Motherboard of choice for 6 or more GPU's - page 4.

AndrewWilliams

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Activity: 182

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Fourth richest fictional character

Quote from: Burninj on December 10, 2013, 12:21:03 PM

Im' actually trying to run 7 cards on a MSI Z87-G45 GAMING with a Pentium g3220. So far I can't get more than 5 gpus to mine together under win 8, and I cant try linux because of shitty ethernet controller... Any idea about the 5 cards limit?

I have the same setup, MSI Z87-G45 Gaming and Pentium G3220.

I am confined to 2 GPUs right now until I can get my hands on some risers. Any suggestions for where to buy risers fast?

BTW, did you put thermal paste on your CPU, or did the heatsink already have it pre-applied?

boozer

sr. member

Activity: 309

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Quote from: miner_x on December 14, 2013, 12:33:21 PM

Do you think I would need to use a jumper to activate that slot?

If no card is detected in that slot, but your card(s) are detected in other slots, then trying a jumper is worth a shot. Depends on the board, but only one way to find out Tongue

miner_x

newbie

Activity: 7

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Quote from: boozer on December 12, 2013, 08:51:36 PM

Quote from: miner_x on December 12, 2013, 07:48:45 PM

Has anyone succeeded to run 7 cards on Gigabyte Z87X-OC?
Do I need to do something to enable the PCI 1x on this board?

I havent used that board but did you try using a jumper on that 1x slot?

I haven't tried it yet because I'm waiting for the pci risers
I hope to get them this week to try it out

Do you think I would need to use a jumper to activate that slot?

tropicthunder

newbie

Activity: 44

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Have 4 gpu 5770, 6750, 6850, 6950 what watts should get? 600w?

boozer

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Activity: 309

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Quote from: miner_x on December 12, 2013, 07:48:45 PM

Has anyone succeeded to run 7 cards on Gigabyte Z87X-OC?
Do I need to do something to enable the PCI 1x on this board?

I havent used that board but did you try using a jumper on that 1x slot?

miner_x

newbie

Activity: 7

Merit: 0

Has anyone succeeded to run 7 cards on Gigabyte Z87X-OC?
Do I need to do something to enable the PCI 1x on this board?

Steam20

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Activity: 146

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Gigabyte UD-7

Slander

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Activity: 171

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Quote from: boozer on December 10, 2013, 12:05:25 PM

Quote from: Slander on December 10, 2013, 12:02:56 PM

running more than 4 gpus on a single mobo is annoying. Lots of crashes and lockups. Trust me, you will spend way to much time trying to keep it stable.

At the end of the day you just want a stable rig that needs no babysitting.

That may be your opinion, but I have many 7 card linux rigs that are stable for weeks at a time. I only have to intervene if there is a hardware failure of some sort (or to switch pools).

Glad that works for you, I wish I had such luck.

A lot of people will be running windows, for them, running 4 cards per rig is the way to go. Another thing to keep in mind is that if you wake up and see your rig has been down all night for what ever reason its better to have 4 cards offline instead of 7. All your eggs in one basket and all that

Burninj

legendary

Activity: 1148

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Im' actually trying to run 7 cards on a MSI Z87-G45 GAMING with a Pentium g3220. So far I can't get more than 5 gpus to mine together under win 8, and I cant try linux because of shitty ethernet controller... Any idea about the 5 cards limit?

boozer

sr. member

Activity: 309

Merit: 250

Quote from: Slander on December 10, 2013, 12:02:56 PM

running more than 4 gpus on a single mobo is annoying. Lots of crashes and lockups. Trust me, you will spend way to much time trying to keep it stable.

At the end of the day you just want a stable rig that needs no babysitting.

That may be your opinion, but I have many 7 card linux rigs that are stable for weeks at a time. I only have to intervene if there is a hardware failure of some sort (or to switch pools).

Slander

full member

Activity: 171

Merit: 100

running more than 4 gpus on a single mobo is annoying. Lots of crashes and lockups. Trust me, you will spend way to much time trying to keep it stable.

At the end of the day you just want a stable rig that needs no babysitting.

boozer

sr. member

Activity: 309

Merit: 250

Quote from: 1632008 on December 10, 2013, 12:30:53 AM

How about msi big bang marshal?
This one has up to 8 pcie x16 slots and is known to work for 8 cards. Current second-hand price is about 150$ in my local market.
But I also heard someone said he could only manage it to work with at most 6 cards.

Yea, thats a good board... I'm just looking for something out of the new series that will be available in large quantities if needed and will have a longer warranty.

1632008

newbie

Activity: 23

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How about msi big bang marshal?
This one has up to 8 pcie x16 slots and is known to work for 8 cards. Current second-hand price is about 150$ in my local market.
But I also heard someone said he could only manage it to work with at most 6 cards.

boozer

sr. member

Activity: 309

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Now that the MSI Z77a-GD65 GD55 are all gone... Is the Z87 the replacement? Anyone got 7 GPU's running on it?

crescendo

newbie

Activity: 29

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I using motherboard intel premium 245, it has reliable motherboard, it is longest life motherboard. Motherboard of 6 GPU have very comfortable and reliable.

