Proc Kit
A look at what is currently available on eBay
Gaming build, mid-range price, opinions?
Case: COOLER MASTER Storm Scout SGC-2000-KKN1-GP Black Steel / Plastic ATX Mid Tower Computer Case - Retail
motherboard: ASUS M4A79 Deluxe AM3/AM2+/AM2 AMD 790FX ATX AMD Motherboard - Retail
video card: 4X POWERCOLOR AX4850 1GBD3-PH Radeon HD 4850 1GB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card - Retail
PSU: CORSAIR CMPSU-850TX 850W ATX12V 2.2 / EPS12V 2.91 SLI Ready CrossFire Ready Active PFC Power Supply - Retail
proc: AMD Phenom II X2 545 Callisto 3.0GHz Socket AM3 80W Dual-Core Processor Model HDX545WFGIBOX - Retail
memory: mushkin 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Dual Channel Kit Desktop Memory Model 996599 - Retail
HDD: SAMSUNG Spinpoint F3 HD502HJ 500GB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive - OEM
heatsink: ZALMAN CNPS9900LED 120mm 2 Ball CPU Cooler - Retail
And yes that is 4 video cards I've put. Total price: $1236.89 CAD
Opinions?
First off, yes you CAN do four Crossfire cards. I own that same board and it supports Quad Crossfire.
All in all it's an excellent setup. My only suggestion would be more hard drive space. You can get a 1TB drive for a little more and you can NEVER have too much storage.
(I didn't check the specs on the PSU but obviously make sure it had the amperage to power those four video cards, that's quite a draw.)
Items recently purchased from this site
HP 643067-B21-HPQ E7-4870 2.4GHz-30MB 10C PROC DL580G7 - Kit, 597870-B21 - HP DL980 G7 Xeon X6550 (2GHz/8-core/18MB/130W) 4 Proc Kit - NEW, HP/Compaq 588156-L21-HPQ X7542 2.66GHz-18MB 6C 2PROC DL580 G7 - Kit, HP O8435 2P PROC KIT BL685 G6 539816-B21, S HP AMD 8389 QC 2.9GHz Proc Kit BL685c G6 491341-B21, S HP AMD 8387 QC 2.8GHz Proc Kit BL685c G6 491343-B21, 9117-570 IBM P570 pSeries 4 Way 1.65GHz Proc. Server w/ APV - Rail Kit Included, S HP AMD 8381HE QC 2.5GHz Proc Kit BL685c G6 508864-B21, HP 643073-B21-HPQ E7-4830 2.13GHz-24MB 8C PROC DL580G7 - Kit, S HP AMD 8382SE QC 2.6GHz Proc Kit DL585 G5 502475-B21, HP 633412-B21-HPQ X5687 3.60GHz-12MB 4C PROC DL380 G7 - Kit, HP 583109-B21-HPQ OPT6172 2.1GHZ-12MB 12C 2PROC DL585 - Kit, HP 587498-B21-HPQ X5680 3.33GHz-12MB 6C PROC DL380 G7 - Kit, HP 633410-B21-HPQ X5690 3.46GHz-6MB 6C PROC DL380 G7 - Kit, HP DL360 G6 XEON X5570 2.93GHZ PROC KIT 507674-B21 NEW, HP DL360 G6 XEON X5560 2.80GHZ PROC KIT 507676-B21 NEW, 587482-B21 HP XEON X5650 PROC KIT FOR DL380 G7 , HP 588150-B21-HPQ E7540 2.0GHz-18MB 6C PROC DL580 G7 - Kit, S HP AMD 8380 QC 2.5GHz Proc Kit DL585 G5 502474-B21, HP/Compaq 588156-B21-HPQ X7542 2.66GHz-18MB 6C PROC DL580 G7 - Kit, 468121-B21 AMD Opteron 8354 4proc kit DL785 G5, HP 589075-B21-HPQ E7530 1.86GHz-12MB 6C PROC BL680C G7 - Kit, HP 621552-B21-HPQ X5667 3.06GHz-12MB 4C PROC DL360 G7 - Kit, HP 633414-B21-HPQ X5675 3.06GHz-12MB 6C PROC DL380 G7 - Kit, HP XEON X5670 PROC KIT FOR SL160Z G6 591896L21, HP DL160 G5 XEON X5470 3.33GHZ PROC KIT 495612-B21 NEW, 468120-B21 HP AMD Opteron 8356 4proc kit DL785 G5, S HP AMD 2xQC 8356 2.3GHz Proc Kit BL685 G5 447977-B21, LB215AA HP X5675 3.06 12M 95W 6C Z600/800 PROC KIT-NEW BULK, LB215UT HP X5675 3.06 12M 95W 6C Z600/800 PROC KIT-NEW BULK, HP DL360 G6 XEON X5550 2.66GHZ PROC KIT 505878-B21 NEW, HP DL160 G5 XEON E5472 3.0GHZ PROC KIT 448365-B21 NEW, 507674-B21 HP Xeon X5570 Proc Kit for DL360 G6 , HP ML370 G5 XEON X5460 3.16GHZ PROC KIT 458408-B21 NEW, HP 