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Dell Precision 690 Memory Risers
I've currently got a Dell Precision 690 and recently acquired a pair of memory risers (JF806/JF807) and would like to run them with my modern 1KW modular power supply. Do the power cables connect directly to the original 1KW power supply or do they connect to the motherboard? Does anyone happen to know the part numbers of the cables and/or a source to find them? Any help would be greatly appreciated.
Thanks in advance!
speedstep
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September 23rd, 2015 12:00
http://www.ascendtech.us/search.aspx?s=Precision+Memory+Riser
DELL F817F Precision 690 Workstation Memory Riser Card F817F F816F
Dell JF806 Precision 690 Memory Dimm Riser Expansion Board Card JF806 H9376 G9460
Dell Precision 690 Memory Riser Boards JF807 M9008
Dell TY853 Precision 690 Memory Riser Module TY853 NN378 NN383
Dell Precision 690 and T7400 Memory Riser 3 & 4 Board TY857
Dell Precision 690 Memory Shroud FD419
New OEM Dell Precision 690 T7400 Riser Card Assembly Kit D8794 NF090 KF255 TH757
Riser Bracket CD672
Dell F406N Memory Riser Fan Precision 690 T7400 T7500 D8794 HG738 YC654
http://www.stuartconnections.com/en/plastics/1381-Dell-Precision-690-T7400-Memory-Riser-Bracket-CD672-YR314.html
YMMV This is an educated guess.
ChrisM might verify this.
What you want is:
DELL CR388 ASSY,CBL,PWR,MEM,PWS,T7400
DELL Assembly,Shroud,Riser,Dozer T7400 YR128
T7400 Memory Riser Board F817F
T7400 Memory Riser Board G327F
Dell Precision WorkStation T7400 (FB DDR2-667MHz) Memory
The SLI BRIDGE IS Dell Part Number: MJ247 0MJ247 CN-0MJ247
Compatible Part Number: 180-10219-0000-A01
Compatible Models: Dell Dimension XPS 600 Precision T7400 690 XPS 700 710 720
JF806 and JF807 are bolted back to back and it appears to me that the riser power cable is only on one side just like on the T7400 risers.
Look at pic below.
The riser power cables are attached to the large P24 connector from the power supply, using a CN-0CR388 cable which splits it into another two memory riser connector cables. Also, the 7400 riser version has a different memory fan assembly. Its not a simple just plug in risers and use it install.
Machine name: Dell Precision WorkStation T7400
CPU options: Intel Xeon
Chipset: Intel 5400 Chipset
Memory Speed options: PC2-5300 DDR2-667 240pin Fully Buffered SDRAM DIMM
Special notes: FB-DIMM Memory Risers are installed in the first four standard memory sockets only. Additional standard memory sockets then become unusable.
speach
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September 23rd, 2015 13:00
To clarify, I have a Precision 690 with the 0MY171 motherboard. 32GB max without risers and 64GB max with risers.
I already have the memory fan assembly (pictured below) and the complete riser set (risers 1,2,3 and 4).
Memory Riser Fan:
Which replaces this original assembly:
Also from what I can tell, the shroud that I have supports this new configuration along with the memory bracket both pictured below:
Bracket:
Shroud:
Here is the riser set I have:
So being in the position of not having the riser power cables or the original 1KW power supply I would really like to find a way to power these boards. From what i have heard, the T7400 risers have a different power cable as well. As you can see there are 4 power connectors (top right corner on the left boards and top left corner on the right boards).