My friend has a PC which started off as just XP. After a few years, it started locking up repeatedly - seemingly at random.
I reinstalled Windows & made it dual-boot with VL6 (LILO to the MBR), with VL there as a backup in case Windows ever got in a mess.
It worked fine for several months then started locking up again. So, I told her to start selecting VL instead (at the LILO boot menu). To my surprise, the lockups continued as before.
More and more, they seemed to occur at boot time, so I thought it must be a corrupt MBR. I rewrote the MBR several times, but that didn't fix it.
Finally, it got so bad that, a lot of the time, a reboot didn't even bring up a LILO menu. So, I put a VL6 Light Live DVD in the DVD drive and got her to use that.
It STILL intermittently locks up !
- its nothing to do with the MBR (VL Light doesn't need the MBR)
- its not the hard disk (I ran a test on this and its 100% clean )
- its not faulty DRAM (I ran extensive tests and no probs found at all)
so what could it be and how can I narrow it down further ?