Member Avatar for Lozzo87

I have just installed a new a psu, cpu, ram and gfx card to the mobo. I did everything properly grounded etc, and reattached all the power cables to the right places.

I go to start up my pc and I get no visual output on the monitor, I am also not receiving any beeps from the motherboard. I have tried booting without the RAM and without the CPU, this makes no difference. I have also tried both visual outputs on the new gfx. What the hell is going on? I should also mention the loading light flashes constantly for about 10 seconds then stops, then all im left with is the power light. All fans work.

I cannot remember whether the system speaker was working before I Installed the new hardware, however if it is not connected I have no idea how to reconnect the pc speaker. I have looked at the manual and it shows me the connectors for the pc speaker, but I do not see any wires that should be plugged into the relevant ports.

I have also tried resetting the cmos, removing the battery etc.


Intel Quad Core 2.6ghz
Geforce 8800GT
2GB DDR2 800mhz RAM
Asus P5N32-E Deluxe

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Dani AI

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This is a classic “power on, fans spin, no POST/no video” failure where the CPU never finishes initialization. ultimately fixed it by re-seating the CPU and reapplying thermal compound; was right to steer the troubleshooting toward minimal-boot checks and heatsink/paste issues. The notes below explain why that can stop a board from posting and give a compact, reliable checklist to follow before assuming a dead CPU or motherboard.

Why this happens

  • Early POST failure with no beeps usually means the CPU either isn’t making proper electrical contact, isn’t being powered correctly, or the board can’t initialize the CPU (BIOS incompatibility is another possible cause). On Intel LGA boards a small seating error, bent socket pins, uneven cooler pressure, or thermal compound contamination can prevent the CPU from being detected even though fans spin.

Practical diagnostic checklist (do these in order)

  1. Minimal build: 24-pin ATX + 4/8-pin CPU power connected, one known-good RAM stick in the recommended slot, CPU and cooler fitted, no discrete GPU (use onboard video if available), speaker attached.
  2. Inspect socket and CPU: with cooler removed, check the socket area for bent pins or debris; confirm the CPU is oriented and the retention arm fully latched.
  3. Clean & reapply compound: remove old paste using 90%+ isopropyl and a lint-free wipe, apply a small even amount (not a blob that will squeeze out everywhere), and tighten the cooler evenly to avoid tilting.
  4. Verify front-panel speaker or borrow one so you can hear beep codes.
  5. If still dead: try a known-good PSU or known-good CPU (or use the old CPU to flash a BIOS version that supports the new chip).

Cautions and next steps

  • Avoid over-tightening the cooler or touching socket pins. Use static-safe handling. If a minimal-config test with a known-good CPU/PSU still fails, the board is likely faulty and should be RMAed. If BIOS support is in doubt and you cannot boot to update, you will need a compatible temporary CPU to flash the BIOS or seek vendor assistance.

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Member Avatar for jimbojone

make sure you put ample paste between the cpu and sync, i've seen the exact same issue when that happens. also, remove the graphics card,, and try and use the on board. after you've done that, if it still won't boot, remove the ram. this should produce a series of beeps, if not, either the mobo or cpu is hooped.

Member Avatar for Lozzo87

make sure you put ample paste between the cpu and sync, i've seen the exact same issue when that happens. also, remove the graphics card,, and try and use the on board. after you've done that, if it still won't boot, remove the ram. this should produce a series of beeps, if not, either the mobo or cpu is hooped.

I installed my old cpu and it worked fine. So it must be an issue with the cpu. I did some research and apparently the release BIOS version forthe p5n32-e sli motherboard does not support intel core 2 quad processors. Apparently an update for the bios allows these processors to work, so I installed the new bios, installed the new processor but it still has the same results as I mentioned earlier. I guess they shipped me a broken cpu (brand new).

Member Avatar for jimbojone

seen it many many times b4.

Member Avatar for Lozzo87

Got it working!!

Removing the CPU and re-applying the thermal paste did the trick. Thanks for the advise, I would have thrown away a perfectly good CPU if I hadn't have reinstalled it.

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