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My dad's computer recently started to reboot it self I informed him that it was probably his 300 watt power supply unit getting ready to go seeing how the computer is 10 years old. Then we waited a couple of days and we put a used 250w power supply in and everything was running fine except for a grinding noise that start comming from the hard drive. I informed him that it seemed to only start when we put in the 250w psu in place of the 350w and that there might not be enough power to power all the component hence the grinding might be the platters spinning and de-spinning. Well like 2 days later it boots and says that it can't find the hard drive. so we go out and buy a 300w psu from compusa and put it in there and then go out and get a new hard drive.
We hook it all up and go to turn it on and we get nothing on the monitor. The keyboard lights don't flash during the boot up like the number lock or caps lock...etc. So we tried a different monitor and we got nothing still. So then we took out the video card and tried it in a different pc and on both monitors and it booted fine. We hooked up the new hard drive and it didnt detect it. (this is a old old computer old bios like from 1993 so i am not worried about that it's cmos battery is gone thats another story) So I put the video card in there and re-hook up the power supply and still no video to the monitor I notice that the nic had a like light. Is it possible that the agp slot is bad now or that part of the mobo went bad or that running it with 250w instead of 300w jack up the whole thing.
Also there are some beeps some times a total of like 12 it seems like its 8 (which usually means video card) then 3 (not sure what that means) and 3 more (not sure what that means also) So now i am wondering if it is his bios is or went bad or the cpu is dead?
any one have any ideas i am confused. also with the new psu in the computer that wont display a video the 2 cd-roms do open and close and get power as does the nic.
We hook it all up and go to turn it on and we get nothing on the monitor. The keyboard lights don't flash during the boot up like the number lock or caps lock...etc. So we tried a different monitor and we got nothing still. So then we took out the video card and tried it in a different pc and on both monitors and it booted fine. We hooked up the new hard drive and it didnt detect it. (this is a old old computer old bios like from 1993 so i am not worried about that it's cmos battery is gone thats another story) So I put the video card in there and re-hook up the power supply and still no video to the monitor I notice that the nic had a like light. Is it possible that the agp slot is bad now or that part of the mobo went bad or that running it with 250w instead of 300w jack up the whole thing.
Also there are some beeps some times a total of like 12 it seems like its 8 (which usually means video card) then 3 (not sure what that means) and 3 more (not sure what that means also) So now i am wondering if it is his bios is or went bad or the cpu is dead?
any one have any ideas i am confused. also with the new psu in the computer that wont display a video the 2 cd-roms do open and close and get power as does the nic.