" If you are not running NVMe-SSDs (at least for bootable C-Drive), I would correct that firs "1. I am booting from a Samsung ssd but my motherboard does not have NVMe or M.2 chip slots. At least to my knowledge.  2. Another user above said I could upgrade the cpu, why do you think I shouldn't? See above 1. Now-days, 2.5-inch SATA-3/600 SSD is minimum. A M.2/NVMe SSD is about 5-times faster than any SATA-SSD . Use it for Bootable-C, and it will provide the new speed you are looking for. If your motherboard doesn't have slot, you can install this NVMe PCIe Addin card. 2. Why? Because:a. Dell typically only includes BIOS microcode to support the Intel processors it originally shipped with during it's run. These select processors are often listed in Dell's literature for the machine (ie, PDF Service Manual).b. Machine is already 8 years old (ie, pretty old and soon approaching it's intended life-span)c. I suggest you "baby it" if you plan to keep using it. Remember that if you break something ... Reliable Operation will drop to 90% or lower (basically killing machine forever).d. This motherboard and cpu was Intel's Enthusiasts-Class solution for the time. Whatever Intel i7 or i9 processor you currently have is fast-and-fine ... and should last you for the life-time of the machine . 
Is the motherboard for a Alienware Area-51 R2 compatible with RTX 3080 or RTX 3090 Ti from Nvidia? Can the power supply support this? Is this even possible? 
Area-51 R2, RTX 3080, RTX 3090 Ti compatible?