1.8 G5 iMac caps list

[crazyben]

Does anyone have capacitor list for 17” G5 iMac. I opened it up and I see few that I need to replace. It boots up just fine. So I figure I take care of it before it goes bad.

 

[Snial]

Does anyone have capacitor list for 17” G5 iMac. I opened it up and I see few that I need to replace. It boots up just fine. So I figure I take care of it before it goes bad.

You're fortunate! The caps on my 17" G5 iMac/1.8 look fine (and are fine), but the display is glitchy, probably due to bad GPU solder balls. It doesn't boot up fully, but I can use it in target disk mode (which I did a few weeks back to get Mac OS X 10.5 installed on a Mac mini G4). I understand it's really challenging to get the GPU resoldered properly.

 

[3lectr1cPPC]

I'll add the list to my website once someone gets it.
This is the first time I've seen the Rubycon "K" caps go bad in one of these, so you got unlucky here. Usually the "+" shaped vent caps are the bad ones in these. Mine has the K caps and all were fine last I checked.

 

[crazyben]

Thank you. Keep me posted.

 

[crazyben]

I'll add the list to my website once someone gets it.
This is the first time I've seen the Rubycon "K" caps go bad in one of these, so you got unlucky here. Usually the "+" shaped vent caps are the bad ones in these. Mine has the K caps and all were fine last I checked.

Any update on this?

 

[3lectr1cPPC]

I don't have the values myself unfortunately. I can take the back off my iMac, but I probably won't be able to see all the values without removing them from the board, which I'm not going to do since my caps are still good.

 

[crazyben]

No worries. Thank you.

 

[3lectr1cPPC]

Had a look anyway and I have some answers:


Ones here with the K shaped vents on mine all appear to be 1800uf 6.3v caps. Can’t check them all but all ones I can see are that value.
The Mercedes logo style vent caps on the right side of my image appear to all be 1000uf 16v.
The smaller Mercedes logo style vent caps on the left side of my image are 1500uf 4v.
I can’t tell for any of the other through hole caps.
Then there’s the sea of SMD caps… those are easy to identify values of but god are these gonna be a nightmare to fully recap.

For any other caps not mentioned here, I’d just go and check yourself by desoldering.

Keep in mind this is for my revision only too, which is a 2.0GHz 20” iMac G5, Ambient light sensor.

 

[crazyben]

Thank you. I was looking at the eBay for my model and it matches the first 2 caps you listed. I am not even planning to recap the SMD caps. Just told hole in rt now.