No. | FRU (Overall) | FRU no. | CRU |
| | | | ID |
| | | |
16 | System board assembly for T520 and T520i, integrated, non-AMT, TPM | 04W2024 | N |
| • 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 | | |
| | | |
16 | System board assembly for T520 and T520i, optimus, non-AMT, TPM | 04W2025 | N |
| • 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 | | |
| | | |
16 | System board assembly for T520 and T520i, integrated, non-AMT, non-TPM | 04W2026 | N |
| • | 4239-CTO, 2Zx | | |
| • 4240-CTO, 3Hx, 3Jx, 3Lx, 3Zx | | |
| • | 4241-CTO | | |
| • | 4242-CTO | | |
| • | 4243-CTO | | |
| • | 4244-CTO | | |
| • | 4246-CTO | | |
| | | |
16 | System board assembly for T520 and T520i, optimus, non-AMT, non-TPM | 04W2027 | N |
| • | 4239-CTO, 32x | | |
| • 4240-CTO, 3Ex, 3Fx, 3Gx, 3Kx | | |
| • | 4241-CTO | | |
| • | 4242-CTO | | |
| • | 4243-CTO | | |
| • | 4244-CTO | | |
| • | 4246-CTO | | |
| | | |
16 | System board assembly for W520 Q1, AMT, TPM, no RAID adapter | 04W2028 | N |
| • | 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 | | |
| | | |
16 | System board assembly for W520 Q1, AMT, non-TPM, no RAID adapter | 04W2030 | N |
| • | 4249-CTO | | |
| • | 4260-CTO | | |
| • | 4270-CTO | | |
| • 4276-CTO, 2Fx, 2Gx, 2Hx | | |
| • | 4281-CTO | | |
| • | 4282-CTO, 3Qx | | |
| • 4284-CTO, 3Xx, 3Yx, 3Zx | | |
| | | | |
