Solve : computer boots for a min then shuts down?

1.	Solve : computer boots for a min then shuts down?
Answer» Hey guys, older computer, wasnt booting, so i replaced power supply, now it starts to boot up, but it says nothing detected on master 0, so i replaced ide cable to hard drive, still same thing boots, says no devices, and shuts down. Any ideas???can you check the bios an see's if it sees's it? Also, a name an model would help.in the bios, it sees the hard drive, as for model, there isnt one, its an older, generic computer.There is an Operating System installed? How do you mean? yep, has windows xp Boot XP CD. Use recovery console. fixmbr fixboot exit hmm ok, ive tried a couple times, but computer still just shuts down, about 30 seconds in see if you cant boot from the xp disk an see if it dont see the harddrive. If it does attempt to repair it. If that done work try changeing the cd an harddrive ide cables, this wont hurt anything just changes which will boot first an if it doesnt its something else. Quote from: mdoggy39 on July 30, 2010, 02:17:45 PM hmm ok, ive tried a couple times, but computer still just shuts down, about 30 seconds in Do you mean 30 seconds from the time you power up, or 30 seconds from the time me it clears the display and tries to boo windows? Quote from: Slade on July 30, 2010, 02:28:41 PM see if you cant boot from the xp disk an see if it dont see the harddrive. If it does attempt to repair it. If that done work try changeing the cd an harddrive ide cables, this wont hurt anything just changes which will boot first an if it doesnt its something else. Do me a favor. Don't try to help anyone.lol, allen. It lasts about 30 sec, from the time i push power button, i have changed out, power supply, hard drive, cd rom, ram, and vid card, about the only thing left i can think of is to remove heatsink and reapply thermal paste. Any other ideas i can try??? thanks for the help so far everyone. Quote about the only thing left i can think of is to remove heatsink and reapply thermal paste You said it. Shut down after 30 seconds from power on is classical of improper heat sink operation. Often it is a stuck FAN, not the thermal paste. Check it out.hey, yeah the fan is good, runs well the whole time, till comp shuts down, i have to get some paste and try that, the only thing i can think of to try now.In addition to the CPU, there are other HARDWARE items that can overheat withing 30 seconds. But kind of rare, Other components take several minutes.But exceptions do happen. Power supply components. RAM sticks. Dives, HDD, CD or floppy. USB device. And or COURSE, the graphics card and its fan. As a diagnostic, strip the PC bare down to just motherboard, reliable RAM and simple VIDEO device. See how long will stay in the BIOS screen. Monitor the temperature, if it has that feature. If the CPU has normal temp, then it is not the heat sink. hey thanks, i have already done that, and switched out everything.

Answer»

Hey guys, older computer, wasnt booting, so i replaced power supply, now it starts to boot up, but it says nothing detected on master 0, so i replaced ide cable to hard drive, still same thing boots, says no devices, and shuts down.
Any ideas???can you check the bios an see's if it sees's it? Also, a name an model would help.in the bios, it sees the hard drive, as for model, there isnt one, its an older, generic computer.There is an Operating System installed? How do you mean? yep, has windows xp
Boot XP CD.
Use recovery console.
fixmbr
fixboot
exit

hmm ok, ive tried a couple times, but computer still just shuts down, about 30 seconds in
see if you cant boot from the xp disk an see if it dont see the harddrive. If it does attempt to repair it. If that done work try changeing the cd an harddrive ide cables, this wont hurt anything just changes which will boot first an if it doesnt its something else. Quote from: mdoggy39 on July 30, 2010, 02:17:45 PM

hmm ok, ive tried a couple times, but computer still just shuts down, about 30 seconds in

Do you mean 30 seconds from the time you power up, or 30 seconds from the time me it clears the display and tries to boo windows? Quote from: Slade on July 30, 2010, 02:28:41 PM

see if you cant boot from the xp disk an see if it dont see the harddrive. If it does attempt to repair it. If that done work try changeing the cd an harddrive ide cables, this wont hurt anything just changes which will boot first an if it doesnt its something else.

Do me a favor. Don't try to help anyone.lol, allen.
It lasts about 30 sec, from the time i push power button, i have changed out, power supply, hard drive, cd rom, ram, and vid card, about the only thing left i can think of is to remove heatsink and reapply thermal paste. Any other ideas i can try???
thanks for the help so far everyone. Quote

about the only thing left i can think of is to remove heatsink and reapply thermal paste

You said it.
Shut down after 30 seconds from power on is classical of improper heat sink operation. Often it is a stuck FAN, not the thermal paste. Check it out.hey, yeah the fan is good, runs well the whole time, till comp shuts down, i have to get some paste and try that, the only thing i can think of to try now.In addition to the CPU, there are other HARDWARE items that can overheat withing 30 seconds. But kind of rare, Other components take several minutes.But exceptions do happen.

Power supply components.
RAM sticks.
Dives, HDD, CD or floppy.
USB device.

And or COURSE, the graphics card and its fan.

As a diagnostic, strip the PC bare down to just motherboard, reliable RAM and simple VIDEO device. See how long will stay in the BIOS screen. Monitor the temperature, if it has that feature. If the CPU has normal temp, then it is not the heat sink.
hey thanks, i have already done that, and switched out everything.

Solve : computer boots for a min then shuts down?

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