Member Avatar for donalkk

and i thought the blue one was bad
hi im new to the forum and this is my first time ever needing to post a pc repair question my computer powers on but there are no beeps and no signal comes up on the my initial thought was graphics card so I replaced that and nothing changed still the same problem so I reset the bios by removing the battery for ten minutes still nothing happen when I powered it back on. Then I thought cpu so I removed it but that gust gave different symptoms so I inserted it again. Then I realised that the cdrom light was not on so I cheeked the power supply and the readings were 4.8 when it should be 5 and 11.7 when it should be 12 is this enough to cause the problem
also shouldn’t the dvd burner be powered ie able to open if the power supply was correct? Any help would be grately appreciated as I feel like giving it the bin at this stage

  • 2 Contributors
  • 3 Replies
  • 112 Views
  • 1 Day Discussion Span
  • Latest Post Latest Post by sittas87

Dani AI

Generated

has already done the sensible basic swaps and BIOS reset, so the next move is to prove or rule out the power supply and motherboard before throwing more parts at it. Intermittent or low rails can prevent the system from POSTing and from powering drives or front-panel lights, so focus on verifying stable 12V/5V/3.3V under load and on removing anything that could short the board.

Start with a minimal bench test: remove the board from the case, fit only CPU (with cooler), one known-good RAM stick in the recommended slot, the 24-pin and CPU 4/8‑pin power connectors, and a monitor on the integrated or tested GPU. Attach a motherboard speaker or a POST card. Try to boot with a known-good PSU first; if unavailable, use a proper PSU tester rather than relying on the paperclip trick. Check visually for bulging/leaking capacitors, burn marks, or a blown onboard fuse and smell for burnt components.

’s suggestion to test the hard drive in another machine is useful for data and filesystem checks, but it won’t diagnose a no‑POST situation — drives don’t need to be functional for a motherboard to beep or show POST. If the bench test with a verified PSU still yields nothing, inspect the CPU/socket for bent pins, re-seat the CPU and cooler, confirm the front‑panel power switch wiring, and try another single RAM stick in alternate slots. If none of that helps, swapping in a known-good motherboard or having a shop run a POST-card or professional PSU load test is the practical next step.

Avoid guessing: document each change, test one variable at a time, and don’t run a suspect PSU on other machines without isolating it first.

Recommended Answers

All 3 Replies

Member Avatar for sittas87

Hey there
Unplug the dvd drive and see if you can bring your pc up.also did you try swapping out your ram sticks
????

Member Avatar for donalkk

yes tried all sorts of combinations swaping the ram around just using too sticks ect. with and without all the cards\drives
to make matters worse it wasn't me who broke it so i dont evan know what caused the problem :@

Member Avatar for sittas87

plug the hard drive in another machine as a secondary drive and do a chkdsk f/.see how it behaves afterwords.

Be a part of the DaniWeb community

We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.