I've been tidying up a load of old computer parts, and came to this bodged computer. Thought I'd have a quick look at it before throwing it out.
With a good PSU fitted, it wouldn't even power up. Turned out that the PCI USB 2.0 adaptor was at fault, removing it allowed it to start ok.
So it's possible that this too was swapped around by the rogue computer repair shop, as I was told the original fault was that the computer would crash or lock up after being used for a while, ie it WOULD start up ok.
I also found, upon running a memory test, that the PC133 memory was giving errors. Swapped out by shop as well? Or source of original problem? Who knows.
I put different memory in it, and left it running a memory test overnight.
In the morning it was still running well, except that the CPU was incredibly hot. It's an AMD Duron 1300, hardly high performance, and there was a reasonable heatsink fitted, which was clear of dust and the fan was spinning silently.
I put a larger heatsink and fan on, but this too got hot very quickly.
Using this very useful web site
http://www.cpu-upgrade.com/ I found the fastest CPU the board could take (AMD Athlon XP 2800+) and got one off ebay for less than £5.
Set it all up, installed XP on it, all working quite well and despite having a CPU of twice the performance of the original, running a lot cooler too. It only has 512Mb of RAM though, so ordered 1Gb of SD133 from ebay (which hasn't arrived yet). 1Gb being the maximum this board will support, in 2 x 512Mb.
Quite pleased that I'd made a handly little "spare" machine with tolerable performance - handy to loan someone, test something on or for emergency shed cam use if the laptop server machine dies
But after a few more days of leaving it burning in and occasionally logging in through Terminal Services, it's started blue screening, with the classic irql_not_less_or_equal error.
In my experience this is usually caused by a failing PSU or faulty hardware.
I've tried a different PSU, but still have the same result.
There's no obvious damage or failure on the motherboard (ie the capacitors don't seem to be bulging or leaking) so, unless someone here has a good idea, it'll sadly go to the recycling depot (formerly "the tip") and I'll be left with a spare AMD Athlon 2800+ CPU and 1Gb PC133 Ram (if/when it arrives).
The motherboard is a PC-Chips M810L , which from a bit of Googling reveals itself to be a bit cheap and nasty and unreliable and... prone to irql_not_less_or_equal faults when you install Windows XP!
Hey ho.
Ian