Member Avatar for wizadorah

Hi to you all, i hope someone can help ive got a iQon Intel Celeron desktop pc, with 512mb RAM. 160gb Hard Drive running on windows xp. ive switched it on and the monitor wont work apart from the power light blinking green, i tried a different monitor and that had the same results so im assuming it has something to do with the hardware, i also noticed that when i switch the pc on i can hear it start up but no lights are on on the keyborad. or mouse, Please help :cry:

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Short expert summary and an actionable troubleshooting plan based on the thread: reports a PC that powers fans but gives no usable display and the keyboard never shows lights; a new video card did not change the behavior and the system previously froze during BIOS hardware enumeration. That combination usually points to something between the power supply, the motherboard/BIOS, and basic peripheral power — not the Windows install.

Try these steps in order and report exact results (voltage readings, beep codes, LED behavior):

  • Remove all nonessential devices (drives, USB devices, extra cards). Boot with only PSU, CPU, one RAM stick, and video.
  • Reseat RAM and try one stick at a time in each slot. Swap with known-good RAM if available.
  • Check power: confirm the PSU gives correct rails (including the standby 5VSB). If unsure, try a known-good PSU rather than relying on the paperclip test.
  • Reset CMOS (remove the coin cell or use the clear-jumper) and then retry boot.
  • Fit a small chassis speaker to the motherboard speaker header so POST beeps can be heard; note any beep patterns and consult the board manual.
  • Visually inspect the board for bulging/leaking caps, burn marks, or damaged connectors.

Safety notes and next steps: always unplug and discharge capacitors before working inside, and use anti-static precautions. If PSU voltages are good and there are still no POST beeps after the minimal-boot test, the motherboard or CPU is the likely culprit. was correct to suspect the PSU and ’s warning about low-level hardware troubleshooting is apt — get hands-on help if uncomfortable.

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Member Avatar for nizzy1115

It is likely your power supply went out. If you have a spare, switch it out and see if it works. If it still does the same thing, it could mean you have a dead processor, or motherboard. But start by testing the power supply.

Member Avatar for wizadorah

Thanks for you quick reply, well i managed some how to boot up my pc with a bootable cd, but before it got to the windows desktop it displayed the following, verifying DMI pool data and thats where it stayed nothing else happened, so i decided to format it which went fine windows xp loaded fine but then yesterday the same thing happed but this time i was playing a game when monitor turned off and green light started flashing. i hope i didnt make things worse by formatting it :rolleyes:

Member Avatar for DMR

That error is indicative of a hardware problem, but you'll have to do some troubleshooting to determine the exact culprit. The links on the first page of this Google search will give you several suggestions; try them and let us know the results.

Member Avatar for wizadorah

Thanks for the links i shall have a quick look before bed!! :eek: i will let you no how i get on
Thanks again

Member Avatar for DMR

OK- repost when you can; we'll be here...

Member Avatar for wizadorah

:cry: Hello all, im back and still trying to resolve my computer problems, i decided to buy a new graphics card to see if this was the problem but no its made no difference, the one thing i have noticed is when i turn my computer on i can hear the fans the power light is on but the keyboard don't seem to be working and there are no beeps when switching on. Any other ideas on what i could try next would be great.
Thank You.

Member Avatar for DMR

Any other ideas on what i could try next would be great.

The pages in the Google search link in my last post have many troubleshooting suggestions; please try as many of those as possible and let us know the full, exact, and detailed results.

A word of advice before you dive in, though:
Be aware that the DMI Pool error is (with the exception of corrupted boot files) indicative of a low-level hardware problem, and the error itself is generated by the BIOS, not by the operating system software. This means that unless you are comfortable with and familiar with troubleshooting at a hardware/BIOS level, your safest bet would be to get someone qualified/experienced to help you out. It's easy to overlook something as simple as a broken pin on a data cable's connnector; and just as easy to make a (wrong) change in the BIOS which makes matters worse.

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