Datun Walnut

Hi, I'm being driven mad by a locking up problem on a Fujitsu XP home laptop. After about 5 minutes use it locks up with no HDD activity BUT the cursor is still moving around the screen. ctrl-alt-delete doesn't work and sometimes you get that 'buffer full' beeping if you move the cursor. I don't think it's temperature as Everest shows it to be operating at 40 deg C. Nevertheless, I have cleaned the heatsinks and fan. I can't get it to lock up in safe mode, so I disabled all the start up stuff and services in msconfig. It still locks up. Any ideas what I can try next? Thanks in advance DW

Hi Guys, I've just joined and hope I can contribute a lot but in the meantime I have a problem: Background I've been asked to repair a XP laptop that keeps shutting down. From cold it will get to the desktop before closing itself down. after that it never gets as far as windows before crashing. I opened it up and found that the fan is not turning - though it is free to turn. the heatsink fins where fluffed up and the heatsink seemed to be loose on the CPU. I've cleaned, re-pasted and reseated the heatsink and am now awaiting the delivery of a new fan. (though frankly I've no idea if the fan is faulty or the mobo powering it). The problem is that the graphics is very weird. when booting, the xp logo on the black background goes green and sometimes is completely unreadable. Do you think the mobo has been cooked to death? I've tried keeping the cpu cool with spray but it makes no difference. The Laptop is a Clevo style note. (I know, I'd never heard of them either) and therefore would be a write off as I can't source a new mobo. Regards DW