Hi,
I ordered 4 sigle BFL Asic but nobody know if and when will be shipped.
So I decided to build a rig for mining litecoin, a case with:
#1 MSI 990FXA-GD80V2 AM3+ AMD 990FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard
#3 Sapphire Radeon Vapor-X HD 7970 GHz OC 3GB DDR5 DL-DVI-I/SL-DVI-D/HDMI/DP PCI-Express Graphics Card
I suppose i need #2 dummy plug.
Probably I need 1 Extender Cable w/ Molex but I don't know which one.
It seems one extender is needed because the GPU is quite large.
Could anyone suggest me if and which one should I order.
Any help and suggestion or critic regarding my configuration would be greatly appreciated.
Thanks,
ChiangYay
Topic: Consolidated Litecoin Mining Guide for 5xxx, 6xxx, and 7xxx GPUs - page 17. (Read 624200 times)
April 04, 2013, 03:42:16 AM
April 04, 2013, 12:03:12 AM
I'm in the process of building a large rig with 5x7950s for LTC mining.
Which should I use for mining - Reaper or CGMiner? Is there an advantage to either? I've tried CGminer before, but never could get the configuration down (but I'm sure I could with time).
Also, if I run 5x7950 per mobo (using PCI-E powered extenders), how much RAM should I have on each rig? Taco's initial statement said about 1.5GB per 7950 (due to number of shaders)... So I would need ~12GB of RAM for 5 cards? Is this the case? Would CGMiner have similar requirements?
Thanks!
Which should I use for mining - Reaper or CGMiner? Is there an advantage to either? I've tried CGminer before, but never could get the configuration down (but I'm sure I could with time).
Also, if I run 5x7950 per mobo (using PCI-E powered extenders), how much RAM should I have on each rig? Taco's initial statement said about 1.5GB per 7950 (due to number of shaders)... So I would need ~12GB of RAM for 5 cards? Is this the case? Would CGMiner have similar requirements?
Thanks!
April 03, 2013, 03:22:50 PM
I need some help
I have 1x 5770 mining away and wont budge past 140KH/s any advise on what to alter change or do. Using cgminer and also bfgminer latest versions
I have 1x 5770 mining away and wont budge past 140KH/s any advise on what to alter change or do. Using cgminer and also bfgminer latest versions
if you're using cgminer I would suggest the following (note I have 2 5770 cards in this rig):
Code:
C:\Users\Arijan\Downloads\cgminer-2.11.3-win32\cgminer-2.11.3-win32>type ltc.bat
cgminer.exe --scrypt --api-listen --api-network -o stratuqm+tcp://notroll.in:3333 -u y -p x --thread-concurrency 3000 --worksize 256 -I 19
cgminer.exe --scrypt --api-listen --api-network -o stratuqm+tcp://notroll.in:3333 -u y -p x --thread-concurrency 3000 --worksize 256 -I 19
I'm sure it would work in linux as well.
