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Post #427,352
by Another Scott
1/30/19 9:13:14 PM
1/30/19 9:13:14 PM
Reply
New :-)
I'll check those things if I find the time to pull the glass and the screen to get access to them.

Part of the Apple Hardware tests is a detailed test that exercises all the RAM. It took over an hour (16 GB) but didn't find anything wrong.

I'd really like it to be the case that I can resurrect it for the price of a 2032 battery, but it will have to wait until I can find the time to take it apart. (Conversely, I'll be really pissed if it is the graphics board (costs about as much as a whole iMac on eBay...).)

Thanks muchly. :-)

Cheers,
Scott.
Post #427,358
by scoenye
1/31/19 7:43:07 AM
1/31/19 7:43:07 AM
Reply
New Is there a clock anywhere on the diagnostic screens?
PC UEFI/BIOS screens usually have a time display. If the Mac has something similar, that would be a surefire way to check the battery. If the clock is correct, the battery is doing fine. OTOH, if it thinks it is 02/24/1955, the battery is dead.
Post #427,359
by Another Scott
1/31/19 7:46:00 AM
1/31/19 7:46:00 AM
Reply
New Ah, good idea! I'll try to check. Thanks.
     Fun with iMacs... - (Another Scott) - (8) - Jan. 29, 2019, 10:35:51 PM EST
         Wow! Given the time and effort you've put into it, I'm amazed you didn't just go buy a new one. -NT - (a6l6e6x) - (1) - Jan. 29, 2019, 10:58:49 PM EST
             It takes a long time to buy stuff at work. ;-) -NT - (Another Scott) - Jan. 29, 2019, 11:22:38 PM EST
         BSOD on a Mac? I feel a patent spat coming on... - (scoenye) - (3) - Jan. 30, 2019, 07:06:56 AM EST
             :-) - (Another Scott) - (2) - Jan. 30, 2019, 09:13:14 PM EST
                 Is there a clock anywhere on the diagnostic screens? - (scoenye) - (1) - Jan. 31, 2019, 07:43:07 AM EST
                     Ah, good idea! I'll try to check. Thanks. -NT - (Another Scott) - Jan. 31, 2019, 07:46:00 AM EST
         iMacs are great while they're working - (pwhysall) - (1) - Feb. 2, 2019, 09:16:12 AM EST
             I can aver that.. electronics doesn't Like (any extra ) heat, - (Ashton) - Feb. 21, 2019, 11:21:38 PM EST

Now, right off the bat you have to worry about a recipe found in Chemical and Engineering News.
155 ms