I have a Dell Precision 490 that has two LGA771 sockets and only one occupied socket - with a Dual core E5130 Xeon CPU running 2.0GHz rated at 80W TDP and it has on it a 80mm passive heatsink.

As the faster Quad core E5345 is also rated at 80W does that mean I could use a similar heatsink if I put one in the spare socket?

There's not any more room in the case for a heatsink bigger than 80mm, so I figure the TDP of the CPU determines the "class" of heatsink I need.

closed as off topic by Massimo, Tim Brigham, mdpc, Magellan, Ward Dec 16 '12 at 8:34

Questions on Server Fault are expected to relate to server, networking, or related infrastructure administration within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here. If this question can be reworded to fit the rules in the help center, please edit the question.


The E5130 was rated at 65W TDP not 80, but you could at one time buy them with E5335's in them and they have a TDP of 80, as did the E5345 so that'll be fine with the same heatsink too.

You should also be able to fit an E5350, though they're hard/impossible to find.

Oh and I'd strongly suggest you update your BIOS to the latest version whatever way you go.

Not the answer you're looking for? Browse other questions tagged or ask your own question.