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Recent content by sfield

  1. S

    4P Board Recommendations

    I would go with the Supermicro below. Good layout for CPUs and VRMs, and the Supermicro boards have more "control" than Tyan boards. Personally, I've always gone for the H8QGi-F variant of the board, more PCIe slots, and may have higher resale value (at nominal additional cost)...
  2. S

    4p Barebones Kit

    For the 2u cases, one approach is to route the hoses out the back of each 2u case -- can probably drill some properly sized holes to make this very clean. Have the rad(s) on the outside of the cases. Given the load, you could even experiment with multiple systems connected in series to one...
  3. S

    2P and 4P system guide

    I used these with my EK blocks & brackets: http://www.koolance.com/water-cooling/product_info.php?product_id=1039 http://www.koolance.com/water-cooling/product_info.php?product_id=1056 (I also had to get the G34 bolts for koolance CPU-370 blocks on another system).
  4. S

    2P and 4P system guide

    Jeanjean, Did your EK blocks come with the small extension blocks/tabs that effectively extend each water block for G34 mounting? That's new if so, and is good information to share. I had to make brackets for my system which uses the Acetal version of those blocks.
  5. S

    two SR-X or 4P 6174

    Coming from an SR-2 at ~4.3ghz ddr3-1870 7-8-7, I saw no reduction in gaming performance going to a 4x 6180 system running at 2.7. Most of the games I play are GPU bound, not CPU bound, particularly at high resolutions. (2560x1600 middle monitor only everything maxed "ultra" or 7680x1600...
  6. S

    two SR-X or 4P 6174

    One is running at 2.8, 1.2125v, 7-7-7 memory, 15:40 TPF on 6904, 845W. One is running at 2.7, 1.175v, 6-7-5 memory, 16:00 TPF on 6904, ~750W. Tested, but don't really run at this since the power curve gets silly beyond 2.7: 2.9, 1.2625v, 7-7-7 memory, 15:13 TPF on 6904, 945W. At 2.8...
  7. S

    two SR-X or 4P 6174

    At the moment I'm not selling any of the block mounts that were pictured in the ATCS840 based system w/EK waterblocks. However, I have raw materials for 8 that are a new design that will support the VRM waterblock in addition to the CPU block. Once those are built I'm open to selling the old...
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    two SR-X or 4P 6174

    One of my 4p boxes is gaming/video/photo/development system part time, and folding the rest of the time. It's got a radeon 6990, Asus Xonar soundcard, and LSI 9265-8i raid controller. I don't use the 6990 for GPU folding...
  9. S

    Phoronix: new Linux compiler = 30% boost in Bulldozer performance

    The source for FAH is not needed -- it's possible to build the core engine from the published gromacs source base. The gromacs piece that is relevant from a testing and performance perspective is mdrun. (I built a 64bit Windows mdrun.exe about a year ago with some optimizations which were...
  10. S

    Bigadv/Beta Folding Farm still a Good idea?

    Separate instances is what we are running today -- eg: 4 separate 4p machines, each running their own work unit. Numbers for that were included above, compared to a hypothetical perfect scaling set of linked machines that would all be processing the same work unit.
  11. S

    Bigadv/Beta Folding Farm still a Good idea?

    Can you post details on the HT-link card and other details of how this is supported (BIOS supported needed, software, etc)? I've tested fah up to -smp 160 and scaling is linear relative to number of cores. The currently shipped windows binary has a hard limit of 64 threads due to it being a...
  12. S

    4 x Xeon 7350's... What to do?

    Many of the intel 4p motherboards have a large number of PCIe slots. 11 PCIe slots in several systems I've seen, and these tend to be EFI based bios systems, so the usual limitations around number of adapters tends not to be an issue. Not sure about the systems built around the chips you've...
  13. S

    Operation Black Quad G34 "Workstation"

    I don't think that was a single WU. In fact, this box appears to have been assigned standard bigadv for about a week at this point, whereas a slow 2p system has no trouble getting 6904 units... I think the 933k drop was a bunch of results submitted at once, as a result of part of the home...
  14. S

    Operation Black Quad G34 "Workstation"

    I don't have a mill at this point, but somebody I know does -- looking at that as the first choice. Have been considering getting something small, eg: like the small CNC machines offered by littlemachineshop.com, but don't have alot of time to invest in this currently. checkout some of the...
  15. S

    Operation Black Quad G34 "Workstation"

    Here's a progress update on the VRM cooling. I changed the approach from building copper blocks that mate to other blocks to just fabricating solid copper one-piece waterblocks. These will be attached to an aluminum channel mated to the case; one different approach to this would be to mount...
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