| 520-3418-08 | ALOM 1.4 2 | Boot PROMs |
| 520-3522-02 | ALOM 1.5.1 | Boot PROMs |
| 520-3605-02 | EPIC FW (WO_40351) (Motherboard Overtemp LED CR 6662423) 1 | Boot PROMs |
| 520-3614-02 | ALOM 1.5.4.B08 | Boot PROMs |
| 520-3614-03 | ALOM 1.6.7 (WO_37952) | Boot PROMs |
| 520-3614-04 | ALOM 1.5.4.B08 (WO_33314) | Boot PROMs |
| 520-3614-05 | ALOM 1.6.7 (WO_39223) | Boot PROMs |
| 520-3615-02 | OBP Binary Code 4.18 Version 5 | Boot PROMs |
| 520-3615-03 | OBP Binary Code 4.18 Version 10 (WO_33314) (1st OBP for 375-3471/375-3472) | Boot PROMs |
| 520-3615-04 | OBP Binary Code 4.22 Version 19 (WO_34329) | Boot PROMs |
| 520-3615-05 | OBP 4.22 Version 33 (Patch 121683-06 ) (WO_39223) | Boot PROMs |
| 520-3709-02 | ALOM 1.6.1_b3 (WO_33825) | Boot PROMs |
| 520-3709-03 | ALOM 1.6.4_b2 (WO_35550) | Boot PROMs |
| 520-3709-04 | ALOM 1.6.5 (WO_37333) | Boot PROMs |
| 520-3709-05 | ALOM 1.6.6 (WO_37908) | Boot PROMs |
| 520-3758-01 | System Flash unknown (WO_33822) | Boot PROMs |
| 520-3758-02 | System Flash 6.3.7 (Patch 124753-02 ) (WO_36845) 1 | Boot PROMs |
| 520-3758-03 | System Flash 6.5.11 (Patch 127578-03 ) (WO_38475) | Boot PROMs |
| 520-3758-04 | System Flash 6.6.4 (ALOM 1.6.4 + OBP 4.28.9) (WO_39518) | Boot PROMs |
| 520-3786-01 | OBP 4.22 Version 17 (Patch 121691-01) (WO_34188) | Boot PROMs |
| 520-3786-02 | OBP 4.22 Version 19 (Patch 121691-02) (WO_34786) | Boot PROMs |
| 520-3786-04 | OBP 4.25 Version 10 (Patch 124415-01) (WO_37953) | Boot PROMs |
| 520-3787-01 | ALOM 1.6.1 Build 2 | Boot PROMs |
| 520-3787-02 | ALOM 1.6.2 Build 3 (WO_34818) | Boot PROMs |
| 520-3787-03 | ALOM 1.6.3 (WO_35420) | Boot PROMs |
| 520-3797-01 | OBP 4.22 Version 18 (Patch 121692-01) (WO_33825) | Boot PROMs |
| 520-3797-02 | OBP 4.22 Version 22 (WO_35282) | Boot PROMs |
| 520-3797-03 | OBP 4.22 Version 33 (WO_37333) | Boot PROMs |
| 520-3797-04 | OBP 4.25 Version 10 (Patch 124414-01) (WO_37908) | Boot PROMs |
| 520-3799-02 | 501-7606-03 501-7606-04 | Firmware |
| 520-3799-03 | 501-7606-03 501-7606-04 | Firmware |
| 520-3802 | FAB 270-6979 X4100 M2/X4200 M2 Flash 525-2360 L | |
| 520-3802-06 | SP 1.1.10 with BIOS 0ABLG008 (Software 1.0) 2 (WO_35000) | Boot PROMs |
| 520-3802-07 | SP 1.1.10 with BIOS 0ABLG010 (Software 1.1) 2 (WO_37086) | Boot PROMs |
| 520-3802-11 | SP 2.0.5.1 with BIOS 0ABLG013 (SW 1.2) 2 (WO_38216) | Boot PROMs |
| 520-3802-15 | SP 2.0.5.2 with BIOS 0ABLG015 (SW 1.3 2 (WO_39658) | Boot PROMs |
| 520-3802-19 | SP 2.0.5.3 with BIOS 0ABOR005 (SW 1.5) 2 3 (WO_40134) | Boot PROMs |
| 520-3802-20 | SP 2.0.5.3 R43371 with BIOS 0ABRM001 (SW 1.6) 2 (WO_41259) | Boot PROMs |
| 520-3993-01 | ILOM 1.x (WO_38042) | Boot PROMs |
| 520-3993-02 | ILOM 7.0.9a (WO_38443) (Patch 127581-01 ) | Boot PROMs |
| 520-3993-03 | ILOM 7.1.2a (WO_39015) | Boot PROMs |
| 520-3993-04 | ILOM 7.1.4d (WO_39742) | Boot PROMs |
| 520-3993-05 | ILOM 7.1.7h (Waiver WO_40832 for 6-Core 540-7755 only) | Boot PROMs |
| 520-3993-06 | ILOM 7.1.8b (WO_40573) | Boot PROMs |
| 520-3995-01 | System Flash V-1 | Boot PROMs |
| 520-3995-02 | System Flash 7.1.4.a (WO_39637) | Boot PROMs |
| 520-3995-03 | System Flash 7.1.6.g (WO_40127) | Boot PROMs |
| 520-3995-04 | System Flash 7.1.7.f 1 (waiver WO_40888) | Boot PROMs |
| 520-3995-05 | System Flash 7.1.8.c 2 3 (WO_40979) (WO_41292) | Boot PROMs |