![]() It’s physically write-protected within the BIOS and does not get upgraded when you flash the BIOS. If you have the later 003 revision then you can use either X55xx or X56xx CPUs. The executive summary to what I’m about to explain is that if you have revision 001 or 002 then you can officially use only Xeon X55xx CPUs. As you can see from the image this board is an 002 revision. The revisions are indicated by 001, 002 or 003. The Z800 board comes in three different revisions, indicated by the AS# number printed on the white sticker located directly below the big black chipset heatsink. There’s no cheaper way to get 12 cores of Xeon power under your desk. I’m not one to give up in the face of a technical challenge and besides I’d just forked out a hundred notes on the board so the rest of this article will go through all the steps in detail that you would have to do in order to get one of these beasts up and running yourself. Buyers of the Z800 certainly received their money’s worth compared to an anonymous box filled with generic parts. The list goes on…Ĭlearly this is a server motherboard adapted only slightly to fit into HP’s proprietary case with HP’s proprietary power supply and cooling system. ![]() There’s a separate power connector for the memory banks with a proprietary connector. The large ATX power connector is non-standard. The mounting screws will not mate with any of the ATX holes in a motherboard tray. It will not fit into any ‘normal’ PC case, not even an EATX tower case. So that’s what I did, and here it is.Įxcitement quickly turned into a daunting realisation that I may have bitten off more than I could chew. ![]() You can now pick up a brand new replacement motherboard for an HP Z800 on ebay for £100. And it was very expensive, much too expensive to justify forking out for one.įast forward four years and times have changed. I looked around and noticed that HP were doing a very similar board with two sockets and, crucially, it was packaged up into what looked like a normal PC tower case. ![]() We ran Redhat Enterprise Linux on them and they were, and still are, extremely fast linux servers that could operate as physical boxes in our production environment or virtuals in development. In most cases two sockets were populated with Intel Xeon X5670 CPUs, hex core devices with 12Mb of cache memory. About four years ago now the company I work for were investing in some new servers for a project that we were working on and what turned up were quad LGA1366 socket Xeons with support for up to 192Gb of memory. ![]()
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