List of motherboard that require shorting pin A1 B17 for pci-e 1x to work.

[Transisto]

Asus A8N-E
MSI 890FXA-GD70 AM3
MSI xpower Big Bang x58
EVGA 680i SLI (122-CK-NF68-A1)
EVGA 680i SLI (122-CK-NF68-T1)
Gigabyte EP45-DQ6 (bottom slot only)
Foxconn A7DA-S 3.0 (had unstable behavior with the 4th GPU)
ASUS A8N32-SLI
ASUS P5K
ASROCK N7AD-SLI
ASUS P5N-T (On both x1 -> x16 in x16 and in x1 slot)
ASUS M4A88T-V EVO/USB3
Gigabyte GA-990FXA-UD5 : Mixed results https://bitcointalk.org/index.php?topic=36061.msg847139#msg847139
MSI 990FXA-GD80
Asus - P7P55D-E Pro
EVGA 790i SLI Ultra needs shorting on 1x and 16x slots.
EVGA P55 Micro: x1 needs shorting
GA-M55S-S3
MSi K9N Neo-F V3  https://bitcointalk.org/index.php?topic=191530.msg2020681#msg2020681
ASUS Crosshair V Formula-Z
...

[haploid23]

here's two more i have and tested:

MSI 890FXA-GD70 AM3
MSI xpower Big Bang x58

[cyberlync]

Asus P5K

[Supercrit]

You can get some very cheap extenders now! You don't need to put a x16 card directly on the slot if you get an extender for 4 bucks.
https://bitcointalk.org/index.php?topic=36106.msg445182#msg445182

[Transisto]

You can get some very cheap extenders now! You don't need to put a x16 card directly on the slot if you get an extender for 4 bucks.
https://bitcointalk.org/index.php?topic=36106.msg445182#msg445182

You don't get it, problem is when you can't plug an 1x extender into an 1x slot and have it working.

[Supercrit]

You can get some very cheap extenders now! You don't need to put a x16 card directly on the slot if you get an extender for 4 bucks.
https://bitcointalk.org/index.php?topic=36106.msg445182#msg445182

You don't get it, problem is when you can't plug an 1x extender into an 1x slot and have it working.

So they don't work even with extenders?

[haploid23]

You can get some very cheap extenders now! You don't need to put a x16 card directly on the slot if you get an extender for 4 bucks.
https://bitcointalk.org/index.php?topic=36106.msg445182#msg445182

You don't get it, problem is when you can't plug an 1x extender into an 1x slot and have it working.

oh wait, i think i may have read it wrong. the boards i listed is for x1 extender into x16 slots. i think boards should work find plugging x1 extender into x1 motherboard slots without shorting pins.

[Transisto]

Anyway with this pin shorting tip I think we have yet to find a board with a pcie that can't be used for mining.

[cirz8]

Here are two more:

EVGA 680i SLI (122-CK-NF68-A1)
EVGA 680i SLI (122-CK-NF68-T1)

[Meatball]

ECS P45T-A requires it, but the board also got toasted after a few days, so I wouldn't suggest it.

[flyswatta]

• Asus A8N-E
• MSI 890FXA-GD70 AM3
• MSI xpower Big Bang x58
• ...

Please give me another one so we can call this a list.  

Glad you posted this - i just got my hands on an Asus A8N-E.  I think you prolly saved me a lot of frustration.

[Transisto]

Any word for a Gigabyte EP45-UD3P v1.6? That requires this trick?

This should be a sticky thread.

The bottom slot on EP45-DQ6 (8x) require the mod.

Maybe it's like yours.

PS : no problem with UD3R

[caish5]

Anyone know if this trick works with asus P5EVM-HDMI

[mrb]

ECS P45T-A requires it, but the board also got toasted after a few days, so I wouldn't suggest it.

It failed for another reason. Pins A1-B17 are meant to be shorted. Perhaps you pulled too much current on the motherboard's 12V rail.

[maxll]

ASUS A8N32-SLI too.

[Transisto]

Foxconn A7DA-S 3.0 had some crazy behavior with the 4th GPU,

The mod seems to have fixed it. (first slot)

[Transisto]

Note to self : shorting B1 with A17 will destroy the slot, but not the card.   

[ssateneth]

Note to self : shorting B1 with A17 will destroy the slot, but not the card.   

wait, what? I was just trying to short these pins and now you guys re telling me it'll fry my board? so whats the point of this thread?

[mrb]

He said B1-A17. The right pins are A1-B17.

If you can't pay attention to these details, maybe you shouldn't even be trying to short them 

[Zoomer]

Actually, looking at the pinout, shorting B17 to either B16 or B18 should work. Just disconnect the thing from the motherboard if you don't have anything connected.