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accal
Token Ring
Posts: 36
Registered: ‎11-10-2010
Location: US
Views: 837
Message 1 of 1

ThinkCentre M72z All-In-One Beeps on power up

Hi,

 

I have a unit with beep codes that are not found in the Hardware Maint. Manual or on Lenovo's beep code webpage.  It's intermittent. If you restart the computer enough times, it will generally boot up.  It can take 6 or 7 attempts.

 

Black Screen on internal LCD. No video on external monitor via DisplayPort.

 

Beep code:  (long-long)   (short-short-short)    (short-short).  The beep tone gets higher with each set. 

 

Swapped out RAM - same codes.  Removed RAM - different beep codes. Nothing on monitors

 

Anyone know what this might be?

 

Thanks!

Al

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