Hi, Just wondering if either of these would be suitable for BI running 4 Dahuha's Dell Optiplex 9020 SFF, i7 4770 QUADCORE 3.4GHZ 8GB RAM 500GB HD WIN7 PRO+COA or Dell OptiPlex 9020 SFF, Core i5-4570 , 8GB, 500G SATA , W10P COA Thanks