Are you using powered riser or can the board handle the cards on there own.

i have a rig with 4 cards but the 4th card causes crashes after mining for a short time, the card goes to 0/0 kh/s and the temp goes to 511c but the thing is ive swapped the cards around and they all work if there are just 3 and its not a power issue as i have tested by using 3 750w psus daisy chained.  i've also tried different risers and no change im really stuck for what wrong

windows 7
cgminer 3.3.1
cgwatcher 1.3.4
CCC version 13.11

Hi, Hashbros
My mining rig is coming off a two month litecoin run on Monday and im looking for a new permanent btc switch pool, willing to dedicated 2.1mh/s for over a month to this pool

would i be able to get my account activated
Name: koreanjesus

For anybody thats interested, my earnings since the 1st of January (not payouts but what i actually mined that day) its also been adjusted for loss on un-exchanged 
and includes per MH/s average

Here: https://docs.google.com/spreadsheet/ccc?key=0AgkEb1Y8zoX9dGs1MFVDQzFmYmF3Y0RtbkN6WFBxTHc&usp=sharing

Unfortunately not, I'm in Ireland so I need the transfers in euro but service looks pretty good.

I've been waiting to be verified now for 30+ days, I've somewhat given up and gone to Kraken but there exchange rate is a good bit lower then MT.Gox so its a bit disappointing. The one great thing about kraken though is the verification process which takes minutes and for me (living in Europe) having those quick SEPA transfers are really handy.