Mac pro power supply connector j1 j2 j3 how to#
Mac pro power supply connector j1 j2 j3 pdf#

power pinout)Р”Р‡T: my power supply actually has two of those 4-pin CPU connectors as one РІР‚СљbunchРІР‚Сњ, nearly joined all the way to the connectors. The power distribution was setup to split the the 12V power across multiple power supply rails.Р”В«oth J9 and J10 use the CPU-style pin-out (as opposed to the PCIe add-in card/GPU 12V aux. The 8 pin connector (J9) gets 12V to slots J3, J5, and J7 and the on-board circuitry. The 4 pin connector (J10) gets 12V to slots J3, J5, and J7. The main connector (J13) gets 12V to slots J1 and J2. The 8 pin connector (J9) supplies power to the on-board circuitry (hence the red power LED being lit). Sorry to be dumb about this.I don't normally build PCs from scratch, much less specialized boxes like this!Р”В¬yclone: The issue is that he needs to have a power supply connected to the 8 pin aux. I have tried jumpering J21 and J22 as well to engage the resistors, but this doesnРІР‚в„ўt appear to change the behavior IРІР‚в„ўm seeing.Р”Р„ny idea what I should be connecting at J9? Table 3-3 on p11 suggests it's pretty important, as it supplies 12V to the baseboard. A photo on your site shows what appears to be an 8-pin power lead connecting to J9, but my standard ATX power supply doesnРІР‚в„ўt appear to have a matching connectionРІР‚В¦unless this is an *input* PCIe aux feed for J11 (I *do* have some 6+2 PCIe connectors on my PS).

I believe this might also be referred to as РІР‚Сљ12V-3РІР‚Сњ. I have the main power supply 24-pin feed connected at J13, as well as the 4-pin processor feed at J10.I know that J11 is for PCIe card aux power (such as for a GPU), but I can find no mention of J9 anywhere. When connecting the 427 to the host via the 426, I get a red power LED on the 427 board and my 10GbE card shows power, but I get no green link light on the back, and no host visibility of expansion cards connected to the 427. I am configuring an installation of a PCIe2-427 & PCIe2-427 pair in a custom enclosure.

Mac pro power supply connector j1 j2 j3 how to#

PCIe2-2707 User's Manual - Cyclone MicrosystemsР”Вo you have any suggestions or guidance for how to connect? I have posed this question to Cyclone, but not sure if they'll want to help me, since I'm not buying a $3K turnkey system. Referencing the diagram on p16 of the 2707 user manual here:

Mac pro power supply connector j1 j2 j3 pdf#

Your PDF above is a Dropbox public link, which no longer works, so I'm unable to refer to your documentation.but I wondered if this might be obvious to you. I'm having trouble getting the chassis to connect and show up, but I think it is mainly down to getting the power connections right on the 427 board.

Also got a 600W PowerSpec power supply from Micro Center. I got a basic case- not a fancy one like you, but I mainly wanted to keep it small and inexpensive. The x16 cable was actually the hardest thing to find w/o paying a ridiculous $300 for one. Hey Hoeveler! Well, it took seemingly forever, but I finally found and acquired a PCIe2-427 backplane and accompanying PCIe2-426 HBA.