Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

tawnytim

macrumors newbie
Original poster
Mar 8, 2023
15
0
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

macrumors 68020
Feb 21, 2017
2,148
4,320
Back End of Beyond
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

macrumors G5
Jul 30, 2003
13,528
4,429
Delaware
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

macrumors Penryn
Feb 20, 2009
28,594
12,707
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

macrumors newbie
Original poster
Mar 8, 2023
15
0
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

macrumors newbie
Original poster
Mar 8, 2023
15
0
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

macrumors newbie
Original poster
Mar 8, 2023
15
0
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.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.