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I am trying to get onto the internet this PB100 running System 7.0.1up via MacTCP via fixed IP. It can print to a networked LaserWriter 12/640, but no internet, no email, no ftp, not even network time. I recall working flawlessy when I had dsl, but now with gigabit fiber I believe that something...

Case positively closed: the early 2005 logic board of the liquid cooled 2x2.7 GHz PowerMac accept the 2.0 GHz FX processors. See picture:

While at my project of fixing my busted G5 collection (accumulation) I discovered that some 2x2.0 GHz configurations have a logic board with the plug for the pump, so I assume that the upgrade of these units with 2.5 or 2.7 GHz processors (the only cooled by liquid excluding later dual) is...

I now have several good boards and several lcs. I managed to completely rebuild two flawless PB 100. Now I have some recapped logic boards and 4 lcd: 3 blacks and 1 good (but with a colums of dead pixels due to a crack in a corner). The 3 black lcds stay black with any logic and the good one is...

I resurrect this old thread because I tested a bunch of black lcd with know good logic board and good inverter. Basically I simply swapped the black lcds to a known good combination of inverter and logic. Lcd recapped but the black syndrome stays therefore it must be something else on the lcd...

Ok. So I ended up buying two more processors. Although they were 2.5GHz not the 2.7GHz (I wanted the 2.7 because these were the original and because there is a sort of historical value, being the 2.7 GHz PowerPC processor the one with the highest clock ever installed on a Mac) I could rule out a...

Went back to LCS. No chime. Back to air no chime. These G5 are a nightmare. Long ago I promised to myself to forget about G5s and then came this one from my university lab... what a frustration!

Made the final transplant along with new thermal paste, but the 2.7 runs too hot. I think I will go back to the liquid cooling. This is what happens whilst loading a web page:

The pipe is the weird thing attached to the processor board and kept bond by two screws and thermal pad (not easy to take apart). I believe that the original can stay, but some guys suggest to swap this too.

Did you leave the daughter pipes or replaced those too?

Found another dead G5, this time the processors were ok, so I fixed my original 2.7. Processors air cooled modification followed by calibration with the pump connected. is it now safe to remove the pump? I am not so sure.

I am trying to get it work with a bare 500 MB IDE pulled from a PB 190, similar age should be less problematic, or am I wrong and should use more recent IDE stuff?

Tonight I want to try with a blackbird, PB 540

I found this old thread. I have two of these cards but I have never been able to get them to work. PowerBooks from 100 to 180c, from 6.0.8 to 7.5. I tried also with a couple of versions of HTD. Are there some specific setting, for the 8 switches? Or the four pins on the IDE side?

Incidentally, I have another G5, a June 2004, which is a 7,3 but has two 2.0 GHz 970 not fx

Yes, infact when it stals the fans get quiter

Some results: ASD: all tests passed Booting in verbose mode says: overtemp signal Connceted the pump (this one in the picture is one of the LCSs that I have fixed): the boot process arrives at a blue screen but cannot get to the desktop and the fans become quiter, so I immediately powered it...

I am running right now the ASD tests. RAM yes, two sticks 256 for a total of 512. I was thinking of trying Morphos, but will also try Linux and verbose. Will keep you posted.

Anyhow: ASD says that both processors are ok, but I cannot get to load the desktop and can only boot open firmware and ASD, no OS X CD nor HD.

I did check, my 2.0 GHz are all 970, none of them is FX. So far I have 5 couples of stone dead 2.7 and another bunch of dead 2.0. What a disaster has been this G5 project!