PSU on the fritz?

[MmmSkyscraper]

I've had some random shutdown problems with Q3 and D3 in the past, but they were only occasional so wrote it off as a driver issue. Having installed HL2, it's happening every couple of minutes. Tried updating everything I could think of but no joy. It's also shutdown when I've been in the BIOS! Now every time I restart the machine (be it through the BIOS or Windows), it shuts down instead. I have to switch the PSU off, unplug and switch on again after 60 seconds or so... That unplug routine has to be used every time it decides to switch itself off too.

I'm thinking the PSU is on its way out. Voltages are stable in BIOS and Windows, haven't seen what they're doing when games are running. The Tagan is supposed to be rated for 28A on the 12v, so should be plenty for the A64? If I leave the machine running overnight, e.g. BOINC or Steam downloads, or use it for non-games stuff then it's fine. I did a memtest86 pass today and that was fine.

Machine spec:

A64 3200 (no overclock)
Zalman 7000 cooler
MSI K8 Neo (BIOS v1.4, nforce drivers v5.1)
1GB (2 x 512MB Corsair Value Select, PC3200, 1T, everything else auto)
Galaxy 6800 (tried latest offical driver and beta)
Seagate 200GB SATA

Voltages:

CPU: 1.5v
AGP: 2.6v
MEM: 1.6v (I think MEM and AGP are that, else it's vice versa, can't remember)

3.3v: 3.38v
5v: 5.11v
12v: 11.91v

Can anybody confirm my suspicions and if so, any recommendations for a replacement? If I've missed anything out, let me know.

Thanks.

 

[MmmSkyscraper]

ttt

 

[Blazer]

tahe out that TAGAN and smash it whit a hammer.

OR you could start saving for another computer!!!!!!!!!!

 

[beltani]

I was getting random reboots with D3, and I tried everything to no avail - only later did I discover that my PSU had fried my motherboard. Random reboots, in my experience, are usually a heat / power / ram issue. If your memory is fine, check your case / CPU temps. Whatever the problem ends up being, though, i'd buy a new power supply anyway.

 

[MmmSkyscraper]

I got my friend's Zalman 400W plugged into it atm. Managed about 20 minutes in HL2 before I quit and 100 frags in Q3 with maximum # of bots (that crashed after 2 minutes with the Tagan). It just rebooted when I renamed a file, guess that rules the PSU out.

 

[MmmSkyscraper]

Finally fixed this problem! Turned out to be something wrong with the keyboard, the connector maybe. I guess that's the cheapest and easiest component to replace...

If anyone's got a machine that's randomly rebooting or restarting, for sanity's sake try swapping your kb/mouse. It sounds stupid but could save you a whole lot of hassle.