| No. | FRU (Overall) | FRU no. | CRU | 
|   |   |   |   | ID | 
|   |   |   |   | 
| 8 | 1-GB DDR3-1333 SDRAM SO-DIMM card | 55Y3715 | ** | 
|   | • | 4239-CTO, 2Zx |   |   | 
|   | • 4240-CTO, 2Xx, 3Gx, 3Zx |   |   | 
|   | • | 4241-CTO, 46x |   |   | 
|   | • | 4242-CTO, 4Zx, 52x |   |   | 
|   | • | 4243-CTO |   |   | 
|   | • | 4244-CTO |   |   | 
|   | • | 4246-CTO |   |   | 
|   | • | 4249-CTO |   |   | 
|   | • | 4260-CTO |   |   | 
|   | • | 4270-CTO |   |   | 
|   | • | 4276-CTO, 25x |   |   | 
|   | • | 4281-CTO |   |   | 
|   | • | 4282-CTO |   |   | 
|   | • | 4284-CTO |   |   | 
|   |   |   |   | 
| 8 | 2-GB DDR3-1333 SDRAM SO-DIMM card | 55Y3716 | ** | 
|   | • 4239-CTO, 22x, 23x, 25x, 27x, 28x, 2Zx, 32x, 33x, 35x, 36x, 48x, 49x, 4Bx |   |   | 
|   | • 4240-CTO, 2Bx, 2Ex, 2Fx, 2Gx, 2Hx, 2Jx, 2Kx, 2Lx, 2Mx, 2Nx, 2Px, 2Qx, 2Rx, 2Sx, 2Tx, |   |   | 
|   |   | 2Xx, 2Yx, 3Bx, 3Cx, 3Gx, 3Hx, 3Mx, 3Sx, 3Vx, 3Wx, 3Xx, 3Yx, 3Zx, 4Bx, 4Cx, 4Dx, 4Mx, |   |   | 
|   |   | 4Nx, 4Px, 4Qx |   |   | 
|   | • 4241-CTO, 26x, 42x, 43x, 44x, 45x, 46x, 47x, 48x |   |   | 
|   | • 4242-CTO, 23x, 27x, 28x, 29x, 2Bx, 2Cx, 2Dx, 2Hx, 2Px, 2Qx, 2Rx, 39x, 3Ax, 3Bx, 3Cx, |   |   | 
|   |   | 3Dx, 3Mx, 3Nx, 3Px, 44x, 45x, 46x, 4Mx, 4Qx, 4Rx, 4Sx, 4Xx, 4Zx, 52x, 56x, 57x |   |   | 
|   | • 4243-CTO, 27x, 28x, 29x, 3Sx, 3Xx, 3Yx, 4Yx |   |   | 
|   | • | 4244-CTO |   |   | 
|   | • | 4246-CTO |   |   | 
|   | • | 4249-CTO |   |   | 
|   | • | 4260-CTO |   |   | 
|   | • | 4270-CTO |   |   | 
|   | • 4276-CTO, 22x, 24x, 25x, 2Bx, 2Cx, 2Dx, 2Ex, 2Fx, 2Gx, 2Hx, 2Jx, 2Kx, 2Lx, 2Mx, 2Nx, |   |   | 
|   |   | 2Rx, 2Vx |   |   | 
|   | • | 4281-CTO |   |   | 
|   | • 4282-CTO, 25x, 2Vx, 2Wx, 3Cx, 3Hx, 3Ux |   |   | 
|   | • 4284-CTO, 25x, 3Tx, 3Ux, 3Vx, 3Wx, 3Xx, 3Yx, 3Zx, 42x, 43x, 45x |   |   | 
|   |   |   |   |   |