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New chipset for DDR RAM from Intel

New chipset for DDR RAM from Intel

Although not yet officially presented by Intel, the Pentium 4 boards with the i845D chipset supported by DDR-SDRAM can now be sold and advertised. Intel itself already has two boards on offer, one in MicroATX format.

The only change to the i845 chipset is a new MemoryControllerHub (MCH), which, in addition to SDRAM, now also supports up to 2 GB PC2100 DDR- SDRAM can address. Although the i845D supports ECC, it cannot handle buffered modules, which is why 1 GB DIMMs cannot be used at the moment, as these are all currently delivered as Registered DIMMs with buffer modules. Otherwise, as with the i845, PC100 and PC133 SDRAMs up to 3 GB are processed. In terms of speed, the new i845D is, as expected, between the i845 and the i850 with Rambus DRAM. The exact test results can be found in the current C't.