A1278 820-2936-B 3 beeps

[hgoncalves]

Hi,

I have an A1278 820-2936-B with 3 beeps. I've already replaced with known good RAM modules, but the problem persists.

I can't see nothing damaged on the board, and I don't know where to start.

Can you help?

 

[hgoncalves]

Hi,

I've tried with an PC3-8500S but same result.

I don't have a DDR3 Test card. What can I do withou it?

 

[hgoncalves]

RAM clean and pads resolder had the same result.

Any other idea that I can try?

 

[hgoncalves]

I can't figure out the problem. Any idea so I can try?

 

[2informaticos]

Get the RAM test cards; full kit DDR2/3/4...

 

[hgoncalves]

Can you recommend any link suplier for those?

 

[2informaticos]

I bought them long time ago.

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