Lenovo ThinkPad W520 4284 Hardware Maintenance Manual page 148

Table 43. Parts list—Overall (continued)
No. FRU (Overall)
16
System board assembly for W520 Q3, AMT, TPM, no RAID adapter
• 4249-CTO
• 4260-CTO
• 4270-CTO
• 4276-CTO, 22x, 23x, 24x, 2Ax, 2Ex, 2Nx, 2Qx, 2Sx, 2Tx, 2Xx, 2Yx, 2Zx
• 4281-CTO
• 4282-CTO, 23x, 24x, 28x, 2Yx, 2Zx, 34x, 3Jx, 3Kx, 3Lx, 3Mx, 3Nx, 3Tx, 3Vx, 3Wx, 3Xx, 3Yx
• 4284-CTO, 23x, 24x, 3Wx, 43x, 49x
16 System board assembly for W520 Q3, AMT, non-TPM, no RAID adapter
• 4249-CTO
• 4260-CTO
• 4270-CTO
• 4276-CTO, 2Jx, 36x
• 4281-CTO
• 4282-CTO
• 4284-CTO, 42x
16 System board assembly for W520 Q1, AMT, TPM, with RAID adapter
• 4249-CTO
• 4260-CTO
• 4270-CTO
• 4276-CTO
• 4281-CTO
• 4282-CTO, 2Mx
• 4284-CTO
16 System board assembly for W520 Q1, AMT, non-TPM, with RAID adapter
• 4249-CTO
• 4260-CTO
• 4270-CTO
• 4276-CTO
• 4281-CTO
• 4282-CTO
• 4284-CTO
16 System board assembly for W520 Q3, AMT, TPM, with RAID adapter
• 4249-CTO
• 4260-CTO
• 4270-CTO
• 4276-CTO
• 4281-CTO
• 4282-CTO, 2Cx, 2Lx, 33x, 3Zx, 42x
• 4284-CTO
16
System board assembly for W520 Q3, AMT, non-TPM, with RAID adapter
• 4249-CTO
• 4260-CTO
• 4270-CTO
• 4276-CTO
• 4281-CTO
• 4282-CTO
• 4284-CTO
140
ThinkPad T520, T520i, and W520 Hardware Maintenance Manual
FRU no.
CRU
ID
04W2029 N
04W2031 N
04W2032 N
04W2034 N
04W2033 N
04W2035 N