The Exact name is DPN 4GJJT
AMD 785 AM3 motherboard.
- DDR3 PC3-12800 • CL=11 • Unbuffered • NON-ECC • DDR3-1600 • 1.35V • 256Meg x 64 •
- Max Ram is 8 gigs
Edit: according to Wikipedia an AM3+ Processor may work on a AM3 motherboard with an updated BIOS. Socket AM3+ - Wikipedia .
Copied from Wikipedia:
Some manufacturers have brought AM3+ support to some of their AM3 motherboards via a simple BIOS upgrade.[4]Mechanical compatibility has been confirmed and it is possible for AM3+ CPUs to fit in AM3 boards, provided they can supply enough peak current. Another issue is the use of the sideband temperature sensor interface for reading the temperature from the CPU. Therefore, some CPU PWM fan headers may only run at full speed. Also, certain power-saving features may not work, due to lack of support for rapid VCore switching.[5]
While AM3+ CPUs are technically pin-compatible with AM2 or AM2+ boards, they cannot work with them due to the lack of a DDR2 controller on the CPU.
So basically you need to contact DELL SUPPORT and find out if your motherboard will support the FX 8350 and if they have a BIOS update. If you Motherboard became End Of Line before the AM3+ came out most likely there wouldn't be a BIOS update for AM3+ Processors. Reason why I mention that is because my Asus Motherboard is considered to be EOL thus Asus will not have any more BIOS updates for it. Dell may have the same or similar policy.