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8x7135 doens't give you 1400 mA...so either you're looking for 8x7135 with 2800 mA or 4x7135 and 1400 mA...
Have a look on www.shiningbeam.com
They just got new 4x7135 + 8x7135 back in stock again! 5,95$/board + 5,95$ intl shipping is a bargain
CPF Discount Code is CPFuser..mine are already shipped^^