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2 Posts

03-23-2019

GB

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ThinkCentre M92p tiny Won't Boot

2019-03-23, 10:44 AM

I tried updating the BIOS on my M92p tiny and now I don't see the bios screen or any output.

 

I have tried the BIOS recovery steps in the manual:

- The system doesn't beep after a few minutes with a USB BIOS recovery key (tested and usb is bootable on another pc)

- The system turns on but doesn't show any output or errors

- I burned a BIOS CD but when plugging the CD drive into the internal sata + sata power it doesn't get powered

- I tried the CD drive while being powered from another pc and then plugging the sata in - didn't do anything

- The system will ramp up the fan for a split second and then the fan slows down and the system stays on

- Sometimes the system will reboot a few times and then go off completely. 

- Taking the RAM out gives the RAM error beep code

- The CPU gets hot so it must be powered at least?

- I left the CMOS battery out overnight

 

I have a vga cable plugged in, it's possible that it's outputting on the displayport so I'm not seeing anything but I find that very unlikely?

 

Anything I've missed or could try? If not, any idea how much a replacement motherboard is? 

 

Cheers

 

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4366 Posts

01-01-2012

US

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Re: ThinkCentre M92p tiny Won't Boot

2019-03-23, 13:51 PM

Did you move the jumper when you tried the USB drive and the CD drive:

 

Anyone-who-could-help-me-with-M92p-Tiny-BIOS-update

 

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1 Posts

05-20-2019

US

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Re: ThinkCentre M92p tiny Won't Boot

2019-05-20, 17:46 PM

I had this same issue. I got lights on the pwr button but no display. I couldn't even get to the BIOS because no display was showing. Disconnected all external devices, hd, dvd drive, mouse, keyboard and tried to boot. Nothing......so I thought maybe the system board is blown. Then I went to the manual     https://www.manualslib.com/manual/463490/Lenovo-Thinkcentre-M92p.html?page=25#manual

 

 I decided to try to clear the CMOS with these steps and it worked:

1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer.

2. Remove the computer cover.

3. Locate the Clear CMOS /Recovery jumper on the system board.

4. Remove any cables that impede access to the Clear CMOS /Recovery jumper.

5. Move the jumper from the standard position (pin 1 and pin 2) to the maintenance position (pin 2 and pin 3).

6. Reconnect any cables that were disconnected and reinstall the PCI card if removed.

7. Reinstall the computer cover and reconnect the power cords for the computer and monitor to electrical outlets.

 

Hope it will help.

 

0 person found this solution to be helpful.

This helped me too

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1 Posts

11-26-2019

MA

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Re: ThinkCentre M92p tiny Won't Boot

2019-11-26, 19:57 PM

waw it worked perfectly

thank u so mutch.

 

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