Don't fear the Reaper. OCZs Reaper HPC (Heat Pipe Conduit) is an innovative cooling solution for high-speed memory modules. By utilizing a heat pipe and radiator fins both, the heat generated is dissipated faster than standard heat spreader designs. This matters to you because it helps facilitate improved overclocking performance, while improving longevity and stability of your memory.
This 4GB kit ensures optimal performance via an ideal combination of low voltage requirements, speed, and latency, so it's a great match for the Nehalem platform to unleash performance you could only dream of before.
Reaper Heat Pipe ConduitThe Reaper HPC is an innovative cooling solution developed by OCZ to effectively minimize heat produced by high-speed memory. As heat rises into the thermo-conductive copper heat pipe conduit, it is dissipated through the strategically-placed compact aluminum fin array.
2.15V EVPThe OCZ EVP (Extended Voltage Protection) feature allows performance enthusiasts to use a VDIMM of 2.15V without invalidating their OCZ Lifetime Warranty.
DDR2 1066DDR2 1066 delivers incredible performance and platform compatibility with up to 8.5GB/s memory bandwidth per channel for scintillating work and gaming power!
Pros: Big difference from DDR2-800 to the DDR2-1066, you can feel it when Vista first loads up and goes into your user account. With DDR2-1066 you wont feel the split second load time and execution you feel with DDR-800. This is also noticeable with program execution and "alt+tabbing" through programs. I bought 2 of these so I have 8Gigs... GG*~! *(internet gaming talk meaning Good Game or Game OVER)
Cons: Going through forums and Google Searches, you'll find out that DDR2-1066 is not a normal speed unlike DDR2-800. DDR2-1066 is actually a buffed up DDR2-800, you have to make the adjustments in the Bios to make it run and recognize it as a DDR2-1066. You'll notice in the CPUID program that it's recognizing it as a DDR2-800 or PC2-6400. Just make sure you tweak the DDR2-1066 memory in the BIOS as CAS# Latency (CL) as 5.0 clocks, RAS# to CAS# Delay (tRCD) as 5 clocks, RAS# Precharge (tRP) as 5 clocks, Cycle Time (tRAS) as 15 clocks, Bank Cycle Time (tRC) as 26 clocks, and Command Rate (CR) as 2T. my Cycle Time (tRAS) is auto configuring to 13 clocks, but thats ok, it's running fine. But last but not least, you have to up the Memory Voltage to 2.10 volts. If you are scared to do any of these, stick to DDR2-800 and your motherboard will auto sense it as DDR2-800 no worries. Until Manufacturers make a DDR2-1066 running at 1.8 volts, it will never be a standard speed.
Overall Review: Get yourself the free-ware program of CPUID also known as CPU-Z and then check out your Memory from the TAB, all the info on your timing and everything should be there. If it's not the way you wanted it, adjust them in your BIOS or Bios tweaking program. Then recheck it with CPUID to confirm the change. Remember, the 1066 in DDR2 is not the Mhz speed, its how much it can transfer data in seconds (1066 million data transfers per second). So DDR2-1066 is actually 533Mhz I/O Bus Clock and 266Mhz Memory Clock. All this can be confusing, but it's the truth. Don't be like "ARG!! I thought its suppose to be 1066Mhz! I'm RMAing, its not the right Memory!!!"