Super Talent 2GB PC2-6400 T800UX2GC4

As you could probably tell by now, these modules are clocked for 400MHz, which is effectively DDR2-800 or PC2-6400. According to their web site, the timings for the modules are 4-3-4-8. This is a part that will confuse some people, and it did me. I was confused when I could not get the modules to boot at 4-3-4 with 1.9v. The only way it would boot was if I had 2.3v or more.

The reason behind this, is because Super Talent uses a slightly different timing order than most of us have become accustomed to. Here is a quick example to help clarify it:

Normal Timing Scheme
• CAS = 4
• tRCD = 4
• tRP = 3
• tRAS = 8

Super Talents Timing Scheme
• CAS = 4
• tRP = 3
• tRCD = 4
• tRAS = 8

This is something you will want to bare in mind. Whereas you may look at the timings on their site and see 4-3-4-8, depending on how you usually read timings, it’s actually 4-4-3-8. Now, because I did find 4-3-4-8 to be stable with 2.3v+, this is going to be some interesting over clocking memory, I can tell.

In regards to the chips that lie beneath the spreaders, Super Talent told me that they are Micron Rev. D. Upon further investigation, the chips are D9GKX (MT47H64M8B6-25E). Other recent Micron chips have had the tendency to thrive on voltage, so I expect the same here.