Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
dec alpha 21264A processor revisions?
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index Gentoo on Alternative Architectures
View previous topic :: View next topic  
Author Message
Lupin_the_3rd
Apprentice
Apprentice


Joined: 03 Apr 2005
Posts: 168

PostPosted: Wed Jul 04, 2012 8:39 pm    Post subject: dec alpha 21264A processor revisions? Reply with quote

I've got two Compaq XP1000's here, both with Gentoo on them. A `sho dev` on each of them has two different things for the CPU. Both are 667 Mhz speed and both have 4 MB of cache.

XP1000 #1: 21264A-9

XP1000 #2: 21264A-8

I have the Compaq 21264A hardware reference manual even, and I cannot find anywhere what the -8 and -9 suffix means. I assume different revision levels of the CPU??

Any ideas?
_________________
Compaq XP1000 Alpha EV67 667Mhz w/ 2GB ECC
32bit PCI: ATI Radeon 9100 (DRI works!)
32bit PCI: Generic Firewire 400 card
64bit PCI: BCM5703 Gig-E (Compaq NC7771)
64bit PCI: Sil3124 SATA w/ mdadm RAID1 (pair of WD VelociRaptors)
Back to top
View user's profile Send private message
mattst88
Developer
Developer


Joined: 28 Oct 2004
Posts: 363

PostPosted: Thu Jul 05, 2012 9:12 pm    Post subject: Reply with quote

Yeah, probably different hardware revision.
_________________
My 1U Dual 833 MHz Alphaserver DS20L
The AlphaLinux.org Wiki
Back to top
View user's profile Send private message
Lupin_the_3rd
Apprentice
Apprentice


Joined: 03 Apr 2005
Posts: 168

PostPosted: Fri Jul 06, 2012 2:39 am    Post subject: Reply with quote

mattst88 wrote:
Yeah, probably different hardware revision.

Do you know of any document that explains the difference? Does the -9 fix some bug or errata of the -8 chip? Is the -9 "better" in some way? I'd love to know what is the difference between the two.

FWIW the system board of the -8 chip has some wires that have been soldered on between some components, like a factory fix for some defect. The -9 system board does not have these add-on wire traces. All of the identifying numbers and markings between the two boards are identical, the serial numbers are the only other unique thing.
_________________
Compaq XP1000 Alpha EV67 667Mhz w/ 2GB ECC
32bit PCI: ATI Radeon 9100 (DRI works!)
32bit PCI: Generic Firewire 400 card
64bit PCI: BCM5703 Gig-E (Compaq NC7771)
64bit PCI: Sil3124 SATA w/ mdadm RAID1 (pair of WD VelociRaptors)
Back to top
View user's profile Send private message
mattst88
Developer
Developer


Joined: 28 Oct 2004
Posts: 363

PostPosted: Fri Jul 06, 2012 2:10 pm    Post subject: Reply with quote

Lupin_the_3rd wrote:
mattst88 wrote:
Yeah, probably different hardware revision.

Do you know of any document that explains the difference? Does the -9 fix some bug or errata of the -8 chip? Is the -9 "better" in some way? I'd love to know what is the difference between the two.

FWIW the system board of the -8 chip has some wires that have been soldered on between some components, like a factory fix for some defect. The -9 system board does not have these add-on wire traces. All of the identifying numbers and markings between the two boards are identical, the serial numbers are the only other unique thing.


No, I don't. I'd be surprised if this information was publicly available.

My guess is that -9 is a newer revision and fixes something in the -8 revision, like the need for the soldered-on wires you found on the -8 CPU.
_________________
My 1U Dual 833 MHz Alphaserver DS20L
The AlphaLinux.org Wiki
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index Gentoo on Alternative Architectures All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum