Mac Pro 4,1 (Early 2009) mainboards compatibility for replacement

[ammoune78]

Hi,
I have a Mac Pro that actually have a faulty second logic Board that have a circuit that was pulled off by mistake, it's working but makes cpu board fans running at full speed. Now according to the original board of the Mac Pro, that came with parts number: *J595100UJBH7A* 939-0459 CHINA & *J595100KWCU7A* 631-1271 CHINA with CPU 2x 8Cores board part number *J594700SYBXZA* 939-0505 CHINA, what are the logic boards that can be purchased, without doing any CPU's fan noise and full spinning please. Also, are this one: *C07017702XADCVKA0* 631-1474 &. *C070177034VDD4GA2* 939-1062 compatible.
Thanks

 

[mattferg]

Hi,
I have a Mac Pro that actually have a faulty second logic Board that have a circuit that was pulled off by mistake, it's working but makes cpu board fans running at full speed. Now according to the original board of the Mac Pro, that came with parts number: *J595100UJBH7A* 939-0459 CHINA & *J595100KWCU7A* 631-1271 CHINA with CPU 2x 8Cores board part number *J594700SYBXZA* 939-0505 CHINA, what are the logic boards that can be purchased, without doing any CPU's fan noise and full spinning please. Also, are this one: *C07017702XADCVKA0* 631-1474 &. *C070177034VDD4GA2* 939-1062 compatible.
Thanks

Where are you based? If the logic board is just missing a component/had it ripped off the board, Rossman Repair Group in NY can fix that 100%.

 

[ammoune78]

Morocco, and unfortunately it will maybe cost me more than the price of a working used one.
I just want the list of the compatible parts number with it or at least the EEE that i have to find.

 

[DearthnVader]

Where are you based? If the logic board is just missing a component/had it ripped off the board, Rossman Repair Group in NY can fix that 100%.

I don't understand why the cost of global shipping has gotten so high.

 

[tsialex]

Hi,
I have a Mac Pro that actually have a faulty second logic Board that have a circuit that was pulled off by mistake, it's working but makes cpu board fans running at full speed. Now according to the original board of the Mac Pro, that came with parts number: *J595100UJBH7A* 939-0459 CHINA & *J595100KWCU7A* 631-1271 CHINA with CPU 2x 8Cores board part number *J594700SYBXZA* 939-0505 CHINA, what are the logic boards that can be purchased, without doing any CPU's fan noise and full spinning please. Also, are this one: *C07017702XADCVKA0* 631-1474 &. *C070177034VDD4GA2* 939-1062 compatible.
Thanks

With the LBSN/MLB label, the first alphanumerical is always the Logic Board Serial Number, and the second (numerical) is the Part Number.

So, J595100UJBH7A, J595100KWCU7A, C07017702XADCVKA0, C070177034VDD4GA2 are the serial numbers for the backplanes. The part numbers are 939-0459, 631-1271, 939-0505, 631-1474, 939-1062.

Btw, NEVER POST LBSN online, it's more important than the SSN for identifying a Mac.

 

[ammoune78]

Thanks @tsialex , i've bought a board with 1LT EEE code, and 630-9399 parts number. This Mac Pro gives me a headache, yesterday it was booting, with no fan noise, and today, no cpu fans running, no startup chime, no video output, and from time to time at startup it continuously queer blinking white on the power led. Now no blinking but same thing, no startup chime, no video output and no cpu fans running.

And I still can't find the exact screwing for that heatsinks!

Crazy

 

[Macbookprodude]

Hello speaking of boards, is there a way to change the serial number from a 2009 to a 2010 ? Back in 2009-2010 I bought the backplane and processor boards for the 2010 and removed the 2009 boards.. If I want to run Mojave, will the serial cause it to not run ? Is there a way to change the serial ?

