Dual Xeon-D

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up-n-atom

Neko
May 30, 2019
26
39
13
Canada
www.eleventwentytwo.com
From @rachet06 dump "A@4MA1" EDIT: "AK4MA1"

1A 93 FD 26 25 BA 21 4D 86 E0 13 74 7D 07 D8 9A

^ XOR

5B 93 B6 26 11 BA 6C 4D C7 E0 22 74 7D 07 D8 9A

=

41 00 4B 00 34 00 4D 00 41 00 31 00 00 00 00 00

PS. I don't own the the MB I just thought this was a fun challenge but I would love to tinker with 1 ;)
 
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tp1

Member
Feb 5, 2016
32
11
8
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@up-n-atom Thanks for this, however it doesnt work on my board. Maybe different on my board. How does one look for the string so I can compare if I have the same?

thanks!


From @rachet06 dump "A@4MA1"

1A 93 FD 26 25 BA 21 4D 86 E0 13 74 7D 07 D8 9A

^ XOR

5B 93 B6 26 11 BA 6C 4D C7 E0 22 74 7D 07 D8 9A

=

41 00 40 00 34 00 4D 00 41 00 31 00 00 00 00 00

PS. I don't own the the MB I just thought this was a fun challenge but I would love to tinker with 1 ;)
 

tp1

Member
Feb 5, 2016
32
11
8
43
I am wondering if the bios versions are different. WHen I use AMIBCP and check the version it says Major =1 and minor =03
There was another dump (not @rachet06 ) which shows Major =1 and minor =2 and the one you worked on shows 00.18

And would this work on a AMI Flash dump or do I need a USB flash programmer to get the flash dump?
thanks
 

rachet06

New Member
May 27, 2020
15
12
3
Miami, FL
From @rachet06 dump "A@4MA1"

1A 93 FD 26 25 BA 21 4D 86 E0 13 74 7D 07 D8 9A

^ XOR

5B 93 B6 26 11 BA 6C 4D C7 E0 22 74 7D 07 D8 9A

=

41 00 40 00 34 00 4D 00 41 00 31 00 00 00 00 00

PS. I don't own the the MB I just thought this was a fun challenge but I would love to tinker with 1 ;)
@up-n-atom Thanks for this, however it doesnt work on my board. Maybe different on my board. How does one look for the string so I can compare if I have the same?

thanks!
It's also not working on my board currently
 

up-n-atom

Neko
May 30, 2019
26
39
13
Canada
www.eleventwentytwo.com
And would this work on a AMI Flash dump or do I need a USB flash programmer to get the flash dump?
thanks
@zjr8 dump does not contain the said encoded text. So I'm uncertain if they just missed checking options when dumping or not.

Thanks for the puzzle solving! unfortunately it also did not work for me. I do not doubt that string is "something" but it is not the droid we're looking for at this moment. I also tried the character map here which translates one of the characters as a <PG><DWN> so I think you used the right map.
It's plain text so just Ascii Table - ASCII character codes and html, octal, hex and decimal chart conversion Just to make certain it's without the quotes and that's a one (1) at the end.
 
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fake-name

Active Member
Feb 28, 2017
180
144
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The thing that really interests me is the two epoxy blobsright above the Artix FPGA.

One of them seems to be labeled "BU8_<something>", the other either isn't labelled or the epoxy is covering the label.

I can't think of any reason there'd be a directly bonded IC on a motherboard like this. I wonder if it actually covers a normal IC and is a security thing. That would also maybe indicate the FPGA is doing some sort of operation which requires protected key material (encryption?).

Looking at the traces, I don't see any clear connections between the FPGA and anything else. Any chance we can get a pictures of the back of the board too?



------

The mezzanine connectors are weird too. Just following a few of their pins makes me think they're pinned out for the standard OCP 2.0 mezzanine interface, but the headers are *backwards*. The connectors would be pointed towards the CPUs if you install mezz card that fits the OCP standard.
 
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andreathing

New Member
May 5, 2020
23
11
3
From @rachet06 dump "A@4MA1" EDIT: "AK4MA1"

1A 93 FD 26 25 BA 21 4D 86 E0 13 74 7D 07 D8 9A

^ XOR

5B 93 B6 26 11 BA 6C 4D C7 E0 22 74 7D 07 D8 9A

=

41 00 4B 00 34 00 4D 00 41 00 31 00 00 00 00 00

PS. I don't own the the MB I just thought this was a fun challenge but I would love to tinker with 1 ;)
Great job! I was waiting for a full chip dump, but you beat me at this :)

EDIT: Now it's time to figure out how to remove the password :)

EDIT2: I think password could be removed by simply changing it, now that we can access the bios. Or we can flash the bios back with the password section zeroed out and see if it does the trick.
 
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