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View Full Version : PSU Voltages and components...



Hell-Fire
12-02-2003, 10:45 PM
I was curious what kind of effect higher psu rails might have on other components in a rig. When looking for the monitoring spots on my Ti4200 for the vgpu and vmem, I found several spots that were hitting the exact same reading as the 12v rail on my psu. I know that the card is receiving the voltage and the ICs are responsible for regulating it and blah blah blah, but curious if any negative effect could be present.

Reason I am asking is that after running 3DM01 in a loop for 12 hours to help burn in some ddr, I have started having weird probs with my vid card. The colors get all funky sometimes, colors are missing altogether other times, little green pixels start showing up...but only on images..as in peoples avatars and sigs. When I came to check on my system to see if it had crashed or was still looping, the monitor was in stand by and wouldnt come out of it...so I restarted the rig. On reboot I had thin vertical pink lines running thru everything once in windows....oddly enough they went away after awhile...? :confused:

Also, when I took out my vid card to check it to see if it was hot, and to also check some resistance readings for the vmod I was thinking of doing, the "Red Light" near the AGP slot bumped on quickly then went out...thats the light to warn you if you are plugging in the wrong voltage type of vid card...which it isnt.

Any clues...

typer77
12-03-2003, 12:25 AM
I am wondering about the same thing. I have my 3.3V up to 3.5V. Is it gong to damage anything other than running the Ram hot?

thanks

Marty
12-03-2003, 03:37 AM
Well, the 3.3V rail may probably also feed CPU or DDR on some boards, but as there are vltage regulators with feedback, it may -only- increase power dissipation on the MOSFETs on mobo feeding CPU.

But the 12V rail is used to supply current in motors of hard disks or cd/dvd drives, so increasing the voltage may cause them to spin faster :up: