed my problem. after some re-checking and pushing all my power connectors, i now get a steady 3.34v. huhu thx, all. reps as usual :).

@weasel: thanks for your insight, just reconfirm that it wasnt my gpu. thought it was me :). thx.
 

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