Hey guys, yesterday (during the fresher's party of all things) my computer started locking up randomly, normally after 10 or 15 minutes.
Checked voltage levels this morning and the 3.3V line was up to 3.46V. It's a Chieftec PSU,which up until now hasn't shown any sort of fluctuations on that line. The +12V line is a little low, at 11.92V but has been a little low all along. The real blatant clue that it might be the PSU is that the CPU voltage hasn't been very stable. MBM caught it at 1.62V (stock 1.6V JIUHB), which while not enough to do any harm on it's own, is a real smoking gun that the PSU might be dying.
No, I don't have any mates I can borrow a spare PSU off and I'm in no position to buy myself a new PSU to test it out.
Specs:
AXP 1700+ JIUHB,1.6V, at stock. Hanging at about 30C with the side of the case off at the mo.
Chieftec Scorpio tower case
Chieftec 300W PSU.
Abit AT7, KT333 mobo
1 HDD, 1 CDRW, 1 DVD
5 case fans, 80mm fan over CPU
1 PCI NIC.
Help? Please?


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Made any sw or hw changes recently? There is sometimes a setting on the mobo or in the BIOS which allows you to overvolt the 3.3v rail to 3.45v IIRC, worth checking. As for the voltages you report they don't seem to bad, a 2.60v CPU (JIUHB is 1.50v?) is fine running between 2.55v and 2.65v, some fluctuation is perfectly normal. 12v should be fine at 11.92v, there is always some variation in the spec anyway.
300W is cutting it a little fine in today's systems, esp if you run 5 case fans .... what are you running? You can try unplugging as much as possible just to see if you can alleviate some of the strain on the PSU. Unfortunately most of what you need to do is try your parts (1 at a time) in a known working PC (or their parts in yours) in order to find the problem part(s).
