#decalpha — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #decalpha, aggregated by home.social.
-
-
-
-
-
-
J'ai une paire de serveurs #decalpha 3000 avec les alimentation HS.
J'ai les ai testées au préalable déconnectées de l'ordinateur et branchées sur des résistances bobinées (~40W) , une ne démarrait pas et l'autre avait l'air OK. Une fois cette dernière connectée sur l'ordinateur plus de tension ! Après démontage c'est une diode de redressement qui est en court-circuit (et qui ne l'était donc pas lors du test initial)
J'ai commandé les composants pour réparer ça et j'ai aussi trouvé sur eBay une alim censée fonctionner, les deux devraient traverser l'Atlantique prochainement, à suivre !
#retrocomputing -
J'ai une paire de serveurs #decalpha 3000 avec les alimentation HS.
J'ai les ai testées au préalable déconnectées de l'ordinateur et branchées sur des résistances bobinées (~40W) , une ne démarrait pas et l'autre avait l'air OK. Une fois cette dernière connectée sur l'ordinateur plus de tension ! Après démontage c'est une diode de redressement qui est en court-circuit (et qui ne l'était donc pas lors du test initial)
J'ai commandé les composants pour réparer ça et j'ai aussi trouvé sur eBay une alim censée fonctionner, les deux devraient traverser l'Atlantique prochainement, à suivre !
#retrocomputing -
J'ai une paire de serveurs #decalpha 3000 avec les alimentation HS.
J'ai les ai testées au préalable déconnectées de l'ordinateur et branchées sur des résistances bobinées (~40W) , une ne démarrait pas et l'autre avait l'air OK. Une fois cette dernière connectée sur l'ordinateur plus de tension ! Après démontage c'est une diode de redressement qui est en court-circuit (et qui ne l'était donc pas lors du test initial)
J'ai commandé les composants pour réparer ça et j'ai aussi trouvé sur eBay une alim censée fonctionner, les deux devraient traverser l'Atlantique prochainement, à suivre !
#retrocomputing -
J'ai une paire de serveurs #decalpha 3000 avec les alimentation HS.
J'ai les ai testées au préalable déconnectées de l'ordinateur et branchées sur des résistances bobinées (~40W) , une ne démarrait pas et l'autre avait l'air OK. Une fois cette dernière connectée sur l'ordinateur plus de tension ! Après démontage c'est une diode de redressement qui est en court-circuit (et qui ne l'était donc pas lors du test initial)
J'ai commandé les composants pour réparer ça et j'ai aussi trouvé sur eBay une alim censée fonctionner, les deux devraient traverser l'Atlantique prochainement, à suivre !
#retrocomputing -
J'ai une paire de serveurs #decalpha 3000 avec les alimentation HS.
J'ai les ai testées au préalable déconnectées de l'ordinateur et branchées sur des résistances bobinées (~40W) , une ne démarrait pas et l'autre avait l'air OK. Une fois cette dernière connectée sur l'ordinateur plus de tension ! Après démontage c'est une diode de redressement qui est en court-circuit (et qui ne l'était donc pas lors du test initial)
J'ai commandé les composants pour réparer ça et j'ai aussi trouvé sur eBay une alim censée fonctionner, les deux devraient traverser l'Atlantique prochainement, à suivre !
