That is a nice machine.
Back around 2001 or 2002 I bought a big brother version of it (the XW), but it's in rough shape unfortunately.
They're basically the same machines, but the XW has a slot-2 440GX motherboard instead of slot-1 440BX. Ironically, I think your slot-1 model ends up having more CPU upgrade potential. But mine takes 2GB RAM, so 😜
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Sometime later I found a 3.5" hard drive tray for the 5.25" bays of these machines on CDW, which really surprised me, so I bought one (don't have a picture of it). Back when this used to be my daily desktop, I had a 3rd hard drive installed down there. Now it's just a place to stick the excess length of a SCSI cable.
My transgressions:
1) I never did figure out how to remove those expansion bay covers. So they broke. I think the top one is still intact, but it might be taped, I'm not sure.
2) I loaned it to someone once and they ripped one of the PSU cables snagging it in the case. I can fix that so not a big deal.
3) I was desperate to figure out what 512MB modules this thing requires. The parts guaranteed by Crucial didn't work. The only part I found that worked was too tall to fit, so I bent the drive cage to get it in. 😒
4) I also cut away some of the CPU shroud for the same reason. 😒 😒
I was a moron.
I know now what type of RAM these require. It needs the type that has 36 chips but it needs those chips to be stacked double high so the PCB isn't too tall. This 440GX chipset should work with 512MB modules that only have 18 chips on them (32Mx8 type), but HP never bothered to update the BIOS to allow it. This combined with the inability to take tall DIMMs made it pretty confusing to understand what HP intended, but I still wish I hadn't been so over-eager to force in a module that didn't properly fit. At the time, these Kayaks weren't as unique/special as they are now.
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It always seemed odd to me that there's no "Xeon" badge, it's just a standard "Pentium II" badge instead. I guess Intel didn't make Xeon badges?
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Originally, this machine had HP branded unbuffered ECC memory. Now there's no HP memory left in it. It's all registered memory I scrounged up elsewhere. I've insulted this machine by installing modules from IBM and Compaq, as well as that stupid extra tall module that you can see is still installed at the bottom. It's already there.. not much point removing it now.
In recent times the machine has sat idle. It has a pair of 450MHz P2 Xeons, it's original ST39102LW 9.1GB Seagate Cheetah drive, and it's original goofy and useless OpenGL accelerator that HP came up with back then. I turn it on once in a while just to make sure everything stays working and so the tantalum caps (which these machines use in abundance) don't explode from sitting too long.
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This is an HP Visualize FX4+ (I think). Whether it's FX4, FX4+, or FX6 is not clearly indicated anywhere. It's very long and heavy and a support bracket attaches the far end to the case. It's longer than a GTX260.
A variant of these cards was also used in HP's UNIX workstations.
The x86 version is a combination of an AGP Cirrus Logic CL-GD5480 and a PCI daughterboard which has all the HP OpenGL accelerator hardware on it. I think it's supposed to be derived from their PA-RISC CPUs, which were known for good FPU performance.
It's useless for any kind of gaming. It has no texture mapping so OpenGL acceleration only works with flat shaded polygons. Direct3D is not supported. DirectDraw is "supported", but it's a clunky addition that performs terribly. It gets it's ass handed to it by a cheap ATI Rage (I compared them).
You'll never guess where the motherboard was made:
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What about the XU board? Did they make that in the same plant?