Are 661-4665 and 661-4995 PSU's interchangeable?
I have an early 2008 iMac, 3.06 GHz Core 2 Duo (E8435), model A1225 (EMC 2211).
It has 6Gb of ram and a 2TB Western Digital Black hd, along with the Nvidia Geforce 8800GS video card. It has been a great computer.
Over the past 5 years of owning it, the LCD went defective twice, as did the video card, and they were replaced under warranty. But yesterday, the computer made a lovely (and loud) *POP* like a firecracker went off in the system, then died, leaving behind the faint smell of sulfur in the air.
I did my research, popped it open and checked the diagnostic led's, and they were all off, possibly indicating that my 661-4665 PSU was dead.
In trying to find a replacement PSU, I discovered that Apple discontinued the 661-4665 unit (that has 3 heat sinks on it) and replaced it on the next 3.06Ghz iMac with a 661-4995 psu that does not have heat sinks, and is built by Delta instead of the previous LiteOn. The new 661-4995 unit appears to be a little more solidly built, and I was wondering if the 661-4995 will work properly in my system, or should I simply replace it with another 661-4665?
All the connections on them are the same, and the mounting points are identical as near as I can tell.
Just need to know which direction to go!
Thanks very much!
Stephen
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So, has anyone actually tried replacing the 661-4665 with the 661-4995?
por Joe
Well... shoot. My new power supply finally arrived. It was only two days late due to the USPS losing it and then trying to deliver it to the WRONG home.
Got the new 661-4665 installed....... and nothing. The iMac is still dead. So at this point I don't know what to do. None of the diagnostic LED's are coming on at all, and I'm flat broke now that I spent my money on a new PSU.
I triple-checked all connections and cables and found... nothing. Something ELSE must have fried along with (or instead of) the power supply. Possibly the logic board?
But since I'm on disability, there's no way I can replace anything else at this point. It's a large, shiny, paper weight, unless someone else has a suggestion I can try.
Thanks all.
por Stephen
Update, October 30th, 2013.
After a lot of digging and searching, it turns out that not only was my PSU fried, but the *new* PSU I ordered from Go Mac Pro on eBay was dead on arrival.
After a bit of chatting with their customer service, they refunded my money, and I took the iMac to a professional Apple trained tech service where they double checked to make sure nothing else was damaged, then they popped in a new power supply for me that they ordered (and TESTED).
So now my iMac is back up and in working order again!
por Stephen