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iMac starts up, chime heard, screen is black, ext. screen no signalHello. My mac is 20", 2.0 GHz, ATI Radeon HD 2400 XT A1224 (EMC 2133), Model ID: iMac7,1 MA876LL After a lightning strike, sc...
Answer to: Can I change my graphics card?Hello. I have replaced 2400XT by 2600XT in my mid 2007 imac. The old graphics card was killed by lightning. I bought this one. http://www.amazon.com/gp/product/B003CO1... It was actually cheaper then 2400. :) No firmware upgrades are needed, just plug in and go.
Answer to: no video after lighting stormhello. could you follow up your question? i have the same problem. iMac starts up, chime heard, screen is black, ext. screen no signal did you replace the video card in the end? or display panel? I replaced the motherboard but that did not solve my problem. I don't want to buy and return the video card just to check if it works.. do you know of any way to check if the display was fried? thanks a lot.