Here are the revisions and corresponding production dates I'm aware of for the BladeCenter H 2880 and 2980 power modules.
If you've got one of these supplies with a revision not listed below, or a known revision that extends the date range, it'd be great if you could post an image of the label in this thread.
I have all of the revisions marked * on hand; if anyone in the Seattle area has a revision I don't I'd love to make efficiency measurements and take the cover off for a few photos.
Astec AA23920L (2880W)
Revision Date Code Range (YYWW)
------------------------------------------
7 0610
8* 0617 -> 0640
9 0716 -> 0720
10* 0737 -> 0833
11* 0912 -> 0928
12* 0945 -> 1012
13* 1012 -> 1022
14 1033
15* 1036 -> 1042
Delta DPS-2980AB A (2980W)
Revision Date Code Range (WWYY)
------------------------------------------
S4F 2710 -> 3110
S5F Not Observed
S6F 4410
S7F 4710 -> 4910
S8F* 0611 -> 1211
S9F* 4111 -> 3313
S10F 3714
The revision and date code can be located as indicated on the labels:
