The
Modules
Packaging is your typical plastic enclosure type. The modules come with instructions in 5 different languages. They use to include a case badge which was kinda nice but now they don't supply them anymore.
The modules are a matched pair of Corsair CM2X1024-8500C5 240-pin DDR2 DIMMs tested up to 1066MHz in high performance DDR2 motherboards. Each module is tested in an AMD-based AM2 motherboard before being packaged together.
Tested at EPP SPD settings 5-5-5-15 latency values at 1066MHz at 2.2V. This gives you a lot of headroom when running and overclocking AM2 boards.
Corsair's CM2X1024-8500C5 modules come in black heatspreaders. It is attached to the actual memory chip by thermal tape. The modules use highly screened Micron D rev RAM.
What is EPP?
EPP is short for Enhanced Performance Profiles. It is a collaborative memory development effort between Corsair and NVIDIA. What EPP does is that it allows consumers to easily expose advanced performance memory settings for even higher levels of overall PC system performance.
It was developed as an extension to the traditional Serial Presence Detect (SPD) found on most high-performance modules. With EPP, memory manufacturers can now integrate additonal modules performance data in the unused portion of the JEDEC standard SPD, allowing compatibel motherboard to read and take advantage of these tweaks. Both Corsair and NVIDIA have dveloped these capabilities as an open standard for immediete adoption by motherboard partners and PC memory suppliers.
Traditional SPD values include only a small handful of JEDEC standard memory specifications. The new EPP include many more critical specification values omitted from the standard SPD, such as command rate and memory voltage. This allows EPP memory modules to perform at their optimal profile as specified by the manufacturer, providing users with tested and approved overclocked performance while maintaining JEDEC compatibility.
Corsair modules support two types of performance profiles that are based upon a high frequency or low latency design. EPP brings simplified overclocking success for entry level enthusiasts, and access to more advanced memory specifications and a higher recovery point for hardcore overclockers.
EPP can be found on all new Corsair XMS DDr2 memory parts, including the Twin2X2048-8500C5 2GB kit.
Test Setup
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Hardware |
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ABIT Fatal1ty AN9 supplied by IWAY |
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AMD Athlon64 X2 3800+ AM2 Processor |
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Leadtek PX7600GT TDH 256MB DDR3 Dual DVI x 2 in SLI supplied by ifocus |
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Western Digital 74Gb Raptor 10000 rpm |
| Western Digital 80Gb 7200rpm IDE |
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Corsair HX620W PSU supplied by Corsair |
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Comparison System |
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Corsair Twin2X1024-6400C4 supplied by ifocus |
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Software |
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Windows XP Professional SP2 |
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Nvidia Forceware 91.47 |
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Direct X 9.0c |
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Benchmark |
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SiSoft Sandra 2007 |
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CPUZ 1.36 |
| Doom 3 v1.3 |
| F.E.A.R |
| Quake 4 v1.3 |
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Driverheaven Photoshop Benchmark V2.0 |