Power supply failure or something else

[shig]

ok so i had my computer opened up power cord out of course.

i applied as5 to my cpu and gpu, attepting to clean it off with 70% Al.

all seemed well at first, booted fine was fine for a little bit, the the screen went blank, soo i rebooted it and it was fine agian..until i tried to acess the tempeture monitering function, then it rebooted, twice then i did that same thing, twice. then it powered on fro about a second and then off again a few times. then nothing.the power supply had funtion fine for 6 months. the power supply tester told me that the -5v rail was nonexistent. i had watched that that rail flucuated greatly while it was funcioning, but had ignored it like a noob. it s 370 watt enermax, but i had the following all running on it:
1 amd 3000+ winne @ 223 fsb 1.65v
2 WD 80gb sata 150 in raid 0
3 80mm case fans
1 memorex cd-rom
1 floppy

i had the same power supply before,and it failed, i thought that had faild for a differnt reason, because i had like a noob bumped up the frequncey on my agp bus to the max and got errors and failure that time, bu tthe same 6 months

whit these facts i think that i may have has too much running for a 370w power supply

 

[shig]

ok now im really confused...its working again...almost perfect... i can cant plug in all my cae fans or it turns off again....i dont wanna just ignore this, because all i did was replug in the 20 pin molex... anyone have any idea as to what happend?

this is my 5 volt rail according to speedfan:


diconserting

 

[jonnyGURU]

You mean that's the -5V, like how you were talking about the -5V in your first post?

-5V is going to report funky. Your power supply supplies it but your board doesn't use it. So funky readings are a given.