[04:20:30] [Cypress 0] Error: Device returned hash with difficulty < 1 Unusable for P2Pool, then? Do you only get that for p2pool? I only get that error when the hardware itself is freaking out due to bad clocks. edit: iirc, p2pool uses >1 difficulty shares, not <1. |
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There are so many misused phrases in this thread. Phoenix kernel? What is this I don't even
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Jim has convinced me to run at 300 - box is dead stable today - albeit with a tad more power consumption, heat and lowered hashes...
you say you're getting lower hashes with 300 ram. that sounds like you were using worksize=128. use 256, its faster than 128 for the 300-380 ram range. |
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I tried installing AMD APP 2.6 again and it just does the same thing, it deletes stuff and makes the miners GUI/Phoenix display that i have no OpenCL divices, i have Intel OpenCL Installed too by the way. All the Motherboard chipset drivers installed, i have no idea whats wrong here, my AMD Sempron rig is acting the same way it's not installing 2.6 (The installer literally installs for 2-3 seconds and says it dones) after a restart same message "No supported devices, after i "try" to install 2.6 i have to completly uninstall my drivers and reinstall everything all over again because 2.1 will not install it's core files.
afaik, intel opencl is only for intel cpu tasks; might work for other hardware (amd cpu, amd gpu) but would likely be highly unpotimal and slow. same for amd app, its aimed for amd gpus, and likely is much slower for any other hardware. this is mostly educated guessing though |
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Nevermind i think (after all this frustraiting time) iv'e got a huntch
I have a feeling because my rig doesn't have a AMD processor i can't use "AMD APP SDK" meaning the only thing i can use is an old ATI Stream SDK.
Wrong. I have intel in half my rigs, amd app sdk works fine. you have a different problem. driver sweeper won't uninstall sdk, you have to find the dlls manually and delete them Well let's narrow it down, are you using GUIMiner? I used guiminer with 2.6 and 2.1, but you need 2 sdks installed in order for guiminer to see 2.1. I now use phoenix 2.0 beta which wont work with guiminer, but thats besides the point |
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Reinstalled windows. The only way I could get the thing to work was to install 11.6 drivers fully, then uninstall them(without using driver sweeper, just the amd uninstall thing), then reboot, install 11.12/12.1 and then install SDK 2.1. If I went with 11.12/12.1 directly the miners won't start.
Anyways, it's the same with 11.12 than with 12.1, so all of that was for nothing lol.
depending on what miner you use, you will need to have another sdk installed along side of 2.1 for your miners to see 2.1; they probably look for the sdk in a specific path and 2.1 uses a different path than 2.4-2.6 which is why the two can be installed on the same system, but 2.1 has to be installed second since some people say installed 2.1 first and something newer second will uninstall 2.1. otherwise I don't know, your system is bugged. |
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Nevermind i think (after all this frustraiting time) iv'e got a huntch
I have a feeling because my rig doesn't have a AMD processor i can't use "AMD APP SDK" meaning the only thing i can use is an old ATI Stream SDK.
Wrong. I have intel in half my rigs, amd app sdk works fine. you have a different problem. driver sweeper won't uninstall sdk, you have to find the dlls manually and delete them |
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you def have room for improvement. 5870 can do about 396 at stock core speed (memory underclocked of course, sitting at 330 atm), and about 503 at 1100 core. you should be able to extrapolate a "theoretical" mhash for each gpu core using those numbers since mhash almost always scales linearly with core
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Cool, gained 100 mhash on a 6-card 5870 rig by dropping from 300 to 160.
