Corsair CMX4GX3M2A1600C9 XMS3 4GB (2 x 2GB) DDR3 SDRAM Memory

Title : Corsair CMX4GX3M2A1600C9 XMS3 4GB (2 x 2GB) DDR3 SDRAM Memory
ASIN : B002LE8D2A
Description : Memory
Features :

• Storage Capacity:4 GB : 2 x 2 GB
• Upgrade Type:Generic

List Price : £121.57
Price : £35.12
Saved Price : £86.45

category: Products
brand: Corsair
Item Page Detail URL : link
Rating : 4.7
Review : High compatibility ganged CMX4GX3M2A1600C9 DIMMs
Purchased 4GB kit (2*2GB) DDR3 1600 (PC3-12800) CL9 which are rated at 1.65V, however they work perfectly without any configuration in my AMD 890GX setup which has a DDR3 memory controller normally using 1.5V DIMMs.

As my motherboard ran the memory at a default 1333MHz (same as the onboard 1Gb/128MB sideport) I overclocked the DIMMs to run at their rated maximum speed 1600MHz, which can be simply achieved by either:

1. Changing the memory ratio from 6.66x to 8x
2. Or keeping the 6.66x memory ratio and increasing the HT Link from 200 to 240 MHz (HT Link bus speed becomes ~2400MHz)

This 2nd option requires further modifications as it is overclocking the system not just the memory, but this is best if you have a Black Edition AMD CPU as they have loads of headroom for overclocking.

When the memory is running at 1600MHz it is best to ensure the Memory SPD Timings/Latencies are set to CL 9
ie. 9-9-9-24 this will optimise the system...