 

[tsialex]

Thanks @tsialex , i've bought a board with 1LT EEE code, and 630-9399 parts number. This Mac Pro gives me a headache, yesterday it was booting, with no fan noise, and today, no cpu fans running, no startup chime, no video output, and from time to time at startup it continuously queer blinking white on the power led. Now no blinking but same thing, no startup chime, no video output and no cpu fans running.

And I still can't find the exact screwing for that heatsinks!

Crazy

You can have a hardware problem or a BootROM problem. This is a new board or the one I already did the BootROM?
[doublepost=1544175799][/doublepost]

Hello speaking of boards, is there a way to change the serial number from a 2009 to a 2010 ?

Depends on how it was changed, if the person just dumped your 2009 BootROM and flashed the 2010 board, will be complicated to get it working since the LBSN_BD sector will be the 2009 one.

Back in 2009-2010 I bought the backplane and processor boards for the 2010 and removed the 2009 boards.. If I want to run Mojave, will the serial cause it to not run ?

No, Mojave don't check for the serial, just if its a supported Mac or not. Any Mac Pro 2009 upgraded to MP5,1 firmware with a supported Metal GPU can run Mojave.

Is there a way to change the serial ?

Like I said, depends.

 

[ammoune78]

You can have a hardware problem or a BootROM problem. This is a new board or the one I already did the BootROM?
[doublepost=1544175799][/doublepost]

Not the new board but the one you already did the BootROM! I’m waiting for the new one, but it’s same EEE code 1LT. But i suspect that it could be the processor board that the problem came from? Because i changed the heatsinks but same result, no Fan spinning at all.

 

[tsialex]

Not the new board but the one you already did the BootROM! I’m waiting for the new one, but it’s same EEE code 1LT. But i suspect that it could be the processor board that the problem came from? Because i changed the heatsinks but same result, no Fan spinning at all.

Ok, dump the BootROM immediately after you install the new one. Do not upgrade the firmware, this is important, people are bricking doing the initial firmware upgrades.

You will need a disk with El Capitan to do it, Sierra on wards needs firmware upgrades.

 

[Macbookprodude]

You can have a hardware problem or a BootROM problem. This is a new board or the one I already did the BootROM?
[doublepost=1544175799][/doublepost]

Depends on how it was changed, if the person just dumped your 2009 BootROM and flashed the 2010 board, will be complicated to get it working since the LBSN_BD sector will be the 2009 one.

No, Mojave don't check for the serial, just if its a supported Mac or not. Any Mac Pro 2009 upgraded to MP5,1 firmware with a supported Metal GPU can run Mojave.

Like I said, depends.

Cool, thanks man.. Now I just need a metal video card. In Ukraine, these things are expensive.. What basic metal card can you recommend ?

 

[ammoune78]

Ok, dump the BootROM immediately after you install the new one. Do not upgrade the firmware, this is important, people are bricking doing the initial firmware upgrades.

You will need a disk with El Capitan to do it, Sierra on wards needs firmware upgrades.

Ok, once the new board will be installed i‘ll install a fresh copy of El Capitan, then do a dump! Yes, i did mistake by directly flashing the firmware from Sierra, and from that moment, i remember that cpu fans came to spinning fully with noise.

 

[tsialex]

Cool, thanks man.. Now I just need a metal video card. In Ukraine, these things are expensive.. What basic metal card can you recommend ?

If you need boot screens, the best bet is to find a PC GTX 680 and flash yourself, 5' job with Windows. Usually you only find high priced already flashed ones, but if you have patience, you will find a PC user selling one on the cheap.

If you don't need boot screens, go for a RX-460/560, but keep an eye open for RX-580, from around 200 in October, you can get one on eBay for around $140.
[doublepost=1544379907][/doublepost]

Ok, once the new board will be installed i‘ll install a fresh copy of El Capitan, then do a dump! Yes, i did mistake by directly flashing the firmware from Sierra, and from that moment, i remember that cpu fans came to spinning fully with noise.

After you dumped, PM me it on the same PM thread, I'll check it and upgrade it for you.