507791-B21-HPQ X5570 2.93GHz-8MB QC PROC BL460C G6 - Kit, 587493-B21 HP XEON X5670 PROC KIT FOR DL380 G7-NEW BULK, 614547-B21 HP XEON X5677 PROC KIT FOR DL380 G7, 614547-L21 HP XEON X5677 PROC KIT FOR DL380 G7, WG735AT HP XEON X5677 PROC KIT FOR Z800, 587493-L21 HP XEON X5670 PROC KIT FOR DL380 G7 , 587493-B21 HP XEON X5670 PROC KIT FOR DL380 G7 , 491511-B21 HP X5550 PROC KIT FOR DL160 G6-NEW BULK, WG732AA HP X5660 2.80 12M 95W 6C Z600/800 PROC KIT-NEW BULK, WG732UT HP X5660 2.80 12M 95W 6C Z600/800 PROC KIT-NEW BULK, 507676-B21 HP Xeon X5560 Proc Kit for DL360 G6 , HP DL160 G5 XEON X5272 3.40GHZ PROC KIT 448371-B21 NEW, HP 495934-L21-HPQ X5550 2.66GHz-8MB QC PROC ML370G6 - Kit, 487375-B21 HP E7450 PROC KIT DL580 G5, 492344-B21 HP E7450 2P PROC KIT BL680C G5, HP 443691-B21 F/S RETAIL E7340 BL680C G5 2P PROC KIT , 587491-B21 HP XEON X5660 PROC KIT FOR DL380 G6 / G7, 587491-L21 HP XEON X5660 PROC KIT FOR DL380 G6/G7, 588064-B21 HP XEON X5660 PROC KIT FOR DL360 G7, 590617-B21 HP XEON X5660 PROC KIT FOR DL180 G6, 588064-L21 HP XEON X5660 PROC KIT FOR DL360 G7, 590617-L21 HP XEON X5660 PROC KIT FOR DL180 G6, 591898-B21 HP XEON X5660 PROC KIT FOR SL160Z G6, 601238-B21 HP XEON X5660 PROC KIT FOR ML350 G6, 601238-L21 HP XEON X5660 PROC KIT FOR ML350 G6, 591898-L21 HP XEON X5660 PROC KIT FOR SL160Z G6, 589723-B21 HP XEON X5660 PROC KIT FOR DL160 G6, 589723-L21 HP XEON X5660 PROC KIT FOR DL160 G6, WG732AT HP XEON X5660 PROC KIT FOR Z800, HP 507792-B21-HPQ X5560 2.80GHz-8MB QC PROC BL460C G6 - Kit, HP BL460C G7 X/2.53 E5649 6C-12MB 80W PROC KIT, WG731AA HP X5650 2.66GHZ 12MB L3 Z600/800 PROC KIT-NEW BULK, WG731UT HP X5650 2.66GHZ 12MB L3 Z600/800 PROC KIT-NEW BULK, S HP ProLiant QC E7430 2.13GHz Proc Kit 487378-B21, NEW OPEN BOX 507793-B21 HP XEON X5550 PROC KIT FOR BL460 G6, 492232-B21 HP DL380 G6 X5560 2800-8MB/1333 QC PROC KIT-NEW BULK, 505878-B21 HP X5550 PROC KIT FOR DL360 G6-NEW BULK, 505878-B21 HP Xeon X5550 Proc Kit for DL360 G6 , 448192-B21-New Bulk PROC O/8354 2.2 DL585 G5 ONLY 2P KIT, 448192-L21-New Bulk PROC O/8354 2.2 DL585 G5 ONLY 2P KIT, 598113-B21 HP XEON E5620 PROC KIT FOR BL2X220C G6, 587482-L21 HP XEON X5650 PROC KIT FOR DL380 G7, 587482-B21 HP XEON X5650 PROC KIT FOR DL380 G7, HP BL460c G6 X5650 SIX CORE Proc Kit 595727-b21 Clean, HP 625075-B21-HPQ E5649 2.53GHz-12MB 6C 1P PROC KIT ML - Kit, [N] HP O2435 PROC KIT BL465C G6 - 539792-B21, New CYPRESS CY3653 Wireless USB PRoC Development Kit, 462711-B21 HP QC X5450 ML370 G5 PROC KIT, LB211AA HP XEON E5645 2.40 12MB/1333 6C Z600/800 PROC KIT-NEW BULK, LB212AA HP XEON E5649 2.53 12M 80W 6C Z600/800 PROC KIT- NEW BULK, LB212UT HP XEON E5649 2.53 12M 80W 6C Z600/800 PROC KIT- NEW BULK, HP 610861-B21-HPQ E5640 2.66GHz-12MB QC PROC BL460C G7 - Kit, HP - HPQ E5649 2.53GHz-12MB 6C 1P PROC KIT ML, 490069-001 HP DL380 G6 X5560 2800-8MB-1333 QC PROC KIT-NEW BULK, 570804-B21 HP XEON X5550 PROC KIT FOR SL160Z G6-NEW BULK, 587478-L21 HP E5630 (2.53GHz/4-core/80W/12MB) Proc Kit, 583379-B21 HP Xeon L5530 Proc Kit for DL360 G6 , 505880-B21 HP Xeon E5540 Proc Kit for DL360 G6 , 311-7748 - JU769 Dell Xeon X5365 Proc Kit Precision 690, Applied Materials 0242-08947 KIT, PROC/PURGE LINE POS. D, 10RA AMAT, 492232-B21 HP XEON X5560 PROC KIT FOR DL380 G6, 492232-L21 HP XEON X5560 PROC KIT FOR DL380 G6, 495906-B21 HP XEON X5560 PROC KIT FOR ML350 G6, 495932-B21 HP XEON X5560 PROC KIT FOR ML370 G6/DL370 G6, 495906-L21 HP XEON X5560 PROC KIT FOR ML350 G6,