Phenom x2 P650 to ASUS X52n(K52n)

Need newer BIOS version with(or) Phenom x2 P650 support for X52N. Now windows display this - AMD Processor Model Unknown, 2600 МГц x2. Thanks!
----------- Device -----------
Asus X52N
AMI 2.13 (now)
Phenom x2 P650 Dual-Core 2600