Looks bigger than the ones Power7 systems, e.g. on the Power7 770 the heatsinks are within the CPU drawer, so it could well be that this is indeed the caseThis is a big achievement in increasing the G5's ram capacity. Well Done!
extract from service manual
In the Power Mac G5 (Late 2005), DIMMs must fit the following specifications. Memory from older Macintosh computers is not compatible. PC2 4200, 533 MHz, DDR2 DIMMs 240-pin module Maximum number of memory devices on DDR2 SDRAM: 18 Nonparity Unbuffered (registered or buffered DDR2 SDRAM cannot be used) Either error-correcting code (ECC) or no error-correcting code (NECC) modules Note: Do not mix ECC and NECC memory modules within a pair. To identify ECC and NECC DIMMs, check the chip side of the DIMM. ECC DIMMs include an extra memory device as marked below. NECC DIMMs do not have this device
You guys have broken this limit that Apple engineers have set.
!IBM FAN ASSEMBLY 80MM FOR 8286 S824 PSERIES POWER8 PN: 00FV629
This is a big difference to the unit that Apple designed for the G5. How effective is this unit and what sort of temps are expected from it?
I reckon this is a heat sink and fan in a plastic box.
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Overclocking the G5 CPU
- Thread starter simie
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26.5Gb it is officially on the Powermac G5 Quad
Strangely enough gnome-system-monitor does detect 27.8Gb but with 1.6Gb as cache
Trying to work out a way to have a 4Gb DIMM in the second slot to break the 30Gb barrier
Cheers,
EDIT: looks fully functional, I ran an R job (Seurat) using 16-20Gb and it completed successfully
This is an AMAZING job!
Now you just gotta get in touch with Larry at OWC to offer 2.5GHz Air Cooled PowerMac G5s with 32GB RAM for vintage enthusiasts xD
Posted by
u/rabidz7
PowerMac G5 Quad: 7800 GTX 512, 5TB HDD + 500GB SSD
9 years ago
This was realised all those years ago but no -one ever took up on the idea.
u/rabidz7
PowerMac G5 Quad: 7800 GTX 512, 5TB HDD + 500GB SSD
9 years ago
Overclock And Install 64GB Of RAM On A PowerMac G5 Quad!
This was realised all those years ago but no -one ever took up on the idea.
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That's because the individual you quoted has managed to build up a certain reputation.
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This is the IBM BladeCenter JS21 max speed 2.6Ghz to 2.7Ghz single core and 2.5Ghz dual core.
Amazingly it can only run 16gigs of ram
There must be similarities between this board and the daughterboard in the Mac Pro, If there is an Eeprom then IBM must also use one and possibly the same one.
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I ran a power 8 server in my homelab for a bit(s822l), and trust me you don't want those fans. Even idling they are pretty loud, it has 2 fans in it and can move lots of air!IBM FAN ASSEMBLY 80MM FOR 8286 S824 PSERIES POWER8 PN: 00FV629
This is a big difference to the unit that Apple designed for the G5. How effective is this unit and what sort of temps are expected from it?
I reckon this is a heat sink and fan in a plastic box.
Did you ever try to get OSX running on it?
I have a HP ML360 g6 and it is very noisy upon boot up, you think the thing is about to take off as the fans rev up.
It wouldn't work on it, the hardware and firmware are too different for OSX. Especially the one I had which was slightly crippled in that it could only run linux pretty much. You could probably swing it with qemu, but it'd be straight emulation which can be done on any arch really.
It was stupid loud when booting up, way louder than any other server I had lol. You had to practically shout just to hear someone else, and only quieted down to sub hearing damage levels of loud after everything came online. Partially why I got rid of the thing. It was a badass server though, dual 10 cores clocked at around 4.15ghz, 8 way multi-threaded per core and more ram than I knew what do with. I loved working with LPARs and the HMC, especially when coupled with POWERVM
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There would not be much point in using Qemu on such a machine, you might as well run it on Intel Xeon under either windows or linux distro
Posted by
u/rabidz7
PowerMac G5 Quad: 7800 GTX 512, 5TB HDD + 500GB SSD
9 years ago
Overclock And Install 64GB Of RAM On A PowerMac G5 Quad!