hmm, weird. I started looking for "magic" memory for my one 5870 that I wanted to mess around with in 1 mhz increments starting at 100mhz. I got up to 222 before seeing severe stability problems (crashes, miner errors, bsod) and stopped for tonight around 250. you can see my findings at https://docs.google.com/spreadsheet/ccc?key=0AjXdY6gpvmJ4dEo4OXhwdTlyeS1Vc1hDWV94akJHZFE&hl=en_US#gid=0also have an initial graph here too if you dont want to look at numbers. I plan on doing vectors with worksizes of 64, 128, and 256 at low memory clocks, and vectors4 with the same worksizes at near-stock memory clocks. Any other situation is just entirely unoptimal with the 5870 in question. It may hold true for other VLIW5 hardware, probably different with VLIW4 hardware, and likely radically different with GCN hardware since I heard non-vectors is fastest with GCN. Using Windows 7 x64, driver 12.1, 2.1 SDK, Phoenix 2.0.0 beta, phatk2 2.2 AGGRESSION=14, Radeon 5870 @ 1035 core  |
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I never had to crossfire, ever, and I have mixed 5830 + 5870. Dont need dummy plugs since driver 11.7. best sdk for 5xxx is 2.1
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FWIW, I also had low gpu usage while using 12.1 + 2.1 SDK, someone mentioned 11.12 so I tried it and wala 99% gpu.
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So this new kernel should be used with 2.6 or 2.1 sdk?
interested in this too. i'd prefer an improvement to my miners using 2.1 sdk. |
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Are you using pci-e ribbon cable extenders? You might have bad cables. I had random restarts for a few months, always thought it was a power problem, but it wasnt. I got rid of them and plugged them directly into the board and wala, no more restarts. I'm going to have to find higher quality cables.
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So I see the thread title got changed to "seeing improvement" meaining its faster than current phatk2. Could you host the files somewhere so I can plug them into phoenix2 and see how much faster? There are so many code changes in this thread I have no clue what to copy paste, so I'd appreciate it if you had it uploaded somewhere  |
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Thanks, turns out it was just a youtube tab I had open that wasn't actually playing anything...
Sent you a small tip (it's not much but I've only just started into mining and it's gonna be like 2 weeks for my other GPU RMA; assuming they don't take longer).
NP, thanks for the buck. Yeah you're better off turning off hardware acceleration for any sort of video playback. you can right click a youtube video to turn off video acceleration for all flash applets. DXVA is also hardware acceleration used for video playback such as bluray and certain video codecs in your video player of choice and sets the GPU to perf level 1 (overrides perf level 2). Switching to software decoding shouldn't be a problem as long as you got a half decent CPU for decoding 1080p videos. Anything less can be decoded by a 1.6ghz single core celeron, current generation of course. |
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Had it working after getting help in my other thread, but then just a day or two ago things started acting up in GUIMiner as far as "Speed" and "Accepted" statuses not updating or just sitting on "connecting..." instead of showing hash speed even though it was mining. I haven't made any hardware/software changes. Tried switching over to cgminer to see if it'd be better since there are threads about GUIMiner not working for others as it did before. Now it would seem that GPU0 is only putting out half the mhash it should be. Also, will the overclock settings done in cgminer reset to defaults once cgminer is closed? Just curious but my settings are stable for mining/browsing but if I decide to game those same settings will cause my computer to lock up. Screenshots of GPU0 & GPU1 (I've also tried changing the engine/memory/voltage settings for GPU1 in cgminer and it says that it's successful but it still displays 400/900 and 1v):  yeah..... your "slow" gpu is definitely in a different performance level. it needs to be in perf level 2 to run full speed, that looks like perf level 1, which is used for basic hardware accelleration, such as youtube videos. Close all your browsers and any videos that may be using hardware acceleration, or turn off hardware acceleration of videos. |
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thats an interesting idea, those extender cables are pretty chincy , I have had to resolder serveral of them , they are super fragile
what boggles my mind is where the heck does the 127.5 c and 0 RPM come from? why that exact reading which is of course completely incorrect, if you look at the gpu thats giving that reading the fan is spinning fine and the card is not hot to the touch
GPU Caps Viewer reports 127.5c when my GPU's are subzero (HWInfo64 and trixx reports it correctly with a - sign), but thats probably not the case for you. |
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multi-rail gpus scare me because I never know if I'm load balancing correctly; i'd rather just spend the extra $30 to get a single rail psu that does 100 amps on 12v
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