This in a response to a PM, your box is full bushman31. Original PM in quotes, my response is not.
Quote:
buschman31 wrote on 03-22-2005 01:15 PM:
have a ? for u. How do u resett the mobo on a optiplex? and also the system has a slot 1 cpu (400) and had swapped it out with a slot 500mhz. system would not boot. had a problem with the cpu in my other system. not sure if its the cpu or mobo. also the hdd still have the 2 partitions because i had installed windows xp on it. i had found this computer and had nothing but trouble installing xp on it. take a while but finally got it on there. let me know of any other fixes i can try.
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Its probably the CPU that is the culprit in trying to get up to the 500Mhz mark. The upgrade options on those Dells were very limited, I was only able to get mine to 400Mhz, as yours is now. Is the 500Mhz a PII or a PIII? A PII will most definately not work, differant voltages and a few other things.
There should be a jumper on the mobo to "clear CMOS", its somewhere, forget where exactly.
How big is the HD in question? Might help to troubleshoot