SR 1521

Here's the parts list and build instructions for the Coraid SR 1521.

Motherboard Assembly

Coraid used four generations of SuperMicro motherboards, but there is very little about the motherboard that makes any difference to the systems. The only issue that limited motherboard selection was the fact that we tapped into the system management bus and talked to the various sensors for temps, fan speeds, and power supply states rather than using IPMI and on board BMC. If a you don’t care about those functions, you can use almost any motherboard. For this example, we will be use the X7DVL-E.

Parts Required

  • motherboard, X7DVL-E
  • memory, 2 1GB RAM-MEM-DR210L-HL02-FB6
  • CPU/Processor, P4X-DPE5205–186–6M1066


  • Install memory into motherboard—use slots DIMM1A and DIMM2A.
  • Install CPU into slot CPU1 on motherboard.
  • Set aside.

System Assembly

Parts Required

  • chassis, CSE–933T-R760B
  • assembled motherboard
  • 5 motherboard screws
  • 2 stand-off screws
  • flash module
  • sub-assembly cable front panel
  • 2 SATA cards
  • 15 SATA cables
  • power extension cable, CBL–0062L
  • 3 plastic ties
  • heat sink, POO25P

Warning: Coraid is not currently compatible with backplane expanders.


  1. Remove chassis cover plate and set aside.
  2. Remove two rear fans.
  3. Remove air shroud and set aside.
  4. Install CPU mounting plate.
    • Make sure the arrow on the faceplate is pointing towards the front of the chassis.
    • Secure with a screw in each corners. Use screws that come with mounting plate.
    • SR 1521
  5. Install 2 stand off screws on chassis base D holes that are located on the left side of the chassis.
  6. Prepare power cords:
    • Separate power cords.
    • Set out power cords (PA) and (PC).
    • Attach power extension cord to (PC) cord.
    • Tuck away black/blue/yellow cord (PB) and brown/purple/red/orange cord.
  7. Install mother board sub-assembly using the 5 mother board screws.
  8. Connect 2 rear fan lines. Connect the fans to the motherboard fan connectors labels FAN5 and FAN6.
  9. Install heat sink using a crisscrossed pattern to secure each corner screw.
    • Make sure that heat sink is seated so that the air flow from the fans is not impeded.
    • Make sure that the copper tubes are facing away from the power supply.
  10. Connect power cords to motherboard sub-assembly:
    • Connect power cord PC to motherboard connection JPW3 (using the cable extender).
    • Connect power cord PA to motherboard connection JPW1.
    • Connect I2C power cord to motherboard connection JPI2C.
  11. Install 2 SATA cards:
    • Remove the PCI brackets for PCI-X slot 5 and 6.
    • Note: labels for slots are on the motherboard. These are the slots located closest to the power supply.
    • Secure SATA cards with screws that were removed for brackets.
  12. Remove 4 front fans.
  13. Remove and throw away black foam pad if present.
  14. Check sequence connection power to SATA backplane (PJ PD PE PG).
  15. Unbind cords by cutting black plastic tie.
  16. Locate and separate the flash DOM power connector labeled PH.
  17. Install new front panel cable:
    • Remove drive trays 12–14.
    • Detach existing front panel cable and pull out and throw away.
    • Attach new front panel cable based on “keying” of cable end (red wire is pointing to bottom of chassis).
    • Return drive trays.
    • Connect the front panel cable to the motherboard sub-assembly (red wire is on the side opposite the power supply) at JF1.
    • Connect chassis intrusion switch line to pin labeled CHASSIS INTRUSION on the motherboard—it is located next to the front panel cable connector.
  18. Install flash:
    • Place flash in BLUE slot (IDE1).
    • Connect flash power cord to the (PH) power cord.
  19. Install 14 SATA cables in the following sequences:
    • 0/1 2/3 4/5 6/7 8/9 10/11 12/13 14
    • cables 0–7 connected to first SATA card, PCI-X slot 6.
    • cables 8–14 connect to second SATA card, PCI-X slot 5.
  20. Restore 4 front fans.
  21. Restore air shroud.
  22. Restore rear 2 fans.
  23. Restore chassis cover plates.

Have any questions?

Contact us for assistance any time.