Search results

  1. A

    Ran D5 pump while dry, now case vibrates

    Thx. I think I'll hold off on buying a full backup pump, these things can last years. If one goes down I'll just limp along on my second one for a few days until a new one arrives. If I find just a cheap rotor though, that's a different story. Thx for your help.
  2. A

    Ran D5 pump while dry, now case vibrates

    Thx, where'd u see a new D5 for $70?
  3. A

    Ran D5 pump while dry, now case vibrates

    Already did that. I have a new, never used replacement D5 in there to replace the damaged pump. I'm simply thinking about how to make the damaged pump whole to have another backup on hand now. Would prefer to just buy a new rotor, but haven't been able to find anyone selling them besides...
  4. A

    Ran D5 pump while dry, now case vibrates

    It looks like what's in this link. I don't trust aliexpress at all, but that's the right replacement part...
  5. A

    Ran D5 pump while dry, now case vibrates

    It's still there and when I put a new impeller on it spins fine. By new impeller I mean I swapped a good one over to try it out from one of my good D5 pumps. What was worn from my dry run was the impeller bearing itself.
  6. A

    Ran D5 pump while dry, now case vibrates

    Alright I disassembled the pump/radiator. The bad pump clearly had the impeller rubbing against the side. The good pump had the impeller rotating perfectly centered. I replaced the bad pump with my spare, made sure to put plenty of water in the system first, and now it's humming along quietly...
  7. A

    Ran D5 pump while dry, now case vibrates

    Alright you guys have convinced me, I'll probably just stop being lazy and take it down right now. Also getting a 5900x Tuesday, could wait for that, but I think I can just pop the waterblock off the cpu, put the new one in without disconnecting the tubes.
  8. A

    Ran D5 pump while dry, now case vibrates

    I have a second pump in there, the flow won't stop even if the damaged pump stops completely. That's one of the reasons I got a dual-pump design, so I know there's always one going if one suddenly dies. I'm just wondering if the damaged pump will make debris if the impeller scrapes against the...
  9. A

    Ran D5 pump while dry, now case vibrates

    I actually have a spare D5 that I've had for a few years (warranty replacement, but while I was waiting I bought a new one). I'm just hoping not to rebuild my loop for a bit. Waiting for an EVGA 3080 hydrocool to become available, probably in 1-2 months. If the impeller is broken or gradually...
  10. A

    Ran D5 pump while dry, now case vibrates

    It spins, it pumps, just at setting 5 my case vibrates. At 3, I can't feel the case vibrating.
  11. A

    Ran D5 pump while dry, now case vibrates

    I was rebuilding my loop and thought it was a bright idea to keep the D5 running while the reservoir was empty and dump water in. I have a dual D5 pump setup. Well, the case kept rattling after that, and I eventually realized it was all from one pump. It's a variable speed D5 pump, and when I...
  12. A

    Antminer E3 : 180MH/s on Ethash

    frankly these specs are about the same as my 4x Vega 64 system. I draw 840watts for 175 mhash ethereum. My system draws a bit more power because I have a ton of watercooling pumps/fans, etc but I know that people that ran a bare bones Vega 64 in open air could use 140w for 44mhash per card...
  13. A

    Vega 64 GPU not recognized

    XFX sent me a brand new card. The new one was molded. I put it under water and all four cards are working well mining ethereum. I am gradually going to find the undervolting limits but currently have them at 0.85v with my card driving the display at 0.875v (display driver always seems to need...
  14. A

    Vega 64 GPU not recognized

    I don't think there was actually water. The vrms had thermal tape and I left the card open to air for two days and there was still an oily residue. I think that's from the tape. The oiliness was still there. Also, if there was water, it was fresh deionized water, that shouldn't cause a...
  15. A

    Vega 64 GPU not recognized

    I had to RMA it. I put the aircooler back on. Once again, I noticed no damage. The RADEON logo on the cooler would light up but no orange light for the upper right card indicating the card was on (my other 3 cards have this). XFX let me RMA it. I never liked this card anyways. Shitty...
  16. A

    Vega 64 GPU not recognized

    I removed the waterblock to put on the stock air cooler, and when I removed the thermal tape I noticed a greasy glistening on the vrm's. I wonder if this is just the thermal tape stick side residue, or if a bit of water got in there. I will leave the card open to air for 24 hours, then put on...
  17. A

    Vega 64 GPU not recognized

    The other three vega 64s are recognized. I disassembled the water loop. I took out the offending card and did not see any damage to the GPU die or memory. I reinstalled the GPU. I tried it in each pci express slot and no matter what it was never recognized. I guess I fucked up the GPU...
  18. A

    Vega 64 GPU not recognized

    I just upgraded my Vega 64 x 2 to Vega 64 x 4. I redid my waterblocks on my original Vega 64 and put it in the 4th PCI slot. Now, that GPU is not recognized. I tried swapping the power connectors from a GPU that was recognized, and it's still not. I tried disabling the other GPU's via PCI-e...
  19. A

    Undervolt Vega 64 using 17.10.2

    I succeeded in applying a 0.82v undervolt for ether mining. I figured out how to create a custom powerplay table registry mod to undervolt with the new 17.10.2 drivers. Basically, through much trial and error, I found that changing the GPU P clock speeds makes them fail to be registered, which...
  20. A

