crwdns2936637:0crwdne2936637:0 crwdns2853008:0crwdne2853008:0 crwdns2918746:0crwdne2918746:0

Model A1225 / Mid 2007 and Early 2008 / 2.4, 2.8, or 3.06 GHz Core 2 Duo processor

crwdns2934591:020crwdne2934591:0 crwdns2934593:0crwdne2934593:0 | crwdns2947278:032crwdne2947278:0 crwdns2947270:0crwdne2947270:0

crwdns2933897:0crwdne2933897:0

iMac 2008 no display, no chime

I have brought an Imac, and it's fans start spinning and diagnostic led's 1,2 and 3 are on the 4th one isn't no display but machine running?

crwdns2934089:0crwdne2934089:0 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

crwdns2933897:0crwdne2933897:0

Sadly the GPU logic has likely failed (soldered on ATI Radeon HD 2600 GPU) or the high end offered a GPU module.

Or the LVDS cable connection to the display has become damaged or the LCD display its self.

  • A used replacement logic board goes for $60 ~ 80 USD
  • A used GPU board 2007 (2.6GHz and 2.8GHz models) $150
  • A used display is about $80
  • A used LVDS cable is about $12

Without doing more diagnostic work I’m only guessing.

crwdns2934105:0crwdne2934105:0

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

crwdns2944067:02crwdne2944067:0:

Could it be the inverter cables?

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

@Dylan The PC Builder - The inverter only drives the backlight not the LCS panel its self.

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

crwdns2934285:0crwdne2934285:0

crwdns2934229:0crwdne2934229:0

Dylan The PC Builder crwdns2934231:0crwdne2934231:0
crwdns2936625:0crwdne2936625:0:

crwdns2936751:024crwdne2936751:0 0

crwdns2936753:07crwdne2936753:0 0

crwdns2936753:030crwdne2936753:0 0

crwdns2942667:0crwdne2942667:0 80