Hi,
I have an Intel DH87RL Desktop Board with a 16 GB Kingston Memory Kit KHX1600C10D3B1K2/16G. This is a kit of two KHX1600C10D3B1/8G modules. The KHX1600C10D3B1/8G module is listed on the tested memory list from Intel for the DH87RL with module speed 1600 MHz(see http://www.intel.com/support/motherboards/desktop/db-dh87rl/sb/CS-034215.htm). The full specification for the kit is: Kingston HyperX Blu DDR3 16GB Kit 1600MHz , 2x 8GB, CL10 (10-10-10), 1.5V, 240Pin. The board is updated to the latest BIOS Revision 323 (RLH8710H.86A.0323.2013.1204.1726).
How do I properly set the BIOS so that the memory runs at 1600 MHz (2*800) DRAM Frequency?
| BIOS memory setting | MHz in BIOS | MHz in CPU-Z |
|---|---|---|
| Automatic | 1.33*10 = 1333 | 661.1 |
| XMP-1600 Profile | 1.33*12 = 1600 | 661.1 |
| Manual (increase 10 to 12) | 1.33*12 = 1600 | 799 |
Using "XMP-1600 Profile" does not work. (Is this a bug in the BIOS?)
Using "Manual" works, but which values do I set for all the many other settings? In CPU-Z it is shown as 9-9-9 which is above the specified 10-10-10.
The SPD has the following timing tables:
| JEDEC#4 | XMP-1600 | |
|---|---|---|
| Frequency | 685 MHZ | 800 MHZ |
| CAS# Latency | 9.0 | 10.0 |
| RAS# to CAS# | 9 | 10 |
| RAS# Precharge | 9 | 10 |
| tRAS | 25 | 27 |
| tRC | 34 | 36 |
| Command Rate | (empty) | (empty) |
| Voltage | 1.50 V | 1.500 V |
Thank you for your help.
Thomas
