rocketron
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
December 19, 2013, 12:55:39 PM |
|
Is 2GB ram enough for 6 GPU's?
as a rule of thumb, i usually match the system ram with the gpu ram, so say 2 x 6990s is 8gb, so system ram min would be 8 gb So that might be the problem..because starting CGminer can take like on minute before it actually does something? And sometimes it doesn't start but the black CMD box stays empty. Wow 4 x 6990 really? In windows? My setup; Asrock 970 Extreme 4 Sempron 145 CM Silent Pro 1500W 2GB RAM that was under linux mind you, but i did have 3 running in windows at one point too. it seems to me you need to get some more system ram, its dog cheap anyway
|
|
|
|
merred (OP)
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
December 19, 2013, 12:56:07 PM |
|
Is 2GB ram enough for 6 GPU's?
as a rule of thumb, i usually match the system ram with the gpu ram, so say 2 x 6990s is 8gb, so system ram min would be 8 gb So that might be the problem..because starting CGminer can take like on minute before it actually does something? And sometimes it doesn't start but the black CMD box stays empty. Wow 4 x 6990 really? In windows? My setup; Asrock 970 Extreme 4 Sempron 145 CM Silent Pro 1500W 2GB RAM that was under linux mind you, but i did have 3 running in windows at one point too. it seems to me you need to get some more system ram, its dog cheap anyway Did I buy the correct RAM? Mushkin DIMM 2 GB DDR3-1066,
|
|
|
|
rocketron
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
December 19, 2013, 12:57:28 PM |
|
Is 2GB ram enough for 6 GPU's?
as a rule of thumb, i usually match the system ram with the gpu ram, so say 2 x 6990s is 8gb, so system ram min would be 8 gb So that might be the problem..because starting CGminer can take like on minute before it actually does something? And sometimes it doesn't start but the black CMD box stays empty. Wow 4 x 6990 really? In windows? My setup; Asrock 970 Extreme 4 Sempron 145 CM Silent Pro 1500W 2GB RAM that was under linux mind you, but i did have 3 running in windows at one point too. it seems to me you need to get some more system ram, its dog cheap anyway Did I buy the correct RAM? Mushkin DIMM 2 GB DDR3-1066, if your system booted it should be ok, check your mobo specs. you could also try input the ram timings manually in the bios
|
|
|
|
merred (OP)
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
December 19, 2013, 01:01:15 PM |
|
So the problems that occure when using high settings (these settings worked for 2 cards); thread 8192, i 18
CGminer crash; Problem signature: Problem Event Name: APPCRASH Application Name: cgminer.exe Application Version: 0.0.0.0 Application Timestamp: 5278f3b2 Fault Module Name: aticaldd.dll Fault Module Version: 6.14.10.1741 Fault Module Timestamp: 501340a0 Exception Code: c0000005 Exception Offset: 00008ea0 OS Version: 6.1.7600.2.0.0.768.3 Locale ID: 2067 Additional Information 1: 0a9e Additional Information 2: 0a9e372d3b4ad19135b953a78882e789 Additional Information 3: 0a9e Additional Information 4: 0a9e372d3b4ad19135b953a78882e789
CGminer error: enqueueing kernel onto command queue. (clenqueuendrangekernel)
Or just a ticking CMD screen when nothing happens.
Also seems that it takes a lot of time before CGMINER actually runs.
I'll try more RAM now.
|
|
|
|
merred (OP)
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
December 19, 2013, 02:46:37 PM |
|
Now using 2 x 4GB Ram (kingston 1600 DDR3). Still the same problem. It crashes and so on ![Sad](https://bitcointalk.org/Smileys/default/sad.gif) . Problem signature: Problem Event Name: APPCRASH Application Name: cgminer.exe Application Version: 0.0.0.0 Application Timestamp: 5278f3b2 Fault Module Name: aticaldd.dll Fault Module Version: 6.14.10.1741 Fault Module Timestamp: 501340a0 Exception Code: c0000005 Exception Offset: 00008ea0 OS Version: 6.1.7600.2.0.0.768.3 Locale ID: 2067 Additional Information 1: 0a9e Additional Information 2: 0a9e372d3b4ad19135b953a78882e789 Additional Information 3: 0a9e Additional Information 4: 0a9e372d3b4ad19135b953a78882e789
|
|
|
|
merred (OP)
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
December 19, 2013, 02:49:16 PM |
|
The best i can get working untill now is;
-I 17 --thread-concurrency 7040 --gpu-fan 100 --gpu-engine 880 --gpu-memclock 1250
|
|
|
|
rocketron
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
December 19, 2013, 02:52:48 PM |
|
i am out of ideas dude, what version of cgminer are you using? try 3.7.2
|
|
|
|
merred (OP)
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
December 19, 2013, 02:59:53 PM |
|
So you got 3 x 6990 running in windows with above settings? I think i will switch in linux to give that a try. Yes Catalyst 13.1 without CCC, Cgminer 3.7.2, SDK 2.7 For some reason, it only accepts low settings. Thread concurrency above 7500 = crash or no nothing happens. Same for intensity above 17. So i'm stuck currently with 2800khs for 3, which is not too bad..but I was getting +2KHS from 2 cards ![Sad](https://bitcointalk.org/Smileys/default/sad.gif) . I'm now also getting a few HW errors..
