nukemaster :
Video cards run off the integrated pci-e controller(in the cpu) on most newer Intel systems. So you should be fine.
If you can post the exact board model number we can get more information.
Thank you.. here are the full specs (I'm looking to change the video card to the 780ti later)
1 Dell Precision T7610 1300W Chassis
1 Dual Intel Xeon Processor E5-2680 v2 (Ten Core HT, 2.8GHz Turbo, 25 MB),Dell Fixed Precision
Tx610
1 32GB (4x8GB) 1866MHz DDR3 ECC RDIMM
1 No Media Card Reader
1 512GB 2.5inch SATA Solid State Drive
1 Intergrated LSI 2308 6Gb/s SATA/SAS Controller - SW RAID 0,1,10
1 2nd Heatsink
1 8x Slimline DVD+/-RW Drive
1 Chassis Intrusion Switch
1 Dell Precision T7610 Regulatory label
1 3 GB NVIDIA Quadro K4000 (2DP and 1DVI-I) (2DP-DVI and 1DVI-VGA adapter) 1 Internal Speaker
1 No External Speaker
1 Dell (TM) MS 111 USB Optical Mouse
1 UK/Irish (QWERTY) Dell KB212-B QuietKey USB Keyboard Black
1 Dell Applications for Windows 7
1 C2 SATA/SSD 2.5 Inch, 1-4 Hard Drives
1 Non RAID
1 Dell Precision T7610 Packaging
1 Dell Precision Ship Material