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Workstation won't boot with RAID controller installed.
I have an old HP xw4400 workstation I want to turn into a file and printer server for my network. It's the standard config for a RB362UT, save for the fact that two additional 1GB strips of DD2-5300 ECC RAM have been added for a total of 4GB. I have too many drives for the onboard Intel RAID controller, so I've opted to use a 3ware 9590SE-8ML I bought from a friend.
The problem is I'm having the damnedest getting the system to boot with the controller installed. I've tried everything I can think of, and scoured the internet, but just can't get this config to work. So I turn to you in the hopes that maybe I've missed something. The system boots just fine without the controller card in the second PCIe x16 slot on the board (the first being occupied by a video card). However when you install the RAID controller, the machine will turn on but no image will be displayed on the screen and the CPU fan will remain spinning at full speed without spinning down. It does this with both an ATI and NVIDIA video card. Thinking it was a problem with the RAID BIOS not being downloaded, I've disabled the Intel RAID controller and AHCI. It's running in IDE emulation. I've flashed the BIOS on the machine, and the firmware on the 3ware is up to date. I even removed the RAM while having the 3ware RAID controller installed, and it produces a POST code consistent with there not being any RAM installed. When you try to put in RAM one at a time it doesn't POST as before.
Now I also have an HP dc7800p desktop (GQ644AW), and the controller works fine in that machine. It works fine whether I have the Intel RAID controller enabled or disabled and running in IDE emulation mode. It boots up without issue. I could just use that system. It does have onboard video, making it less of a power suck. However I want to use the xw4400 since it supports ECC RAM. The admin in me is going server = ECC RAM.
So what the hell is going on? Have I missed something? Also do I really need ECC RAM for a home media/file/print server?