How much 7990 work with Gigabyte GA-990FXA-UD7?
4 GPU picture
Topic: Motherboards: What Works w/Four or More GPUs? List Them (Read 53354 times)
asus m2npv-vm
A lot of cards (for example, Gigabyte HD7950) come with a 2xMolex->PCIe6 and a 2xMolex->PCIe8 adapter, in case your PSU doesn't have the proper cabling. In that case, you can string your PSU 4 PCIe8 to each of those video cards, then split up your separate molex arms and run them with the PCIe6 adapters.... 4 cards, 2 molex needed for each to supply a PCIe6.... Most PSUs have 6 or 8 molex connectors.
How do you use a PSU Brand & Model: Silverstone 1200W SST-ST1200-G Evolution to power up 4 GPUs? , it only has 4 pcie slots and each of your cards take 2 slots each right?
could anyone answer this? im building a rig with the problem of finding a psu that supports 4 gpus
WHAT WORKS
Motherboard Brand: Gigabyte
Motherboard Model & PCIe Slots: GA-970A-D3; two X16, 3 X1
PSU Brand & Model: Silverstone 1200W SST-ST1200-G Evolution
Number & Model GPUs: 4x Sapphire 7950 21196-00-20G Boost Models
Extender Cables: 2 X16 extenders, 2 1X to 16X adapters, works unpowered or powered
tried to put 5 th card in wont finish booting. NOT the boot problem other Gigabyte boards have. It will boot it just locks up. Tried underclocking cards.
Motherboard Brand: Gigabyte
Motherboard Model & PCIe Slots: GA-970A-D3; two X16, 3 X1
PSU Brand & Model: Silverstone 1200W SST-ST1200-G Evolution
Number & Model GPUs: 4x Sapphire 7950 21196-00-20G Boost Models
Extender Cables: 2 X16 extenders, 2 1X to 16X adapters, works unpowered or powered
tried to put 5 th card in wont finish booting. NOT the boot problem other Gigabyte boards have. It will boot it just locks up. Tried underclocking cards.
How do you use a PSU Brand & Model: Silverstone 1200W SST-ST1200-G Evolution to power up 4 GPUs? , it only has 4 pcie slots and each of your cards take 2 slots each right?
could anyone answer this? im building a rig with the problem of finding a psu that supports 4 gpus
WHAT WORKS
Motherboard Brand: Gigabyte
Motherboard Model & PCIe Slots: GA-970A-D3; two X16, 3 X1
PSU Brand & Model: Silverstone 1200W SST-ST1200-G Evolution
Number & Model GPUs: 4x Sapphire 7950 21196-00-20G Boost Models
Extender Cables: 2 X16 extenders, 2 1X to 16X adapters, works unpowered or powered
tried to put 5 th card in wont finish booting. NOT the boot problem other Gigabyte boards have. It will boot it just locks up. Tried underclocking cards.
Motherboard Brand: Gigabyte
Motherboard Model & PCIe Slots: GA-970A-D3; two X16, 3 X1
PSU Brand & Model: Silverstone 1200W SST-ST1200-G Evolution
Number & Model GPUs: 4x Sapphire 7950 21196-00-20G Boost Models
Extender Cables: 2 X16 extenders, 2 1X to 16X adapters, works unpowered or powered
tried to put 5 th card in wont finish booting. NOT the boot problem other Gigabyte boards have. It will boot it just locks up. Tried underclocking cards.
How do you use a PSU Brand & Model: Silverstone 1200W SST-ST1200-G Evolution to power up 4 GPUs? , it only has 4 pcie slots and each of your cards take 2 slots each right?
could anyone answer this? im building a rig with the problem of finding a psu that supports 4 gpus
MSI 970a-g46 works good with 1x to 16x extenders
4 5850 sapphire about 480 watts with undervolted sempron
Anyone know how to get 1x working MSI 990XA-GD55 I've tried the pin shorting trick and added a molex adapter.
