OCZ ReaperX PC2-6400 4Gb DDR2 Kit
Test Setup, Settings & Overclocking
To ensure that all reviews on Overclock3D are fair, consistent and unbiased, a standard set of hardware and software is used whenever possible during the comparative testing of two or more products. The configuration used in this review can be seen below:
OCZ ReaperX (PC2-6400) 4GB
Mushkin HP2-6400 (PC2-6400) 4GB
|Processor||Intel Core 2 Quad Q6600 "G0" 2.4GHz 2x4MB|
|Motherboard||DFI Lanparty P35-T2R|
|Graphics Card || Sapphire Ultimate X1950 Pro 256mb PCI-E|
|Hard Disk ||Hitachi Deskstar 80GB 7K80 SATA2 7200RPM 8mb|
|CPU Cooling ||Stock Intel Aluminium Cooler|
|Operating System ||Microsoft Windows Vista Ultimate (Latest Updates)|
|Graphics Drivers ||ATI Catalyst 7.4.44981|
|Motherboard Drivers ||Intel INF 8.300.1013|
To guarantee a broad range of results, the following benchmark utilities will be used:
Synthetic Memory Subsystem
• Sisoft Sandra XII 2008c
• Lavalys Everest 4.0
File Compression & Encoding
• 7-Zip File Compression
• River Past ViMark
3D / Rendering Benchmarks
• Cinebench 10
• Quake 4
Settings & Overclocking
As with all memory reviews on Overclock3D the ReaperX PC2-6400 modules were subjected to a series of benchmark tests under several different configurations. The configurations used tested the memory's ability to run at high frequencies with stock timings, high frequencies with loosened timings and also ensured that that the modules could run with 100% stability at their advertised speed, latency and voltage settings.
Stock Frequency & Timings
DDR2-800 / 4-4-3-15 / 2.1v
We've already mentioned that OCZ only guarantee the ReaperX PC2-6400 kit to run at its advertised 4-4-3-15 timings on an Nvidia 680i based motherboard with EPP. This certainly seemed to be the case when we first placed the modules in our Intel P35 based DFI Lanparty board, attempted to boot into Windows and was welcomed by repeated BSOD
's. No matter what settings we tried, we just couldn't get the modules stable.
However, a quick browse of the OCZ website revealed a link to their forums where there was extensive information and a guide
on how to get the ReaperX kit running stable on a range of Intel P35 based boards. After changing the settings on our DFI P35-T3R to the ones suggested on the forum, the test PC booted into Windows flawlessly and passed several hours of Prime95 stability testing.
Highest Frequency @ Relaxed Timings
DDR2-1098 / 5-5-4-18 / 2.1v
Overclocking the ReaperX on it's stock timings of 4-4-3-15 was't really much of a success on our Intel P35 based testing platform. This certainly didn't come as a surprise, as the modules are only really designed to run at CAS4 on Nvidia based chipsets. However, on loosening the timings to 5-5-4-18 the ReaperX kit showed us exactly what it was capable of by coming just shy of DDR2-1100. This is extremely good for a 4GB kit, and as we can see from the graph below; the Mushkin kit also used in this review couldn't even come close.
Now that we've got the overclocking out of the way, let's see how the ReaperX sized up against the Mushkin kit in our benchmarks over on the next page...
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