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on: August 01, 2012, 10:52:57 PM

I am currently running ./bitcoin-0.6.3-linux/bin/32/bitcoin-qt on Ubuntu 12.04 LTS After a random period of time I get: Code: bitcoin-qt: Fatal IO error: client killed bitcoin-qt: /usr/include/boost/thread/pthread/mutex.hpp:50: void boost::mutex::lock(): Assertion `!pthread_mutex_lock(&m)' failed. Aborted (core dumped) How can I prevent bitcoin from doing this ?

on: July 21, 2012, 11:46:39 AM

I guess they do have some value. Here is a non-working one currently bidding about $50 http://www.ebay.com/itm/HIS-ATI-Radeon-HD-5870-AS-IS-non-working-/221075979574

on: July 19, 2012, 10:05:46 PM

The card worked for about 24 hours and now it stopped again. I see people are selling GPUs as parts or repair.... how much is a 5870 worth when sold as parts/repair ?

on: July 18, 2012, 09:43:17 PM

From the cgminer docs: Quote EXECUTIVE SUMMARY ON USAGE: Single pool, dedicated miner: cgminer -o http://pool:port -u username -p password -I 9 That maintains an 85 degree gpu. All I am saying is that when that exact command is issued it should keep the gpu at 75 degrees.

on: July 18, 2012, 04:36:19 PM

Perhaps the default settings in the miners should have a lower temperature to run the hardware safely. ( 75 sounds like the recommended temp ) Then only allow the overclockers to run it hotter. How long had you been running the card from 80-85 ?

on: July 18, 2012, 01:11:10 AM

My GPU has been running at 85 degrees. I wanted to mine at a safe level without any overclocking. So I followed the executive summary of: Single pool, dedicated miner: cgminer -o http://pool:port -u username -p password -I 9 That results in gpu running at 85 degrees. The readme said all the defaults should be safe values. I have now added --auto-fan so that the temp comes down to 75 degrees. What is a safe temperature to mine at ?

on: July 17, 2012, 11:41:34 PM

The card is working again. I think this card has to "warm up" before it will complete the POST. On a cold boot it stopped at 2A. Seeing that it was broken I just kept rebooting it and noticed the post code got a little farther than 2A. I waited some more to heat up, rebooted and it finally booted into the OS. ( Either that or the position of one of the PCI express power connectors was under a little pressure. ) I saw posts online of people baking their gpu in the oven to fix it. Before I went that far I was going to try a few other things. Now it is back to mining.

on: July 16, 2012, 02:36:59 AM

Yesterday I had an AMD/ATI radeon 5870 working just fine. ( never overclocked ) Today the computer will not complete POST. I have tried the card in 2 different systems: - Award BIOS postcode stops at 26 - AMI BIOS postcode stops at 2A The computer boots up with other video cards, just not the 5870. Is there anything I can try to get this card working again ?

on: July 14, 2012, 12:29:12 PM

Quote Kworker is what controls the ACPI wakeup signals from the BIOS. The latest kernel, well all of them since 2.6.35 have had issues with too many wakeups. More info about problems with newer kernels....does anyone know of a submitted bug report so we will know when this issue gets fixed ?

on: July 12, 2012, 12:27:57 AM

I have seen threads reguarding: export the var "GPU_USE_SYNC_OBJECTS=1" to CGminer to fix the "100% CPU usage BUG". And use Ubuntu 11.04 64bit installed (NOT 11.10 or newer!!!) <- because there are crossfire bugs. Is there any truth to these items ?

on: July 11, 2012, 05:11:36 PM

Here is some additional info from my setup. Quote $ ./cgminer --ndevs [2012-07-10 13:05:46] CL Platform 0 vendor: Advanced Micro Devices, Inc. [2012-07-10 13:05:46] CL Platform 0 name: AMD Accelerated Parallel Processing [2012-07-10 13:05:46] CL Platform 0 version: OpenCL 1.2 AMD-APP (923.1) [2012-07-10 13:05:46] Platform 0 devices: 2 [2012-07-10 13:05:46] 0 Cypress [2012-07-10 13:05:46] 1 Cypress [2012-07-10 13:05:46] Failed to ADL_Adapter_ID_Get. Error -10 [2012-07-10 13:05:46] Failed to ADL_Adapter_ID_Get. Error -10 [2012-07-10 13:05:46] ADL found less devices than opencl! [2012-07-10 13:05:46] There is possibly more than one display attached to a GPU [2012-07-10 13:05:46] Use the gpu map feature to reliably map OpenCL to ADL [2012-07-10 13:05:46] WARNING: Number of OpenCL and ADL devices did not match! [2012-07-10 13:05:46] Hardware monitoring may NOT match up with devices! [2012-07-10 13:05:46] GPU 0 ATI Radeon HD 5800 Series hardware monitoring enabled [2012-07-10 13:05:46] 2 GPU devices max detected$ I also found this https://bitcointalk.org/index.php?topic=10103.0 like an entry in this post my setup also saw kworker was eating up my cpu.

on: July 11, 2012, 11:40:56 AM

I currently have an Intel Pentium 4 3.20GHz I am running CGMiner

on: July 11, 2012, 01:34:32 AM

I have been mining a single 5870, and now I have decided to go dual 5870s. I have a certified crossfire 750 watt power supply Motherboard with 2 PCI Express x16 slots I expected to get 2x the performance 325 Mhash/s x 2 = 750 Mhash/s ( aprox ) But it turns out my rate was only 425 Mhash/s. Load was running around 5, so I am assuming my CPU is too slow to push both cards to the expected rate of 750 Mhash/s. What is the minimum cpu required to get 750 Mhash/s from dual 5870 using crossfire ?

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