In Search of True DDR2 Bleeding Edge Memory

Twinmos' DDR2-667 Is Slow, But Overclocks Well

While testing one of the first modules we received, we suffered a mishap: An SMD condenser broke free from the package. The vendor responded quickly to our request for a replacement and sent us new modules that showed convincing overclocking capabilities - 934 (467 MHz) isn't bad at all. But they operated only at CL4.0 in our timing tests.

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TwinMOS (Nanya)
Manufacturer Details
Speed: DDR2-667 (PC5300)
Timings: CL 5.0-5-5-13
Size: 512 MB (1 rank, 4 banks)
single sided
Label: P/N:8D-23JK5-9YTZ
PC2-5300 512 MB U-DIMM/CL5
Module SPD-Timings
DDR2-667 (333 MHz) CL 5.0-5-5-15
DDR2-533 (266 MHz) CL 4.0-4-4-12
DDR2-400 (200 MHz) CL 3.0-3-3-9
Refresh Rate: 7.8 us, Self-Refresh
Voltage: 1.8 V
Test I (default): DDR2-667, CL 5.0-5-5-15, 1.8V
Test II (timing): DDR2-667, CL 4.0-4-4-12, 1.8V
Test II (overclocking): DDR2-667@934 (467 MHz) 2.2V

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