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Topic: [ANN] The First Litecoin PPS Pool (litecoinpool.org) - page 56. (Read 228559 times)

hero member
Activity: 849
Merit: 507
my hw rate is going up and causing my rejects to go up.
That's not how it works. HW errors and rejections are unrelated. The R/A ratio in the picture above is just fine for GPU mining. (Please re-read what I wrote above.)
hero member
Activity: 574
Merit: 500
Mining for the hell of it.
my hw rate is going up and causing my rejects to go up. yet i have even lowered the intinsity. I dont understand why.
sr. member
Activity: 472
Merit: 250
^ Where is there an issue?
hero member
Activity: 574
Merit: 500
Mining for the hell of it.
Could someone tell me what the issue is here.
This is what it use to be at


And this is what it is now...
hero member
Activity: 574
Merit: 500
Mining for the hell of it.
It appears that the battery back up was the issue. hashing away at an average of 1.1mh.  not bad i guess for 3 7850s
hero member
Activity: 574
Merit: 500
Mining for the hell of it.
Well i got a bigger back up and while ive been gone ive notice its dropped back down to 300ish kh and i dont know the status of the other cards as of currently. So in a few hours i will be able to see whats going on. and get the bigger battery on it.
hero member
Activity: 849
Merit: 507
well that number is up in the 1ks not good. But i think i narrowed it down to my battery backup. Either that or i fried a card already.. that would be the far right card. Cry If i reboot the computer its fine but my battery backup is overloading from the computer pulling over the rated wattage. I dont know because even me erupters are having a high number of rejects as of here lately and i got only 4 of them pluged into the computer with a fan right on top of them. This is all of a sudden. any ideas?
The R figure isn't significant in itself, it's the R/A ratio that is important; anything below 1% should be fine for GPU mining, given that some of the software latency introduced by cgminer can't be avoided, and results in additional stale shares. Assuming those rejects are stales, if you are getting more than 1% then you should try lowering the intensity a bit.
hero member
Activity: 574
Merit: 500
Mining for the hell of it.
well that number is up in the 1ks not good. But i think i narrowed it down to my battery backup. Either that or i fried a card already.. that would be the far right card. Cry If i reboot the computer its fine but my battery backup is overloading from the computer pulling over the rated wattage. I dont know because even me erupters are having a high number of rejects as of here lately and i got only 4 of them pluged into the computer with a fan right on top of them. This is all of a sudden. any ideas?
hero member
Activity: 849
Merit: 507
What does the R:0 mean?
That's the number of shares rejected by the pool, which is the sum of stale and invalid submitted shares. It doesn't include shares detected as HW errors because those are not submitted.
A description of the various abbreviations is available in the README file distributed with cgminer.
hero member
Activity: 574
Merit: 500
Mining for the hell of it.
What does the R:0 mean?
hero member
Activity: 849
Merit: 507
Okay I got some time to play with it alittle. How does this look?
That's much better.
Now if you could relocate one of those two cards on the right (the ones that are very close together) by using a riser I believe the temperature of GPU No. 2 would drop significantly, and you wouldn't have to run the fans at 100%. A temperature of 75°C is generally considered good enough.
hero member
Activity: 574
Merit: 500
Mining for the hell of it.
Okay I got some time to play with it alittle. How does this look?

hero member
Activity: 574
Merit: 500
Mining for the hell of it.
That's what I'm trying to do. Did you have a look at those links?
Thread concurrency is usually the most important setting to get right (as you could find out by reading the first link). At the time of this writing, the Wiki (second link) lists the following examples for the ATI 7850:
Code:
--thread-concurrency 8192
--thread-concurrency 27164
--thread-concurrency 16000
You should try those out and see which one works best for you. The objective is to maximize the hash rate while keeping HW errors at 0. Once that's done you can start playing with the intensity parameter.

Ill try that once i get to the miner. What would be a good intensity to drop down to for temp to start to get a better reading? I had read the wiki and it still kinda confuse me.
tehre are 6- 7850's with different info.

Alittle more info that may be helpful
Core Clock - 900MHz
Stream Processors - 1024 Stream Processors
Effective Memory Clock -1200MHz (4.8Gbps)
Memory Size - 1GB
Memory Interface - 256-bit
Memory Type - GDDR5
RAMDAC -400 MHz
hero member
Activity: 849
Merit: 507
Just to make it clear, the basic configurations available on the website are only intended to get one started. The website also states that fine tuning is necessary to get the best results for a particular system, and kindly asks miners to read this and this.
Okay? Who here would be able to help me on this?
That's what I'm trying to do. Did you have a look at those links?
Thread concurrency is usually the most important setting to get right (as you could find out by reading the first link). At the time of this writing, the Wiki (second link) lists the following examples for the ATI 7850:
Code:
--thread-concurrency 8192
--thread-concurrency 27164
--thread-concurrency 16000
You should try those out and see which one works best for you. The objective is to maximize the hash rate while keeping HW errors at 0. Once that's done you can start playing with the intensity parameter.
hero member
Activity: 574
Merit: 500
Mining for the hell of it.
The config I am currently running is the config i took from the pools website. I am still only getting around 250Kh
Just to make it clear, the basic configurations available on the website are only intended to get one started. The website also states that fine tuning is necessary to get the best results for a particular system, and kindly asks miners to read this and this.

Okay? Who here would be able to help me on this?
hero member
Activity: 849
Merit: 507
The config I am currently running is the config i took from the pools website. I am still only getting around 250Kh
Just to make it clear, the basic configurations available on the website are only intended to get one started. The website also states that fine tuning is necessary to get the best results for a particular system, and kindly asks miners to read this and this.
hero member
Activity: 574
Merit: 500
Mining for the hell of it.
well i got some riser cables coming in the mail. Being Knex its easly adjustible Shocked. I will take a look at the sample config. The config I am currently running is the config i took from the pools website. I am still only getting around 250Kh
hero member
Activity: 849
Merit: 507
well i got it to drop to 60s/80s/60s and i got 4 80mm fans blowing on top.  What else can I do to drop the temps?
You could use a PCIe riser to lower the temperature of card No. 2, but that would complicate your setup a bit.
But apart from that, you almost certainly need to change the settings you're passing to cgminer in order to get rid of those HW errors. See the Wiki for some sample configurations that should work for your particular GPU model. Also make sure you are not overclocking or underclocking too much.
hero member
Activity: 574
Merit: 500
Mining for the hell of it.
well i got it to drop to 60s/80s/60s and i got 4 80mm fans blowing on top.  What else can I do to drop the temps?



This is my setup

legendary
Activity: 1148
Merit: 1001
things you own end up owning you
I think the design is one of the best out there...do not change it just keep improving it.
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