Here are results which I'm sure could be improved on (on 850/1200 it runs at 330 MH/s stable, no HW errors, also please note that the faster card has less RAM - 512MB however it is not used by the system i.e. no monitors are plugged into it):
Code:
Summary of runtime statistics:
[2013-04-03 19:04:45] Started at [2013-04-02 18:32:42]
[2013-04-03 19:04:45] Pool: http://stratum+tcp://notroll.in:3333
[2013-04-03 19:04:45] Runtime: 24 hrs : 32 mins : 2 secs
[2013-04-03 19:04:45] Average hashrate: 330.2 Kilohash/s
[2013-04-03 19:04:45] Solved blocks: 0
[2013-04-03 19:04:45] Best share difficulty: 3.85M
[2013-04-03 19:04:45] Queued work requests: 3096
[2013-04-03 19:04:45] Share submissions: 12872
[2013-04-03 19:04:45] Accepted shares: 11914
[2013-04-03 19:04:45] Rejected shares: 958
[2013-04-03 19:04:45] Accepted difficulty shares: 414106
[2013-04-03 19:04:45] Rejected difficulty shares: 29830
[2013-04-03 19:04:45] Reject ratio: 7.4%
[2013-04-03 19:04:45] Hardware errors: 0
[2013-04-03 19:04:45] Efficiency (accepted / queued): 385%
[2013-04-03 19:04:45] Utility (accepted shares / min): 8.09/min
[2013-04-03 19:04:45] Work Utility (diff1 shares solved / min): 302.06/min
[2013-04-03 19:04:45] Discarded work due to new blocks: 4924
[2013-04-03 19:04:45] Stale submissions discarded due to new blocks: 142
[2013-04-03 19:04:45] Unable to get work from server occasions: 19
[2013-04-03 19:04:45] Work items generated locally: 10126
[2013-04-03 19:04:45] Submitting work remotely delay occasions: 10
[2013-04-03 19:04:45] New blocks detected on network: 1271
[2013-04-03 19:04:45] Summary of per device statistics:
[2013-04-03 19:04:45] GPU0 | (5s):190.5K (avg):188.8Kh/s | A:6909 R:526 HW:0 U:4.7/m I:19
[2013-04-03 19:04:45] GPU1 | (5s):140.4K (avg):141.3Kh/s | A:5005 R:432 HW:0 U:3.4/m I:19
S[h2u0t1d3o-w0n4 -s0i3g n1a9l: 0r4e:c4e5i]v eSdt.r
[2013-04-03 19:04:45] Started at [2013-04-02 18:32:42]
[2013-04-03 19:04:45] Pool: http://stratum+tcp://notroll.in:3333
[2013-04-03 19:04:45] Runtime: 24 hrs : 32 mins : 2 secs
[2013-04-03 19:04:45] Average hashrate: 330.2 Kilohash/s
[2013-04-03 19:04:45] Solved blocks: 0
[2013-04-03 19:04:45] Best share difficulty: 3.85M
[2013-04-03 19:04:45] Queued work requests: 3096
[2013-04-03 19:04:45] Share submissions: 12872
[2013-04-03 19:04:45] Accepted shares: 11914
[2013-04-03 19:04:45] Rejected shares: 958
[2013-04-03 19:04:45] Accepted difficulty shares: 414106
[2013-04-03 19:04:45] Rejected difficulty shares: 29830
[2013-04-03 19:04:45] Reject ratio: 7.4%
[2013-04-03 19:04:45] Hardware errors: 0
[2013-04-03 19:04:45] Efficiency (accepted / queued): 385%
[2013-04-03 19:04:45] Utility (accepted shares / min): 8.09/min
[2013-04-03 19:04:45] Work Utility (diff1 shares solved / min): 302.06/min
[2013-04-03 19:04:45] Discarded work due to new blocks: 4924
[2013-04-03 19:04:45] Stale submissions discarded due to new blocks: 142
[2013-04-03 19:04:45] Unable to get work from server occasions: 19
[2013-04-03 19:04:45] Work items generated locally: 10126
[2013-04-03 19:04:45] Submitting work remotely delay occasions: 10
[2013-04-03 19:04:45] New blocks detected on network: 1271
[2013-04-03 19:04:45] Summary of per device statistics:
[2013-04-03 19:04:45] GPU0 | (5s):190.5K (avg):188.8Kh/s | A:6909 R:526 HW:0 U:4.7/m I:19
[2013-04-03 19:04:45] GPU1 | (5s):140.4K (avg):141.3Kh/s | A:5005 R:432 HW:0 U:3.4/m I:19
S[h2u0t1d3o-w0n4 -s0i3g n1a9l: 0r4e:c4e5i]v eSdt.r
April 03, 2013, 10:01:51 AM
I have 3x7950 in 1 mobo, sometimes the card number 2 crash (amd driver stop responding). I already try another gpu/mem clock. But sometime it still crash. How to diagnose the problem?. Im using cgminer (guiminer), the reason in the console only, card was idle 60s (sick).
thx
thx
April 03, 2013, 07:13:35 AM
Help needed to configure 1x gigabyte 7870 Need thread and shadeer settings and best ratio to use. Using cgminer and advice will be grateful of this thx
April 03, 2013, 12:10:06 AM
Hey guys,
I have 2 5850's getting 300 khash/s each with intensity of 18 .. 725 core / 1000 mem is this the best I can do from the cards? As it seems to lag my entire computer with it mining..
