2.0ghz to 2.5ghz G5 CPU swap = Great Success!
  • Jim
  • Yokemate of Keyboards
    Yokemate of Keyboards
    Posts: 4632 from 2009/1/28
    From: Delaware, USA

    jcrbett wrote:
    I was able to swap 2.7ghz Processors into a board that had 2.3. I bought both machines, but the LCS from the 2.7 machine had leaked and destroyed the PSU in that unit. After I clean the processor boards and mounted the heatsinks from the 2.3 I was able to get it to boot. Only issue is with ASD 2.5.8 the system would power off after about 5 min of thermal calibration. So I swapped motherboards but now I get the dreaded intake fan speed error during calibration.

    Trying to build the optimal MorphOS/Classic Mac PPC game machine. Managed to nab a 2.5ghz set of processors with one of the better LCS modules on it so I'll see what I can do with that. There is a recycler in town that has these PCI-X 7,3 G5's on sale for $30 CDN or so if you watch it enough so I've got a few machines. I have my old Quad G5 machine that needs the LCS rebuilt but since it's not MorphOS supported I've pushed that project back. I'm gonna try a few things with the thermal calibration and report back. Might just end up sticking the 2.3's back in it since the gains would be marginal really to 2.7GHz. I bought both the 2.7 and 2.3 machine for around $30 so it's just fun to tinker, I also have a Dual 1.8 machine I have to pick up this week that I bought for $24. I figure it'll be good for spare parts.

    Yeah, my quad could use an LCS rebuild too. And its not that different than the earlier 2.5 and 2.7 GHz AGP system's coolers.
    But I'd really like to figure out how to air cool the quad.
    "Never attribute to malice what can more readily explained by incompetence"
  • »03.10.17 - 01:18
  • Order of the Butterfly
    Order of the Butterfly
    Posts: 379 from 2010/10/14
    From: Nevada
    Man, talk about a blast from the past. :P Well, only about 4 years ago, but it was fun.

    Depending on which firmware is on the G5 macs, you can upgrade to the 2.7GHz, but that is not always the case. I don't have the firmware versions of the G5 which would allow for a 2.7GHz upgrade.

    It is ideal to also replace the fans. The stock ones will run too slow and usually doesn't help the cause. Better to have them running all the time so all the heat leaves out of the case. On stock fans, the heatsinks from my 2.0GHz got hot after a bit.
  • »03.10.17 - 02:05
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