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Thread ID: 110376	2010-06-14 08:45:00	Randomly Rebooting Computer	bot (15449)	Press F1

Post ID	Timestamp	Content	User
1110209	2010-06-14 08:45:00	Hi all, My computer recently stopped working, so I decided to get a new motherboard. However, it keeps rebooting randomly. I have ruled out the power supply, because it worked fine with my old motherboard, and i have ruled out the OS (Windows XP SP3) because upon checking the event log, it didn't show any errors up until it randomly reboot. I have tried flashing the bios, but that produces an "File size does not match" error from the flashing program. I have looked in the bios to see if there is a "BIOS write protect enable option, but there isn't one. The motherboard is a MSI KM4M. I do not know if it is a -L or a -V. Helensun	bot (15449)
1110210	2010-06-14 08:48:00	Did you reinstall windows if the mobo is different to the old one?? You cant use a hdd on another mobo. It'll crash	Speedy Gonzales (78)
1110211	2010-06-14 09:17:00	"Randomly" is more likely to be hardware related, unfortunately checking the event log does not rule out the OS either. Assuming you have Antivirus and checked for Malware.... I would first run Memtest86+or similar for ram errors (eliminate Ram) Then if you have another HDD load a fresh OS on that and test, saves you having to install "everything" again if its not OS related. If you dont well bad luck start saving your data off for the re-install. Another possibility maybe your PSU is failing and took out your motherboard, or worse you mis-diagnosed MB fault.	Battleneter2 (9361)
1110212	2010-06-14 20:14:00	My computer recently stopped working, so I decided to get a new motherboard . However, it keeps rebooting randomly . I have ruled out the power supply, because it worked fine with my old motherboard, i have ruled out the OS (Windows XP SP3) Why did you buy a motherboard? The problem may not have even been that . The PSU may be fine on one older board and entirely unsuitable on another, newer one . Ditto the O/S, you generally have to do a complete new install because all the drivers are different .	pctek (84)
1110213	2010-06-14 23:13:00	I have ruled out the power supply, because it worked fine with my old motherboard Does "worked fine" mean "it turned on" ? Like PCTek said, it may work fine in another PC because the load is different . If there is a lower load on a marginal PSU it may be able to stay within specification and not cause problems . Add a higher load, suddenly it goes out of spec and you get issues . Ruling out the PSU would only be possible by load testing and checking the ripple and noise on the outputs and ensuring they were within specifications . I had a PSU which would seem to run one of my PCs for several hours but would randomly lock up too . Replaced it, problems solved . What is your PSU and how old is it? Also, forget updating BIOS for now, especially on a machine which randomly restarts . It may randomly restart while you update and ruin the board . The problem is not likely to be a BIOS problem anyway . Turn off automatic restart on system failure and see if you get a BSOD message .	Agent_24 (57)
1110214	2010-06-15 01:25:00	It's a Hyena 350W Power Supply.	bot (15449)
1110215	2010-06-15 01:33:00	Change the Power Supply - those makes are not exactly the best.	wainuitech (129)
1110216	2010-06-15 02:30:00	Change the Power Supply - those makes are not exactly the best. Yes it's likely that the PSU is causing your problems especially if it's a couple of years old. Hyenas don't use good quality capacitors and after a while they fail and aren't able to suppress ripple which results in an unstable PC.	Agent_24 (57)
1110217	2010-06-18 05:13:00	OK I reinstalled windows and that seems to have fixed the problem	bot (15449)
1110218	2010-06-18 05:21:00	Good to see that may have fixed the problem but that still won't change the fact that you have a Hyena PSU.	Agent_24 (57)
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