But I recently got a 7770 but the performance is really low only 170 khash/s any advice on how to increase it or perhaps a better card for under $200?
Thanks!
I have 2 5850's getting 300 khash/s each with intensity of 18 .. 725 core / 1000 mem is this the best I can do from the cards? As it seems to lag my entire computer with it mining..
But I recently got a 7770 but the performance is really low only 170 khash/s any advice on how to increase it or perhaps a better card for under $200?
Thanks!
April 02, 2013, 08:11:42 PM
Seems others are reporting this problem too, but...
Two 7970's indicate a hashrate of over 1 mh/s, but litecoinpool indicates my worker is at ~70 k/hashes. WTF?
Two 7970's indicate a hashrate of over 1 mh/s, but litecoinpool indicates my worker is at ~70 k/hashes. WTF?
Im having this same problem just now, one of my 7950 indicating false kh/s on the pool.vi solved it just by restarting the computer. Btw im using guiminer 0.03 + cgminer.
April 02, 2013, 07:37:36 PM
My guess is that something is very wrong with 2.11.3 cgminer, switch to reaper.
April 02, 2013, 07:14:03 PM
Seems others are reporting this problem too, but...
Two 7970's indicate a hashrate of over 1 mh/s, but litecoinpool indicates my worker is at ~70 k/hashes. WTF?
Two 7970's indicate a hashrate of over 1 mh/s, but litecoinpool indicates my worker is at ~70 k/hashes. WTF?
April 02, 2013, 02:01:18 AM
OK - I have 2 x GV-R797OC-3GD grinding out BTC at the moment but am moving them ASAP to LTC using CGMiner ....
Based on what I have observed, I need 2 x 3072 MB of system RAM plus adequate OS ram - the MB max is 8 GB so I might as well max it out. Unfortunately, the machine is also used as a media computer and I currently have Windows 7 Premium 32 Bit installed with 2 GB of Ram. It seems I need to upgrade to a 64 bit OS?
Would rather not dual boot as the machine is used for other purposes from time to time throughout the day. That said, based on the returns as of today, it may make sense to just jump to a dedicated rig using an Android Dongle unit.
Until that is in place I could dual boot from a USB Linux install I suppose......
Thanks in advance for your input
Based on what I have observed, I need 2 x 3072 MB of system RAM plus adequate OS ram - the MB max is 8 GB so I might as well max it out. Unfortunately, the machine is also used as a media computer and I currently have Windows 7 Premium 32 Bit installed with 2 GB of Ram. It seems I need to upgrade to a 64 bit OS?
Would rather not dual boot as the machine is used for other purposes from time to time throughout the day. That said, based on the returns as of today, it may make sense to just jump to a dedicated rig using an Android Dongle unit.
Until that is in place I could dual boot from a USB Linux install I suppose......
Thanks in advance for your input
April 02, 2013, 01:01:43 AM
Hi. my card 7970 3GB RAM 2GB.
cgminer shows 450kh and in the p2pool for some reason, only 100 kh
--intensity 13
any idea...
cgminer shows 450kh and in the p2pool for some reason, only 100 kh
--intensity 13
any idea...
March 31, 2013, 09:03:34 PM
Just a heads up for new scrypt miners. scrypt needs higher memory speeds. It seems on most cards the memory gets its power from the PCI-E connector: motherboards that could fed cards with heavily downclocked memory may not be able to do so with cards mining scrypt...
Just learned this the hard way yesterday, glad I have spare motherboards and powered extenders...
Just learned this the hard way yesterday, glad I have spare motherboards and powered extenders...
