Abit AI7

Our first SiSoftware memory benchmark will measure OCZ 4400 in DIMM's 0,1 running at 200FSB, Aspect Ratio 1:1, all GAT setting's on Auto, with the exception of CPC (Command Per Clock) which must be Disabled with OCZ memory. The memory was run on SPD (Serial Presence Detect) as I've always achieved greater bandwidth at higher speeds using this setting. Vcore was set to default for the 2.4C which is 1.525V and will remain at default for the remainder of this review.

CPU Speed	2413 Mhz
Memory Speed	200 Mhz
Memory Timings	SPD (CL3 3-3-7)
Sisoft Sandra Memory Bench Int	4374 Mb/s
Sisoft Sandra Memory Bench Float	4446 Mb/s

Unfortunately SiSoftware Sandra is unable to read CAS Latencies. I decide to tighten to CL2.5, all other values remained as above;

CPU Speed	2413 Mhz
Memory Speed	200 Mhz
Memory Timings	CL2.5 3-3-7
Sisoft Sandra Memory Bench Int	4489 Mb/s
Sisoft Sandra Memory Bench Float	4467 Mb/s

Running the memory on manual setting, at CL2.5 resulted in a 115MB/s increase. Next were increasing the FSB to 230FSB. 1:1 using SPD

CPU Speed	2763 Mhz
Memory Speed	230 Mhz
Memory Timings	SPD (CL3 3-3-7)
Sisoft Sandra Memory Bench Int	5098 Mb/s
Sisoft Sandra Memory Bench Float	5085 Mb/s

Next I increased the FSB to 250MHz , 1:1 Ratio. In this case DDR voltage was raised to 2.8V as the memory was unstable below this. All other parameters remain unchanged;

CPU Speed	2999 Mhz
Memory Speed	250 Mhz
Memory Timings	SPD (CL3 3-3-7)
Sisoft Sandra Memory Bench Int	5559 Mb/s
Sisoft Sandra Memory Bench Float	5549 Mb/s

At 5559MB/s running 250Mhz, the AI7 conjures up some decent bandwidth given the fact all GAT settings are basically disabled. Unfortunately out of three different memories, I've been unable to utilize any of the GAT settings. I hope to be reviewing OCZ's new Platinum EB3200 in 2GB-kits. I'm sure with this memory GAT can be fully exploited for some bandwidth which approaches, and may even exceed some Canterwood based boards.
The next benchmark will be run at 275FSB or DDR550, once again running in SPD, at 1:1 Ratio, this time with additional DDR voltage - 2.90V.

CPU Speed	3300 Mhz
Memory Speed	275 Mhz
Memory Timings	SPD (CL3 3-3-7)
Sisoft Sandra Memory Bench Int	6060 Mb/s
Sisoft Sandra Memory Bench Float	6034 Mb/s

With the AI7 I began reaching the memory's maximum stable speeds, without pushing too much VDIMM. It's true I have 3.20V at my disposal, but that doesn't always warrant its use. I never exceeded 3.0VDIMM running this memory, and it's entirely possible it would have ran even faster had I done so. I'll leave that to individual owners. I was content in exceeding the memory's speed, and breaching the 6GB/s bandwidth mark with complete stability.
Below are results running the memory at 280FSB, 1:1 Ratio, SPD, 2.90VDIMM.

CPU Speed	3360 Mhz
Memory Speed	280 Mhz
Memory Timings	SPD (CL3 4-4-8)
Sisoft Sandra Memory Bench Int	6218 Mb/s
Sisoft Sandra Memory Bench Float	6248 Mb/s

This is certainly excellent bandwidth given the circumstances. With GAT on Auto, the utility is basically disabled. Ergo the memory is actually performing on its own merits to the extent PAT wouldn't be influencing its performance.

Let's see how the memory performs on the Asus P4C ->