Asrock 970 Extreme3 I can only get one of the 1x slots working with extender so just 3 slots with this one
4 5850 sapphire about 480 watts with undervolted sempron
Anyone know how to get 1x working MSI 990XA-GD55 I've tried the pin shorting trick and added a molex adapter.
Asrock 970 Extreme3 I can only get one of the 1x slots working with extender so just 3 slots with this one
I have the same problem with MSI 990XA-GD55.
did you succeed somehow?
WHAT DON'T WORK:
ASUS M4N75TD with PCIe Powered risers (in the 16x ports and in the 1x ports)
If I connect the molex, the motherboard doesn't even post.
If I did NOT connect the molex, the motherboard sometimes works, sometimes it doesn't start.
same behavior with 16 to 16x extenders that with 1x to 16x extenders.
tested with Sapphire 7950´s
this mobo doesn't like extenders
WHAT WORKS:
Curious, the cheap Gigabyte 78LMT-S2 motherboard works with 2x 7950 using: 1x 16x to 16x powered riser, and 1x 1x to 16x powered riser.
Interesting option as this motherboard is really really cheap, and for 2x 7950 is not a bad choice!!
However, comparing it with the Gigabyte 970A-D3 the performance is lower.
What I mean, is that in widows 7, the second card (in the 1x connector) is about 80% load, not more, ever, and with the bigger mother 970A-D3 load is 99% in every slot, probably has to do with limited bandwidth of the 78LMT-S2 , dunno.
ASUS M4N75TD with PCIe Powered risers (in the 16x ports and in the 1x ports)
If I connect the molex, the motherboard doesn't even post.
If I did NOT connect the molex, the motherboard sometimes works, sometimes it doesn't start.
same behavior with 16 to 16x extenders that with 1x to 16x extenders.
tested with Sapphire 7950´s
this mobo doesn't like extenders
WHAT WORKS:
Curious, the cheap Gigabyte 78LMT-S2 motherboard works with 2x 7950 using: 1x 16x to 16x powered riser, and 1x 1x to 16x powered riser.
Interesting option as this motherboard is really really cheap, and for 2x 7950 is not a bad choice!!
However, comparing it with the Gigabyte 970A-D3 the performance is lower.
What I mean, is that in widows 7, the second card (in the 1x connector) is about 80% load, not more, ever, and with the bigger mother 970A-D3 load is 99% in every slot, probably has to do with limited bandwidth of the 78LMT-S2 , dunno.
WHAT WORKS
Motherboard Brand: Gigabyte
Motherboard Model & PCIe Slots: GA-970A-D3; two X16, 3 X1
PSU Brand & Model: Silverstone 1200W SST-ST1200-G Evolution
Number & Model GPUs: 4x Sapphire 7950 21196-00-20G Boost Models
Extender Cables: 2 X16 extenders, 2 1X to 16X adapters, works unpowered or powered
tried to put 5 th card in wont finish booting. NOT the boot problem other Gigabyte boards have. It will boot it just locks up. Tried underclocking cards.
Motherboard Brand: Gigabyte
Motherboard Model & PCIe Slots: GA-970A-D3; two X16, 3 X1
PSU Brand & Model: Silverstone 1200W SST-ST1200-G Evolution
Number & Model GPUs: 4x Sapphire 7950 21196-00-20G Boost Models
Extender Cables: 2 X16 extenders, 2 1X to 16X adapters, works unpowered or powered
tried to put 5 th card in wont finish booting. NOT the boot problem other Gigabyte boards have. It will boot it just locks up. Tried underclocking cards.
Does anyone know if the Asrock970 extreme 4 will work with 5 gpus's in a win 64 enviro easily?
http://www.newegg.com/Product/Product.aspx?Item=N82E16813157262
http://www.newegg.com/Product/Product.aspx?Item=N82E16813157262
I dont know about Windows but that mobo is listed on the BAMT hardware compatibility list as working with 5 GPUs.
