Backlight shutting down randomly after gpu replacement

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iMac Intel 27" EMC 2309 & 2374

iMac Intel 27" EMC 2309 (Late 2009, Core 2 Duo 3.06 or 3.33 GHz) ID iMac10,1, EMC 2374 (Late 2009, Core i5 2.66 GHz or Core i7 2.8 GHz) ID iMac11,1

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Hello together!

I have replaced the GPU due to a GPU error (no boot only in safe mode and then with horizontal stripes at the cursor).

Everything worked fine for a few hours, but now the backlight of the LCD goes off at random intervals (LCD works, but no backlight).

I now opened everything again and saw that the Vsync flex cable is damaged (pins broken) probably I was too rough during disassembly....

Can I now simply replace the cable and everything works again or is more defective?

If I do not connect the cable the error remains unfortunately...

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Dan @danj Rep: 480.3k Self employed contract worker 35 330 971 · Answer 1 · 2023-09-08T14:24:15-07:00

Rep: 480.3k

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I would start there, is the sockets damaged?

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1 Comment:

No it seems to be okay