Mushkin XP2-6400 DDR2
We have never reviewed PC memory from Mushkin on our site but it doesn’t mean the company is new to the SDRAM market. Mushkin was founded in 1994 as a subsidiary of Ramtron International Corp., the name that is now closely associated with ferroelectric memory (FRAM). Mushkin has nothing to do with FRAM, however, but has been supplying modules of ordinary SDRAM for all these years.
Mushkin offered us their XP2-6400 modules. These modules are currently the company’s fastest DDR2 product and are rated to work at 800MHz frequency with rather aggressive 5-3-3-8 timings.
Mushkin doesn’t make any “best in the world” statements about its products and the modules look rather plain externally. The Mushkin XP2-6400 DDR2 kit is a pair of identical DIMM modules equipped with heat-spreaders made of anodized aluminum of a matte black color. The company’s name and the words “Enhanced Memory” are extruded on the heat-spreaders. The marking and the timings of the memory can be read on the stickers.
The official specification of the Mushkin XP2-6400 DDR2 kit follows below:
- Frequency: 800MHz DDR
- Default timings: 5-3-3-8
- Structure: eight 64MB DDR2 chips
- Voltage: 1.9-2.1V
- The kit includes two 240-pin unbuffered DDR2 SDRAM modules, 512MB each, without ECC
- The modules are equipped with aluminum heatsinks with a matte black surface
- The modules come with a lifetime warranty
Note that unlike Corsair’s modules, the XP2-6400 DDR2 kit doesn’t require high voltage to show their best characteristics. The declared frequencies and latencies are achievable at 1.9V already which you can select on almost any LGA775 mainboard available. Mushkin also guarantees the modules to work at 2.1V voltage, which will surely help at overclocking.
The modules’ SPD is programmed like that:
As you see, Mushkin didn’t write into SPD the declared parameters, either. For better compatibility with mainboards these modules contain two sets of parameters in their SPD: DDR2-400 SDRAM with 3-3-3-9 timings and DDR2-667 with 4-5-5-15 timings. Thanks to this setup, you can easily start up any mainboard with XP2-6400 DDR2 modules installed at the default memory settings and then adjust these settings as necessary. Our experience with this kit suggests that this memory is more inclined to work at high frequencies rather than at aggressive timings. We should keep this fact in mind.