Does anyone know if the Asrock970 extreme 4 will work with 5 gpus's in a win 64 enviro easily?
http://www.newegg.com/Product/Product.aspx?Item=N82E16813157262
http://www.newegg.com/Product/Product.aspx?Item=N82E16813157262
I've learned that it is VERY important to first try a 4+ GPU rig at STOCK card clocks, then if that proves stable gradually OC each card until it becomes unstable then back off 10MH/z. Do this for each card until they are all running 24/7, in both mild and hot weather, without a problem. You will likely notice that some cards will OC very well and some will NOT. One unstable card can bring down the entire mining rig. Stability RULES!
Yes, especially with multiple rigs. I have mine all running stock speed and stock voltage. WORKS
Motherboard Brand: Biostar
Motherboard Model & PCIe Slots: A870U3 (2x16, 2x1)
Power Supply Brand & Model: Corsair TX850 (Pulling ~615W at the wall)
Number & Model GPUs: 4x Sapphire 5830 Xtreme (Overclocked & undervolted)
Extender Cables w/Molex Power?: No
Motherboard automatically unlocks 2nd core of Sempron 140.
I have a mix of 5870 and 5850, overclocked, no voltage change. the mobo fried up within a few weeks. Motherboard Brand: Biostar
Motherboard Model & PCIe Slots: A870U3 (2x16, 2x1)
Power Supply Brand & Model: Corsair TX850 (Pulling ~615W at the wall)
Number & Model GPUs: 4x Sapphire 5830 Xtreme (Overclocked & undervolted)
Extender Cables w/Molex Power?: No
Motherboard automatically unlocks 2nd core of Sempron 140.
I don't have 5 x16 extenders, I only have 1 and I can't really be bothered ordering more as I've got plenty of x1's and it seems to (mostly) work. My 5th card is just in my everyday pc for now, I just have to start and stop mining when I use it. Thanks though.
thats bad.
Try connecting 5 cards using FIVE 16x extender cables, then see windows detects 5 cards or not.
If windows detects then its good.
If windows detects only 4 card, then that board can accept 4 cards only.
Try connecting 5 cards using FIVE 16x extender cables, then see windows detects 5 cards or not.
If windows detects then its good.
If windows detects only 4 card, then that board can accept 4 cards only.
Ok thanks.
See pinout here for the TCK pin: http://en.wikipedia.org/wiki/PCI_Express
I pulled out one of my cards and the PICE slot came with it
See pinout here for the TCK pin: http://en.wikipedia.org/wiki/PCI_Express
I pulled out one of my cards and the PICE slot came with it
Yes, cables with molex to boost power to pci-e.
Mother boards are designed with the idea to play games, watch in high definition.....
Its not designed to run 100% 24/7 to mine.
http://cablesaurus.com/PCIe-x16-Extender-Cable-w-Molex-Connector
I don't know what you saying by TCK, maybe a pic will be better to show busted slot & bent pin.
Mother boards are designed with the idea to play games, watch in high definition.....
Its not designed to run 100% 24/7 to mine.
http://cablesaurus.com/PCIe-x16-Extender-Cable-w-Molex-Connector
I don't know what you saying by TCK, maybe a pic will be better to show busted slot & bent pin.
I don't have any of the extender cables with a molex connector, I'd never heard of them when I ordered my parts. Do you plug your power supply into them to boost the PCIE power?
I guess it could help when running a lot of cards.
Maybe it can work with more than 4 cards...
I busted one of the PCIE slots and bent one of the pins (the TCK one I think), is it important? Otherwise I only have 5 slots that work.
I guess it could help when running a lot of cards.
Maybe it can work with more than 4 cards...
I busted one of the PCIE slots and bent one of the pins (the TCK one I think), is it important? Otherwise I only have 5 slots that work.
