As a soon-to-be Ext 4 or Ext 6 owner, I've been reading this thread with interest, origanally to find out how the PCIE lanes are used.
Now I'm a little confused: the review at Madshrimps
http://www.madshrimps.be/articles/ar...board-Review/4 shows the PLX PEX8608 chip next to and almost underneath the chipset cooler, down in the bottom corner where a southbridge chip would live back in the day. However, the Extreme 6 changes this, for example the review at
http://www.overclockers.com/asrock-p...rboard-review/ shows the PLX chip in the 'Southbridge' position, with the P67 chip moved up above the PCIE slots, with its troublesome heatsink cover. So, does the PLX chip even need a heatsink?
The stock cooler does look like it'll do more harm than good. The chipset heatsinks from Enzotech might work, for example
http://www.enzotechnology.com/cnb_evgai.htm looks like it'd fit with a couple of holes drilled in it, and would be so much better than the stock. It looks pretty, too.
The Zalman ZM-NB32K might work too, and they're heaps cheaper.
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