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Mac Pro 2013 won't render in the Winter - condensation problems!!

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Please just pull the DIMMS and try to boot from each one individually. You can have this solved in 10 minutes.

Discharge yourself on a grounded (i.e., plugged-in) metallic object beforehand (a big classic mac pro works great for this.) Don't do anything dumb like rub your feet across the carpet. Google "how to discharge static electricity before opening a computer case" if it helps. If the environment is really that humid you aren't likely charged up with piles of static electricity.

This thread is so bizarre, never expected to learn about England's heating and dehumidification practices in the process of diagnosing a bad RAM stick.
 
It's behaving so erratically that it's going back to the service engineers to sort out - that's what a warranty is for, and if they can't sort it they can replace it or give me my money back
 
flyingfoxuk said:
It's behaving so erratically that it's going back to the service engineers to sort out - that's what a warranty is for, and if they can't sort it they can replace it or give me my money back
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You're completely right of course and it's crazy that the machine was sent off and returned without them testing the memory (the first thing you'd do when looking at a system crashing under load...) but it would literally take a few minutes, it's far easier to send a dimm in the post for replacement and you could do some work in the meantime. The last comment in the previous post says it all :)
 
They've messed around with it so much already that they're going to have to take it in - sort out the issue and test it to make sure it doesn't reoccur - I've wasted too much time doing their job for them as it is
 
flyingfoxuk said:
They've messed around with it so much already that they're going to have to take it in - sort out the issue and test it to make sure it doesn't reoccur - I've wasted too much time doing their job for them as it is
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100% agree with you. Hats off for stepping out of your comfort zone, making a Macrumors account and trying to solve it on your own. But, I would have to agree with you on sending it out to the professionals. No sense breaking stuff in there you shouldn't have to touch anyway.

At this point, I would call them up, explain what happened, then if they try to take you for the run-around be a little more pushy with them.

If all else fails, you could always call corporate.
 
Nyy8 said:
100% agree with you. Hats off for stepping out of your comfort zone, making a Macrumors account and trying to solve it on your own. But, I would have to agree with you on sending it out to the professionals. No sense breaking stuff in there you shouldn't have to touch anyway.

At this point, I would call them up, explain what happened, then if they try to take you for the run-around be a little more pushy with them.

If all else fails, you could always call corporate.
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This really isn't my forte - I have with previous macs fitted the odd PCI card and swapped out a worn out superdrive- but I know my limitations. I've amassed a whole bunch of log files from the various kernel panics to supply to the engineers which should help them to trace the fault - they've got to mean something to someone!
 
Mac Pro has been with the engineer for last few days - confirmed a Ram problem, reseated and tested it all, then left the machine testing over the weekend - come this morning the machine won't boot again!! I'm really glad that it's not just me who is seeing these problems, waiting to hear from them later today to see if they have got to the bottom of the trouble, but it certainly doesn't appear to be a simple fix!
 
Does the UK/EU have a "lemon law"?

flyingfoxuk said:
Mac Pro has been with the engineer for last few days - confirmed a Ram problem, reseated and tested it all, then left the machine testing over the weekend - come this morning the machine won't boot again!! I'm really glad that it's not just me who is seeing these problems, waiting to hear from them later today to see if they have got to the bottom of the trouble, but it certainly doesn't appear to be a simple fix!
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Some consumer protection statutes in the US have what is commonly called a "lemon law". ( http://en.wikipedia.org/wiki/Lemon_law )

If a supplier fails to fix a problem in two or three attempts, they must replace the item with a new one.
 
I once had a very well specced out PC system that would work well until under pressure / heavy workload and then it would either shut down or blue screen. Turned out to be a one ram stick but would only show its weakness when it was really under stress. Turned out the "extra memory" I had added just wasn't up to the heavier stress some of what I was doing put it under (v high end gaming).

Caused nothing but problems when the PC was being fault diagnosed as it would behave for 95% of the time.
 
You might want to look into the Apple System Profiler, too. Nowadays it's called System Information. Have a look at the "Memory" and the "Diagnostic" subsection under "Hardware".

