Hi guys,
I'm trying to troubleshoot my kernel panics and I noticed that someone else has a similar problem and a similar setup - not a lot of ram. I've got 6GB and he's got only 4...
I wonder if someone could do me a favor and remove a few dimms so you only have 4-6GB and then just go about your business in ElCapitan. If you don't get a kernel panic in an hour or so, then we can at least rule out low ram as the culprit. If you do, then I'll get myself some more ram.
Can anyone help us out?
TIA
~iMattux
(P.S. - in case you're wondering why I haven't bought any more ram, I was planning on buying 32GB once I knew I could run EC. If there's something wrong with my box, I don't want to waste the $
)
I have been running El Capitan (10.11.1) for some time now on a Mac Pro 1,1, and employ Pike's Mac OS X El Capitan Bootloader v3.1, since 28 Oct 2015. I have found no issues to report and have decided, as of yesterday, to migrate to El Capitan as my primary operating system. I formerly used Yosemite, v10.10.5, and Snow Leopard, v10.6.8. These older operating systems still are available on separate internal hard drives. El Capitan resides on a 500 GB internal hard drive. All of my four 500 GB internal hard drives have a single partition. The installed graphics card is an ATI Radeon HD 5770 with 1024 MB of video RAM.
I have 22 GB of installed RAM. These are installed such that the first two DIMM slots (2 X 2 GB) provide 4 GB of system memory (Riser A). The next two DIMM slots (2 X 1 GB) provide the next 2 GB of system memory (Riser B). The remaining memory slots are populated with 4 GB DIMMs for a total available system memory of 22 GB. See attached file entitled: "About This Mac — Memory.png."
The 2 GB and 1 GB DIMMs have a huge finned aluminum heat sink physically attached to each. The 4 GB DIMMs have a sheet metal heat sink and no fins, so they have much lower surface area to reject heat. I was concerned that these newly purchased 4 GB DIMMs would not last as long as the older DIMMs with the large heat sinks... So hence the ordering based on thermal concerns and DIMM hardware life. I been using a free application called Macs Fan Control (v1.3.2) to monitor critical hardware temperatures. The application also provides the ability to adjust the minimum fan speed... This keeps my Mac Pro 1,1 running cool and quiet. Now that it has finally cooled down in California, DIMM modules 1 and 2 never experience temperatures higher than about 140 deg-F... Ambient air temperature is 68 deg-F. Fan lower bound set speeds vary between 800 and 1,000 RPM.
See attached file entitled: "Activity Monitor — Memory.png." The total system memory used is 3.6 GB. So in theory, the 4 GB DIMMs will seldom be used for my everyday operations... checking e-mail, viewing Internet streaming videos (Safari) and viewing locally stored videos (QuickTime player and iTunes).
See attached file entitled: "Activity Monitor — CPU.png." The CPU usage for my everyday operations is only 18 percent... or 82 percent idle.
You likely have some bad RAM. Try removing and replacing the DIMMs. Sometimes just reseating the DIMMs can fix the issue. Also, dust off each of the Riser cards using a can of compressed air, before installing DIMMs.
I hope this helps.