#retrocomputing -
The Weird Way A DEC Alpha Boots - We’re used to there being an array of high-end microprocessor architectures, and i... - https://hackaday.com/2025/04/03/the-weird-way-a-dec-alpha-boots/ #retrocomputing #alphastation #workstation #decalpha
-
The Weird Way A DEC Alpha Boots - We’re used to there being an array of high-end microprocessor architectures, and i... - https://hackaday.com/2025/04/03/the-weird-way-a-dec-alpha-boots/ #retrocomputing #alphastation #workstation #decalpha
-
The Weird Way A DEC Alpha Boots - We’re used to there being an array of high-end microprocessor architectures, and i... - https://hackaday.com/2025/04/03/the-weird-way-a-dec-alpha-boots/ #retrocomputing #alphastation #workstation #decalpha
-
The Weird Way A DEC Alpha Boots - We’re used to there being an array of high-end microprocessor architectures, and i... - https://hackaday.com/2025/04/03/the-weird-way-a-dec-alpha-boots/ #retrocomputing #alphastation #workstation #decalpha
-
The Weird Way A DEC Alpha Boots - We’re used to there being an array of high-end microprocessor architectures, and i... - https://hackaday.com/2025/04/03/the-weird-way-a-dec-alpha-boots/ #retrocomputing #alphastation #workstation #decalpha
-
DEC (Alpha[Dream) Team]
-
DEC (Alpha[Dream) Team]
-
DEC (Alpha[Dream) Team]
-
DEC (Alpha[Dream) Team]
-
@win8linux I think we had that (whether we wanted it or not) on OpenVMS. At the time I thought it bizarre that a server in the datacentre should run a GUI all the time but given that I ran a GUI at home on an 8 MHz 68k, the AlphaServer could spare the cycles and it was handy for multiple xterm. #vms #decalpha
-
@win8linux I think we had that (whether we wanted it or not) on OpenVMS. At the time I thought it bizarre that a server in the datacentre should run a GUI all the time but given that I ran a GUI at home on an 8 MHz 68k, the AlphaServer could spare the cycles and it was handy for multiple xterm. #vms #decalpha
-
@win8linux I think we had that (whether we wanted it or not) on OpenVMS. At the time I thought it bizarre that a server in the datacentre should run a GUI all the time but given that I ran a GUI at home on an 8 MHz 68k, the AlphaServer could spare the cycles and it was handy for multiple xterm. #vms #decalpha
-
@win8linux I think we had that (whether we wanted it or not) on OpenVMS. At the time I thought it bizarre that a server in the datacentre should run a GUI all the time but given that I ran a GUI at home on an 8 MHz 68k, the AlphaServer could spare the cycles and it was handy for multiple xterm. #vms #decalpha
-
@win8linux I think we had that (whether we wanted it or not) on OpenVMS. At the time I thought it bizarre that a server in the datacentre should run a GUI all the time but given that I ran a GUI at home on an 8 MHz 68k, the AlphaServer could spare the cycles and it was handy for multiple xterm. #vms #decalpha
-
A DEC Alpha programmer that hasn't used the #Internet for years getting online and seeing stuff about "alpha programmers" and getting confused because it has nothing to do with the DEC Alpha and it's just a bunch of insecure, misogynistic guys trying to make themselves look better than other people.
-
A DEC Alpha programmer that hasn't used the #Internet for years getting online and seeing stuff about "alpha programmers" and getting confused because it has nothing to do with the DEC Alpha and it's just a bunch of insecure, misogynistic guys trying to make themselves look better than other people.
-
A DEC Alpha programmer that hasn't used the #Internet for years getting online and seeing stuff about "alpha programmers" and getting confused because it has nothing to do with the DEC Alpha and it's just a bunch of insecure, misogynistic guys trying to make themselves look better than other people.
-
A DEC Alpha programmer that hasn't used the #Internet for years getting online and seeing stuff about "alpha programmers" and getting confused because it has nothing to do with the DEC Alpha and it's just a bunch of insecure, misogynistic guys trying to make themselves look better than other people.
-
CW: on Windows memory allocation
This blog entry by Raymond Chen, "Why doesn’t Windows use the 64-bit virtual address space below 0x00000000`7ffe0000?"¹ is absolutely brilliant.
What I thought was a trivial design decision of some kind turns out to have deep roots in 32-bit Windows (the separation between user and kernel) and, this is where it becomes surreal, the DEC Alpha processor :flan_awe:!
I quote Raymond Chen directly:
"On the Alpha AXP, most 32-bit constants can be generated in at most two instructions. But there’s a range of values that requires three instructions: 0x7fff8000 to 0x7fffffff. "
As the person who ran the first three DEC Alpha systems in the UK outside DEC "REO" (Reading Office) I have a bit of history with these processors and yet I had never ever heard of this.
Don't ignore the links embedded in the page because they are worth reading too.
(also, if you do not follow Raymond Chen's blog via RSS you should - his series on processors and the history of Windows design decisions is fabulous).
#Windows #MemoryAllocation #DECAlpha #WindowsOnAlpha
__
¹ https://devblogs.microsoft.com/oldnewthing/20221216-00/?p=107598 -
CW: on Windows memory allocation
This blog entry by Raymond Chen, "Why doesn’t Windows use the 64-bit virtual address space below 0x00000000`7ffe0000?"¹ is absolutely brilliant.
What I thought was a trivial design decision of some kind turns out to have deep roots in 32-bit Windows (the separation between user and kernel) and, this is where it becomes surreal, the DEC Alpha processor :flan_awe:!
I quote Raymond Chen directly:
"On the Alpha AXP, most 32-bit constants can be generated in at most two instructions. But there’s a range of values that requires three instructions: 0x7fff8000 to 0x7fffffff. "
As the person who ran the first three DEC Alpha systems in the UK outside DEC "REO" (Reading Office) I have a bit of history with these processors and yet I had never ever heard of this.
