Hi

Have just got a Dell Precision 690 and planning to fit a second CPU.

Being looking around to source a secondhand heat sink  at a reasonable price.  So far the best I can do is for a genuine Dell one is  around €60 posted to Ireland.

As I plan to do several other upgrades am trying to keep the cost down. 

I have managed to track down the following two types of heat sink and would appreciate if anybody could tell me if they are suitable for my 690.

Akasa AK-387 2U Aluminum Cooler for Intel Xeon LGA771 CPU's

http://www.scan.ie/products/akasa-ak-387-2u-aluminum-cooler-for-intel-xeon-lga771-cpus

INTEL PASSIVE HEATSINK LGA-771 E30338-001

http://www.ebay.co.uk/itm/370597918568?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649

Thank you.