Replaced ram, now three beeps

[tawnytim]

Hey, got a 21.5" imac A1418 14,3. customer supplied ram upgrade but we get the three beeps indicating RAM problem. We then bought ram from OWC which is where we normally get mac ram, but same problem, the three beeps. CMOS battery was 2.88v, so we replaced. I've done many ram upgrades in these, and not sure what's going on. Any insight?

specs
ram used

We've now had the board out a few times and memory is well seated - I can assure.

 

[rpmurray]

You say you get three beeps. Is it three beeps and then a five second pause, or is it three long beeps and then three short beeps?

Have you tried to reset NVRAM?

 

[DeltaMac]

Unfortunately, trying various memory configurations is not a fun task when you have to unplug and remove the logic board each time.
You might want to reinstall the original RAM, just to check that is still working.
Then, you can try one of the new RAM sticks in one slot only, successfully boot, then move that same stick to the second slot, and try for another boot, still with a single stick in place. If still successful, with the single stick, now add the second stick, and try once more.

 

[Fishrrman]

I'd open it up, put the original RAM back in, close things up again.
And... if it's back to working that way, I'd just "leave it as it is" and not bother with it again.
(but that's just me)

 

[tawnytim]

I'd open it up, put the original RAM back in, close things up again.
And... if it's back to working that way, I'd just "leave it as it is" and not bother with it again.
(but that's just me)

Unfortunately, we put back the original ram and still getting the beeps.

 

[tawnytim]

You say you get three beeps. Is it three beeps and then a five second pause, or is it three long beeps and then three short beeps?

Have you tried to reset NVRAM?

Three long beeps, then 5 seconds.

 

[tawnytim]

Unfortunately, trying various memory configurations is not a fun task when you have to unplug and remove the logic board each time.
You might want to reinstall the original RAM, just to check that is still working.
Then, you can try one of the new RAM sticks in one slot only, successfully boot, then move that same stick to the second slot, and try for another boot, still with a single stick in place. If still successful, with the single stick, now add the second stick, and try once more.

Yep, going to be down to trying with one stick. The original RAM is not working either now. No idea what is going on. We've done many of these without issue.