I'm upgrading my Dell Optiplex 360 to a 380 mb so I can double my ram and use a quadcore 9650.  Will any 9650 WORK or do they come in different sockets?  Hi

I checked and both MOTHERS have pcie slots the same on both boards. So the card should work.Optiplex 380 motherboard... If it lists the 9560 on its SUPPORT listing then you should be all set. It should be a standard socket 775 CPU.

 *You might NEED a better heatsink for the extra TDP heat that will be given off since the heatsink you started with is likely rated for 65 watts since the E7500 is a 65 watt TDP CPU and the new Core 2 Quad is a 95 watt TDP CPU.

Its also the kind of upgrade that will point out if you have a borderline power supply, so if it starts to acts funny after the CPU upgrade like failing to boot with black screen ETC then you could be looking at needing a better power supply as well. If you already have a video card in it that is drawing heavy on the power supply the extra 30 watts of power consumption could be a tipping point to a non booting system or unstable system. If you have a better than stock power supply in it you should be all set but if its a 300 watt power supply you could find yourself needing a better power supply that can power the heavier power need.