Thread: SEV Betatest...
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Old March 18th, 2005, 12:38 PM
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Default Re: w00t Beta Testing w00t

Quote:
Instar said:
If you could tell me how you built that, I would like totally buy you a burrito next time I see you in person.
I've heard of RAM disks, but never actually ever used them. It is RAM that is mounted as a hard drive, right?
Also, I assume they're communicating over the network to do work, right? or did you hook them up in some other way?
Ram disks can be software and use set aside blocks of system ram, or they can be hardware based. The ones I used were just little plastic things that plugged into the IDE cables. Originally they had Disk images on them used for testing new PC’s that were being shipped without software. Not sure what kind of ram is actually in them, but they work like a small very fast hard drive.

The connection between the boards is gigabit ethernet. Windows used just plain old tcp/ip, with nix it used UDP. Master board has a quad port LAN card in addition to the onboard connection.

To get started, I just searched Linux clusters and dl’d the directions for building it. But like I said, it was never fully reliable as a Nix cluster. As a windows cluster, it just ran like five systems that shared one raid array. I had to cut everything out of the OS install that was not needed in order to make it fit on the ram drive, then I just ghost cast the end product to the ram drives.

For the bios hacking, I will have to try and find the guys email addy for you. I just looked in some OCing forums where they talked about custom bios files and then started asking if anyone could set a file up to do what I wanted. After some wasted time, I got pointed to this guy who had built some seti stacks and then he knew another person that had a custom file for a biostar board. And so forth and so on. Then one thing led to another and with about $1000 bucks worth of chips and boards and some ram plus an arm full of stuff I had sitting around, and a few parts begged and barrowed, I put it together. Then I bounced between bliss and pulling my hair out for a couple of months. The problem seemed to be that the system clock generators hertz changed with temp. The hotter boards in the center seemed to fall behind and then. I kept messing with it until I had to give the quad network card back to it rightful owner. After that I just ran windows
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