WHAT WORKS
Motherboard Brand: Gigabyte
Motherboard Model & PCIe Slots: 990 FXA-UD3
Power Supply Brand & Model: FSP Aurum Pro 1200W
Number & Model GPUs: 4 x 6950 (1 each of ASUS, XFX, MSI and Sapphire)
Extender Cables w/Molex Power? 1 x PCIE 16x extender and 3 x PCIE x16 to x1 extenders. No molex power extenders.
Tried a 5th 6950 (XFX) but it wouldn't work. The MB has 6x PCIE slots total, would have been nice...
https://bitcointalksearch.org/topic/--7216
Can you try connecting the 5th & 6th slot using 16x extender cable with molex connector?Motherboard Brand: Gigabyte
Motherboard Model & PCIe Slots: 990 FXA-UD3
Power Supply Brand & Model: FSP Aurum Pro 1200W
Number & Model GPUs: 4 x 6950 (1 each of ASUS, XFX, MSI and Sapphire)
Extender Cables w/Molex Power? 1 x PCIE 16x extender and 3 x PCIE x16 to x1 extenders. No molex power extenders.
Tried a 5th 6950 (XFX) but it wouldn't work. The MB has 6x PCIE slots total, would have been nice...
https://bitcointalksearch.org/topic/--7216
Gigabyte 890FXA-UD7, has 6 slots, but so far i can make it to work in only FOUR cards, but with different slots which confuses me.
Yesterday i can able to connect 3 cards using 16x extender cable WITHOUT molex connector in 16x_1, 16x_2, 8x_2 & i hope i can make it work in 8x_1 slot also using 16x extender cable(which i don't have).
But this is opposite to me due to this https://bitcointalksearch.org/topic/m.475736
Here i used 16x & 4x slot, instead of yesterday 16x & 8x.
I hope maybe with 16x extender cable with/without molex can make this board to use all the 6 slots
WHAT WORKS
Motherboard Brand: Gigabyte
Motherboard Model & PCIe Slots: 990 FXA-UD3
Power Supply Brand & Model: FSP Aurum Pro 1200W
Number & Model GPUs: 4 x 6950 (1 each of ASUS, XFX, MSI and Sapphire)
Extender Cables w/Molex Power? 1 x PCIE 16x extender and 3 x PCIE x16 to x1 extenders. No molex power extenders.
Tried a 5th 6950 (XFX) but it wouldn't work. The MB has 6x PCIE slots total, would have been nice...
https://bitcointalksearch.org/topic/--7216
Motherboard Brand: Gigabyte
Motherboard Model & PCIe Slots: 990 FXA-UD3
Power Supply Brand & Model: FSP Aurum Pro 1200W
Number & Model GPUs: 4 x 6950 (1 each of ASUS, XFX, MSI and Sapphire)
Extender Cables w/Molex Power? 1 x PCIE 16x extender and 3 x PCIE x16 to x1 extenders. No molex power extenders.
Tried a 5th 6950 (XFX) but it wouldn't work. The MB has 6x PCIE slots total, would have been nice...
https://bitcointalksearch.org/topic/--7216
Still not clear to me. Is there a motherboard which can support 4 x HD7950 without having to short A1-B17 pin?
I am using Gigabyte GA 970A-D3 motherboards, has 5 PCI-E ports (one 16x, one 4x (with 16x size) and three 1x), I'm using 4 cards on this mobo, and no jumper necessary, but I'm using cablesaurus powered extender cables, they are not cheap but works perfectly.but this is under windows 7 x64, I still haven't tested under linux, booting from USB which is my finally goal.
Hi,
does anyone have any feedback on?
GA-H61M-D2-B3
http://www.gigabyte.com/products/product-page.aspx?pid=3773#ov
4 Slots.. should hold 4 cards
does anyone have any feedback on?
GA-H61M-D2-B3
http://www.gigabyte.com/products/product-page.aspx?pid=3773#ov
4 Slots.. should hold 4 cards
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