Member Avatar for Jessica09

Hi, Im new here., and i'm not really a pro when it comes to hardware problems. So I really really need help.
I have a computer, Windows XP, the first problem i encoutered was my computer keeps shutting down without any warning, no bluescree/blackscreen, It just shut down unexpectedly. I have a hard time turning my PC again, It tooks how many press to Power Button until It works again but what i noticed is my keyboard and mouse is not working anymore, It stuck.
I tried to restart it by using reset button and run in Safe mode. And mouse and keyboard is working fine. But theres a pop error. I attached the image of that error.
Please Help me. I dont know what to do.

error.jpg 40.21 KB
Edited by Jessica09 because: my attached file is not working
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Good catches by . Based on what you observed, fix power and cooling before chasing software. A PSU whose fan does not spin is failing and can take other parts with it. Do not open the PSU; just replace it. For an XP-era system, match connectors and ratings on the label of your current unit: 20- or 24‑pin ATX, 4‑pin CPU, and a solid +12V rail (roughly 15–20A is typical). A decent 300–400W ATX unit is usually plenty for non-gaming hardware.

Confirm whether the CPU fan or the motherboard header is at fault. Move the CPU fan plug to another 3‑/4‑pin header to see if it spins. If it does, the CPU_FAN header may be bad. You can power the fan from another header or a Molex adapter, but keep the tach wire on CPU_FAN so BIOS can read RPM and warn on failure.

Once power is stable, rebuild XP’s USB stack to address the keyboard/mouse issue that only showed up outside Safe Mode:

  1. Boot Safe Mode.
  2. Open Device Manager.
devmgmt.msc
  1. Expand Universal Serial Bus controllers. Uninstall every USB Root Hub and Host Controller, then reboot so Windows reinstalls them.
  2. (Optional) Remove ghosted devices:
cmd
set devmgr_show_nonpresent_devices=1
start devmgmt.msc

In Device Manager: View -> Show hidden devices, then remove grayed-out entries under Keyboards, Mice, and USB.

Also enable USB Legacy Support in BIOS so a USB keyboard works before Windows loads. Since moving to different ports helped, prefer the rear motherboard ports and inspect the front‑panel USB header cable for bent pins or a reversed plug.

After the unexpected power-offs, run a disk check to repair any damage:

chkdsk c: /r

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Member Avatar for CimmerianX

1) that pop up in safe mode is 100% normal. Its simply telling you 'you are in safe mode'.

2) A machine that powers off for no reason is usually indicative of a heat issue or power supply issue. I would get a can of air for a few bucks, open up the system and blow out all the dust in the fans, vents, and powersupply then retest. A faulty power supply can be swapped with another, matching power supply as a test. More serious issues can be cpu overheating, components coming loose form the board....

3) if mouse/kbd work in safe mode, but not normal mode, then do this. Run msconfig.... in this window you can disable startup items from launching in normal mode. Disable everything, then start normally. IF it works, then some program is breaking your usb/mouse/kbd. Start enabling items one by one, reboot and testing each step. Eventually, you'll find your culprit.

Member Avatar for Jessica09

Thank you , Here's what iv'e noticed after i check my system unit, i turn on my computer again and it works this time, but i saw that the Fan of my power supply is not working, and the CPU fan stop working suddenly, so my computer shutdown again. Do i need to replace my Power supply now? or theres a way to fix it. Ive research and they all said that it needs to be replace. :(
--My mouse and keyboard is working fine now, after i transfer it to another USB port.

Member Avatar for CimmerianX

IF the CPU fan isn't turning, just change that fan. Also, some MBs shut down the fans based on temp.... in BIOS there may be a setting to have fan run all the time.

Depending on your CPU and cooling, the fans are usually very simple to swap. THe Fan is usually screwed onto the heat sync on top of the cpu. a lever will typically hold the heat sync in place on top of the CPU. pop the heat sync off, unscrew the fan and unplug it from the board. Buy the exact replacement from amazon or monoprice or anywhere. Get some new heat sync compound too. Screw fan to heat sync, apply compound between cpu and heatsync, secure heatsync back on, and plug in the fan to the board.

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