iMac 27" late 2009/2010

[Gurmon]

I have four of these machines gathering dust in the workshop. Now that I have cleared all the 2011 machines, its these suckers turn to find new homes.

There's just one problem, they all have fucked GPUs.

These all carry a chip I have never replaced before. the ATI 216-0769010.

So I ordered one "new" one from SEEIC, the BGA work went well. However now the imac, turns on, and just sits in a chime cycle. Bong, bong, bong. It would be funny if the chip wasn't +£30.00.

So the real question is, are there any new chips out there, or are they generally remarked junk. Anyone successfully change one recently, if so where did you get it ?

thanks

 

[dukefawks]

The ones I got from SEE the last batch were fine, date code 1039. A remarked chip would normally not cause a chime echo. I suspect bad soldering on the chip.

 

[Gurmon]

Okay duke. I'll give it another bash tomorrow. These chips are indeed 1039. I knew i should of reballed to leaded, but some days, you just dont have the time.

i'll report back.

 

[dukefawks]

So same chips as I got, they work fine.