This was realised all those years ago but no -one ever took up on the idea.
Somewhere, on a desert island in the South Atlantic, rabidz7 is living his very best life with an Apple-made 7448 PowerBook G4, overclocked to 2.16GHz, and he watches 4K movies on his overclocked, quad-core Power Mac G5 home server running at 3.0GHz. He powers his thatched-roof home with rainbow panels — modified solar panels re-engineered to generate power from rainbows. He has everything he dreamt of, so he no longer has any need for internet. This is why we don’t hear from him anymore.
After reading through the manual for the HP 350p G6 pdf there is mention of accelerators that can be used, if the drivers are available or could be written these would work in the PPC quad. Could the drivers for Linux be modified to work with OSX
Here are the model numbers.
Mainstream Endurance
(ME) PCIe Workload Accelerators HP 1.4TB
HH/HL Mainstream Endurance (ME) PCIe Workload Accelerator 729307-B21 HP 700GB
HH/HL Mainstream Endurance (ME) PCIe Workload Accelerator 729305-B21 High Endurance (
HE) PCIe Workload Accelerators HP 700GB HH/HL High Endurance
(HE) PCIe Workload Accelerator 708090-B21 HP 350GB
HH/HL High Endurance (HE) PCIe Workload Accelerator 708088-B21
Light Endurance (LE) PCIe Workload Accelerators HP 5.2TB FH/HL Light Endurance
(LE) PCIe Workload Accelerator 775672-B21 HP 2.6TB HH/HL Light Endurance
(LE) PCIe Workload Accelerator 775670-B21 HP 1.3TB HH/HL Light Endurance
(LE) PCIe Workload Accelerator 775668-B21 HP 1.0TB HH/HL Light Endurance
(LE) PCIe Workload Accelerator 775666-B21
What a difference something like these would make.
Here are the model numbers.
Mainstream Endurance
(ME) PCIe Workload Accelerators HP 1.4TB
HH/HL Mainstream Endurance (ME) PCIe Workload Accelerator 729307-B21 HP 700GB
HH/HL Mainstream Endurance (ME) PCIe Workload Accelerator 729305-B21 High Endurance (
HE) PCIe Workload Accelerators HP 700GB HH/HL High Endurance
(HE) PCIe Workload Accelerator 708090-B21 HP 350GB
HH/HL High Endurance (HE) PCIe Workload Accelerator 708088-B21
Light Endurance (LE) PCIe Workload Accelerators HP 5.2TB FH/HL Light Endurance
(LE) PCIe Workload Accelerator 775672-B21 HP 2.6TB HH/HL Light Endurance
(LE) PCIe Workload Accelerator 775670-B21 HP 1.3TB HH/HL Light Endurance
(LE) PCIe Workload Accelerator 775668-B21 HP 1.0TB HH/HL Light Endurance
(LE) PCIe Workload Accelerator 775666-B21
What a difference something like these would make.
The lack of a bootloader could easily be remedied using yaboot and specifying "macosx=/dev/sda1" for example but you're absolutely spot on, the lack of a compatible platform extension would very likely cut the boot very short.
The only way I see around it (and it's a very, very long shot) would be to use a POWER-compiled and -tailored version of Darwin ppc and run osx on top of it
OS X on POWER?
Could OS X run on one of IBM's POWER4+ or POWER5 big servers? (that is, if Apple wanted it to happen)Are their any big obstacles to making that happen? Is the absence of Altivec a big problem?Cause if it could happen, I think it would be cool if someone tried it...even if it's just for some...
