Boxed Intel Celeron M 350J, 360J and 370 (Dothan C-step) will undergo the following changes :
Products will support Optimized Voltage ID (OVID)
OVID methodology defines a VID range that will be given for each boxed Intel Celeron M processor product instead of a single VID
No changes expected for platform HW, BIOS/SW and processor thermals
The conversion to OVID will reduce power variation among boxed Intel Celeron M processor C step production parts
New S-Spec, MM numbers for Production units supporting OVID; 1.3GHz 350J SL86L to SL8MK, 1.4GHz 360J SL86K to SL8ML, 1.5GHz 370 SL86J to SL8MM
Source: Intel Change Logs