Member Avatar for mammaskittlez

I am attempting to fix my brothers computer due to a couple of trojans. However; when i turn on the computer it beeps at me and i get no signal on the monitor. Can someone please help me. I have done this before for others but this is the first time i have had the computer not come all the way on and just sit there and beep.

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Quick follow-up that complements what found and what suggested. On many Dell desktops the POST pattern one–three–two (1-3-2) is specifically a memory-related symptom — the official Dell beep-code reference is the clearest place to confirm that mapping. Dell: Understanding beep codes on a Dell desktop PC. (dell.com)

A short, prioritized checklist for confirming and isolating a memory fault (reasonable next steps beyond checking seating):

  1. Run the built-in Dell preboot diagnostics (F12 at the Dell logo, choose Diagnostics) to get error IDs before replacing parts. How to run Dell diagnostics (F12 / ePSA).
  2. Boot a memory tester from USB (MemTest86) and let it run multiple passes to find intermittent or multi-bit errors; create the USB on a known-clean machine and boot the suspect PC from it. MemTest86 official site and how-to.
  3. If tests show errors: try one DIMM at a time in each slot to tell whether a module or a slot (or the motherboard) is at fault. If a known-good module still fails in any slot, suspect the motherboard.
  4. Check for dirty/bent contacts, and verify replacement DIMMs match the board’s supported type; if power supply voltages are unstable, that can also cause memory errors — consider PSU testing if results are inconsistent. (dell.com)

On the malware/hard-drive point: always image the drive before recovery attempts, and create rescue media on a trusted machine (for example Microsoft Defender Offline) rather than using a suspect PC to build tools. That reduces the risk of spreading infections to your own workstation. Microsoft Defender Offline guidance. (learn.microsoft.com)

Final notes: handle DIMMs by the edges, unplug power and discharge capacitors before touching internals, and buy compatible replacement RAM or RMA faulty sticks where possible.

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Member Avatar for cguan_77

loss connection on your video card.. or try reseating you memory.. check if it helps...

Member Avatar for mammaskittlez

Thank you for your input. I figured out wat the problem was.

If you receive 1-3-2 beeps then check the memory cards. One or both of them may be bad or not seated properly. First try reseating the cards and turn on the computer. if that doesn't work then remove one of them at a time and turn on the computer. the one that works and doesn't beep at you is the good one and the other one is the bad one and needs to be replaced.

Their computer was so infected that once i was able to remove all the viruses the op was wiped out so they have to buy a new hard drive.

If it weren't for my avg my computer would have been infected too as i was using a 4G flash drive to fix their computer and the worms and trojans they had tried to infect mine as well.

So be very careful when doing that.

Thank you all and have a great day. :)

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