If all is well, your fan will be spinning at a good rate, and you can go into your BIOS display to see the actual fan speed. A good source is to tap straight from the Power Supply Unit (PSU) using one of the +5V pins from an unused disk drive molex connector. Everything is ready to go, you just need to apply a voltage (0 to 12V) to the speed control wire that you just release from the connector. One pin 4 is out, you can safely plug the socket into an Intel motherboard fan connector port. If it doesn't slide out easily, you aren't squeezing the retaining tab in the right spot. The Pin 4 wire will pull out of the socket. The simple trick is to use a small knife and squeeze the retaining pin on the Pin 4 plug connector. The Mac Case fan wants an actual voltage which would be on continuously at ~3v for the same quarter of full speed. So if the control is on for a 1/4 of a second, and is then off for 3/4, the fan would run at 1/4 of full speed. To vary the fan speed, the voltage is toggled on and off, with the duty cycle representing the fan speed. The problem is that on your motherboard, pin 4 uses the Intel fan control standard. Pin 4 - Speed control pin (1V = slow, 5V=moderate, 12V=jet engine fast) The pinout for the MacPro fan looks like the following: It's been a few years since I built my box using a 2009 MacPro case, but if memory serves, here's what you do:
That being said, you can get it run with just a few simple tricks. The fan in the MacPro case isn't really compatible with an Intel based motherboard. My apologies for posting to an old thread, but since you haven't received a reply, I'll provide a description for the benefit of others who may read this. Building a CustoMac Hackintosh: Buyer's Guide
0 kommentar(er)
