only OEM CPUs don't come with cooler.
2 5850s @ 700 kh/s (concurrency 5600) only uses 50 mb in cgminer.

put all the component at the bottom of the box, and suspend the video cards from the top using string+sticks. You'll definitely need extenders/risers for this though, but using this configuration allows for more space between the cards for better cooling. speaking of extenders, if you plan on using them, you don't need an expensive motherboard. all you need is one with enough pice slots (any width, even x1).

I'm using thread-concurrency 6500 on 2 cards, and it's only 50 mb for both. So unless memory usage grows exponentially with thread-concurrency, the memory usage shouldn't be that high.

you don't need that much ram, 2x5850s only uses 50 mb on cgminer
you don't need a cpu cooler, the stock one is just fine (unless you want to go passive cooling)
you don't need a case, just put it in a plastic storage box
you don't need a super expensive gold PSU. there are less efficient ones with comparable outputs for $150 or less.

you can't into probability.

anyone getting this?
[2013-04-08 21:58:11] Stratum connection to pool 0 interrupted

i'll buy it for 150 satoshi.

>probability
>calculus
2/10 good effort

go to google:
site:bitcointalk.org your search term here

if you change the merkle tree in any way (add, delete, or reorder transactions), you also get new hash.

70xx

--scrypt --thread-concurrency 5632 -I 18 -g 1 -w 256

Vircurex, btc-e: why does it cost me 0.01 BTC to make a withdraw? the transaction fee for "spam" transactions isn't even that high, and you only pay 0.0005 BTC tx fee on the transaction.

why do you need 8 gb of ram? cgminer barely uses 50 MB when mining (scrypt) on 2 cards.

each card's clocks can be set independently of each other. there is no reason to run separate instances for each card. for example, to configure clocks for multiple gpu, you can use
"--gpu-engine 900" to set 900mhz for every card, or "--gpu-engine 900,850,875" to set 900mhz for card0, 850mhz for card1, 875 for card2, etc.

1. make a backup of your %appdata%\bitcoin\ directory
2. install latest version of bitcoin (0.8.1)
3. delete everything in %appdata%\bitcoin\ except for wallet.dat
4. wait for the blockchain to sync

if you don't see any coins, check all your addresses on https://blockexplorer.com/ to see if they contain any balance.

issues with pi:

• low memory
• slow disk access, plus you will wear out your SD card. further compounded by lack of memory to use as cache
• slow cpu, which is problematic when syncing blockchain

because the averaging period for your pool is longer than your miner

depending on your card, you can go up to 950 mhz without any voltage adjustment. just use cgminer (which has built-in overclocking without limitations). please note that above 850 mhz, the card may be unstable for anything other than 2D/mining, so don't run any games, or use aero mode.

90+: about to get throttled
80-90: hot
70-80: safe
<70: cool