Test 4 is really your only valid test. If the memory doesn't work alone in slot 1, then there is a problem. The memory seems to be Fully Buffered (required) and other specs seem to be in order, so I'm not sure why it's not working. Did you update the BIOS before installing the new RAM? Did you also update the ESM/BMC? You might try clearing the NVRAM using the jumpers on the motherboard. I would assume, based on the available information, as unlikely is it sounds, that the new memory is mislabeled or bad.
I did not update the ESM/BMC but can give that a shot as well as clearing the NVRAM.
Thanks for the help and ideas. I will update after I have attempted those suggestions. Seems likely that I will be returning the RAM and ordering it else where.
Just in case this helps anyone else. I sent the RAM back and bought some on eBay with the same specifications (happened to be a different brand) and it worked fine. So I think either the others were mislabeled or bad.
Mixing old and new in a match set cause the issue, as well as only using Dell recommended ram.
16GB KIT 2 x 8GB Dell PowerEdge 1950 III 2950 2950 III M600 R900 Ram Memory
The memory module sockets are divided into two equal branches (0 and 1). Each branch consists of two channels: • Channel 0 and channel 1 are in branch 0. • Channel 2 and channel 3 are in branch 1. Each channel consists of two DIMM sockets: • Channel 0 contains DIMM_1, DIMM_5. • Channel 1 contains DIMM _2, DIMM_6. • Channel 2 contains DIMM_3, DIMM_7. • Channel 3 contains DIMM _4, DIMM _8.
The first DIMM socket of each channel has white release tabs. General Memory Module Installation Guidelines To ensure optimal performance of your system, observe the following guidelines when configuring your system memory. • Use only qualified Fully-Buffered DIMMs (FBDs). FBDs can be either single-ranked or dual-ranked. FBDs marked with a 1R are single-ranked and modules marked with a 2R are dual-ranked. • A minimum of two identical FBDs must installed. • DIMM sockets must be populated by lowest number first. • FBDs must be installed in pairs of matched memory size, speed, and technology, and the total number of FBDs in the configuration must total two, four, or eight. For best system performance, all four, or eight FBDs should be identical memory size, speed, and technology. • Memory sparing and memory mirroring require eight FBDs, and all FBDs must be of identical memory size, speed, and technology. YOU CANNOT USE A SIX SLOT SETUP!!!
theflash1932
9 Legend
•
16.3K Posts
0
March 29th, 2015 08:00
Test 4 is really your only valid test. If the memory doesn't work alone in slot 1, then there is a problem. The memory seems to be Fully Buffered (required) and other specs seem to be in order, so I'm not sure why it's not working. Did you update the BIOS before installing the new RAM? Did you also update the ESM/BMC? You might try clearing the NVRAM using the jumpers on the motherboard. I would assume, based on the available information, as unlikely is it sounds, that the new memory is mislabeled or bad.
jeffr5567
4 Posts
0
March 29th, 2015 08:00
I updated the BIOS between attempts 3 and 4.
I did not update the ESM/BMC but can give that a shot as well as clearing the NVRAM.
Thanks for the help and ideas. I will update after I have attempted those suggestions. Seems likely that I will be returning the RAM and ordering it else where.
jeffr5567
4 Posts
0
March 29th, 2015 14:00
I updated the BMC and cleared the NVRAM without any success. Still the same issue even with just a single stick in SLOT 1.
Anyone have any other ideas? Otherwise I will send the RAM back.
jeffr5567
4 Posts
0
April 3rd, 2015 19:00
Just in case this helps anyone else. I sent the RAM back and bought some on eBay with the same specifications (happened to be a different brand) and it worked fine. So I think either the others were mislabeled or bad.
pnrip
1 Message
0
December 16th, 2018 21:00
FYI:
Mixing old and new in a match set cause the issue, as well as only using Dell recommended ram.
16GB KIT 2 x 8GB Dell PowerEdge 1950 III 2950 2950 III M600 R900 Ram Memory
The memory module sockets are divided into two equal branches (0 and 1). Each branch consists of two channels: • Channel 0 and channel 1 are in branch 0. • Channel 2 and channel 3 are in branch 1. Each channel consists of two DIMM sockets: • Channel 0 contains DIMM_1, DIMM_5. • Channel 1 contains DIMM _2, DIMM_6. • Channel 2 contains DIMM_3, DIMM_7. • Channel 3 contains DIMM _4, DIMM _8.
The first DIMM socket of each channel has white release tabs. General Memory Module Installation Guidelines To ensure optimal performance of your system, observe the following guidelines when configuring your system memory. • Use only qualified Fully-Buffered DIMMs (FBDs). FBDs can be either single-ranked or dual-ranked. FBDs marked with a 1R are single-ranked and modules marked with a 2R are dual-ranked. • A minimum of two identical FBDs must installed. • DIMM sockets must be populated by lowest number first. • FBDs must be installed in pairs of matched memory size, speed, and technology, and the total number of FBDs in the configuration must total two, four, or eight. For best system performance, all four, or eight FBDs should be identical memory size, speed, and technology. • Memory sparing and memory mirroring require eight FBDs, and all FBDs must be of identical memory size, speed, and technology. YOU CANNOT USE A SIX SLOT SETUP!!!
Thank you.
Powerhouse Systems