Member Avatar for soldier1357

hi,
i recently had the motherboard and processor replaced in my computer due to the previous components burning out, i took it to the computer shop where they installed a new processor and a new motherboard of good quality, i have kept the same graphics card even though it is damaged from the overheating, mainly because of i havent enough money at the moment to spend another 200 on a new card after spending £300 on the mobo and cpu. anyway after all of this the computer ran ok for a while except for random errors or restarts because of the display adapter being damaged i didnt think anything of it as i was getting a new one in about a week or 2 anyway well yesterday i was on it just patching some games the temparature was at a safe level (30 degrees for cpu and about 50 for the gpu) i was monitoring them both with software, suddenly a power cut by myself accidentaly flicking the switch with my foot, i eventually got it started again (when it turns off suddenly it comes up with check sum errors or bios errors and recovery errors, but it also does this most of the time i restart it also goes into some old graphics mode because of the damaged card) then again another electrical shortage due to my step dad messing around with his cement mixer or something anywya it tripped the electric only in my room unfortunately, i got it working again after about 20 minutes then again the electric switched off due to the meter running out :( and now after all of that happening with in 30 minutes im left with a computer that turns on revs up but doesnt beep or show any signs of life apart from being on and the fans revving. your help would be very much appreciated i have come to terms with the fact that there willbe no quick fix solution and i will end up paying out again after only a couple of weeks.

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  • Latest Post Latest Post by finito

Dani AI

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The timeline described by — recent motherboard/CPU swap, a known overheating-damaged GPU, then two quick power outages — makes a power-rail or hardware-failure the most likely cause of “fans spin but no beep, no video.” ’s isolation idea is sound; the notes below expand the diagnostic focus without repeating the exact component-stripping steps.

Start with quick, low-cost checks that isolation alone can miss. Confirm a POST speaker or motherboard debug LEDs are present (many boards are silent without a speaker). Visually inspect the board for burnt marks, darkened traces, or bulging/leaking capacitors. Verify the main 24-pin ATX and the 4/8-pin CPU power plugs are fully seated. Clear CMOS (coin cell out for a few minutes or use the CMOS jumper) to eliminate a corrupted BIOS setting after sudden power loss.

Next, treat the PSU as the prime suspect after multiple outages. Measure +12V, +5V and +3.3V with a multimeter or an inexpensive PSU-tester, or swap in a known-good PSU for a quick confirmation. If rails are good, try video alternatives: onboard VGA/HDMI (if the board has it) or a known-good discrete card. Also check the CPU socket area for bent pins and that the cooler is mounted correctly — severe socket/CPU issues can produce a dead-POST symptom without a beep.

If bench testing with known-good PSU/GPU still yields no POST or code LEDs, a shop swap test is the safest next step. Given the surge history, document any shop findings and retain receipts/warranty info. A basic UPS or good surge protector is a sensible preventive measure going forward.

Member Avatar for finito

Well, Intel has a 3years warranty nowadays.

I want you to strip the PC bare only Mother board and processor and try to boot it.

No USB, Cds, Ram, Graphics card, etc.

You want to listen for 3 or 4 consecutive beeps.

If you hear them then your motherboard and Processor are fine.

No add your Ram w/o your Graphics card. You want one single beep.

This confirms your PC is fine.

Now Put your peripherals in one by one and boot everytime listening for the beep.

When you don't hear the beep you have found the culprit.

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