I replaced the last power supply, the small round battery and the latest ram and put in a small fan below the power supply myself. I had a shop put in the motherboard and chipset. And I'm still wary of replacing the heatsink, more now because of dealing with the paste.
The original computer was put together at a shop in September 2001 and has changed a lot including the case. Of the components below, only the video card is original.
Motherboard: Intel D865PERL
Chipset: Intel 865
Ram: Kingston dual 512MB (1GB total)
Power supply: Sparkle FSP550-60PLG
Video card: Matrox G-550
The hard drives I switch among are mostly Maxtor and Western Digital, plus one Seagate 200GB and one Hitachi 250GB that, like many of my other drives, corrupt often. All the drives are formatted NTFS except for one WD 60GB and three WD 100GB that I've had since 2001, that are formatted FAT32 and have not corrupted--but are very seldom used.
The two most recent system drives, a 60GB Maxtor and an 80GB Western Digital, don't seem to have the problems of the other drives, which I put to being used as system drives, but maybe it has something to do with the size. The corrupted drives are 120GB, 160GB, 200GB and 250GB. I used to use 4-5 drives at a time, but the corruption has continued when using even a single source drive plus the system drive.
I never thought the heatsink was the problem, but I'm willing to try pretty much anything that isn't too expensive. (That's not the fan I think should blow outward, it's the new one under the power supply.) The Protonic tech also suggested switching to a SCSI RAID, but it's too expensive an experiment. I'd experiment with buying a new computer before that.
The constant corrupting began in April 2004 after getting a new power supply that I've since replaced twice--and before getting the new motherboard. When the shop owner put in the motherboard, he couldn't get all five drives and the DVD writer (Pioneer 104) to work at the same time. I think that might mean a problem with the drive files--or a problem with the motherboard.
On the other hand, sometimes drives aren't recognized by the BIOS when they should be and I don't think the files could do that. The system drive isn't recognized when it's paired with some other drives. What could cause that?
I have three ideas:
1. Get Spinrite. I've read conflicting things about whether Spinrite "repairs" corrupted drives or keeps working drives from getting corrupted--or is just a lot of trouble that ties up the computer for days or weeks doing whatever it does to a single drive. It does have a 30 day money back guarantee but seems like a huge hassle.
2. Bring my hard drives with my source material to a shop, work on it there to see if the drives fail and, if they do, have the shop owner try to see why--or hopefully finish the project there, if I can.
3. Buy a new computer and hope for the best. Then I'd have to decide what to buy. Fry's has a Celeron with Windows XP Home for $200 today (cheaper than a SCSI drive), but I'd probably need something more powerful.