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Title: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: akipfer on April 22, 2013, 07:40:03 PM my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining LTC
HI so i have 2 XFX HD7950, on Guiminer, CGminer i can't, just can't get even close to 500kh/s EACH GPU what i'm doing wrong? here's the .bat color 0A cgminer --scrypt -o notroll.in:6332 -u akipfer.i53330 -p 12345 -I 17 --shaders 1792 --intensity 15 --worksize 256 -g 2 --thread-concurrency 21712 pause i keep the user/password, what can happens if some one mine with those? also, when start mining, after feews seconds, i don't know, 20s maybe less, my desktop starts glitching, lots of visual artifacts, the ones like when doing Overclock and getting into a game, some like that i guess.. Any one knows wtf is happening? afaik each 7950 Should do 500 to 550 KH/s with stock clocks, i'm right? Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: ribal on April 22, 2013, 07:43:44 PM my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining LTC HI so i have 2 XFX HD7950, on Guiminer, CGminer i can't, just can't get even close to 500kh/s EACH GPU what i'm doing wrong? here's the .bat color 0A cgminer --scrypt -o notroll.in:6332 -u akipfer.i53330 -p 12345 -I 17 --shaders 1792 --intensity 15 --worksize 256 -g 2 --thread-concurrency 21712 pause i keep the user/password, what can happens if some one mine with those? also, when start mining, after feews seconds, i don't know, 20s maybe less, my desktop starts glitching, lots of visual artifacts, the ones like when doing Overclock and getting into a game, some like that i guess.. Any one knows wtf is happening? afaik each 7950 Should do 500 to 550 KH/s with stock clocks, i'm right? My settings for 7950 XFX are "--intensity 20 --worksize 256 -g2 --thread-concurrency 21712" and it gets ~600 khash depending on clocks. You could also try to undeclock them slightly to see if it helps for artifacts. Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: 237 on April 22, 2013, 07:59:54 PM You should have a clock ratio for GPU/MEM clock of at least 0.7, best
results with 0.57 (0.57 for example GPU 900MHz --> MEM 1,580 MHz). Also if you are having problems with artifacts, i am sure you are using the Catalyst 13.x Driver. Try for example 12.6 to get rid of artifacts while mining. (worked for me at least) Edit: Try 825 GPU and 1,450 MEM clocks at I 19. That should give you almost exact 500KH/s Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: cannonfodder on April 22, 2013, 08:18:50 PM Obviously every card is different, but my settings here give me 620kh/s on each card. Using 12.8 drivers and OC'd to 1095/1575, voltage dropped to 975.
--intensity 18 --thread-concurrency 24000 -w 128 Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: akipfer on April 22, 2013, 08:37:24 PM You should have a clock ratio for GPU/MEM clock of at least 0.7, best thx for the help, but i don't want to OC, not now at least...results with 0.57 (0.57 for example GPU 900MHz --> MEM 1,580 MHz). Also if you are having problems with artifacts, i am sure you are using the Catalyst 13.x Driver. Try for example 12.6 to get rid of artifacts while mining. (worked for me at least) Edit: Try 825 GPU and 1,450 MEM clocks at I 19. That should give you almost exact 500KH/s can u send me the 12.6 driver? on amd.com only 13.x drivers now :( if i get at lease, 500 kh/s each gpu, i would be way more happy EDIT -> i forgot to say, im have two but without crossfire, i don't have the crossfire cable right now, only sli :( maybe is that? Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: flound1129 on April 22, 2013, 08:40:37 PM You can download the old drivers from AMD's site.
Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: akipfer on April 22, 2013, 08:48:36 PM You can download the old drivers from AMD's site. i didn't find, cau u give me url for that?edit -> Found on guru3D.com let's hope that works, let's hope this fix the two of my problems ;D Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: akipfer on April 23, 2013, 12:47:44 AM turns out...
that didn't work im still so so sad ;( starting to get tired of this too, i try all, even get one of the GPU out of my motherboard(ASUS 8Z68-v PRO/GEN3) here is my sys specs i5 3330 motherboard ASUS 8Z68-v PRO/GEN3 (sli/crossfire ready) 1000w PSU from OCZ ZX Series 80+ Stamp certified 8Gigs DDR3 Dual Channel Plus DvD Writer. who cares? haha. so still can't pass 370-400mh/s ltc mining EACH CARD(only one plugged in right now, as said before) is my sys spec a piece of shit for mining? i may use for gaming too, but mostly for mining(if i can get it to with 100% hash/s Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: Gazylion on April 23, 2013, 12:57:27 AM turns out... that didn't work im still so so sad ;( starting to get tired of this too, i try all, even get one of the GPU out of my motherboard(ASUS 8Z68-v PRO/GEN3) here is my sys specs i5 3330 motherboard ASUS 8Z68-v PRO/GEN3 (sli/crossfire ready) 1000w PSU from OCZ ZX Series 80+ Stamp certified 8Gigs DDR3 Dual Channel Plus DvD Writer. who cares? haha. so still can't pass 370-400mh/s ltc mining EACH CARD(only one plugged in right now, as said before) is my sys spec a piece of shit for mining? i may use for gaming too, but mostly for mining(if i can get it to with 100% hash/s 500Mh/s or Kh/s ? Maybe you are using guiminer without scrypt... Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: akipfer on April 23, 2013, 01:03:47 AM turns out... that didn't work im still so so sad ;( starting to get tired of this too, i try all, even get one of the GPU out of my motherboard(ASUS 8Z68-v PRO/GEN3) here is my sys specs i5 3330 motherboard ASUS 8Z68-v PRO/GEN3 (sli/crossfire ready) 1000w PSU from OCZ ZX Series 80+ Stamp certified 8Gigs DDR3 Dual Channel Plus DvD Writer. who cares? haha. so still can't pass 370-400mh/s ltc mining EACH CARD(only one plugged in right now, as said before) is my sys spec a piece of shit for mining? i may use for gaming too, but mostly for mining(if i can get it to with 100% hash/s 500Mh/s or Kh/s ? Maybe you are using guiminer without scrypt... if not, how to use --script with Guiminer? Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: Eb0la on April 23, 2013, 01:12:06 AM don't mine from notroll... payouts don't work
Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: Gazylion on April 23, 2013, 01:12:22 AM You are using bad mining software, guiminer is for SHA-256 not scrypt, download this one for litecoin mining (https://bitcointalk.org/index.php?topic=150331.0) ;) And change pool to for example ltcmine.ru
Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: buzzkillb on April 23, 2013, 01:17:06 AM I have 2 XFX 7950's not in crossfire. The newer one I just installed is voltage locked but I still am able to get over 500kh/s with intensity 18. The lower intensity allows me to not have any slowdown while working on the PC. I don't use Trixx, afterburner or anything besides the latest AMD beta drivers in Windows 8.
cgminer.conf Code: {Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: Gazylion on April 23, 2013, 01:21:25 AM Try to install latest stable version of drivers, maybe this will help.
Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: akipfer on April 23, 2013, 02:09:50 AM still the same, is my pc bad? i just spend almost 5K BRL(maybe 2k USD or plus)
Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: Gazylion on April 23, 2013, 02:40:12 AM Maybe something is wrong with GPUs, I have had once XFX gpu and it wasnt the best... Since then I try to avoid them.
Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: Vilepickle on April 23, 2013, 02:56:11 AM I haven't had high hashes with XFX cards hashing myself. They're not very good for it.
Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: vdek on April 23, 2013, 03:14:45 AM You should have a clock ratio for GPU/MEM clock of at least 0.7, best results with 0.57 (0.57 for example GPU 900MHz --> MEM 1,580 MHz). Also if you are having problems with artifacts, i am sure you are using the Catalyst 13.x Driver. Try for example 12.6 to get rid of artifacts while mining. (worked for me at least) Edit: Try 825 GPU and 1,450 MEM clocks at I 19. That should give you almost exact 500KH/s The Catalyst 13.1 drivers have artifacting issues, I upgraded to the Beta 13.3 drivers and all artifacting went away. Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: 237 on April 23, 2013, 08:10:32 AM You should have a clock ratio for GPU/MEM clock of at least 0.7, best results with 0.57 (0.57 for example GPU 900MHz --> MEM 1,580 MHz). Also if you are having problems with artifacts, i am sure you are using the Catalyst 13.x Driver. Try for example 12.6 to get rid of artifacts while mining. (worked for me at least) Edit: Try 825 GPU and 1,450 MEM clocks at I 19. That should give you almost exact 500KH/s The Catalyst 13.1 drivers have artifacting issues, I upgraded to the Beta 13.3 drivers and all artifacting went away. Good to know, thanks. Will definatly try them out. Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: Rubberduckie on April 23, 2013, 09:00:26 AM You should have a clock ratio for GPU/MEM clock of at least 0.7, best results with 0.57 (0.57 for example GPU 900MHz --> MEM 1,580 MHz). Also if you are having problems with artifacts, i am sure you are using the Catalyst 13.x Driver. Try for example 12.6 to get rid of artifacts while mining. (worked for me at least) Edit: Try 825 GPU and 1,450 MEM clocks at I 19. That should give you almost exact 500KH/s The Catalyst 13.1 drivers have artifacting issues, I upgraded to the Beta 13.3 drivers and all artifacting went away. I get artifacting using 13.1 and 13.3 on both my 7950's, at first I thought it might be the cards. Having tried earlier drivers yet Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: akipfer on April 23, 2013, 02:18:03 PM Hi, so i think my PSU is weak, cause on line on she can give 104Amps, Live 2 83Amps and live 3 70Amps
Source -> http://ocz.com/consumer/psu/zx-series-850w-1250w-power-supply/specifications (http://ocz.com/consumer/psu/zx-series-850w-1250w-power-supply/specifications) of u look at that Ocz Page, it says that... so should be atleast 110-120Amps for each card i supose, if true that would explain why can't keep up both with full hash rates. When only on up, still no full hash rates, BUT little more then usual. any advice in a Good PSU that can handle 2x7950 FULL SPEED 24/7/31 for mining i thinking in throwing another 7950, so give me 2 options, for 2 of my cards, and in case that i use 3 i need a more powerful PSU. Sorry for long text buddies. thx for all by now Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: balu on April 23, 2013, 02:21:23 PM The Corsair HX series have one of the best efficiency rates (around 90% under half load) on the market. Though I'd only power a maximum of 3 7950s with it.
Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: eule on April 23, 2013, 02:32:14 PM Trivial question, but did you check temps? My Asus 5770 has a stupid fan profile beingint the card over 100°C if i don't manually set the fan speed. Afterburner ftw.
Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: Shaban on April 23, 2013, 02:53:46 PM Check your temps, on my first rig I would overheat causing my speeds to drop drastically. Now I have two rigs each running 3x7950s and I get the temps to stay in the 70s or low 80s and I get up to 700Kh/s per card. I also use reaper miner
Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: akipfer on April 23, 2013, 03:03:46 PM so if XFX is not good for it, i think is to late for my self :(
shame on me :( anyone wanna trade with me? ps: I live in Brazil HAHA, no good hã? ;d Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: Gazylion on April 23, 2013, 03:08:05 PM Hi, so i think my PSU is weak, cause on line on she can give 104Amps, Live 2 83Amps and live 3 70Amps Source -> http://ocz.com/consumer/psu/zx-series-850w-1250w-power-supply/specifications (http://ocz.com/consumer/psu/zx-series-850w-1250w-power-supply/specifications) of u look at that Ocz Page, it says that... so should be atleast 110-120Amps for each card i supose, if true that would explain why can't keep up both with full hash rates. When only on up, still no full hash rates, BUT little more then usual. any advice in a Good PSU that can handle 2x7950 FULL SPEED 24/7/31 for mining i thinking in throwing another 7950, so give me 2 options, for 2 of my cards, and in case that i use 3 i need a more powerful PSU. Sorry for long text buddies. thx for all by now Buy 2x600W (2x576W on 12V lines) BEST PRICE for QUALITY Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: akipfer on April 25, 2013, 02:58:25 PM What driver version are u using? cause i'm using 13.1(also having artifacts on screen while mining, should i be wory about the artifacts on screen?)
