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Make my own 6 pin PCI-e to 8 pin PCI-e adapter? |
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10-11-2008, 03:21 PM
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XCPUS.com Hardware Reviewer
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Make my own 6 pin PCI-e to 8 pin PCI-e adapter?
How would I go about doing such a thing? I have PCI-e 6 pin extension cables and 8 pin PCI-e extension cable that came with the GX2 that needs an 8 pin input.
Someone with better electronics skills than I (*calls out Blunc and Keith*) should post up the pinout I need to arrange to make the 6 pin change to the 8 pin 
I can solder well and am confident with all that stuff, just don't want to mess up the pinout.
Just found this... looks like I can copy that design, but anyone care to confirm what I'm seeing there?
Connect the 2nd from the left on the top row to the far right one on the bottom row (of the 8 pin side) and just follow the other leads to their respective places in the plug? |
10-11-2008, 03:26 PM
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MAD DAWG Admin
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BAD idea.
They are cheap, just buy one.
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10-11-2008, 03:35 PM
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I'm with brent on this one.
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10-11-2008, 03:56 PM
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魚類打耳光時間！
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If you just follow the pinout properly, it should work fine.
Go for it if you want...  |
10-11-2008, 04:06 PM
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The next SuperFry....
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10-11-2008, 04:47 PM
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The pinout is exactly the same for 6 of the pins (look at the keying on the connector), the extra two are both grounds. Yes the connector is an idiotic design and has 5 grounds and only 3 +12V lines, don't ask me why. These cables are cheap enough that you should just buy one though.
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10-11-2008, 05:02 PM
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Quote:
Originally Posted by arisythila
The next SuperFry....
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I train my apprentices well.
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10-11-2008, 07:10 PM
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the LEGENDARY Wu
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Converter are just two extra ground(black) pin. Which is the same as what the pin-shorting trick for 2900XT achieve I believe, to enable OverDrive. The trick should work on all 8-pin PCIe gfx cards if they require all pins connected to even power on.
A real 8-pin PCIe connector with a '12V sense' pin instead of the extra 2nd ground pin found in converters is what the gfx card really want.
As to how those two methods both allow a gfx card to draw from 6.25A to 12.5A (on paper) I have no idea.
I do know that even with 6-pin I was able to draw nearly 37.5A (300W) for the 2900XT...
Anyway, I think the pin trick should do. Converter just looks untidy, an extra segment to the already crowded cabling.
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10-12-2008, 02:54 PM
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Defying the weak and making my own right now... hell if I'm going to wait another week to use the GX2.
If I don't post back in a few hours that means my PSU is toast  |
10-12-2008, 03:05 PM
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*Waits for the impending boom*
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10-12-2008, 04:25 PM
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Works superbly, took a pic of completed product but if anyone is curious I can Paint draw something up for a diagram.
Saves me $10 and now I can bench 01 tonight as a reward for turning in the first draft of my senior research! All 78 pages of it  |
10-12-2008, 04:32 PM
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Quote:
Originally Posted by tool_462
Works superbly, took a pic of completed product but if anyone is curious I can Paint draw something up for a diagram.
Saves me $10 and now I can bench 01 tonight as a reward for turning in the first draft of my senior research! All 78 pages of it |
Tool, did you really think your power supply would defy you? |
10-12-2008, 04:54 PM
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Quote:
Originally Posted by Afrodisiac
Tool, did you really think your power supply would defy you?
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Wasn't worried about the PSU at all, OCZ GameXstream 750 can handle much more than I'm asking it to do 
Was just worried about getting the pins spliced correctly, but it works fine and 5 minutes of cutting/taping saved me $10 and much time of gaming on the 8800GS |
10-12-2008, 05:15 PM
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Uber Member
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Quote:
Originally Posted by tool_462
Wasn't worried about the PSU at all, OCZ GameXstream 750 can handle much more than I'm asking it to do
Was just worried about getting the pins spliced correctly, but it works fine and 5 minutes of cutting/taping saved me $10 and much time of gaming on the 8800GS |
So how much ass does the GX2 kick exactly. |
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