|
|
|
|
merred (OP)
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
December 19, 2013, 03:03:45 PM |
|
By the way, BIOS switch 1 or default?
|
|
|
|
rocketron
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
December 19, 2013, 03:06:09 PM |
|
aslym mode ![Wink](https://bitcointalk.org/Smileys/default/wink.gif) 880 mhz bios
|
|
|
|
merred (OP)
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
December 19, 2013, 03:30:42 PM |
|
Yes i'm in the same mode... Grrrr ![Cry](https://bitcointalk.org/Smileys/default/cry.gif)
|
|
|
|
rocketron
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
December 19, 2013, 03:41:06 PM |
|
could also be your cpu not providing enough bandwidth to run the gpus, bear in mind I am running on X79 with a I7 3970X
|
|
|
|
okimzti
Member
![*](https://bitcointalk.org/Themes/custom1/images/star.gif)
Offline
Activity: 101
Merit: 10
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
December 19, 2013, 03:43:12 PM |
|
cgminer will crash if you use too high of thread-concurrency and not enough ram to support the threads. The reason why 8192 worked with 2 cards is because you are using less memory with 2 cards. Adding two more gpu's with the thread-concurrency at 8192 and you are over allocating memory and cgminer wont start. Simple as that. Either run lower thread-concurrency with 6 gpu's or get more ram... Also, you might benefit from reading about the internet. All this info is freely available ![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif)
|
|
|
|
merred (OP)
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
December 19, 2013, 03:54:11 PM |
|
cgminer will crash if you use too high of thread-concurrency and not enough ram to support the threads. The reason why 8192 worked with 2 cards is because you are using less memory with 2 cards. Adding two more gpu's with the thread-concurrency at 8192 and you are over allocating memory and cgminer wont start. Simple as that. Either run lower thread-concurrency with 6 gpu's or get more ram... Also, you might benefit from reading about the internet. All this info is freely available ![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif) Hello Thanks for your message. I have upgraded the ram from 2GB to 8GB. Still not enough?
|
|
|
|
rocketron
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
December 19, 2013, 04:04:38 PM |
|
in my opinion you need 16+ for 4 6990s
|
|
|
|
merred (OP)
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
December 19, 2013, 04:07:53 PM |
|
Why is that? I have only 3 x 6990
Shit looks like that i'm on AMD 12.8 I'll try 13.11 now.
|
|
|
|
merred (OP)
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
December 19, 2013, 04:50:35 PM |
|
in my opinion you need 16+ for 4 6990s
According to someone it's my PSU Which PSU did you use?
|
|
|
|
TribalBob
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
December 19, 2013, 05:46:57 PM |
|
According to someone it's my PSU
Which PSU did you use?
They are correct. Your GPU's require 750w each for minimum requirements (1000w for crossfire setup) which means your GPU's alone will need between 1750 - 2250w and then your sempron needs another 45w.
|
|
|
|
rocketron
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
December 19, 2013, 06:04:16 PM |
|
According to someone it's my PSU
Which PSU did you use?
They are correct. Your GPU's require 750w each for minimum requirements (1000w for crossfire setup) which means your GPU's alone will need between 1750 - 2250w and then your sempron needs another 45w. your wrong on specs, my rig pulls 785watts from the wall according to me meter, 2x 6990s, so for a 3rd you can add about 350watts. so his psu is fine
|
|
|
|
TribalBob
|
![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
December 19, 2013, 06:16:48 PM |
|
According to someone it's my PSU
Which PSU did you use?
They are correct. Your GPU's require 750w each for minimum requirements (1000w for crossfire setup) which means your GPU's alone will need between 1750 - 2250w and then your sempron needs another 45w. your wrong on specs, my rig pulls 785watts from the wall according to me meter, 2x 6990s, so for a 3rd you can add about 350watts. so his psu is fine Ok, then tell the companies that created his GPUs that THEIR specs are wrong, I am telling him the factory recommended system requirements for his make and brands for solo and crossfire set-ups.
|
|
|
|
|