Tweaking 8GB of Kingston HyperX DDR2 RAM

I am still new to the OC thing, so fielding the question while I work at it.

Just picked up 8GB (4x 2GB) of Kingston PC6400 DDR2 RAM, HyperX, to replace my 4GB (4x1GB) of Cosair XMS2 PC6400 DDR2.

I'm trying to tweak it, but don't feel I'm getting far. And getting conflicting info.

System
Gigabyte X38 DQ6
Q6600 @ 3.00GHz (9x333MHz)
Vista Ultimate 64bit

Set memory to 4-4-4-12-1T @+0.15V running it @ 333MHz (i belive, 2.00B is the setting). Boots to Windows. Using these settings.

Attemps at 3-3-3-9-1T @same setting couldn't boot.

However CPU-Z is feeding me funny numbers 4-4-4-12-2T with a ratio FSBRAM of 4:5 @2.0V

PC Wizard 2008 is giving me these numbers.

PC Wizard 2008 Version 1.84
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Owner: Microsoft
Organisation: Microsoft

Operating System: Windows (TM) Vista Ultimate Professional 6.00.6001 Service Pack 1
Report Date: Sunday 27 April 2008 at 18:09

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<<< RAM Benchmark >>>

> Latency : 79 ns (189 cycles)

> Bandwidth Efficiency Float : 86%

> Bandwidth Efficiency Int. : 75%


<<< General Features >>>

>> General Information
Chipset : Intel X38
Chipset RAM Type : DDR2-SDRAM PC2-5300 Dual
DIMM Type : DDR2-SDRAM PC2-5300
Memory Frequency : 333 MHz
Memory Bandwidth : 5333 MB/s
Latency : CL4

>> Memory Information
L1 Cache : 4 x 64 KB
L2 Cache : 2 x 4096 KB
Total Memory : 4096 MB

>> Tests Information
Instructions SSE, SSE2 : 128-bit
Instructions SSE3, S-SSE3 : 128-bit
Instructions SSE4.1, SSE4.2 : 128-bit
Instructions SSE4a : 128-bit
Instructions SSE5 : 128-bit
Instructions FPU128 : 128-bit
Instructions MMX : 64-bit
Instructions 3DNow! : 64-bit
Instructions FPU (x87) : 64-bit
Instructions INT : 32-bit
Test : 2 x 64 MB
Prefetch-Block (8 KB) : Yes
Latency Stride : 512

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***** End of report *****

Any feedback or help would be handy, CPUZ is saying one thing and BIOS and PC Wizard is saying another (latency was 94ns @ 2T).