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Q6600 for 6 quid is another option?
The E6300 dual core was popular on that socket (there were two cpus called E6300), but quickly got superceded by the Q6600 quad core. The Q6600 was popular so I'd expect you'll be able to find one.
Please elaborateThe modded 771 quad core xeons are also cheap as fries.
Please elaborate
Many motherboards work out of the box with the xeons. I've currently got an E5450 running at 3.5ghz on an old dell 330.Please elaborate
sounds good, are they pre modded for 775?I've got some E5440s pulled from multi-socket servers - unfortunately I had no space to keep the servers not that they'd be worth running now. I'd swear we had a quad socket one with 5000 series Xeons but it must have been LGA1366 as I can't see any quad CPU 771 boards and it was too long ago for 2011.
A Q9550 would be a good shout if you can pick one up cheap and you have the right motherboard chipset for it. My old one did 4.13Ghz in a P45 board.