Member Avatar for yzelle

hi guys can you help me with my problem.. i have a problem on my computer everytime i turn on it.. its automatically shutdown.. i dont know what part of my pc are not function properly.. i already change my power supply and my hardisk but nothing happen.. guys can you suggest me to do in my pc??? tnx

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  • Latest Post Latest Post by cguan_77

Dani AI

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Problem recap and context: the system powers up, runs for about 30 seconds, then the PSU and processor lose power and the monitor drops to its blinking standby state. already swapped the power supply and hard disk. , and pointed toward cooling and repair checks; since the shutdown is fast and repeatable, the next steps should focus on isolating hardware and power/short protection rather than filesystem fixes.

Recommended troubleshooting sequence (minimal, methodical): bench the motherboard outside the case on a nonconductive surface with only essential parts installed — motherboard, CPU with its cooler, one known-good RAM stick, PSU, and either onboard video or no GPU. Ensure the main 24-pin ATX and the separate 4/8-pin CPU power lead are plugged directly into the board (no molex adapters). Fit a small case speaker or motherboard speaker header to capture POST beeps. If the system still dies at ~30 seconds, the fault is likely motherboard, CPU (rare), or the PSU/CPU-power connection; if it stays up, add one component at a time until the failure reproduces.

Other focused checks: visually inspect the motherboard for bulging or leaking capacitors, burnt components, or misplaced standoffs/screws that could short the board. Test each RAM stick in different slots and try booting with no RAM to elicit beep codes. Clear CMOS (battery removal or jumper) to rule out bad firmware settings. A basic PSU tester or multimeter will confirm rail voltages, but swapping in a known-good PSU is often the fastest definitive check.

Safety and next steps: always disconnect mains before touching components and follow anti-static precautions. If bench tests are inconclusive, professional diagnostics or swapping suspect parts into a known-good system will narrow the fault and determine whether repair or motherboard replacement is appropriate.

Recommended Answers

All 8 Replies

Member Avatar for freshfitz

Is the cpu fan working?

Member Avatar for caperjack

Hi, I would first boot to your windows cd and go to R for repait ,at the prompt type in" chkdsk /r" with out the quotes and there is a space between the K and /

Member Avatar for freshfitz

A bad disk wouldn't make a computer turn off

Member Avatar for caperjack

A bad disk wouldn't make a computer turn off

no! well a corrupt or damaged file system can in my opinion

Member Avatar for caperjack

no! well a corrupt or damaged file system can in my opinion

i take that back after rereading ,they actually changed hdd!sorry

Member Avatar for yzelle

Hi, I would first boot to your windows cd and go to R for repait ,at the prompt type in" chkdsk /r" with out the quotes and there is a space between the K and /

when i turn on my pc all the function are working after 30secs the power supply and processor automatically shutdown and my monitor light keep blinking..

Member Avatar for yzelle

when i turn on my pc all the function are working after 30secs the power supply and processor automatically shutdown and my monitor light keep blinking..

Member Avatar for cguan_77

is your processor heatsink seated properly?

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