arstechnica.com
Yes up to Darwin 8 for which all source code is entirely available, then it's on to PureDarwin which has been mostly completed for subsequent versions (as in having all the available source code put together and fixed and the missing gaps filled - Apple never released all source code for versions >8) but compiled not for ppc afaik
The Xmas version of PureDarwin even has xfce running nicely on top (version 9), and I think the latest working version is 17 without a window manager
What we need is a company to donate some hardware so we can experiment with these ideas! <y reason for suggesting this is that they scrap hardware all the time and donating it for us to experiment with gets rid of it for them. Who knows!Yes up to Darwin 8 for which all source code is entirely available, then it's on to PureDarwin which has been mostly completed for subsequent versions (as in having all the available source code put together and fixed and the missing gaps filled - Apple never released all source code for versions >8) but compiled not for ppc afaik
The Xmas version of PureDarwin even has xfce running nicely on top (version 9), and I think the latest working version is 17 without a window manager
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No sign of the server
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If you want I have a couple of Power7+ 4-core 3.8 GHz CPUs to donate (from a Power7 770 9117-MMD machine that was badly transported, the midplane has massively bent and missing pins and the CPU drawer connector is damaged beyond repair on the drawer side)IBM Power7 4671614 4.2Ghz 8-Core CPU Processor | eBay
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No sign of the server
I do have another 9117-MMD that I am trying to get online, the FSP works but for some reason I can't get the CPU drawer recognised and bootup fails with a resource not available BXXXXXX error code, possibly also slightly damaged midplane, I need to take it out and straighten whatever is slightly bent there
You ordered one or want to get one as well 👍? I had found mine on allegro.pl for 150€, not sure they are still thereIBM Power7 4671614 4.2Ghz 8-Core CPU Processor | eBay
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No sign of the server
IBM 7380 4.7GHz 0/2 Core POWER6 Processor Card 10N9238 10N9244 10N9447 10N9514 | eBay UK
Product images are for illustrative purposes only.
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This is a plug in CPU unit with a Power 6 CPU.
After looking at the various photographs of the various G5 CPU daughter cards, I am concluding this, at both ends of the cards there appears to be test pads and some of them are labelled like with 12v and gnd. Now this indicates that Apple have a way of testing these cards separately from the G5 motherboard. Has this been mentioned before?
At the other end there appears to be more test point and I and now thinking that this is information from the CPU or the Eeprom telling us the CPU is working and possibly its speed. I may be completely wrong here but what does anyone else think?
As anyone come across a service manual for these daughterboards containing the CPU, Apple must have written technical notes and repair guides.
At the other end there appears to be more test point and I and now thinking that this is information from the CPU or the Eeprom telling us the CPU is working and possibly its speed. I may be completely wrong here but what does anyone else think?
As anyone come across a service manual for these daughterboards containing the CPU, Apple must have written technical notes and repair guides.
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Hi sasho648,
So I did have a go with parity ram (2x 8Gb PC2-5300-P), it looks like a no-go as well (telephone beep); but individually inserted they do get recognised, but not allocated
Re the feasibility of having 8Gb sticks, one idea could be to try to change #size-cells to <2> from " reg" in /memory (instead of <1>)
I think the failure of PRep/CHRP is what really killed the AIM alliance. Had it succeeded Motorola and IBM would‘ve had massively expanded markets for powerful desktop processors. Without it they were limited to Apple’s sales, which IIRC were about 1M Macs/quarter. Given those small economies of scale it was more profitable for Motorola to steer towards the rapidly growing market for embedded systems, and for IBM to focus on its POWER servers and mainframes.
It’s also good to remember just how flat-footed Apple and Intel were caught by AMD’s release of the Athlon. Intel responded by bumping up clocks and power consumption, but Motorola, in the middle of a manufacturing crisis caused by the bungled transition to SOI, had absolutely no answer. I always saw the G5 as a desperation move by Apple, just to get some parity with AMD and Intel clocks and performsince. But IBM was never going to recoup the development money for a G6 with Apple‘s sales at the time, and Motorola just plain couldn’t.
It is like Apple and their M2 roadmap, they have taken this route because the Intel Xeon Cpu's have gone far beyond what Apple was prepared to use in their Mac Pro's. Intel has Cpu's that make the Mac Pro look stupid but comparing this to IBM who were stuck in a rut, their processor speeds and being obsessed with limiting the number of cores on the die. I am sure Apple could have used the Cell Cpu and putting in a decent GPU to boost performance. I wonder in the lifetime of the Powerpc what the sales figures were compared to Intel Xeon Mac Pro's?