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March 2nd, 2016 13:00
Best cpu for optiplex 740
Hi everyone. I'm currently upgrading my old Optiplex 740 Desktop, which is running an AMD Athlon 64 x2 4800+.
What would be the best compactible cpu for this machine? Preferably a quad core, but I don't think there are any quads compactible with my motherboard.
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speedstep
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47K Posts
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March 3rd, 2016 07:00
Bios should be upgraded BEFORE changing CPU. Otherwise you can have a system that wont even boot. There are also DIFFERENT Revisions of the motherboard so there is no one size fits all for all versions for all revisions for always forever. The various Sizes have smaller and smaller power supplies. This is also a factor.
BIOS - BIOS
Optiplex 740 System BIOS
http://downloads.dell.com/firmware/O740-227.EXE
Processors are not mechanical or chemical engines. They do not go into thermal runaway. They DO Burn up and die with improper heatsink mouniting and or lack of thermal compound.
Higher performance Heatsinks are not like the aluminum versions. They have copper heat pipes.
These are usually for 130W processors vs 65W or 95W processors. The POWER SUPPLY must be larger for some which is why QUADS DO NOT GO INTO USFF versions and or may require a TOWER 305W or greater power supply.
Changing the CPU is not validated or supported by Dell. Which ones work or are Validated with the latest bios can be found by asking Chiris M what the Dell part numbers are. Same with the heatsinks. There are REQUIRED copper performance heatsink upgrades so it is NOT possible that the cheap aluminum heatsink is used with 85W+ and up cpus.
Spec lists these
noahvisch
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March 3rd, 2016 10:00
Ok. So the heatsink you mentioned fit in the desktop model right? I have the enchanced motherboard by the way.