Topic: XFX Radeon HD 7870 - Unable to overclock, no shares submitted - .1 BTC bounty (Read 3009 times)
April 19, 2013, 12:09:16 AM
Tried unplugging one monitor, still can't overclock
April 18, 2013, 12:37:30 AM
The 2 monitors is your problem! Disconnect one.
The Radeon has no monitors hooked up to it, and I don't care about the GT 430.
May 27, 2013, 12:12:04 PM
sapphire trixx is the best "work every time" overclocking solution I have tried.
If trixx doesn't work, ditch the nvidia card, its whats causing your problems.
Sell the nvidia card and buy another AMD.
If trixx doesn't work, ditch the nvidia card, its whats causing your problems.
Sell the nvidia card and buy another AMD.
May 27, 2013, 11:21:59 AM
Have you tried basic overclocking with overdrive in CCC or amd VISION control center?
My xfx 7870 gets to about 1150 clock and 1250 mem clock with 12% power
My xfx 7870 gets to about 1150 clock and 1250 mem clock with 12% power
May 27, 2013, 11:15:33 AM
Hello
Nvidia & ATI can't use in same time
make a bat file like
for nvidia try this one
Pool_nvidia.bat
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer.exe --scrypt -I 13 -o URL:Port -u username -p password --gpu-platform 0 -d 0 -w 256
Pool_ATI.bat
for ATI try this one
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer.exe --scrypt -I 13 -o URL:Port -u username -p password --gpu-platform 1 -d 0 -w 256 -g 1 --thread-concurrency 8192
and overcolock you can try it in the DOS Command Box
if works you can try -g 1 to -g 2 and -i upto 16 keep trying find your best setting
thank you
MY BTC Add
14QExrNJB3R6oMYLFRVsQd1esRZUhMMycY
Nvidia & ATI can't use in same time
make a bat file like
for nvidia try this one
Pool_nvidia.bat
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer.exe --scrypt -I 13 -o URL:Port -u username -p password --gpu-platform 0 -d 0 -w 256
Pool_ATI.bat
for ATI try this one
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer.exe --scrypt -I 13 -o URL:Port -u username -p password --gpu-platform 1 -d 0 -w 256 -g 1 --thread-concurrency 8192
and overcolock you can try it in the DOS Command Box
if works you can try -g 1 to -g 2 and -i upto 16 keep trying find your best setting
thank you
MY BTC Add
14QExrNJB3R6oMYLFRVsQd1esRZUhMMycY
May 27, 2013, 10:51:48 AM
Have you found a solution to this?
April 18, 2013, 04:46:56 AM
I use the following settings. Its very stable. Not a 78xx but a 57xx
The temp management in CGMiner is key... Also the -I setting can drastically improve or hinder your preformance. around -I 15 is a sweetspot for my card. Extremely high MHash even GHash! and then drops off. -I 14 gives much more stable results. even with the -I 15 and reports of GHash/sec (on BTC, not LTC) the actual rate reported by the pool and the average in client is about 200-300MHash a sec, which is not bad at all from my 'stable' 160MHash
LTC Performance with above settings for me is like 60-80Khash, but its a 2 generation older card then yours
Code:
--scrypt --gpu-threads 2 --shaders 800 --thread-concurrency 2400,2400 -I 9 --auto-fan --auto-gpu --round-robin --gpu-engine 150-725 --gpu-memclock 300-1200 --gpu-fan 70-100 --verbose --temp-target 72 --temp-overheat 78 --temp-cutoff 84 -w 256
The temp management in CGMiner is key... Also the -I setting can drastically improve or hinder your preformance. around -I 15 is a sweetspot for my card. Extremely high MHash even GHash! and then drops off. -I 14 gives much more stable results. even with the -I 15 and reports of GHash/sec (on BTC, not LTC) the actual rate reported by the pool and the average in client is about 200-300MHash a sec, which is not bad at all from my 'stable' 160MHash
LTC Performance with above settings for me is like 60-80Khash, but its a 2 generation older card then yours
April 18, 2013, 12:49:11 AM
I'm sure he means disconnect one monitor from the GT 430
You can reconnect it you find that you can overclock the Radeon.
You can reconnect it you find that you can overclock the Radeon.
April 17, 2013, 10:58:29 PM
The 2 monitors is your problem! Disconnect one.
April 17, 2013, 06:41:02 PM
Now that you are up and running I would like to claim the bounty!
I'll send it to the address in your sig, but I still need help with overclocking
Thanks. And as I said before I use MSI afterburner for overclocking.
Manually tuning --thread-concurrency, and -I instead of --shaders, even using --gpu-engine
I was also thinking that because you have placed the XFX as a third PCI Express card into your motherboard that the slot might not be running at the full x16 speed.
There are also other hardware issues that could be involved. Overheating, GPUs clock somehow set low, ...
April 17, 2013, 01:01:10 AM
Now that you are up and running I would like to claim the bounty!
April 16, 2013, 12:38:24 AM
Turns out I need intensity at 11 for no HW errors. It works, but it's mining extremely slowly. I expected a max of 400kh/s out of this card!
Are you using the --shaders xxxx method? That will work, but you are asking the card to make a best guess at the best parameters to use. Now try --worksize xxx --gpu-threads x --intensity xx --thread-concurrency xxxx to hand optimize. April 16, 2013, 12:29:34 AM
Okay, submitting shares with the following config:
Now, I need to be able to overclock. Any help with the cgminer errors? Also, can I get more kh/s out of this card without overclocking? (--thread-concurrency, --gpu-threads?)
Now that you know that the card works using the --shaders parameter you can swap out --shaders and use a combination of:--worksize xxx --gpu-threads x --intensity xx --thread-concurrency xxxxCode:
C:\Users\Wolf\Desktop\CGMiner\cgminer.exe --scrypt --gpu-platform 1 --failover-only --url stratum+tcp://us.wemineltc.com:80 --url stratum+tcp://coinotron.com:3334 --userpass Wolf0.worker1:gpugpu01 --userpass Wolf0.worker1:gpugpu01 --shaders 1536 -I 12
Now, I need to be able to overclock. Any help with the cgminer errors? Also, can I get more kh/s out of this card without overclocking? (--thread-concurrency, --gpu-threads?)
You can experiment with various values to optimize performance, but i found for my 7750 that worksize 256 is good, --gpu-threads 1 or 2 is good, --intensity (higher is not better!) too high and you overwhelm the card with work, --thread-concurrency (this is the money maker, use multiples of shaders. Not too low or you will get no results, too high and you are asking the card to use more memory than the card has. Use someting in the order of 4 to 6 times shaders)
As for overclocking I have used MSI afterburner for years with success. Have not used cgminer's --gpu-engine
Have I forgotten anything else?
April 15, 2013, 11:44:39 PM
The number next to HW is now incrementing, but no accepted shares
HW is hardware errors. Try decrementing I (intensity) until you get no HW errors. April 15, 2013, 11:01:26 PM
1) Try increasing thread-concurrency ( use multiples of 1536).
or
2) use: --shaders 1536 -I 17 instead of: --worksize 256 --gpu-threads 1 --intensity 18 --thread-concurrency 3328
finally, try: -d 0 (explicitly states which device to use, in case it's somehow confused)
or
2) use: --shaders 1536 -I 17 instead of: --worksize 256 --gpu-threads 1 --intensity 18 --thread-concurrency 3328
finally, try: -d 0 (explicitly states which device to use, in case it's somehow confused)
April 15, 2013, 09:25:33 PM
NaN.
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