Bitcoin Forum

Ok so I try to cmd line launch any miner and the app just crashes

I've tried:
GUI Miner
poclbm
phoenix

Win 7 64bit, one stick 2GB, 1100W PSU, 4x6870 on MSI 890FXA

if I run any of the miners from a CMD line with or without flags, they all crash


Where do I start

How do they crash? Do you get any specific error?

Many people claim crossfire should be disabled for mining, but in general I disagree. In every instance I've ever mined in, crossfire has to be enabled for the miners to work.

Crossfire disabled

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upon launch of any miner

Hmm, that's not an error I've ever seen. The gui miner should work regardless of the actual miner tools working.

I'm at a loss on this one - is that the same error you get when trying to run poclbm?

yes, except it says poclbm.exe, and it doesn't have the orange icon

so, same thing really.... This was not happening untill I re-installed drivers

Perhaps I should re-install windows? it only takes like 15 minutes anyway lol

Just wondering, you sure you have installed opencl drivers? Or the sdk itself?

Installed ATI catalyst suite which should have the drivers

it didnt work, so i installed some APP_SDK which i think is the sdk itself, then this started happening

per suggestion in IRC i'm formatting to 32bit windows. should be done in 20 minutes

Formatted to 32bit windows and the same thing is happening

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What do you make of this?

This is kinda insane. Not a single one of your cards work?

Open the command prompt, run poclbm without flags and write down whatever you're getting.

all 3 will work great if only 3 is installed


if i install 4...then i get problems with the miner/openCL

i swapped all 4 cards (I have 8 total) and its not the cards, its somewhere software or motherboard setting related (i have two identical mobos too)

the mobo supports 4 graphics cards, at x8/x8/x8/x8

Oh that changes alot. Do you have one of those integrated graphics thing? AMD Windows drivers support only up to 4 gpus.

I don't have any form of integrated graphics/onboard GPU that I can find in device manager or physically on the board.

Seems like you're cutting corners... with both the 1100 Watt PSU and the 2GB of RAM.

The PSU is a little low for 4 cards and a CPU depending on how many watts your CPU is... and your ram is darned low for a windows machine.

You sir are a god damned idiot.

1100W is MORE than enough for Four 6870s (180w each) and a 65W processor.

2GB of RAM is fine. I'm using 500MB in windows with everything loaded. I have no use for more, this is a dedicated machine.

No corners were cut building this machine

Although I agree that the PSU is more than powerful enough, this kind of reply doesn't exactly encourage people to try to help you.

Sorry, its a little frustrating when I'm topping 10 hours into working on this software problem and I cant even get Linux to install the ATI/Radeon display driver correctly on a different card.
I've been trying to figure this out since ~330pm, its just past two am now.

If you can't use all 4 gpu's it's probably because you need to do it on windoes 64. It does it right for me for all my max overclocked nvidia fermi cards x 4.

...I AM on 64bit. Read the first post.

Have you tried moving your dummy plugs around?

No I have not... I'll try

what happened afterwards? any solution for the problem?

Enabling Crossfire on cards 1 and 2 I was able to get all 4 cards working

Just ran across this thread.  I'm having the exact same issue.  I'll try the crossfire approach.  So you only crossfired two of the cards and left the other two running single?

Yes, because the cards I use only allow 2 in CF at a time... there's only 1 crossfire bridge available.

you mean like putting the crossfire bridge on them? i thought that doesn't help the mhash/s.. do you actually get all gpus to mine at their speed?

on the other two cards, do you use dummy plugs?

hmm, I'm still getting the error...