If you're lucky, your Mac has logged some error messages there. E.g. if a single bit memory error occurs, this can be compensated through the means of ECC. Nevertheless, even a single bit error should be logged there. Usually a lot of single bit errors occur before an unrecoverable multi bit error happens (and crashes your system). There might be a chance that you can get a hint from there what's going on in your Mac Pro.
 
After speaking to the engineer a little while ago he's told me the new power supply they fitted less than 2 weeks ago has blown!! They've ordered another one and can't do anything else till that's fitted and try and find the cause of the problem. I told them how seriously pissed off I am with this situation - it's now 30 days into the problem and things are no further along than they were at the start. I've told them I want either a new machine or a full refund- the machine is under warranty - if I don't get any joy from them in the next few days I'm calling my credit card to try and recover the money from that end - it really is beyond a joke at this stage. They say because the fault is intermittent they can't provide any timescale for sorting the problem out - doesn't help me though!
 
flyingfoxuk said:
After speaking to the engineer a little while ago he's told me the new power supply they fitted less than 2 weeks ago has blown!! They've ordered another one and can't do anything else till that's fitted and try and find the cause of the problem. I told them how seriously pissed off I am with this situation - it's now 30 days into the problem and things are no further along than they were at the start. I've told them I want either a new machine or a full refund- the machine is under warranty - if I don't get any joy from them in the next few days I'm calling my credit card to try and recover the money from that end - it really is beyond a joke at this stage. They say because the fault is intermittent they can't provide any timescale for sorting the problem out - doesn't help me though!
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You should point out how much time and effort they're expending on this issue. I don't know how easy it would be for them to get you a replacement, but if all they have to do is make a call then it seems like they'll come out ahead by doing just that and ending the non-billable hours they're probably putting into it.
 
BrianBaughn said:
You should point out how much time and effort they're expending on this issue. I don't know how easy it would be for them to get you a replacement, but if all they have to do is make a call then it seems like they'll come out ahead by doing just that and ending the non-billable hours they're probably putting into it.
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I'd have thought so, but it seems getting a replacement out of them is like pulling teeth - hard work!
 
Well, if they have the item and you paid on a credit card, I would simply call the CC company and dispute the charge. They have failed to provide you with a working as advertised product.
 
flyingfoxuk said:
I'd have thought so, but it seems getting a replacement out of them is like pulling teeth - hard work!
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Probably it's best that you get a refund thru your credit card. I think you've been patient with them and already waited long enough. If I read your post correctly, you've returned the new Mac Pro 3 times already without concrete solutions. I've learned my lesson in the past and hate downtimes and I've lost a client on deadlines. Now I maintain 2 machines for backup plans.
 
Just an update on this ongoing saga.

The machine has been with the service team for the last few weeks and following Apple's advice they have replaced the power supply twice, AC inlet, Logic Board, Ram, Graphics and several other parts and the machine is still intermittently failing. Just spoken to head of repairs who now wants to replace the machine, they're stumped and haven't seen anything like this in 20 years! - obviously they want Apple to foot the bill for the repair so asked me to call Apple to push for a replacement on this. Got put through to a senior advisor who is now talking things through with Jigsaw Systems and hopefully going to get this problem resolved finally!

For the last couple of weeks I have finally got a loaner machine out of Jigsaw to get back to work which is something, but would love to put this problem behind me!
 
flyingfoxuk said:
Just an update on this ongoing saga.

The machine has been with the service team for the last few weeks and following Apple's advice they have replaced the power supply twice, AC inlet, Logic Board, Ram, Graphics and several other parts and the machine is still intermittently failing. Just spoken to head of repairs who now wants to replace the machine, they're stumped and haven't seen anything like this in 20 years! - obviously they want Apple to foot the bill for the repair so asked me to call Apple to push for a replacement on this. Got put through to a senior advisor who is now talking things through with Jigsaw Systems and hopefully going to get this problem resolved finally!

For the last couple of weeks I have finally got a loaner machine out of Jigsaw to get back to work which is something, but would love to put this problem behind me!
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Thanks for the update. Just curious, is the loaner a nMP also?
 
Well they replaced most of them and it's still faulty - tomorrow it's being shipped off to Apple for them to get to the bottom of the fault, but a replacement unit is going to be sent out which is all that really matters
 
Am I the only one amused that the vendor's name is Jigsaw Systems? It fits so well with the support they've provided so far.
 
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