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3.3v

post #1 of 22
Thread Starter 
I booted my pc the other day, and got a bios alert that my voltage was low, I checked it and sure enough the 3.3v rail is putting out 2.3v. how can I change it, and what does this effect?

I can boot windows, and it seems like my optical drive is really weak, I know it's kinda vague, but I really don't know much about this. help.





ULTRA 550W X2-Connect//Asus Crosshair//AMD x2 4600//2gb DDR800//PNY 7950gt//2x 300gb WD SATA 300
post #2 of 22
Quote:
Originally Posted by beepbop9 View Post
I booted my pc the other day, and got a bios alert that my voltage was low, I checked it and sure enough the 3.3v rail is putting out 2.3v. how can I change it, and what does this effect?

I can boot windows, and it seems like my optical drive is really weak, I know it's kinda vague, but I really don't know much about this. help.





ULTRA 550W X2-Connect//Asus Crosshair//AMD x2 4600//2gb DDR800//PNY 7950gt//2x 300gb WD SATA 300
WOW.... 3.3v rail should never drift out of 4%. You were out of spec by 30%!!!! Replace the PSU.

The 3.3v rail affects memory and motherboard.
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post #3 of 22
I would see if you have any options for this kind of thing in the BIOS i have never looked,Also it effects the power that is given to your CPU and Ram,I would say that your PSU is going out,If you have a nother computer i would try hooking up it PSU and then checking the volts to see if they have changed.
    
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post #4 of 22
Quote:
Originally Posted by jonny1989 View Post
I would see if you have any options for this kind of thing in the BIOS i have never looked,Also it effects the power that is given to your CPU and Ram,I would say that your PSU is going out,If you have a nother computer i would try hooking up it PSU and then checking the volts to see if they have changed.
I believe CPU relies on only the 12v rail.
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post #5 of 22
Thread Starter 
thanks for the replies. any suggestions to a sub 70 buck replacement with some super long cables? I have a gigabyte aurora full tower... it's a monster
post #6 of 22
2 OP pls nerf
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2 OP pls nerf
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post #7 of 22
Quote:
Originally Posted by DuckieHo View Post
I believe CPU relies on only the 12v rail.
no! no! no!
the cpu relies on the 3.3v
the mainboard and memory rely on the 5v both positive and negative
the 12volt rail STRICTLY powers the hdd fans gpu optical drives ect etc
    
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post #8 of 22
Quote:
Originally Posted by beepbop9 View Post
thanks for the replies. any suggestions to a sub 70 buck replacement with some super long cables? I have a gigabyte aurora full tower... it's a monster
I have the aurora and I have never had any problems with cables not reaching

Dont worry about finding a PSU with long cables just look for the best you can get
    
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post #9 of 22
Quote:
Originally Posted by el mailman View Post
no! no! no!
the cpu relies on the 3.3v
the mainboard and memory rely on the 5v both positive and negative
the 12volt rail STRICTLY powers the hdd fans gpu optical drives ect etc
and you are wrong, the CPU runs off the 12v rail too
    
CPUMotherboardGraphicsRAM
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2x WD Raptors 36gb Raid 0 Lite On Sata DVD-RW Custom XP Pro Dual 22" Westys WS 
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post #10 of 22
the psu the pook lsted is very much worth the money it comes out to be more 70 with shipping included but its a great stable high efficency for the dollar psu!
a great buy!
    
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