CartmanSPC

legendary

Activity: 1270

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I have decided to only use 4 GPUs (7970s) per rig.

Is there a preferred order of slots that should be used on the Z77A-GD65?

I currently have following slots populated all with 1x to 16x powered risers:

The first two GPUs (closest to the CPU) run much hotter than the other two

GPU1 73.0C
GPU2 75.0C
GPU3 65.0C
GPU4 62.0C

Video is plugged into GPU2.

FullLife

hero member

Activity: 503

Merit: 500

Quote from: wojgp on July 27, 2013, 08:16:09 PM

Hi
I have a MSI Z77-GD65 mobo with 5 x HD7870 XT Tahiti. 1 of these cards show error 43 (although all 5 are detected) and 4 are listed correctly in device manager. Is there any solution to use 5 or even 6 cards on this mobo ? I tried powered risers etc. , but only 13.1 drivers.
Do You think there is a reason to try with 12.6 or different ? Should I use win8 instead ?

Please help.

The info you seek has already been posted in this thread. To use that many 7xxx series cards on one motherboard with Win 7, you need to used 12.6 drivers. I've run (5) 7xxx cards on one board w/ Win 7 and (6) 7xxx cards on one board w/ Win 8 using those drivers.

tdslot

newbie

Activity: 20

Merit: 0

Hello,

I have problem.

Who can help me?

I have mining rig hardware:

4x XFX7950 FX-795A-TDJC
ASUS SABERTOOTH 990FXR2.0 motherboard
8GB RAM
CPU AMD FX8320 8x Cores 3.51 Ghz
PSU Lepa 1600W

Software:

Windows 7 SP1 x64
AMD Radeo HD drivers 13.4 x64
AMD SDK 2.7 x64
CGMINER 3.3.1

My cgminer.conf

Code:

"api-allow" : "W:127.0.0.1",
"api-listen" : true,
"api-port" : "4028",
"expiry" : "120",
"failover-only" : true,
"hotplug" : "5",
"kernel-path" : "/usr/local/bin",
"log" : "5",
"no-submit-stale" : true,
"queue" : "1",
"rotate" : "10",
"scan-time" : "30",
"scrypt" : true,
"shares" : "0",
"auto-fan" : true,
"gpu-threads" : "1",
"gpu-dyninterval" : "7",
"gpu-engine" : "0-1025",
"gpu-fan" : "0-100",
"gpu-platform" : "0",
"gpu-memclock" : "1250",
"gpu-memdiff" : "0",
"gpu-powertune" : "0",
"gpu-vddc" : "1.087",
"intensity" : "20",
"temp-target" : "75",
"temp-overheat" : "88",
"temp-cutoff" : "95",
"temp-hysteresis" : "3",
"vectors" : "1",
"worksize" : "256",
"lookup-gap" : "2",
"shaders" : "2048",
"thread-concurrency" : "21712",
"no-pool-disable" : true

With this configuration 3x GPU cards running stable. But when I connect 4 card and run cgminer works very bad and turnoff motherboard. But PSU still running.

Who can help me with this problem? Maybe not impossible run rig with 4x GPU's? Maybe my configuration is wrong? Or I forget something to install?

Than you in advance,

TDS

lbr

sr. member

Activity: 423

Merit: 254

Quote from: lbr on June 16, 2013, 07:31:39 PM

Quote from: ssateneth on June 15, 2013, 07:57:47 PM

why do people still spread this powered riser FUD? I have NEVER used a powered riser, and I have never had problems. All my rigs have 6 cards (8 gpu for 5k series, or 6 7970) and use 16x and 1x slots all with 1x > 1x risers. Been mining since july 2011.

Just because you did not have issues - does not mean powered risers are FUD ; )
Yesterday my friend burnt couple of non-powered 16x-1x risers and before that mb and the same conf with powered risers have no issues.

Also using powered risers makes perfect sense technically speaking unless you have proof that all the GPUs are using no more than 10W from PCI-E slot and that all the motherboards are capable providing 10W on each PCI-E slot(or any other W combination which won't burn mb power regulator).

p.s.
I'm also running non-powered risers on all my rigs with no issues.

edit 2013/07/28: After running ~2months 24/7 my rig burned ; ) PSU ATX motherboard connector to be exact.

Gigabyte GA-990FXA-UD3 rev. 3.0, 2x6950 + 4x7950, Enermax Revolution 85+ 1250W, all card via x16_x1 non-powered risers.

PSU ATX motherboard connector burned after running 24/7 for ~2months.

wojgp

newbie

Activity: 25

Merit: 0

Hi
I have a MSI Z77-GD65 mobo with 5 x HD7870 XT Tahiti. 1 of these cards show error 43 (although all 5 are detected) and 4 are listed correctly in device manager. Is there any solution to use 5 or even 6 cards on this mobo ? I tried powered risers etc. , but only 13.1 drivers.
Do You think there is a reason to try with 12.6 or different ? Should I use win8 instead ?

Please help.

Topic: Motherboard of choice for 6 or more GPU's - page 4. (Read 94486 times)