askman's blog View Details
Archive for March, 2017
Posted by askman | Mar 22, 2017 @ 03:56 PM | 47,028 Views
I haven't been upgrading my computer for last few years but as I've been doing more Image processing, I found myself needing more processing power with multiple GPU. The only thing was that my pocket book would allow me to purchase much of an upgrade over what I already had. (i5-3570k based ) Recently, I've been seeing used Xeon Processors for low price on Ebay. Xeon E5-2650 is sandy bridge CPU with 8 core and 16 thread running at 2.0ghz (upto 2.8ghz turbo) and I found one on sale for 25 bucks shipped. I've also recently picked up an E5-2670 for 70bucks shipped. basically going from 2.4ghz to 3.0 ghz with all the cores (3.3ghz with single core) cheap 20% performance upgrade!


These Xeons are lifecycled out of server farms, but they have been ran conservatively and have lot of life left in them. They also uses DDR3 Registered ECC Ram, which are also available used. The only problem is that these processor requires certain motherboard. I have found new motherboard with X79 chipset , but they were 160 bucks or so. Because I wanted to run at least 2 or 3 GPU, I could not use pre owned server motherboard which are about 100 bucks with First gen E5 xeon, you couldn't run X99 board (which can only run with 3rd gen I believe)

After some careful research, I ran across used HP workstation that could run E5 chipset. HP Z420, Z620 and Z820 were originally sold as high end...Continue Reading