Member Avatar for massl33t

Alright, I bought the parts to build my girlfriend a computer.

Right now, I have the mobo mounted, and the cpu&heatsink installed.
The ram is in inplace, and I believe all the jumpers are confiured correctly.

The only thing about the jumpers is this...
This is how they look..

[ ][ ][ ][ ]
[ ][ ][ ][ ]

I followed the instruction manuel and installed it like so..
[x][x][x][x]
[x][x][x][x]

But, the "Power LED" has 3 connections, instead of 2 like the rest..
So I just put It like so...
[x][x][ ]

Leaving the last one open, since there where no more pins..

With this current configuration..
My fans all come on, the heatsink powers up.
Even my huge 250mm side fan powers up.

But, that's as far as it's going..

The mouse will not come on, the keyboard wont light up.
And there is no visual..

I'm so frusterated right now I need help before I snap.

If anyone has any suggestions please help me.

Also, the CD-Drive and the HDrive are mounted, but not connected.
I wanted to get the basics up and going before I plugged them in.

If anyone can help please post.

Regards,
Mass~!!

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  • Latest Post Latest Post by cguan_77

Dani AI

Generated

Quick, focused troubleshooting steps to narrow a no-POST build. asked for the motherboard model — that single detail (and a photo of the front-panel pin cluster) will let others map the front-panel pins exactly. asked about the power LED; please confirm whether the chassis power LED lights during an attempted power-on and whether a motherboard speaker is connected to catch beep codes.

Try these checks in order:

  • Verify the motherboard manual and confirm the 24-pin ATX and the 4/8-pin CPU power connectors are fully seated.
  • Boot the board outside the case on a non-conductive surface with a minimal parts set: CPU + cooler, one known-good RAM stick in the recommended slot, required GPU only if there is no onboard video, PSU connected.
  • Attach a motherboard speaker (or use the case speaker) to listen for POST/beep codes. No beeps usually points to CPU/VRM/short or power rail issues.
  • Clear CMOS (use the jumper method or remove the battery for a minute with PSU unplugged) then retry.
  • Check for shorts: confirm only the factory standoffs are under the board and there are no extra metal screws touching the PCB. Inspect the CPU socket area for bent pins (LGA) or debris.
  • Test with another PSU or known-good RAM/GPU if available.

About the 3-pin power-LED: consult the manual for the PLED pin labels. Many boards accept a 2-pin LED connector on a 3-pin header; LED polarity matters but a dead LED normally does not prevent POST. Post the motherboard model and a clear photo of the front-panel header if problems persist.

Recommended Answers

All 2 Replies

Member Avatar for zelkea

Hey Mass,
What is the make and model of your mobo?

Member Avatar for cguan_77

Hey Mass,

The Power Led on the CPU casing lights up, during boot up?

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