Mac pro optical drive power cable

So I'm a litle reluctand to just power the 8-pin connector on the GPU from one 6-pin connector on the motherboard. I know it's been done succesfully in the past, but if posible I would like to avoid it. OK, I'll go look at that card and think about it. I really discard for flashed PC cards. It seems like the issues they cause are just not worth the few dollars you save over a made for Mac card. And you never know if the flash was done by someone who even knows what they are doing.

Maybe not all flashed PC cards are a good idea, but mine has been working without a single issue for the last 5 or 6 months. It now has full bootscreens and is propperly recognised as a in OS X. The way the card is connected in the tutorial you linked is probably fine, but like I said, the 8-pin connector is hooken up straight to the mini 6-pin on the motherboard. The mini 6-pin is only designed to handle up to 75W of power draw, whilst an 8-pin connector should be able to handle up to W.

So if the card is being put under load, it might draw more power from the logic board than the board was designed to accommodate, and fry the board. I know that probably isn't going to happen, but like I said before, I would like to avoid that risk if possible.

Mac Pro Pixlas Mod ~ The House of Moth

Let me ask more of an electrician in on this one oldturkey03 an see if he thinks a possible in-line fuse could be had and economically installed to protect your board and the advisability of it. Of course the fist thing to go in these machines is the video card. I'm on 2 x 2. That's an upgrade for the machine. A 5 Mhz bump on a Motorola 20 MHz made a major difference.

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What CPU configuration are you running on this? And how Much RAM? What's the goal for his card? What are you trying to do? I'm thinking about the dual 6-core update in the future, but it's going to be a while before I've got the funds to attempt the upgrade. The machine is mainly used for video editing and rendering in FCPX, and some very occasional light gaming. So the card won't be under full load all of the time, but during real-time playback of effects and titles FCPX dose utilise the card for rendering I believe.

Show 13 more comments. Help Translate iFixit. This is where the multimeter comes in as I have not personally tested these cables unlike the ones in this post for the 4,1 — 5,1 Mac Pro. According to information I have found the marked cables are the correct ones for 12V and Ground but double check with a multimeter to be sure. Cables marked in blue are Ground.

Cables marked in yellow are 12V. Please pay close attention to the cables marked with a warning symbol. In these locations the cables are not identical on both rows of the connector, so make sure you select the correct one. When the taps are on, this is the layout:. Now the cable is wrapped in a pretty sturdy black insulation. The taps and you will have a lot of trouble getting through it if you put them on directly. I cut the insulation all around and pull the material aside 2mm, just enough for the tap to fit in there.

Place the tap and lay the cable in place. Make sure the tap points the right way up and then clamp that sucker into place. If it pops open after the first attempt, just close the tap and try again. Take your time, no need to rush through it. Then move on to the next cable. And the next. The last cable will require two taps.

The power supply is ready! Guide the cable underneath the fan as you lower the power supply back into place.

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If all the taps lay side by side, the cable should be flat enough to fit through the slot quite easily. Once it sits in place, screw the power supply back into place. First you need to get the PCI cable in place. This is done by feeding it through a small space right next to the optical drive SATA cable.

Feed it in from the botom. Then feed it out the top. It comes pre-cut so all you have to do is slide off the insulation. I found it to be a better fit if I strip double that amount of cable though so I can fold it over. Now I forgot to take pictures of this so to demonstrate here is an amazing graphic: This will ensure a snug fit into the spade connector.

Once all the connectors are in place, pull the cable down to give yourself space to work and hang the optical drive cable to the side for now. Time to start connecting! Use the diagram above to see which cable goes where. Take your time and make sure the connectors snap into the tap firmly. The spade connectors may fold to one side rather than clip into the tap, check both sides of the tap to make sure the spade went IN to the tap and not off to the side. Loop it around, weave it through, whatever gives you a smooth connection.

If cables are tight, find another path to connect it. The result should look something like this. Both screw posts for the back plate unobstructed, all taps side by side and the optical drive SATA cable routed along the top. Now see if the back plate fits. Take the plate out and rearrange cables as needed to make it fit comfortably. You should have plenty of cable left to route it along the edge of the board, across the intake fan and to the GPU. Q: Why did you not cover testing the cable with a multimeter? A: Because the power supply cables were stripped before placing the tap, I am confident in a solid metal-to-metal connection.

Measuring output with a multimeter is just to make sure power is flowing through and the tap was not obstructed by cable insulation. Q: What are other ways to get this mod done? A: Instead of using taps, you could take apart the power supply and solder the PCI wires directly into it.

This was put together pretty quickly, I might add more information to this page in the future. All relevant information is already here though. December 24, — Hrutkay Mods has made a video based loosely on this guide, you can find it here. He intended to follow the guide step by step but had to go in a different direction; soldering instead of splicing. If you want to take the soldering route, do check out the video.

March 24, — I have made a video about the Pixlas Mod as well that follows this guide.

Mac pro 2009 Max power draw on SATA optical bay cables

You can find it right here. Go check it out here. Great post! Very Hard to find this type of information lately. Not sure why. I do have several questions but want to re-read first before asking something really stupid.

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Appreciate it. Great Mod, i will try it on my Mac Pro, just a dumb question, is the power output on the resulting 6 pin is 75w?

Mac Pro (Pre-2008) eSATA Extender Cable Installation Video

Output is what the card asks of it. Hey, I notice that the fourth larger wire—on the right side—has no clamp around it.

The House of Moth

How come that wire is left alone? This is great. Just a minor thought … for cleaning adhesive gunk off the cables or anything else , the ideal product is rubber cement thinner. This is sold at graphic arts shops as Bestine. There are products at the hardware store that are similar. This stuff is much more effective and less messy than wd, which adds gunk of its own.

Just use with decent ventilation. Thanks for the guide — went like a charm, but I am stuck. All blades are seated, wires were prepped with a gap for the taps, multimeter shows This was my first time doing this mod, but I think I got it all. What could I have missed? Great write up, thank you for taking the time to figure it all out and share.