What are the option when the firmware upgrade crashes or fails half way thru and the Mac Pro 4,1 is rendered not useable? Autocad lt 2018 for dummies. I have done about 30 of these, first one that crashed half way thru upgrade and now the machine seems completely unresponsive This is the problem I've encountered on 2 separate occasions.

Matched Pair 6 Core X5690 3.46GHz XEON Processors 2010,2012 Apple Mac Pro 5,1 Upgrade Kit This is the fastest CPU upgrade kit for the 2009, 20 10, 2011, and 2012 Apple Mac Pro 5.1. This kit comes with everything you will need to turn your Mac Pro 4,1 or 5.1 into a Twelve Core 3.46GHz system. Oexl707b Unbranded Generic Snap On Long Box End 12pt Combination Wrench 7pc Stanard 3 8 To 3 4 (27.6% similar) They appear unused. Please check out pics feel free to ask any questions you may have comes with pak432321 red organizer tray.

I believe the process fails rendering the EFI corrupted. I now have 2 junk backplane boards sitting collecting dust from a problem I've never had with the 30 or so that I've also successfully upgraded myself. I'm having issues trying to update to 5,1 from 4,1. I currently lack an EFI graphics card so I am doing this blind, running dual titans.

Everything seems to run as it should but just doesn't say 5,1. I've done PRAM resets. Have B07 boot rom.

Run the utility and follow the prompts. I shut the Mac and wait a few seconds. Hit lower button and hold until the light rapidly starts to blink then let go. A couple seconds I hear the long tone.

The a couple seconds later I hear the Apple Bong and it seems(doing this blind) to be updating the firmware as it will restart automaticly after a few minutes. I boot back to desktop and check system profiler and nothing has changed. I might have an Apple GPU again soon so maybe I can see what's going on. I'm so anxious to get my 3690 installed thanks for any help or suggestions.

I don't remember reading about hearing the apple bong after the long tone so I'm wondering if it should be restarting after the bong? MacEFIRom: Thanks for breathing incredible new life into my Mac Pro 2009!

The new CPUs I selected have 50% more cores ( 12 vs 8 ), and every individual core is ~25% faster. In raw power, that's 8x2.26 GHz = 18.08 GHz total (before upgrade), and 12x2.8 GHz = 33.6 GHz total (after upgrade). The difference in height between the non-IHS CPUs and the normal CPUs with IHS attached is 2.24 mm (0.088 inch).

I found some M4 x 9 washers that I sorted thru and found groups of 3 that were that height, +/- 0.03 mm (about 0.001 inch). Thanks again to MacEFIRom for the fantastic upgrade! My Mac Pro 2009 is now a 2012 model with performance that exceeds 2 of the 3 new Mac Pro 2013s!

This combines all info from over 12 hours of reading every reply in this thread + other forums + various articles + having lots of hardware and electrical engineering experience + not being an idiot. I hope to save other people's time and to help them not be idiots either. Just follow the checklists above and enjoy! « Last Edit: January 20, 2014, 10:08:19 PM by aitte » Logged. Got my 2009 12-core working!!!

I primarily used Pindelski's write up and many macrumors threads and am indebted for all the advice. The mechanic side of me wanted to use washers but in the end I counted my turns as he suggestedbeing very conservative and actually undertightening initially. I agree with the above-- take everyone's advice with a grain of salt. I used a different (powered) usb 3 card and didn't need to disassemble the processor cage to install the airport card. If you've worked inside an iMac or Mac Mini.it's easy. I tried the Apricorn card many use but mine was DOA and I sent it back to egghead.

I'll try that again later as I'm OK, for now, booting my SSD off bay #1. W = QPI LINKS: 1 (for Single-CPU systems).

TDP of 130 watts and higher. These are the warmest Xeons made and they are designed to be used in desktop workstations and for single-CPU pedestal servers that have room for better cooling and power supplies than an average 1U or 2U rack server. Apple uses these in their single-CPU systems, since they're the only type available with 1 QPI link.

This is partially wrong. There are W Xeons with 2 QPI links: W5560, W5570, W5580 and W5590. Nah man, it's not wrong.

The CPUs you list are the 45 nanometer previous generation Nehalems from 2009, the 55xx series. They produce more heat, have less clock speed, and are only available in quad-core at best. The CPUs that we are interested in is the 32 nanometer generation Westmeres from 2010, the 56xx series. They are faster, produce less heat, available in six-cores, have AES-NI encryption built in, and follow the naming rules I explained. Got my 2009 12-core working!!! I primarily used Pindelski's write up and many macrumors threads and am indebted for all the advice.