[NEWBIE] CGMiner doesn't detect my two gpus (scrypt mining)

bernardbot

newbie

Activity: 5

Merit: 0

And this is the really weird thing (frequencies @ 300MHz Huh

) :

Code:

GPU 1: 302.2 / 211.2 Kh/s | A:3 R:0 HW:6 U:2.03/m I:15
50.0 C F: 6% (1016 RPM) E: 300 MHz M: 150 Mhz V: 0.950V A: 0% P: 0%
Last initialised: [2013-05-07 18:51:27]
Intensity: 15
Thread 1: 357.8 Kh/s Enabled ALIVE

Below with the conservative conf with --thread-concurrency 8192, -I 15 (going to 84-85 very quickly on GPU 0).

Code:

[P]ool management [G]PU management [S]ettings [D]isplay options [Q]uit
GPU 0: 73.0C 3023RPM | 190.6K/233.5Kh/s | A:0 R:0 HW:0 U:0.00/m I:15
GPU 1: 49.0C 2316RPM | 190.9K/241.9Kh/s | A:1 R:0 HW:0 U:3.82/m I:15

Here another weird thing. All the load on the second (the 0 is OFF), but the sensor reports 93 for the first.

Code:

[P]ool management [G]PU management [S]ettings [D]isplay options [Q]uit
GPU 0: 93.0C 4799RPM | OFF /129.1Kh/s | A:2 R:0 HW: 6 U: 0.53/m I:15
GPU 1: 53.0C 1017RPM | 524.8K/300.1Kh/s | A:4 R:0 HW:15 U: 1.06/m I:19

bernardbot

newbie

Activity: 5

Merit: 0

It is a 4 GB system. I solved the error lowering the --thread-concurrency parameter to 8192...
Now I have another problem though...the engine freq on one card is always stuck to 300MHz...don't know why...

haarts

newbie

Activity: 23

Merit: 0

How much RAM does your system have? I too have this problem, 3x7950 with 2GB RAM. I suspect this is not enough.

bernardbot

newbie

Activity: 5

Merit: 0

Hello guys,
I have my shiny new rig and I decided to mine using Ubuntu 12.04. I actually found this forum really helpful, and would like to reply to some post explaining my configuration for auto-start services and /usr/bin/screen. It works like a charm from that point of view and I am really happy with it.

The only problem I have, apart from overheating, is that cgminer doesn't recognize one of the two cards, disabling it at startup.
The message it spits out is:

Code:

[P]ool management [G]PU management [S]ettings [D]isplay options [Q]uit
GPU 0: 41.0C 2861RPM | OFF / 0.000h/s | A:0 R:0 HW:0 U:0.00/m I:19
GPU 1: 70.0C 2932RPM | 359.3K/1.572Mh/s | A:0 R:0 HW:0 U:0.00/m I:19
--------------------------------------------------------------------------------

[2013-05-06 00:37:27] Started cgminer 3.1.0
[2013-05-06 00:37:27] Probing for an alive pool
[2013-05-06 00:37:29] Network diff set to 26M
[2013-05-06 00:37:29] Error -5: Enqueueing kernel onto command queue. (clEnqueu
eNDRangeKernel)
[2013-05-06 00:37:29] GPU 0 failure, disabling!
[2013-05-06 00:37:29] Thread 0 being disabled

As you can see, to keep the temperature low, I just mine at around 360-400 kH/s at the moment.
How can I debug the problem? I have already checked the crossfire settings and the cards are NOT in
crossfire at the moment (I read that it is not necessary).

Thanks for your help guys!

Topic: [NEWBIE] CGMiner doesn't detect my two gpus (scrypt mining) (Read 2300 times)