You're not the first one
Yeah, maybe it should be included in the guide as a warning. Many former BTC miners are accustomed to run their rigs with low memclocks and when they turn to LTC they simply don't think about the possible danger.
March 31, 2013, 08:44:57 PM
Just a heads up for new scrypt miners. scrypt needs higher memory speeds. It seems on most cards the memory gets its power from the PCI-E connector: motherboards that could fed cards with heavily downclocked memory may not be able to do so with cards mining scrypt...
Just learned this the hard way yesterday, glad I have spare motherboards and powered extenders...
Just learned this the hard way yesterday, glad I have spare motherboards and powered extenders...
March 31, 2013, 08:32:27 PM
Just wanted to mention for people saying Litecoin is really hard to mine, TacoTime ported GUIMiner to Litecoin: https://bitcointalksearch.org/topic/guiminer-scrypt-a-guiminer-fork-for-mining-scrypt-chains-150331
And I made an extremely simple mining program as well: https://bitcointalksearch.org/topic/easyltc-the-easiest-litecoin-guiminer-162708
And I made an extremely simple mining program as well: https://bitcointalksearch.org/topic/easyltc-the-easiest-litecoin-guiminer-162708
March 29, 2013, 04:34:22 PM
all utilities included in my condo fees, so no worries about powah costs, but yeah, probably not worth the stress it's putting on my CPU....although i've been considering going to the X8, so if my X6 dies, i'll just upgrade. 
March 29, 2013, 03:48:06 PM
oh...hmm...lemme try that. :-)
This shit ain't as simple as BTC mining, as i'm discovering!
anecdotally (yeah its not a word but it fits lol), I fired up a non configured bitcoin miner on one of my rigs yesterday and it was hashing for more than my litecoin miner which took hours upon hours to configure ".". This shit ain't as simple as BTC mining, as i'm discovering!
March 29, 2013, 03:37:52 PM
Tipped ya a bit-nickel, gyverlb - Thanks!
Thanks for the tip.
Note that if your processor only gives 13kH/s you probably don't want to mine with it. It's probably using more than 100W which is ~70kWh each month. Depending on where you live it probably costs you between $5 and $15 mining LTC with it each month.
With 13kH/s at the current difficulty, you'll make ~4LTC each month. At current LTC prices it's less than $3.
LTC CPU mining is nearly dead...
March 29, 2013, 03:25:55 PM
Tipped ya a bit-nickel, gyverlb - Thanks!
March 29, 2013, 03:18:45 PM
OOOHHH yeah, now it's doin some shidizzle. getting about 180Kh/s on cgminer, but only 13Kh/s on cpu mining (AMD X6 1055T)
run_p2pool.exe now shows around 65Kh/s and going up every cycle.... nice. so, hopefully, sohortly, i will see that value get up to around 190,000h/s (CPU+GPU combined)
90Kh/s so far, and far far far less rejects...7:1 Accepted:rejected...much better than the 2:1 i was getting before.
and home network latency has dropped to well below 100ms across the whole thing.
so, just that one changed fixed everything up. woot. well, i also increased my thread-concurrency value to 4800.
looks like i'm capped out around 197Kh/s for combined CPU/GPU
decent enough for a hobby miner, i guess. :-)
Thanks for the tips!
run_p2pool.exe now shows around 65Kh/s and going up every cycle.... nice. so, hopefully, sohortly, i will see that value get up to around 190,000h/s (CPU+GPU combined)
90Kh/s so far, and far far far less rejects...7:1 Accepted:rejected...much better than the 2:1 i was getting before.
and home network latency has dropped to well below 100ms across the whole thing.
so, just that one changed fixed everything up. woot. well, i also increased my thread-concurrency value to 4800.
looks like i'm capped out around 197Kh/s for combined CPU/GPU
decent enough for a hobby miner, i guess. :-)
Thanks for the tips!
March 29, 2013, 03:04:07 PM
oh...hmm...lemme try that. :-)
This shit ain't as simple as BTC mining, as i'm discovering!
This shit ain't as simple as BTC mining, as i'm discovering!
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