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IsaacFOK

macrumors member
Mar 16, 2023
42
16
I believe it to be a Sintech, bought from this seller: https://www.ebay.co.uk/itm/323975203337

IMG_3651.jpeg


IMG_3652.jpeg
 

mikas

macrumors 6502a
Sep 14, 2017
900
650
Finland
Hi Guys!

Could you please specify your equipment more closely (D300, D500/D700)? And what kind of set up is in use (HDMI, bluetooth input devices or not)?

I would be leaning towards HDMI or bluetooth problem with 474 firmware, or a combination of them, and it might be the Pitcairn D300 issue specifically too. It's a little bit different kind of a machine from D500/D700 because of the GPU. At least that's what I have been reading I think.

No panics with D300, 474.0.0.0. and a DP dispaly with wired kbd. Sleeps OK too. Uptime; one Day and a third.
 

mikas

macrumors 6502a
Sep 14, 2017
900
650
Finland
I put it to sleep, going myself too. After a minute or two it went full blast with the fan. Fortunately I heard that. It did not want to wake or lit the display or anything. Just the full blast of the fan. Had to shut down from power button.

So I would have to say it's the firmware update, for D300 6,1. They probably did it again, they failed. So sad to say this, and I really want to be proved wrong about this.

My other two (D500) are still ok, they both are at 470.0.0.0.0.
 

avro707

macrumors 68020
Dec 13, 2010
2,273
1,674
Hi Guys!

Could you please specify your equipment more closely (D300, D500/D700)? And what kind of set up is in use (HDMI, bluetooth input devices or not)?

I would be leaning towards HDMI or bluetooth problem with 474 firmware, or a combination of them, and it might be the Pitcairn D300 issue specifically too. It's a little bit different kind of a machine from D500/D700 because of the GPU. At least that's what I have been reading I think.

No panics with D300, 474.0.0.0. and a DP dispaly with wired kbd. Sleeps OK too. Uptime; one Day and a third.

Only standard wireless Apple mouse (older) and keyboard (current) connected, using a Dell 32” screen - nothing else fancy on mine. Seems to have no problem at all. I also have standard Apple 1TB SSD.
 

steve123

macrumors 65816
Aug 26, 2007
1,156
721
Could you please specify your equipment more closely (D300, D500/D700)? And what kind of set up is in use (HDMI, bluetooth input devices or not)?
Might be a good idea to track macOS version as well. My Samsung SSD issues were much worse when I used Monterey than they were with Big Sur. My setup at the moment is D500, TB display, LaCie 2Big, Big Sur 11.7.5, Kingston Fury Renegade SSD, Apple usb keyboard, Magic Mouse. Firmware 474.0.0.0.0
 

tsialex

Contributor
Jun 13, 2016
13,461
13,613
Today's Monterey 12.6.6 (21G633) beta1 have the same EFI version 474.0.0.0.0, no changes.
 
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mikas

macrumors 6502a
Sep 14, 2017
900
650
Finland
Zapped NVRAM 5 times, and was able to keep it going something like 4-5 days, without sleeping it. Then I tried a couple of short sleeps, and it survived those. Still not very convinced, but this might have been just a small culprit or something. At least I hope very much so.

Still won't update my other two 6,1 to 474.0.0.0., not for the time being, no. Too scared still.
 

tsialex

Contributor
Jun 13, 2016
13,461
13,613
won't update my other two 6,1 to 474.0.0.0., not for the time being, no. Too scared still.

Did you blocked Apple SUS servers IPs? If not, inevitably it will update the EFI Firmware with BigSur/Monterey, you wanting it or not since MacPro6,1 firmware updates are done automatically by Software Updates and not manually like MacPro5,1.
 

mikas

macrumors 6502a
Sep 14, 2017
900
650
Finland
I am not running software updates for now for a while with these. I mean it does ask for you to manually update the OS software still, there are no forced OS updates like in windows (which sucks)? We don't have forced updates in MacOS I hope (Monterey, Ventura..)? Or maybe it updates the firmware in some minor updates too requiring boot, is it so?

I know I will /and or/ maybe have to update some day, which kind of sucks because it can be flakey it seems. I'll do some tests in the background and let you all know. Keeping my fingers crossed about it.
 

tsialex

Contributor
Jun 13, 2016
13,461
13,613
I am not running software updates for now for a while with these. I mean it does ask for you to manually update the OS software still, there are no forced OS updates like in windows (which sucks)? We don't have forced updates in MacOS I hope (Monterey, Ventura..)? Or maybe it updates the firmware in some minor updates too requiring boot, is it so?

I know I will /and or/ maybe have to update some day, which kind of sucks because it can be flakey it seems. I'll do some tests in the background and let you all know. Keeping my fingers crossed about it.
You have to at least disable Software Updates or when you reboot to do the updates, the EFI firmware update will be also done.

Some people block all Apple SUS server IPs/domains, but this will also block XProtect updates/Safari updates/etc. I don't recommend doing it.
 

arw

macrumors 65816
Aug 31, 2010
1,239
983
If I want to install a new version of macOS but keep the current firmware, I temporarily use a minimalistic Open Core environment to spoof a higher firmware version during the update.

EDIT: I could have sworn it behaved that way in the past but 11.7.6 and 474.0.0.0.0 proved me wrong.
 
