6 GPU Sapphire Tri-X R9 290 OC (non-x) Rig

[vleroybrown]

I'm pretty frustrated at the moment. I finally received the 1300W PSU and installed it. When I went to power on, I would only get a single click out of the PSUs. It wouldn't boot to bios or anything. I started removing components and even with just ATX 24-pin and 8-pin CPU it won't boot. Cleared CMOS nothing. I'm guessing the motherboard has failed or CPU. Any ideas? It had been running pretty good for the last while. It had a few hangs in Windows that required a hard reset.

Ram reseat the ram.  Also remove sticks to check if one has failed.  Other than tht it must be ur motherboard.. never heard of a bad cpu.

[1714817643]

1714817643

[1714817643]

1714817643

[1714817643]

1714817643

[1714817643]

1714817643

[ozzymax]

You will get better performance from your cards if you revert the display to Windows basic high contrast, So the GPU's don't have to waste processing power on windows 7-8 themes which will make one or two of your cards hash slower.

[hero18688]

I haven't touched voltages.

Have you tried this bios
https://litecointalk.org/index.php?topic=12830.390
and  -I 22 --thread-concurrency 32768 -w 256
I get better hash rate with it but occasional driver crashs.

btw:Are you running your rigs on win 8.1 or 7?

[dloganbill]

I'm pretty sure the motherboard is toast, especially after reading all the bad reviews it has.

So I'm thinking of getting one of these.  Any preferences?
http://www.newegg.com/Product/Product.aspx?Item=N82E16813128592
http://www.newegg.com/Product/Product.aspx?Item=N82E16813128681

[obliky]

I made some headway last weekend.  I gave up on Linux after being unsuccessful with BAMT and SMOS.  I installed Windows 8.1 and was mining in 30 minutes.  Amazon still hasn't shipped my 1300W PSU so I'm currently only running 5 GPUs with an 850W and 1050W.  Out of the box they were all running around 860 kh/s.  I've spent the last couple evenings tuning and things are looking promising.  
Things I learned along the way that seem to have helped:
1. Use Catalyst 13.12.  The 14.2 beta drivers were very unstable.
2. Don't bother with Trixx.  Install MSI Afterburner and use the settings shown on this post (link).
3.  I don't know if this helped or not, but I'm currently running with the bios switch toggled up (toward the end with DVI ports)

..
Here are my current settings.

Code:

"intensity" : "20,20,20,20,20",
"xintensity" : "0,0,0,0,0",
"rawintensity" : "0,0,0,0,0",
"worksize" : "512,512,512,512,512",
"kernel" : "ckolivas,ckolivas,ckolivas,ckolivas,ckolivas",
"lookup-gap" : "2,2,2,2,2",
"thread-concurrency" : "25601,25601,27401,25601,27401",
"shaders" : "0,0,0,0,0",
"gpu-threads" : "1,1,1,1,1",
"gpu-engine" : "1040,1020,1020,1040,1020",
"gpu-memclock" : "1500,1500,1500,1500,1500",
"gpu-memdiff" : "0,0,0,0,0",
"gpu-powertune" : "20,20,20,20,20",
"gpu-vddc" : "0.000,0.000,0.000,0.000,0.000",
"temp-cutoff" : "90,90,90,90,90",
"temp-overheat" : "85,85,85,85,85",
"temp-target" : "78,78,78,78,78",
"auto-fan" : true,
"api-mcast-port" : "4028",
"api-port" : "4028",
"expiry" : "1",
"failover-only" : true,
"failover-switch-delay" : "60",
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"log" : "10",
"no-pool-disable" : true,
"queue" : "0",
"scan-time" : "1",
"tcp-keepalive" : "30",
"temp-hysteresis" : "3",
"shares" : "0",
"kernel-path" : "/usr/local/bin",
"device" : "0,1,2,3,4"
}

Yesterday I bought 4x Sapphire 290 TRI-x after few tests with basic core and mem clocks I ended up with 700kh/s.

So I have decided to test your shared configuration,which ended up with very nice 900-910 kh/s

I had to delete these rows in config:
"xintensity" : "0,0,0,0,0",
"rawintensity" : "0,0,0,0,0",

and had to lower gpu-engine to 1020. In case I leave it at 1040, temperature rocket sky to 85, which is too high for me in long term.

So I want to say BIG THANK YOU.  Thank you dloganbill for sharing your tips..

Sending greetings from Czech republic.

  

[dloganbill]

Well I installed a replacement motherboard today and I still just get a click from the power supplies. The CPU fan doesn't budge. Should I get another CPU of are there any other tricks I should try? I've tested other sticks of RAM and three different PSUs. I've tried booting with just the 8 pin CPU power and ATX plugged in. It's really frustrating because it was mining fine and I shut it down to install a new larger PSU and it hasn't booted up since.

[vleroybrown]

Well I installed a replacement motherboard today and I still just get a click from the power supplies. The CPU fan doesn't budge. Should I get another CPU of are there any other tricks I should try? I've tested other sticks of RAM and three different PSUs. I've tried booting with just the 8 pin CPU power and ATX plugged in. It's really frustrating because it was mining fine and I shut it down to install a new larger PSU and it hasn't booted up since.

Bummer, tht really is a shitty situation man.  CPUs almost never fail especially since you weren't overclocking, the motherboard or PSU is almost 100X more likely to.  One of my other miners wouldn't boot with the PSU daisychained So I was only able to get one card installed on tht one. Good luck with figuring out what it is

[dloganbill]

I did some more multimeter testing on the PSUs. The 1300W tested fine last week when it arrived, but last night I tested it again and heard a pop followed by the unmistakable smell of charred PCB. So I have an RMA started with EVGA. The 1050W Seasonic now shows 12.75V which from what I've read is out of spec, so I'm planning to call Seasonic tomorrow. The 850W Corsair still tested perfect. I tried it on the new MB and it booted to uefi. I then installed the hard drive, but kept getting Windows errors during the boot up so I'm assuming that it was fried by the faulty 1300w PSU. I guess to look at things "glass half full", I didn't miss out on huge profits last week. Hope things improve soon.