Lenovo M72z beep codes

[sjatkn]

Just wondering if anyone has come across and decoded the beep codes from an Lenovo M72z all in one PC. The motherboard is making two long, three shorts beeps in a higher tone, and two shorts beeps in most higher tone. The latter two beeps appeared after I swapped out the CMOS battery, so are quite likely related to that. I've looked in the hardware maintenance manual but the beep codes don't match those mentioned (https://download.lenovo.com/ibmdl/pub/pc/pccbbs/thinkcentre_pdf/m72z_hmm.pdf).

 

Someone else has had similar beeps but could not find a solution.

https://forums.lenovo.com/t5/ThinkCentre-A-E-M-S-Series/Lenovo-ThinkCentre-M72z-MT-M-3543-A9G/td-p/1836428

 

There is an attachment with a recording of the beeps.

 

Thanks.

[Oaktech]

What spec is it? I've got an M72Z sat in my room with a smashed screen, mines a Pentium, but if the mobo is the same for a small donation to school funds and postage it's yours...

[sjatkn]

Thanks for the offer. Ours is an i3. I've actually got another M72z where some darling student has inscribed some inappropriate words in the screen, so I will be swapping components if nobody else can help.