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tsialex

Contributor
Jun 13, 2016
13,461
13,613
If I want to install a new version of macOS but keep the current firmware, I temporarily use a minimalistic Open Core environment to spoof a higher firmware version during the update.

Not just while installing, but all time. When the not current version is detected, SoftwareUpdates will update it at the first reboot.
 
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tsialex

Contributor
Jun 13, 2016
13,461
13,613
Yesterday's Monterey 12.6.6 (21G644) beta3 have the same EFI version 474.0.0.0.0, no changes.

Code:
Hardware Overview:

  Model Name:	Mac Pro
  Model Identifier:	MacPro6,1
  Processor Name:	6-Core Intel Xeon E5
  Processor Speed:	3,5 GHz
  Number of Processors:	1
  Total Number of Cores:	6
  L2 Cache (per Core):	256 KB
  L3 Cache:	12 MB
  Hyper-Threading Technology:	Enabled
  Memory:	16 GB
  System Firmware Version:	474.0.0.0.0
  OS Loader Version:	540.120.3~22
  SMC Version (system):	2.20f18
  Panel Illumination Version:	1.4a6
 
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alye

macrumors newbie
Jun 1, 2023
2
0
Hello all, I've been looking to purchase a Mac Pro 6,1 and reading through the extensive threads on these machines the past few days.

What's the general consensus on stability with the latest firmware? A lot of the chatter seems to have quietened down with the last two updates.

Am I right in saying I should be looking for 2017 or newer hardware, with D500 GPU's?

Also tsialex, appreciate your input on these forums. You're a wealth of information!

Cheers,
 

arw

macrumors 65816
Aug 31, 2010
1,239
983
From what I gathered: With the current firmware, stability issues are no general problem anymore but few and specific to individual setups/environments. Although hardware-wise, D300 seems to be the one most prone to problems.
Both, my Early 2014 D300 and my Early 2018 D500 are equally 100% stable once they boot. But both sometimes suffer from no video signal when booting with opt-key pressed to select a different boot drive.
A younger production date is always preferred but I can‘t seem to find the info in which year (>2015?) Apple switched to the faster SSDs with double the speed (from ~700 to ~1200 MB/s) - in case you want to keep the stock one.
 
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MisterAndrew

macrumors 68030
Sep 15, 2015
2,895
2,390
Portland, Ore.
In my experience the D500 unit is the most stable. Both my D300 and D700 units had glitches, but D700 was more stable than D300. Try to get one with AppleCare+ if you can, so you can send it in for GPU replacement if necessary. Sometimes the CPU riser card has issues too. That part was replaced a few times on one of mine too.

The main issue with buying a 6,1 at this point is that there is only 1 1/2 years of official software support left. Hard to say if Apple will provide hardware repairs after that. Probably best to buy a refurbished M2 Mac mini in that price range.
 
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loby

macrumors 68000
Jul 1, 2010
1,885
1,517
Also tsialex, appreciate your input on these forums. You're a wealth of information!

Cheers,
Yes, we appreciate Tsialex and his input. It has been very valuable. Thanks a million!
 
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alye

macrumors newbie
Jun 1, 2023
2
0
In my experience the D500 unit is the most stable. Both my D300 and D700 units had glitches, but D700 was more stable than D300. Try to get one with AppleCare+ if you can, so you can send it in for GPU replacement if necessary. Sometimes the CPU riser card has issues too. That part was replaced a few times on one of mine too.

The main issue with buying a 6,1 at this point is that there is only 1 1/2 years of official software support left. Hard to say if Apple will provide hardware repairs after that. Probably best to buy a refurbished M2 Mac mini in that price range.
Cheers, appreciate the insight.

I'd happily move to an ARM Mac but when I last tested one for music production, I was getting audio stuttering with USB audio interfaces (triggered by memory pressure above ~50%). It's a reasonably well documented problem but seems hit and miss who is affected. Intel machines continue to work well. The Mac Pro 6,1 looked like a good interim solution but I think I'd want a spare on standby.
 

MisterAndrew

macrumors 68030
Sep 15, 2015
2,895
2,390
Portland, Ore.
Cheers, appreciate the insight.

I'd happily move to an ARM Mac but when I last tested one for music production, I was getting audio stuttering with USB audio interfaces (triggered by memory pressure above ~50%). It's a reasonably well documented problem but seems hit and miss who is affected. Intel machines continue to work well. The Mac Pro 6,1 looked like a good interim solution but I think I'd want a spare on standby.
Perhaps consider an iMac Pro? It looks like they are selling for about $1000 used now. They were still in the $3000 range when I was shopping for 6,1s.
 

avro707

macrumors 68020
Dec 13, 2010
2,273
1,674
Cheers, appreciate the insight.

I'd happily move to an ARM Mac but when I last tested one for music production, I was getting audio stuttering with USB audio interfaces (triggered by memory pressure above ~50%). It's a reasonably well documented problem but seems hit and miss who is affected. Intel machines continue to work well. The Mac Pro 6,1 looked like a good interim solution but I think I'd want a spare on standby.

How much can you afford? The Apple USA refurb store had some awesome 27" iMacs with very high specs and very reasonable prices. Some were 3.6ghz 10 core with quite high spec GPUs and reasonable RAM.
 
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