Contribute
Register

Any benefit in changing Mac identity from Mac Pro 3,1?

Status
Not open for further replies.
Joined
Nov 10, 2014
Messages
28
Motherboard
MSI Z97i Gaming Mini-ITX
CPU
i7 4790K
Graphics
GX970
Mac
  1. MacBook Pro
  2. Mac mini
Classic Mac
Mobile Phone
  1. Android
Might sound a stupid question but my recent build is defaults to a Mac Pro 3,1 as the type of Mac I have.

It's a fairly fast build with a 4790k i7 as well as a GTX970 GPU

So would be make a difference if I was to re identify the build as a 6,1?
 
Joined
Aug 17, 2012
Messages
479
Motherboard
GA-Z77X-UD5H
CPU
i5-3570K
Graphics
RX 570
Mac
  1. MacBook
Mobile Phone
  1. iOS
Might sound a stupid question but my recent build is defaults to a Mac Pro 3,1 as the type of Mac I have.

It's a fairly fast build with a 4790k i7 as well as a GTX970 GPU

So would be make a difference if I was to re identify the build as a 6,1?

of course, power management, sleep etc. could be improved.
 
Joined
May 13, 2014
Messages
168
Motherboard
Gigabyte Z390 Designare
CPU
i9-9900K
Graphics
Radeon VII
You'll probably be better off using iMac 14,2 for better Haswell power management. I have a Gigabyte H97-D3H myself and iMac 14,2 was recommended by Clover for me to use.

The reason people use Mac Pro 3,1 is because it's the most compatible and easiest to work with. Mac Pro 6,1 is better suited for X79/X99 boards.

As always with major changes, backup - backup - backup.
 
Joined
Aug 17, 2012
Messages
479
Motherboard
GA-Z77X-UD5H
CPU
i5-3570K
Graphics
RX 570
Mac
  1. MacBook
Mobile Phone
  1. iOS
I am using iMac 13,1 and you should use iMac14,1 / 14,2.

Better would be a Mac Mini because you don't use a discrete graphic card. But for the latest Mac Mini there are no SN# etc. available at the moment.
 
Joined
Sep 2, 2014
Messages
113
Motherboard
GA-Z87M-D3H
CPU
i7 4790
Graphics
intel HD4600
Mac
Classic Mac
Mobile Phone
  1. Android
  2. iOS
I am using iMac 13,1 and you should use iMac14,1 / 14,2.

Better would be a Mac Mini because you don't use a discrete graphic card. But for the latest Mac Mini there are no SN# etc. available at the moment.

I changed the def to imac 14.2 and i noticed 2 things: first i noticed that the bar under the apple logo on boot screen is white and not black as it has to be, but this happens only after the glitch which the intel hd4600 has. Another thing is that just after the pc booted up when any sound plays, like trashcan when you delete something in it, the speakers do a sound like a "pop" really loud, this happens to me also in the boot screen but it has always did to me
 
Joined
Sep 19, 2010
Messages
589
Motherboard
Asus Z87 Maximus Gene VI
CPU
i7-4790K
Graphics
Vega 64
Mac
  1. iMac
Mobile Phone
  1. iOS
I changed the def to imac 14.2 and i noticed 2 things: first i noticed that the bar under the apple logo on boot screen is white and not black as it has to be, but this happens only after the glitch which the intel hd4600 has. Another thing is that just after the pc booted up when any sound plays, like trashcan when you delete something in it, the speakers do a sound like a "pop" really loud, this happens to me also in the boot screen but it has always did to me


I too was getting that popping noise when audio used to wake up. The workaround I used was to insulation app called antipop.
 
Joined
Nov 29, 2010
Messages
138
Motherboard
Gigabyte H110MA
CPU
i3-6100
Graphics
AMD R9 280X
Mobile Phone
  1. iOS
It's been my experience that the iMac 13,x system definitions prevent both speed stepping and turbo boost, at least with my Ivy system. I'm running a mildly overlocked (4.5GHz) i7-3770K in a Z77X-UD5H, and I only get speed stepping and turbo boost using a Sandy Bridge SMBIOS, iMac 12,2. Geekbench score is also much higher with iMac 12,2 smbios.plist, which is to be expected when the CPU is allowed to ramp up to 4.5Ghz on a single core and 4.4GHs when all four cores kick in. My system Geekbenches at around 13-14K as an iMac 13,2, and 16-17K as an iMac 12,2. I've noticed no other system behavior differences whatsoever between the two system definitions, so I run it as an iMac 12,2 even though that's technically a Sandy def and my CPU's Ivy.

If you've got an unlocked Ivy i5 or i7 and are using an iMac 13,x smbios.plist, you might try iMac 12,2 and see if your system gets faster when pushed hard and also consumes less power when idle.
 
Joined
Nov 10, 2014
Messages
28
Motherboard
MSI Z97i Gaming Mini-ITX
CPU
i7 4790K
Graphics
GX970
Mac
  1. MacBook Pro
  2. Mac mini
Classic Mac
Mobile Phone
  1. Android
It's been my experience that the iMac 13,x system definitions prevent both speed stepping and turbo boost, at least with my Ivy system. I'm running a mildly overlocked (4.5GHz) i7-3770K in a Z77X-UD5H, and I only get speed stepping and turbo boost using a Sandy Bridge SMBIOS, iMac 12,2. Geekbench score is also much higher with iMac 12,2 smbios.plist, which is to be expected when the CPU is allowed to ramp up to 4.5Ghz on a single core and 4.4GHs when all four cores kick in. My system Geekbenches at around 13-14K as an iMac 13,2, and 16-17K as an iMac 12,2. I've noticed no other system behavior differences whatsoever between the two system definitions, so I run it as an iMac 12,2 even though that's technically a Sandy def and my CPU's Ivy.

If you've got an unlocked Ivy i5 or i7 and are using an iMac 13,x smbios.plist, you might try iMac 12,2 and see if your system gets faster when pushed hard and also consumes less power when idle.

I have to agree. Setting my Mac to a Mac Pro 6,1 resulted in my computer losing network connection on wakeup from sleep.

Setting to iMac 12,2 gave me far greater Geekbench as well as Cinebench results.

Much happier with the resultant build now. Not even sure I wish to overclock as the benchmarks are so high
 
Joined
Oct 15, 2014
Messages
163
Motherboard
GA-Z97X-GAMING-GT
CPU
i7-4790k 4.4ghz
Graphics
Nvidia GeForce GTX 970 SC
Mac
  1. Mac Pro
Mobile Phone
  1. iOS
I'm curious, is switching profiles as easy as clicking the box in multibeast and loading it? Do you have to do anything else (other than a back up incase something goes wrong).

I can't imagine going through all the profiles hunting for the best benchmarks is good, but I could be wrong and improved performance is always welcome
 
Status
Not open for further replies.
Top