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Torch in hand and a bayonet in every rifle

By Morally Inflexible in Morally Inflexible's Diary
Tue Mar 29, 2011 at 02:18:17 AM EST
Tags: (all tags)

I got "One Hundred Days" by Alan Schom at the friends of the library booksale, along with a bunch of other crap. Good stuff.

I also watched "Resident Evil: Degeneration" while I was working out. Well, I watched half of it. It was pretty bad, and I /really enjoyed/ all the live-action "Resident Evil" films. How do you screw up the "Models Vs Zombies" formula? computer-animate the thing, apparently.

So, I find myself with a bunch of dual quad-core nehalam 55xx xeons, in what appears to be supermicro SC822i-400RCB chassis.


Normally, I wouldn't buy used hardware, but aside from getting a good deal on modern kit, these things were assembled by some outfit out of Texas and then shipped directly to my co-lo where they ran until the company went out of business; I know no one else has gotten their grubby, unprotected fingers all over the things. (I'm still planning on rigging up some sort of public demonstration of how ESD damages hardware. I ordered an electrostatic fieldmeter, and am looking at 'zapper guns' or electrostatic simulators.)

now, the first problem is that these boxes have 3x 2GiB ram modules. 6GiB ram each. Nothing, really. So I talked to the folks I rent my office from, and bought a whole bunch of 8GiB ram modules. kvr1066d3q8r7sk3/24G I ended up paying something like $400 for every 24GiB pack of three; pre-earthquake pricing.

So this takes care of the first problem. The next problem is that the drives are not hot swap, and we all know how I feel about hot swap drives.

The nice thing about SuperMicro is that they are all about the interchangeable parts. The SC822T-400LP is nigh identical to the SC822i-400RCB that I'm stuck with, save for the backplane and hot-swap trays.

I ordered a shit-ton of CSE-SATA-822 backplanes, one for each sc822 I got.

so removing the 'fixed' disks is pretty easy, you remove one screw then slide it out real easy-like.

Next, I take out the fans and insert the backplane

after tightening the three screws that hold the backplane in I simply attach the SATA cables to the backplane in the prescribed order. (the only tricky bit is that the on board sata ports are enumerated starting at port 1, while the backplane starts at port 0)

after that, I'm ready to put the disks in the new drive caddies and slide them home at that point you are ready to insert the new ram put the fans back in, button it up, and leave it on memtest and then burn-in for a few days.

Shortly we will see if what they say about the 55xx being better than the amd G34 systems on a per-core basis is true or not.

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Poll
The warnings to use ESD protection put out by nearly all vendors of ICs
o "cover your ass" bullshit that is no longer needed because of advances in ESD hardening ICs. 0%
o Essential steps for building or repairing reliable computers 0%
o I don't know; show me some proof 0%
o I don't care. 0%

Votes: 0
Results | Other Polls

Related Links
o find myself
o supermicro SC822i-400RCB
o 3x 2GiB ram modules.
o the folks I rent my office from
o 8GiB ram modules. kvr1066d3q8r7sk3/24G
o SC822T-400 LP
o SC822i-400RCB
o a shit-ton
o CSE-SATA-822
o remove one screw
o slide it out real easy-like.
o insert the backplane
o tightening the three screws that hold the backplane in
o attach the SATA cables to the backplane
o slide them home
o insert the new ram
o Morally Inflexible's Diary


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Torch in hand and a bayonet in every rifle | 17 comments (17 topical, editorial, 0 hidden)
-1, Needs more horsecock (3.00 / 3) (#1)
by schlouse on Tue Mar 29, 2011 at 03:35:54 AM EST



You can tell the hardware guys... (none / 0) (#2)
by claes on Tue Mar 29, 2011 at 07:11:09 AM EST

from the software guys where I work. The hardware guys ALWAYS reach out with one hand and touch the chassis of whatever they're working on first, even if they're not opening it up. We don't have any high-voltage guys here -- you can tell them because they put one hand in their back pocket before going up to live equipment so that if they do get zapped it doesn't go arm-heart-arm which is the most dangerous.

I TRY to ground myself first, but I'm not sure how much I truly believe in the evils of ESD.

Another question, unrelated: Why not a free market of virtual machines? Virtual machine futures? Electronic real-time bidding on jobs?

post-earthquake RAM prices will be your Waterloo (none / 1) (#4)
by Ezra Loomis Pound on Tue Mar 29, 2011 at 11:06:10 AM EST

better stock up now.

:::"Let me tell ya, if she wasn't cut out to handle some fake boy online, well sister, life only gets more difficult, and you only get more emo as you age." --balsamic vinigga :::#_#:::
holy crap! (none / 0) (#7)
by lostincali on Tue Mar 29, 2011 at 06:31:19 PM EST

just how cheaply did you pick up those nehalem systems for? would they happen to include infiniband HCAs? the 55xx series on up are really good for certain memory-bound HPC applications.

"The least busy day [at McDonalds] is Monday, and then sales increase throughout the week, I guess as enthusiasm for life dwindles."

Torch in hand and a bayonet in every rifle | 17 comments (17 topical, 0 editorial, 0 hidden)
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