I've been working on this computer for years now, and recently I've been having more trouble then usual. I'm probably going to chuck this sytem soon for a system a friend might give me [this system is too old/slow for today's games anyway], but I'd like to give this one last try. It could still make a decent backup system. Maybe you guys can help give me some ideas.
First, I'm going to list the parts that I have, and can switch:
2 x [AMD Thunderbird 1100MHz K7 Socket A]
[MSI-6389] ; [MSI-6330 KT7Pro] ; [MSI-6340]
3 x [300w PSU]
3 x [256MB PC133 SDRAM]
[GeForce 2 MX 400/400 64MB] ; [GeForce 2 Ti 64MB DDR]
[Western Dig. 30GB HDD 7200RPM] ; [Western Dig. 15GB HDD ?RPM]
[all setups using Win2k, all updates, service pack 4, latest video drivers for both cards, DirectX9.0c, via 4in1 installed]
That should be enough. The problem started with this setup:
MSI-6389, 256MB SDRAM, GeForce 2 Ti.
It worked fine for a while, but last year the sound would mysteriously turn off, and the system would lag real bad afterward. I turned the sound off in the bios, and it worked fine after that. I put a cheap sound card in it, and got the same problems again. Took it out, and just didn't use the sound.
Then the graphics started to go. I started getting very fractured graphics, and weird glitches. Then, in November, the system just wouldn't power up.
So, this is when I bought the MSI-6340. I had to turn off the AGP 1WS Read/Write in the bios to get the video to work properly, but after that, everything worked great. Smooth games, normal lag, I was happy. I got cable internet a couple weeks later, and the sh*t hit the fan. I installed an old NIC I had from before I replaced the MB, and the system wouldn't power up.
I remove the NIC, and when I power up again, my CPU fan isn't working. So, I replace the CPU fan, and the NIC, and now my system is having very similar problems that I had with the MSI-6389. I also bought the KT7Pro at this time thinking the old NIC may have damaged the MB.
I've redone all the software, but it doesn't change anything. I've used multiple variations of the hardware above with no change. I've tested all three PSU's, and all are fine. I stripped the system down to bare necessities (CPU/FAN/MB, 1HDD, 1SDRAM, GF Ti, turned off on-board sound), to see if maybe the PSU wasn't powerful enough, but that doesn't change anything either.
Games I test this with:
KOTOR - Main screen/gameplay runs extremely slow. Frequently pauses, occasionally locks up the system.
Kill.Switch - Main menu graphics are so distorted the options don't show up. This was originally fixed with disabling the AGP 1WS Read/Write, but now that does nothing.
Homeworld/Cataclysm - Just runs real slow.
Even Flash/Shockwave games run slow.
I also tested all memory with memtest86. DxDiag shows no problems, and all tests run fine. No Spyware/Adware/Malware.
Any thoughts appreciated. I'll pretty much try anything at this point.