crwdns2936637:0crwdne2936637:0 crwdns2853008:0crwdne2853008:0 crwdns2861143:0crwdne2861143:0

Model A1311 / Mid 2010 / 3.06 & 3.2 GHz Core i3 or 3.6 GHz Core i5 Processor

crwdns2934591:0343crwdne2934591:0 crwdns2934593:0crwdne2934593:0

crwdns2933897:0crwdne2933897:0

Led 3 &4 off no chime

2010 iMac no chime led 1& 2 on 3& 4 off and no chime

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

crwdns2934109:0crwdne2934109:0

crwdns2853045:0crwdne2853045:0 crwdns2853046:0crwdne2853046:0
crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0

crwdns2933313:01crwdne2933313:0

crwdns2934221:0crwdne2934221:0
crwdns2931211:0crwdne2931211:0 crwdns2931215:0crwdne2931215:0 crwdns2934225:0crwdne2934225:0
crwdns2934051:0crwdne2934051:0

crwdns2933897:0crwdne2933897:0

Generally this is a GPU failure. Please give us the size or model number of your Mac, information is located on the bottom of your stand.

UPDATE 4/25/20

Time to replace or attempt repair of your GPUcard:

iMac Intel 21.5" EMC 2389 GPU Card Replacement

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crwdns2853045:0crwdne2853045:0 crwdns2853046:0crwdne2853046:0
crwdns2889612:0crwdne2889612:0 2

crwdns2944067:02crwdne2944067:0:

Hi Mayer, I do have the same problem, no chime, led 1 and 2 are ON, led 3 and 4 are OFF. My imac size is 21.5 inch and EMC No is 2389.

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

Sathish see update to question

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crwdns2934285:0crwdne2934285:0

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Frank bellion crwdns2934231:0crwdne2934231:0
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crwdns2936751:024crwdne2936751:0 0

crwdns2936753:07crwdne2936753:0 0

crwdns2936753:030crwdne2936753:0 3

crwdns2942667:0crwdne2942667:0 70