Table 6-10 System board descriptions and part numbers
Description Spare part number
System board (includes integrated processor)
All system boards use the following part numbers:
xxxxxx-001: Non-Windows operating systems
xxxxxx-601: Windows operating system
● Intel Core i7-1270P processor, models with WWAN N21920-xx1
● Intel Core i7-1265U processor N21918-xx1
● Intel Core i7-1265U processor, models with WWAN N21919-xx1
● Intel Core i7-1255U processor N21916-xx1
● Intel Core i7-1255U processor, models with WWAN N21917-xx1
● Intel Core i5-1250P processor, models with WWAN N21915-xx1
● Intel Core i5-1245U processor N21913-xx1
● Intel Core i7-1245U processor, models with WWAN N21914-xx1
● Intel Core i5-1245U processor (Realtek PD USB-C) N22180-xx1
● Intel Core i5-1235U processor N21911-xx1
● Intel Core i5-1235U processor, models with WWAN N21912-xx1
● Intel Core i5-1235U processor (Realtek PD USB-C) N22179-xx1
● Intel Core i3-1215U processor N21909-xx1
● Intel Core i3-1215U processor, models with WWAN N21910-xx1
Models with discrete graphics memory
● Intel Core i7-1265U processor, models with WWAN N21908-xx1
● Intel Core i5-1255U processor N21907-xx1
● Intel Core i5-1255U processor, models with WWAN N21921-xx1
● Intel Core i5-1245U processor, models with WWAN N21906-xx1
● Intel Core i5-1235U processor N21905-xx1
Before removing the system board, follow these steps:
1. Prepare the computer for disassembly (see Preparation for disassembly on page 41).
2. Remove the bottom cover (see Bottom cover on page 41).
3. Remove the battery (see Battery on page 51).
4. Remove the fan (see Fan on page 57).
When you replace the system board, be sure to remove the following components (as applicable) from the
defective system board and install them on the replacement system board:
● Memory modules (see Memory modules on page 43).
System board
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