    Undervolt Vega 64 using 17.10.2

    I never could get dual mining to work
  21. A

    Undervolt Vega 64 using 17.10.2

    With overdriventool I was able to get the vcore down to 0.875v which helps but it's still not the same as 0.8125v. I estimate that I'm still 30watts over where I could be per card. That being said, the new drivers let me overclock my HBM far more, I maxed out at 1220 but it's not stable. I'm...
  22. A

    Undervolt Vega 64 using 17.10.2

    I just installed the 17.10.2 driver for my Vega 64 x 2 and R9 290 system. It does have the DAG performance of the blockchain driver and I can easily get the same 44Mhash per card. I can also undervolt... to a point. With the blockchain driver voltage control was lacking, yet applying a...
  23. A

    Vega 64 GPU vs HBM temperatures

    I figured out how to use the registry modded power states and make changes in Wattman to get my voltage down. If I set the power limit to -41%, and then change the GPU core clocks down from 1222 to lower, the voltage will go down to 0.8125v. If I don't set the power limit lower, once I change...
  24. A

    Vega 64 GPU vs HBM temperatures

    So set the desired gpu core under the p6 power state?
  25. A

    Vega 64 GPU vs HBM temperatures

    How'd you undervolt? I spent days undervolting my cards, and the only thing that worked for me was a registry tweak that someone else had prepared. However, I would love to clock my GPU core even lower and go for 0.8v but I don't know how. Wattman doesn't successfully change voltage for me...
  26. A

    Vega 64 GPU vs HBM temperatures

    Hm, so I've now been mining Ether for 12 hours. I checked my HBM temps again, they are 15-17c higher than the GPU core. However, my GPU core is heavily undervolted, at 0.85v (0.3v drop), the GPU is underclocked. The HBM on the other hand is overclocked from 950 to 1100Mhz, and Ethereum mining...
  27. A

    Vega 64 GPU vs HBM temperatures

    The molding does affect HBM height. See the article from TomsHardware on molded vs unmolded. http://www.tomshardware.com/news/amd-vega-package-problem,35281.html My cards both come with Samsung memory.
  28. A

    Vega 64 GPU vs HBM temperatures

    I wonder if me and you both have a 10c difference because our vega 64's are watercooled with EKWB blocks. Is everyone else that has their HBM and GPU core within a degree or two using an AMD aircooler or watercooler? The molding makes the HBM and GPU core the same height and should improve...
  29. A

    Vega 64 GPU vs HBM temperatures

    I have two XFX Vega 64's with EKWB waterblocks in a custom water loop. When Ethereum mining they run at 40c for the cores. However, I've noticed that curiously, the HBM runs 10c hotter. One card runs at 53c HBM and the other runs at 50c. I noticed when I was putting on the waterblock that...
  30. A

    Vega undervolt does not work with blockchain drivers

    He's supposedly releasing another registry tweak based on hellman's work that undervolts the cards even further. I cut off 200w. I'm not quite at 130w per card, but I dropped 200w from just using the blockchain driver. The voltage dropped on my Vegas from 1.15v in GPU-Z to 0.8375v. I...
  31. A

    Vega undervolt does not work with blockchain drivers

    Solved. This guide worked for me. It's basically the opposite of what hellman did. The youtube vid says he's gonna tweak the mod again for even lower voltages which I think my rig has a good chance of handling since the cards are under water and only at 40c.
  32. A

    Vega undervolt does not work with blockchain drivers

    Hi, I've been working on trying to obtain the elusive 44Mhash of ether mining at 150w power draw. Using the blockchain drivers, I can easily obtain 44Mhash. However, with the blockchain drivers no matter what I do, my power draw is significantly higher, about 200-250w per card. I've tried...
  33. A

    AMD blockchain drivers - crashes instantly when mining

    I figured it out. When I installed new drivers Crossfire reenabled, which made the cards crash.
  34. A

    AMD blockchain drivers - crashes instantly when mining

    I just got two vega 64 cards. I tried mining with the newest driver and get about 38.5 mhash per card. I expected more, so I installed the blockchain drivers but it instantly crashes when mining. I see squiggly lines on the screen and wattman resets. I've tried reinstalling the drivers with...
  35. A

    Vega 64 EKWB waterblock not compatible with R9 290

    I'm using the GPU's for mining
  36. A

    Vega 64 EKWB waterblock not compatible with R9 290

    It's a shame I can't just get two SLI connectors from EKWB and then connect them by the side. But... EKWB doesn't have inflow side connector options for their blocks. While I was thinking about that I realized that the parallel and serial EKWB 2 GPU connectors have different outflow options...
  37. A

    Vega 64 EKWB waterblock not compatible with R9 290

    Thanks for the link. I was looking for something like that. The question is, I would have to buy one off-center block, and two male to male rotarys. Would that fit between two gpu slots? I think it would be too large to fit. I would have to connect a GPU using a male to male rotary to the...
  38. A

    Vega 64 EKWB waterblock not compatible with R9 290

    I've been experimenting with individual fittings. The problem is for GPU's that are adjacent in slots that the barbs are too large. I can't fit two barbs pointed toward each other. The only way I could see individual fittings working is if there were some low prominence ones that I don't know...
Top