Hello The Nehalem series processors are limited to 2Gb DRAM size. 4Gb DRAM 16GB DIMMs are not supported with the E7540. To tell the DRAM size you can use this calculation: DIMM size divided by rank to find the size per rank: 16GB/2(rank)=8GB per rank For x4 memory there are 16 DRAMs per rank, but they are calculated in gigabits so you need to convert 8GB to Gb. Since there are 8 bits per byte you simply multiply: 8GB * 8 = 64Gb To calculate the DRAM size you then divide the number of DRAMs(16) by the amount of memory per rank: 64Gb/16=4Gb That is how we come to the conclusion that the Samsung memory has 4Gb DRAMs. The maximum DRAM size supported by that CPU is 2Gb. Thanks
I have a R910 with 4 x E7540 @ 2.00GHz, I installed 8x16GB RAM into the following slot: Riser A1,A2 Riser C1,C2 Riser E1,E2 Riser G1,G2 However the system cannot boot: No configurable memory detected. System Halted. The RAM I am using is Samsung M393B2G70BH0-YH9. I have read the Hardware Owner's Manual but can't find a configuration with 8x16GB RAM, the only mentioned configuration are 32x16GB and 64x16GB. Is it mean that 8x16GB RAM is not supported?
PowerEdge R910 with 8x16GB RAM