i can't pass 410mh/s each card on BTC mining, or 410kh/s on LTC mining...any advise? here is my cgminer.conf Code:
i use same worker for both GPU in ONE cgminer instance, getting about 800mh/s with both cards all together. is my PSU good for at least this two GPUs? its a OCZ ZX Series 1000w link -> http://ocz.com/consumer/psu/zx-series-850w-1250w-power-supply/specifications (http://ocz.com/consumer/psu/zx-series-850w-1250w-power-supply/specifications) the guy(my friend, also onwer of the store tells me can handdle 3 GTX 580, so it is amonster afaik, right? Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: Shaban on April 25, 2013, 03:46:44 PM What driver version are u using? cause i'm using 13.1(also having artifacts on screen while mining, should i be wory about the artifacts on screen?) i can't pass 410mh/s each card on BTC mining, or 410kh/s on LTC mining...any advise? here is my cgminer.conf Code:
i use same worker for both GPU in ONE cgminer instance, getting about 800mh/s with both cards all together. is my PSU good for at least this two GPUs? its a OCZ ZX Series 1000w link -> http://ocz.com/consumer/psu/zx-series-850w-1250w-power-supply/specifications (http://ocz.com/consumer/psu/zx-series-850w-1250w-power-supply/specifications) the guy(my friend, also onwer of the store tells me can handdle 3 GTX 580, so it is amonster afaik, right? Change your intensity to 13 and your worksite to 256 This is what I have for 3 7950s and I get an average of 600Kh/s each Code: {Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: txmasut on April 25, 2013, 03:53:06 PM You should have a clock ratio for GPU/MEM clock of at least 0.7, best results with 0.57 (0.57 for example GPU 900MHz --> MEM 1,580 MHz). Also if you are having problems with artifacts, i am sure you are using the Catalyst 13.x Driver. Try for example 12.6 to get rid of artifacts while mining. (worked for me at least) Edit: Try 825 GPU and 1,450 MEM clocks at I 19. That should give you almost exact 500KH/s The Catalyst 13.1 drivers have artifacting issues, I upgraded to the Beta 13.3 drivers and all artifacting went away. I get artifacting using 13.1 and 13.3 on both my 7950's, at first I thought it might be the cards. Having tried earlier drivers yet At least for me at high intensity I get artifacting on any card. As long as temps are good you are fine. Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: akipfer on April 25, 2013, 04:04:21 PM I'm gonna try out the new Amd Radeon Catalyst Driver 13.4
Tell more later, bye! Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: akipfer on April 25, 2013, 05:06:56 PM my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining LTC HI so i have 2 XFX HD7950, on Guiminer, CGminer i can't, just can't get even close to 500kh/s EACH GPU what i'm doing wrong? here's the .bat color 0A cgminer --scrypt -o notroll.in:6332 -u akipfer.i53330 -p 12345 -I 17 --shaders 1792 --intensity 15 --worksize 256 -g 2 --thread-concurrency 21712 pause i keep the user/password, what can happens if some one mine with those? also, when start mining, after feews seconds, i don't know, 20s maybe less, my desktop starts glitching, lots of visual artifacts, the ones like when doing Overclock and getting into a game, some like that i guess.. Any one knows wtf is happening? afaik each 7950 Should do 500 to 550 KH/s with stock clocks, i'm right? Just tested new AMD Radeon Driver for my both HD7950 turns out the glicht(those supid and weird artifacts when mining) are just a driver issue... But no raise at all on mining hash/s. I'm kinda sad, i buy 2 XFX 7950 to do 1100kh/s as said on the web site.... kinda mad now ;( Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: akipfer on April 25, 2013, 05:07:34 PM Try the new 13.4 Driver amigo!
Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: Rubberduckie on April 25, 2013, 06:50:19 PM Try the new 13.4 Driver amigo! 13.4 Driver seems to have solved artifact problem for me thanks :) Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: akipfer on April 26, 2013, 02:48:53 AM Obviously every card is different, but my settings here give me 620kh/s on each card. Using 12.8 drivers and OC'd to 1095/1575, voltage dropped to 975. --intensity 18 --thread-concurrency 24000 -w 128 well, i tried to OC my xfx HD7950 with coreClock 840 and memClock at 1370 already freezes, i have to hard reset... also i can damege the card. so here i ask, how u guyz do such a monster OC on those cards? Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: akipfer on April 26, 2013, 02:53:47 AM without OC i get 390-415 mh/s or kh/s on scrypt(mhs /1000 = Kh/s basically )
anyway is way better then 200 300 each card, but still far, way far from 550, but i don't wanna risk OC, just loose my HD6850 due OC :( so only lightweight OC on this two babys ;d here is my gpy at sensors page http://gpuz.techpowerup.com/13/04/25/773.png Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: Rawted on April 26, 2013, 02:56:16 AM You should not have your monitor plugged into an active mining gpu, it can, and will, cause artifacting.
guiminer has a scrypt version as well in alpha, it works great. its posted here on the forums, search 'guiminer scrypt'. it has prebuilt in settings for a majority of video cards, and both low and high usage settings for the top end cards (7950s included). Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: akipfer on April 26, 2013, 03:23:19 AM The Corsair HX series have one of the best efficiency rates (around 90% under half load) on the market. Though I'd only power a maximum of 3 7950s with it. as i sayd, i have OCZ ZX Series 1000W PSU 80PLUS (aroud 87% efficiency)i think i sayd that before, not for sure, anyway, here i say it, i think is enoght to power up 3 HD7950, almostt 4. friend of mine use 3 GTX 580 on the same OCZ CZ 1000W series, that's why i get this ;d i notice that, all those hash/s is WITH OC without about 400 435mh/s BTC and LTC/mh/s 1000 Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: akipfer on April 26, 2013, 03:30:47 AM You should not have your monitor plugged into an active mining gpu, it can, and will, cause artifacting. guiminer has a scrypt version as well in alpha, it works great. its posted here on the forums, search 'guiminer scrypt'. it has prebuilt in settings for a majority of video cards, and both low and high usage settings for the top end cards (7950s included). why u say that? i don't understand why(by monitor u mean the software that monitors right? like GPU-z, MSI afterburner, GPU-CAPS VIEWER and so on or the actuall monitor(LCD/LED)? i'm kinda confuse now ;s thx for the help as always. Title: Re: my XFX 7950 can't reach 500-550kh/s each, also some visual glitches when mining. Post by: Shaban on April 26, 2013, 04:57:48 AM You should not have your monitor plugged into an active mining gpu, it can, and will, cause artifacting. guiminer has a scrypt version as well in alpha, it works great. its posted here on the forums, search 'guiminer scrypt'. it has prebuilt in settings for a majority of video cards, and both low and high usage settings for the top end cards (7950s included). why u say that? i don't understand why(by monitor u mean the software that monitors right? like GPU-z, MSI afterburner, GPU-CAPS VIEWER and so on or the actuall monitor(LCD/LED)? i'm kinda confuse now ;s thx for the help as always. He's saying if you have a monitor (LCD) plugged into your gpu, it will cause artifacts. It really doesn't matter though, nothing will happen... Just set your monitor to sleep after a few minutes. Also, did you buy your GPU new? If so, OC them, you should have at least a year warranty on them, so if anything were to happen, you could return them. Try the settings that I have for cgminer, with all three cards, I'm getting an average of 1,800 Kh/s... That's 600 per card. |
