Mobo that can handle 4x 7970's?

[Nickers]

I've seen this: http://www.newegg.com/Product/Product.aspx?Item=N82E16813128514

But it seems way more expensive than I probable need and not sure if the pci cards are going to be spaced enough to hold 4 of these massive cards, can you guys give me some advice? ..Maybe look into extenders???

[1714057576]

1714057576

[1714057576]

1714057576

[1714057576]

1714057576

[nebulus]

P9X79WS

[Nickers]

P9X79WS

That boards 200$ more

[jjiimm_64]

I have 5 7970's on this one:  http://www.newegg.com/Product/Product.aspx?Item=N82E16813130274R

I have 5 7970's on this one:  http://www.newegg.com/Product/Product.aspx?Item=N82E16813131735



I tried to put a 6th 7970 on the gd70, but even tho the drivers appear to load, windows devices disabled one of the cards each time..  did not figure out why, just kept the 5 running

[nebulus]

How do you fit 5 on there?

[jjiimm_64]

How do you fit 5 on there?

[nebulus]

Sweet... Where do I get them PCI cables? Or what the hell are they called?

[malevolent]

Sweet... Where do I get them PCI cables? Or what the hell are they called?

PCIe extenders/ribbons/risers

ebay (either cheap and wait 2-3 weeks, or wait a few days and pay much more) or 9mart.com
don't overpay at cablesaurus

[nebulus]

Cool, thanks... Couldn't think of the name..

[jjiimm_64]

Sweet... Where do I get them PCI cables? Or what the hell are they called?

amazon

[deepceleron]

If you are going to buy the extender cables, you don't need a motherboard with all 16x slots, you can use a mobo like this one with 1x->16x adapters for 4 cards:

[jjiimm_64]

that is tru, but the 2 I listed has on mobo start and reset buttons for caseless rigs.

[Beaflag VonRathburg]

I simply use $60 MSI mATX h61-p21 boards. I have two of them and each runs 4x5870s. If you're going to use 4x7970s I may consider putting them on risers with Molex plugs.

[deepceleron]

I simply use $60 MSI mATX h61-p21 boards. I have two of them and each runs 4x5870s. If you're going to use 4x7970s I may consider putting them on risers with Molex plugs.

That looks like a pretty good miner platform for those with extender cables, as it is all PCIe 1x slots with no legacy PCI, and a Celeron G440 can go in that ($65+$41 free ship on NewEgg). I started looking at AMD boards figuring that a Sempron plus the least-expensive brand-name 4xPCIe motherboard would be cheaper than an Intel platform.
For later resell though, a motherboard with two 16x PCIe slots plus a 2.8GHz AMD CPU will sell easier than a mATX no-PCI-slot board with a 1.6GHz Celeron - you can sell the AMD with GPUs as a crossfire gaming system, but the Intel can't even be a media PC (only VGA out).

that is tru, but the 2 I listed has on mobo start and reset buttons for caseless rigs.

I've got your reset switch right here:

For power, just set the BIOS to power on after power loss.

[kliffen]

that is tru, but the 2 I listed has on mobo start and reset buttons for caseless rigs.

I just short the powerpins with a screwdriver/knife. It's not hocus pocus. Save yourself some money and buy a cheap board and risers

[e21]

that is tru, but the 2 I listed has on mobo start and reset buttons for caseless rigs.

I just short the powerpins with a screwdriver/knife. It's not hocus pocus. Save yourself some money and buy a cheap board and risers

$4: http://www.newegg.com/Product/Product.aspx?Item=N82E16812201029

[jjiimm_64]

there are other reasons I like the higher end mobo

1.  resale value.  the gd70 is a great gamer mobo
2.  2 nics
3.  more slots: Don't you want more then 4 cards on a rig?



how about 6.  2460 Mh

[kliffen]

that is tru, but the 2 I listed has on mobo start and reset buttons for caseless rigs.

I just short the powerpins with a screwdriver/knife. It's not hocus pocus. Save yourself some money and buy a cheap board and risers

$4: http://www.newegg.com/Product/Product.aspx?Item=N82E16812201029

Last time i had use for a powerswitch was sometime late 2011. You can set your computer to boot from your mouse if you want to.

[jjiimm_64]

that is tru, but the 2 I listed has on mobo start and reset buttons for caseless rigs.

I just short the powerpins with a screwdriver/knife. It's not hocus pocus. Save yourself some money and buy a cheap board and risers

$4: http://www.newegg.com/Product/Product.aspx?Item=N82E16812201029

Last time i had use for a powerswitch was sometime late 2011. You can set your computer to boot from your mouse if you want to.

being able to hold down the power switch for 5 seconds to turn off a hung rig is valuable to me...   

[malevolent]

being able to hold down the power switch for 5 seconds to turn off a hung rig is valuable to me...   

You can always turn the switch on the PSU.