Lenovo ThinkPad T420 2620 Hardware Maintenance Manual page 144

Table 39. Parts list—Overall (continued)
No. FRU (Overall)
6 4-GB DDR3-1333 SDRAM SO-DIMM (PC3-10600) card
• 4177–CTO, 22x, 23x, 24x, 25x, 26x, 27x, 28x, 29x, 2Ax, 2Bx, 2Cx, 2Dx, 2Ex, 2Fx,
2Gx, 2Hx, 2Jx, 2Kx, 2Lx, 2Mx, 2Nx, 2Px, Q2x, Q3x, Q4x, Q5x, Q7x, Q8x, QAx,
QBx, QCx, QFx, QEx
• 4178–CTO, 52x, 53x, 54x, 55x, 56x, 57x, 58x, 59x, 5Ax, 5Bx, 5Cx, 5Dx, 5Ex, 5Fx,
5Gx, 5Hx, 5Jx, 5Kx, 5Lx, 5Mx, 5Nx, 5Px, 5Qx, 5Rx, 5Sx, 5Tx, 5Ux, 5Vx, 5Wx,
5Xx, 5Yx, 5Zx, 92x, 93x, 94x, 95x, 96x, 97x, 98x, 99x, 9Ax, 9Bx, 9Cx, 9Dx, 9Ex,
9Fx, 9Gx, 9Hx, 9Jx, 9Kx, 9Lx, 9Mx, 9Nx, 9Px, 9Qx, 9Rx, 9Sx, 9Tx, 9Ux, 9Vx,
9Wx, 9Xx, 9Yx
• 4179–CTO, G2x, G3x, G4x, G5x, G6x, G7x, G8x, G9x, GBx
• 4180–CTO, 62x, 63x, 64x, 65x, K2x, K3x, K4x, K5x, K6x, K7x, K8x, K9x, KAx,
KBx, KCx, KDx, KEx, KFx, KGx, KHx, KJx, KKx, KLx, KMx, KNx, KPx, KQx, KRx,
KSx, KTx, KUx, KVx, KWx, KXx, KYx, KZx, L2x, L3x, L4x, L5x, L6x, L7x, L8x,
L9x, LAx, LBx, LCx, LDx, LEx, LFx, LGx, LHx, LJx, LKx, LLx, LMx, LNx, LPx, LQx,
LRx, LSx, LTx, LUx, LVx, LWx, LXx, LYx, LZx, M2x, M3x, M4x, M5x, M6x, M7x,
M8x, M9x, MAx, MBx, MCx, MDx, MEx, MFx, MGx, MHx, MJx
• 4236–CTO, 62x, 63x, 64x, 65x, N2x, N3x, N4x, N5x, N6x, N7x, N8x, N9x, NAx,
NBx, NCx, NDx, NEx, NFx, NGx, NHx, NKx, NLx, NMx, NNx, NPx, NQx, NRx,
MBx
7
I/O sub card (USB only)
• 4177–CTO, 22x, 23x, 24x, 25x, 26x, 27x, 28x, 29x, 2Ax, 2Bx, 2Cx, 2Dx, 2Ex, 2Jx,
Q2x, Q3x, Q4x, Q5x, Q7x, QAx, QCx, QDx, QFx
• 4178–CTO, 52x, 53x, 54x, 55x, 56x, 57x, 58x, 59x, 5Ax, 5Bx, 5Cx, 5Dx, 5Ex, 5Fx,
5Gx, 5Hx, 5Jx, 5Kx, 5Lx, 5Mx, 5Nx, 5Px, 5Qx, 5Rx, 5Sx, 5Tx, 5Ux, 5Vx, 5Wx,
5Xx, 5Yx, 5Zx, 92x, 93x, 94x, 95x, 96x, 97x, 98x, 99x, 9Ax, 9Bx, 9Cx, 9Dx, 9Ex,
9Px, 9Qx, 9Rx
• 4179–CTO, G2x, G3x, G4x, G5x, G6x, G7x, G8x, G9x
• 4180–CTO, K2x, K3x, K4x, K5x, K6x, K7x, K8x, K9x, KAx, KBx, KCx, KDx, KEx,
KFx, KGx, KHx, KJx, KKx, KLx, KMx, KNx, KPx, KQx, KRx, KSx, KTx, KUx, KVx,
KWx, KXx, KYx, KZx, L2x, L3x, L4x, L5x, L6x, L7x, L8x, L9x, LAx, LBx, LCx, LDx,
LEx, LFx, LGx, LHx, LJx, LKx, LLx, LMx, LNx, LPx, LQx, LRx, LSx, LTx, LUx, LVx,
LWx, LXx, LYx, LZx, M2x, M3x, M4x, M5x, M6x, M7x, M8x, M9x, MAx, MBx,
MCx, MDx, MEx, MFx, MGx
• 4236–CTO, N2x, N3x, N4x, N5x, N6x, N7x, N8x, N9x, NAx, NBx, NCx, NDx, NEx,
NFx, NGx, NHx, NKx, NLx, NMx, NNx, NPx, NQx, NRx, MBx
7
I/O sub card (1394/USB)
• 4177–CTO, 2Fx, 2Gx, 2Hx, 2Kx, 2Lx, 2Mx, 2Nx, 2Px, Q8x, QBx, QEx
• 4178–CTO, 9Fx, 9Gx, 9Hx, 9Jx, 9Kx, 9Lx, 9Mx, 9Nx, 9Sx, 9Tx, 9Ux, 9Vx, 9Wx,
9Xx, 9Yx
• 4179–CTO, GBx
• 4180–CTO, 62x, 63x, 64x, 65x, MHx, MJx
• 4236–CTO, 62x, 63x, 64x, 65x
8 Battery pack, Li-ion (4-cell) 55
• 4177–CTO, 2Dx, QDx, QEx
• 4178–CTO, 9Fx, 9Gx, 9Hx, 9Jx, 9Kx, 9Lx, 9Mx, 9Nx
• 4179–CTO
• 4180–CTO
• 4236–CTO
8
Battery pack, Li-ion (4-cell) 55
• 4177–CTO, 2Dx, QDx, QEx
• 4178–CTO, 9Fx, 9Gx, 9Hx, 9Jx, 9Kx, 9Lx, 9Mx, 9Nx
• 4179–CTO
• 4180–CTO
• 4236–CTO
138
ThinkPad T420 and T420i Hardware Maintenance Manual
FRU no.
CRU ID
55Y3717 **
04W1630 N
04W1631 N
42T4883 *
42T4885 *