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Table 42. Parts list—Overall (continued)
No.
FRU (Overall)
FRU no.
CRU
ID
16
System board assembly for T520 and T520i, integrated, non-AMT, TPM
• 4239-CTO, 27x, 28x, 35x, 3Nx, 47x, 48x, 49x, 4Bx, 4Cx
• 4240-CTO, 2Bx, 2Cx, 2Ex, 2Lx, 2Mx, 2Sx, 2Tx, 2Xx, 3Rx, 3Sx, 3Tx, 3Ux, 3Vx, 3Wx, 4Bx,
4Dx, 4Kx, 4Mx, 4Nx
• 4241-CTO, 42x, 47x, 48x
• 4242-CTO, 2Dx, 3Ax, 3Bx, 3Cx, 3Ex, 3Fx, 47x, 48x, 4Qx
• 4243-CTO, 3Sx, 3Xx, 3Yx
• 4244-CTO
• 4246-CTO
04W2024 N
16
System board assembly for T520 and T520i, optimus, non-AMT, TPM
• 4239-CTO, 36x, 37x, 38x, 39x, 3Ax, 44x, 4Ax
• 4240-CTO, 2Qx, 2Rx, 2Ux, 2Vx, 2Yx, 3Xx, 3Yx, 4Cx, 4Fx
• 4241-CTO, 43x, 44x, 45x, 46x
• 4242-CTO, 3Dx, 3Gx, 3Jx, 4Xx, 4Yx, 55x
• 4243-CTO
• 4244-CTO
• 4246-CTO
04W2025 N
16
System board assembly for T520 and T520i, integrated, non-AMT, non-TPM
• 4239-CTO, 2Zx
• 4240-CTO, 3Hx, 3Jx, 3Lx, 3Zx
• 4241-CTO
• 4242-CTO
• 4243-CTO
• 4244-CTO
• 4246-CTO
04W2026 N
16
System board assembly for T520 and T520i, optimus, non-AMT, non-TPM
• 4239-CTO, 32x
• 4240-CTO, 3Ex, 3Fx, 3Gx, 3Kx
• 4241-CTO
• 4242-CTO
• 4243-CTO
• 4244-CTO
• 4246-CTO
04W2027 N
16
System board assembly for W520 Q1, AMT, TPM, no RAID adapter
• 4249-CTO
• 4260-CTO
• 4270-CTO, 26x
• 4276-CTO, 25x, 27x, 28x, 29x, 2Bx, 2Cx, 2Dx, 2Kx, 2Lx, 2Mx, 2Px, 2Rx, 2Vx, 2Wx, 37x,
38x, 39x
• 4281-CTO
• 4282-CTO, 25x, 26x, 27x, 29x, 2Ax, 2Bx, 2Dx, 2Ex, 2Fx, 2Gx, 2Hx, 2Jx, 2Kx, 2Nx, 2Px,
2Qx, 2Rx, 2Sx, 2Tx, 2Ux, 2Vx, 2Wx, 2Xx, 32x, 35x, 36x, 37x, 38x, 3Bx, 3Cx, 3Dx, 3Ex,
3Fx, 3Gx, 3Hx, 3Px, 3Rx, 3Sx, 3Ux, 45x, 4Bx, 4Cx
• 4284-CTO, 25x, 26x, 3Tx, 3Ux, 3Vx, 45x, 46x, 47x, 48x, 4Ax, 4Bx, 4Cx, 4Dx
04W2028 N
16
System board assembly for W520 Q1, AMT, non-TPM, no RAID adapter
• 4249-CTO
• 4260-CTO
• 4270-CTO
• 4276-CTO, 2Fx, 2Gx, 2Hx
• 4281-CTO
• 4282-CTO, 3Qx
• 4284-CTO, 3Xx, 3Yx, 3Zx
04W2030 N
Chapter 11. Parts list 137