Won't boot, I think I broke it.

[bubford]

I have a 1.5+- year old Celeron 466 13.6gig 64mb pc100 MVP VIA motherboard with onboard SiS 620 graphics. It has been working very well until I played with the system bus speed. First, I changed it from 66mz to 100mz which increased my processor speed to 525mz and seemed to work fine. I guess I got greedy and I then increased the bus speed to 124mz, nothing has worked since then. I have lost video totally and the harddrive runs for only 2 seconds after turning computer on, followed by the cd-rw blinking a couple of times then nothing, except for the cooling fans running. It dislpays absolutely nothing at any time on the monitor. I then cannot re-boot or even turn the computer off with the buttons on the front, have to switch it off in the back. I took the cmos battery out and unplugged the computer, hoping my bios settings would reset to the default settings and then I could put things back to normal. It didn't work. Did I burn up my cpu by turning up the system bus speed so high? Is there any way I could check that, short of buying a new cpu? Any help would be greatly appreciatd.

[Randy_tx]

Boot the system and hit DEL key until system goes into Bios Setup...Go to the CPU settings in bios and return them to 66mhz or change the motherboard jumpers back to 66 mhz. You probably didnt damage the cpu, but you might have crapped out the video card...they usually cant handle that fast a bus speed (newer mobo's have a bus step down for vid)!! If previous doesnt work, put a PCI video card in puter and boot it with monitor on the installed card (not the onboard one).Hopefully using DEFAULT Bios settings you will be able to post this system up.

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Os2 wasn't a bad idea...

[Randy_tx]

By the way.......overclocking takes a good deal of homework prior to taking on....the best source for this type of activity is Tom's Hardware Guide at http://tomshardware.com . He goes into all of the do's and don'ts of overclocking a cpu. The Celeron 466 is not one of his favorites. The MAIN problem is HEAT.......ya gotta have a VERY good cooling fan to overclock a Celeron.....or ya gotta leave the covers off the puter or both!

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Os2 wasn't a bad idea...

[rito98]

Randy, I can't help but notice some of your messages, if not all of them, have a dotted lined and beneath the message "OS2 is not a bad idea." Are you an OS/2 WARP (V4) user and do you have any knowledged of the eCS?

Originally posted by Randy_tx:
Boot the system and hit DEL key until system goes into Bios Setup...Go to the CPU settings in bios and return them to 66mhz or change the motherboard jumpers back to 66 mhz. You probably didnt damage the cpu, but you might have crapped out the video card...they usually cant handle that fast a bus speed (newer mobo's have a bus step down for vid)!! If previous doesnt work, put a PCI video card in puter and boot it with monitor on the installed card (not the onboard one).Hopefully using DEFAULT Bios settings you will be able to post this system up.