TweakMax has posted a review on the Dell Poweredge 2550 Server

Intel CPU´s + more than 512 MB RAM = i8XX and RDRAM? No, actually not... Is it BX then? Nope, it´s a ServerWorks HE-SL chipset that is powering a lot of server motherboards today. ServerWorks has found a niche that Intel currently not is serving, providing the cabability to, among other things, run Intel CPU´s in up to 8x configurations featuring up to 8 GB of plain ol´ ECC DIMMs, making it unneccesary for server manufacturers to jump onto the RDRAM bandwagon.

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