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DDR DIMMs, BIOS and Timing Issues
Dont Do Rambus
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(Review by MS, January 1, 2001)
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The Test Candidates II
Mushkin is one of the first retailers who offers several DDR modules. The DIMMs shown here were among the first batch of DDR DIMMs and may be replaced as different configurations become available.
Hyundai 128 MB double-sided (8M x 16 / 128 Mbit chips) Mushkin PC2100 CL 2.5 DDR DIMM
The DIMM shown here is a double-sided, 2-bank DIMM using Hyundai 8M x 16 chips. Since the width of the individual chips is already 16 bit, only 4 chips can be used per bank to fill the 64 bit width of the bus.
8M x 16(bit) Hyndai DDR chip as used on the DIMM shown above. Note that the chip is -7 rated.
Samsung 256 MB double-sided (16M x 8 / 128 Mbit chips) Mushkin PC 2100 CL 2.5 DDR DIMM
The only 256 MB DDR DIMM in the test sample. 16 M x 8(bit) chips are used for a double-sided, 256 MByte DIMM, using a "TwinMos, high-profile" PCB, specifically developed for the AMD760 Platform.
Closeup of the Samsung discrete used on the DIMM. The Samsung chips are 8 ns rated, however, we'll show later that they had no difficulties running at 133 MHz
next page: => how do they rate? =>
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