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Post by drmodean on Jun 18, 2010 18:58:45 GMT
Aqua is absolutely right about the Mac fans being too much for motherboards and really... too much for hack pros. I'm the cheapest person on the planet and really don't want to purchase new fans unless I have to. Why are the fans "too much?" Is it power consumption? |
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Post by aquamac on Jun 19, 2010 8:56:37 GMT
Yes, They will burn out your motherboard header. Fine to be used with power supply though.
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Post by blackknight on Jun 21, 2010 3:38:52 GMT
You could theoretically run one fan (maybe two, but that's REALLY asking for trouble) on the CPU fan header (I think this one provides more current than the others, but I don't really know), but without proper speed control from the motherboard, there's no need to. If you want to use the Mac Pro fans, just do what Aqua and I have suggested and hook them up using 12V on the power wire and 3.3V on the control wire (diagram posted previously). This runs them at a fixed ~1000RPM and are pretty quiet while still moving lots of air. The fans are just so inefficient compared to the Scythe fans I posted.
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Post by HackJoe on Jul 14, 2010 17:59:59 GMT
I haven't been able to work on my build much due to work obligations, it sucks cos i fear my 5870 will be obsolete before it find its i7 counterpart and gets put under water.  ...  ... This is my ATX-ATX extension cable which I've had since the first Mac Pro conversion build. I stripped it back and braided the lot, it's taken me 5 hours! tomorrow I'll be braiding the actual ATX cable from the SilverStone ST1000P.  (Back from 07) J. |
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Post by blackknight on Jul 15, 2010 3:00:03 GMT
Beautiful ATX cable extension. I'd love to single-braid all of my cables, but it seems to defeat the purpose of braiding in the first place. Still it looks great.
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Post by tezzarist on Jul 17, 2010 13:35:40 GMT
Hey guys,
I have read all 40ish pages of this thread so far and the amount of different front panel, sata and power diagrams and instructions is confusing.
I have also read some of the insanelymac thread that contradict ones on this thread.
Can someone please help me?
I am looking for diagrams for the following please:
1 - Mac Pro Front Panel
I have the copyright 2006 model
Internal connectors: sata(usb), 8 pin power, 5 pin audio, 3 pin power button, firewire 800
External connectors:
Audio, 2x USB, FW 400, FW 800
2 - SATA cables
Showing the wires for the mac cable (which is split in 2 for each port) and a standard sata cable wires and how to connect them
3 - SATA Power cables
Showing the pin outs for the 8 pin apple connector and how to connect them to with a standard sata power connector (5 wire) or oldschool drive connector (4 pin)
I know I am asking a lot, but I really want to get this right.
Cheers
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Post by aquamac on Jul 17, 2010 18:03:28 GMT
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Post by reddrag0n on Jul 17, 2010 18:53:17 GMT
Don't mind my ignorance, but why does the USB header suddenly turn into a SATA header? Does the SATA read the input and outputs and turns it into another couple of USB ports? If so, can this be used on other machines also, or is this just a Mac thing?
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Post by aquamac on Jul 17, 2010 21:49:13 GMT
No, it's just Apple did a weird thing, utilising a sata cable in the mac pro for USB. Totally unconnected to sata!
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Post by tezzarist on Jul 17, 2010 22:54:15 GMT
You need to look at this:    Ok sorry to be annoying but this is where I get worried about the power connector pinouts... Please check this post on the InsanelyMac forum as I am a bit worried, I do want to be able to use the firewire 800 when I get a PCI-e card to fit www.insanelymac.com/forum/index.php?showtopic=156973&hl=diagram# Post 12 Also do you guys have the diagram to connect the hard drive bay sata cables to normal sata connectors? Another question... if your diagram is correct and the other guy is just being silly, could the 8 pin power be connected to a sata power cable? If I am correct it looks like you get 3.3v(Orange), 5v(Red) and 12v(Yellow) from this connector. |
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Post by aquamac on Jul 18, 2010 7:00:25 GMT
I had a quick look at the link you supplied, maybe Apple changed something on later cases. The diagrams above certainly worked for me on 2 Mac Pro cases that I used. Also I never heard of anyone frying their FW chips as suggested. I would not connect the 8 pin power through a sata cable as I think it would not handle the current. Both Jedric & Pirlou are members here too. Maybe worth contacting one of them just to clarify.
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Post by blackknight on Jul 20, 2010 6:32:43 GMT
I used a SATA power extension cable and soldered the 8-pin connector to it and am using it without issue on my case. I'm not running any wires from the ATX power cable. There shouldn't be that much current going through the front panel, right Aqua? I think it just needs the voltages to be correct. That said, I'm using USB, front audio, power led/switch, and not using firewire at all. I can't imagine firewire needing more current than a sata cable can provide though as usually it's a HDD that's connected to the firewire port.
PS
Just to let you know, I've been using 5 HDDs (1x10000RPM, 3x7200RPM, 1x5900RPM all SATA) on the same PSU. No overloading issues.
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Post by blackknight on Jul 20, 2010 6:40:50 GMT
As far as the SATA HDD cables, this should be self explanatory. You can look at Aqua's diagram above (for the front USB) to see what a SATA data cable looks like inside the insulation and cut the ends off a regular cable and the Mac cable and wire them up straight. For power, you can look at a regular SATA power connector and see what color the wires are in order at the back and compare to the mac cable. Then either wire them up individually to SATA plugs on your PSU, or combine them with the power wires from the other three drives and wire them color-to-color. I used a SATA power extension cable and cut the drive end off and soldered the wires to the mac cable so I didn't have to modify my PSU's cables. If you find this idea too difficult, you could remove the mac cable entirely and buy some Kingwin 90* sata combo (power and data in one) cables and hang them down behind the shelf, but you need to do some cutting on the shelf to get them to fit.
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Post by tezzarist on Jul 24, 2010 7:23:26 GMT
Well time to show you guys my hack pro... Keep in mind I am trying to keep it looking as close to a real mac pro as possible. (so very minimal external modification)   Thanks to everyone who help me with the front panel. More pictures available at www.1t.co.nzHope you guys like it. |
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Post by aquamac on Jul 24, 2010 7:34:45 GMT
Hey tezzarist, very clean! You have made a nice job on the back panel,  original and well thought out too. I should think it runs quiet and cool with lots of space around the processor. |
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