crwdns2933423:0crwdne2933423:0

A1418 | EMC 2889 | Late 2015 | 1.6 GHz dual-core Intel Core i5 or 2.8 GHz quad-core Intel Core i5. Released October 13, 2015.

crwdns2934591:047crwdne2934591:0 crwdns2934593:0crwdne2934593:0

No Display back light only - can't see icons wont display externally

Does anyone know if the GPU is upgradeable or replaceable? on the iFixit teardown, I cannot see where the GPU is on the logic board or whether it’s a replaceable part?

The issue is Currently, the iMac turns on and chimes and but no display, just backlight glow and can’t see any icons using a torch. It also won’t display externally using an external display port.

Any ideas?

Thank you

crwdns2934081:0crwdne2934081:0 crwdns2934083:0crwdne2934083:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0

crwdns2933313:01crwdne2933313:0

crwdns2934051:0crwdne2934051:0

Sorry, the last replaceable GPU MXM board model was in the 2011 models.

This model does not offer a dedicated GPU, it only offers the Intel HD Graphics 6000 or Intel Iris Pro Graphics 6200 which is within the CPU chip.

You’ll need a to replace the logic board. iMac Intel 21.5" EMC 2889 Logic Board Replacement

You’ll also need these tools:

crwdns2886500:0Plastic Cardscrwdne2886500:0

crwdns2934075:0crwdne2934075:0

Plastic Cards

$2.99

crwdns2886500:0iMac Opening Wheelcrwdne2886500:0

crwdns2934075:0crwdne2934075:0

iMac Opening Wheel

$7.99

crwdns2934105:0crwdne2934105:0

crwdns2889612:0crwdne2889612:0 1

crwdns2942205:01crwdne2942205:0:

Thanks Dan, this is what I was thinking.

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

crwdns2934285:0crwdne2934285:0

crwdns2934229:0crwdne2934229:0

Craig crwdns2934231:0crwdne2934231:0
crwdns2936625:0crwdne2936625:0:

crwdns2936751:024crwdne2936751:0 0

crwdns2936753:07crwdne2936753:0 0

crwdns2936753:030crwdne2936753:0 1

crwdns2942667:0crwdne2942667:0 38