Move the rad in front of the top fan,that would solved the problem that both JD and Bigben talk about ,you would be above the res. and give more slak to your tubing 
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8rda3+,xp1600@1.8gig, OCZ EL 256meg x 2, TI4200,
MAZE 3,RIO 1700, BIX size used heater core.
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