Mac Pro late 2013 laggy issues

Heroic Junkman wrote:

Wow I didn't even think about ram pairing. Thanks! However, I think I have bigger problems than that.. unless lack of ram pairing drives your cpu to 15% capacity.

Lack of RAM pairing won't affect the system to a noticeable extent.

Maybe that is it.. although I did take care to get the right part. It did work for a good year or so before troubles began. What kind of symptoms typically arise with non-crucial/OWC?

Symptoms can be varied and intermittent.

You can try running the Memtest86 memory test. You can create a bootable Memtest86 USB drive using Etcher (Mac/Windows/Linux). Option Boot the USB drive and select the orange icon labeled "EFI". Even if no errors are encountered doesn't necessarily mean the memory is good or compatible.

Where did you get the replacement memory? Macs are very picky about the memory used. The most reliable sources for best compatibility is purchasing memory directly from either Crucial or OWC. You need to use the exact part numbers suggested by the tools on their respective websites to be guaranteed compatible memory.

What happens when you by them from folks who don't know what they are selling, is that you get really nice DIMMs ...

... that don't happen to work in your specific computer.

Memtest will never detect a RAM error in that model Mac. Mac Pro late 2013 with Xeon processor needs special treatment for RAM problems, because it features Error Correcting Code RAM.

User Tip: Mac Pro and Error Correcting Code RAM Memory

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Yeah I ordered the 2011 because they cut the 2012 to 2 fans then who knows way, but Macs are all undercooled.

1. I would say yes, my iMac has been as shown above for years. Right speed will be a trade off, the cooler the Mac runs the longer it'll last, some worry about the fans wearing out, but I think if that is a problem it'd be far cheaper replacing fans than the CPU. GPU. or the entire Mac
2. If the CPU heats up it'll slow down, CPUs only run full speed when cool enough, I'm not positive but I think that is built into the Micro code by Intel.

OOPs yeah GPU, * you\re correct, once the heat damage is done 65° may be way to high...

Thanks again Grant. :)

Nothing stands out in the report, but of late many MacPro6,1 are starting to have GOU failures, mostly due to heat.

What temperatures does this App report? Especially the GPU & CPU.

This App can be used to speed up the fans, all my iMacs would be dead without it.

Never ever ever drop fan speeds below the speed that the Mac itself is calling for.

MacFansControl…

https://www.crystalidea.com/macs-fan-control

The only obvious "boat anchor" is Google Chrome, a notorious resource hog. If you could tradition to faster and less resource hungry Browser that has not been neglected, such as Firefox or Safari, your computer would perform better.

You are also running ONE DIMM, in a machine that would interleave if there were two. You are not short of RAM, but another matched size module in an adjacent slot would speed up your Mac Pro a bit.