Member Avatar for chad1075

Hello,

My daughter placed a installation cd in her cd drive earlier and plugged in a new MP3 player.

She says that when she plugged in the MP3 that the system said it was entering sleep mode.

It would thne not turn back on.

I tried the power supply, I switched the power cord with another computer that is working.

It does not seem that there is any power at all... no lights, not fans no sound at all.

Does anyone have any ideas at all?

Thanks in advance for your help.

Chad

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Adding to the useful points from and , here is a safe, ordered way to isolate why the ThinkCentre shows no signs of life. Follow the steps in order and stop if anything feels unsafe — mains voltage is dangerous.

Start with the simple checks: confirm the wall outlet and any power strip actually work (try a lamp). Make sure the PSU switch at the back (if present) is ON. Remove the MP3, any USB devices and the CD so nothing external can short or confuse the system during tests. If the machine still gives no LED, fan or beep, proceed inside the case.

With the machine unplugged, open the case and do a visual inspection: look for bulging or leaking capacitors, burn marks, or a strong burnt smell. Check that the front-panel power switch cable is seated on the motherboard header; if comfortable, unplug that cable and briefly short the two power-switch pins on the motherboard with a small screwdriver to rule out a failed case switch (do not short any other pins). Reseat RAM and all power connectors while you are there.

If those checks don’t help, test the PSU itself. With the PSU disconnected from the motherboard you can do the standard ATX start test (short the green wire to any black ground on the 20/24-pin connector) to see if the PSU spins and provides voltages. Use a multimeter to verify +5V/+12V rails and the +5VSB rail before trusting the unit. If the PSU will not start or voltages are absent/incorrect, replace the PSU. If the PSU runs fine off the bench but the system still won’t power when connected, the motherboard or a protection fuse on it may be blown.

Note: Many ThinkCentre models use small-form-factor or proprietary PSUs — match the replacement exactly or use a known-good compatible unit when testing. If you are not comfortable with these steps, or you find burned components, take the unit to a repair shop.

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Member Avatar for dcc

What kind of installation CD did she use? Is it still in the drive?

Member Avatar for chad1075

It was a software installation cd to convert cd's to mp3's for her MP3 player.

Yes it is still in the cd drive.

Chad

Member Avatar for 84cutty

Hello,

My daughter placed a installation cd in her cd drive earlier and plugged in a new MP3 player.

She says that when she plugged in the MP3 that the system said it was entering sleep mode.

It would thne not turn back on.

I tried the power supply, I switched the power cord with another computer that is working.

It does not seem that there is any power at all... no lights, not fans no sound at all.

Does anyone have any ideas at all?

Thanks in advance for your help.

Chad

It sounds like your power supply failed. When you say "you tried the power supply" do you mean you replaced it with a working one?

What type of thinkcentre do you have? I may have a power supply if you need one.

Let me know.....

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