Don't ignore the links embedded in the page because they are worth reading too.
(also, if you do not follow Raymond Chen's blog via RSS you should - his series on processors and the history of Windows design decisions is fabulous).
#Windows #MemoryAllocation #DECAlpha #WindowsOnAlpha
__
¹ https://devblogs.microsoft.com/oldnewthing/20221216-00/?p=107598 -
CW: on Windows memory allocation
This blog entry by Raymond Chen, "Why doesn’t Windows use the 64-bit virtual address space below 0x00000000`7ffe0000?"¹ is absolutely brilliant.
What I thought was a trivial design decision of some kind turns out to have deep roots in 32-bit Windows (the separation between user and kernel) and, this is where it becomes surreal, the DEC Alpha processor :flan_awe:!
I quote Raymond Chen directly:
"On the Alpha AXP, most 32-bit constants can be generated in at most two instructions. But there’s a range of values that requires three instructions: 0x7fff8000 to 0x7fffffff. "
As the person who ran the first three DEC Alpha systems in the UK outside DEC "REO" (Reading Office) I have a bit of history with these processors and yet I had never ever heard of this.
Don't ignore the links embedded in the page because they are worth reading too.
(also, if you do not follow Raymond Chen's blog via RSS you should - his series on processors and the history of Windows design decisions is fabulous).
#Windows #MemoryAllocation #DECAlpha #WindowsOnAlpha
__
¹ https://devblogs.microsoft.com/oldnewthing/20221216-00/?p=107598 -
CW: on Windows memory allocation
This blog entry by Raymond Chen, "Why doesn’t Windows use the 64-bit virtual address space below 0x00000000`7ffe0000?"¹ is absolutely brilliant.
What I thought was a trivial design decision of some kind turns out to have deep roots in 32-bit Windows (the separation between user and kernel) and, this is where it becomes surreal, the DEC Alpha processor :flan_awe:!
I quote Raymond Chen directly:
"On the Alpha AXP, most 32-bit constants can be generated in at most two instructions. But there’s a range of values that requires three instructions: 0x7fff8000 to 0x7fffffff. "
As the person who ran the first three DEC Alpha systems in the UK outside DEC "REO" (Reading Office) I have a bit of history with these processors and yet I had never ever heard of this.
Don't ignore the links embedded in the page because they are worth reading too.
(also, if you do not follow Raymond Chen's blog via RSS you should - his series on processors and the history of Windows design decisions is fabulous).
#Windows #MemoryAllocation #DECAlpha #WindowsOnAlpha
__
¹ https://devblogs.microsoft.com/oldnewthing/20221216-00/?p=107598 -
CW: on Windows memory allocation
This blog entry by Raymond Chen, "Why doesn’t Windows use the 64-bit virtual address space below 0x00000000`7ffe0000?"¹ is absolutely brilliant.
What I thought was a trivial design decision of some kind turns out to have deep roots in 32-bit Windows (the separation between user and kernel) and, this is where it becomes surreal, the DEC Alpha processor :flan_awe:!
I quote Raymond Chen directly:
"On the Alpha AXP, most 32-bit constants can be generated in at most two instructions. But there’s a range of values that requires three instructions: 0x7fff8000 to 0x7fffffff. "
As the person who ran the first three DEC Alpha systems in the UK outside DEC "REO" (Reading Office) I have a bit of history with these processors and yet I had never ever heard of this.
Don't ignore the links embedded in the page because they are worth reading too.
(also, if you do not follow Raymond Chen's blog via RSS you should - his series on processors and the history of Windows design decisions is fabulous).
#Windows #MemoryAllocation #DECAlpha #WindowsOnAlpha
__
¹ https://devblogs.microsoft.com/oldnewthing/20221216-00/?p=107598 -
Next at the #RetroComputing #FOSDEM devroom: AOSC OS/Retro - An Introduction
An Ongoing Quest for the Possibility of Modern #Linux on Vintage Hardwareby Mingcong Bai
https://fosdem.org/2022/schedule/event/retro_aosc/
https://live.fosdem.org/watch/dretro
#FOSDEM2022 #DECalpha #ARMv4 #i486 #loongson2f #PowerPC #PPC64
-
Next at the #RetroComputing #FOSDEM devroom: AOSC OS/Retro - An Introduction
An Ongoing Quest for the Possibility of Modern #Linux on Vintage Hardwareby Mingcong Bai
https://fosdem.org/2022/schedule/event/retro_aosc/
https://live.fosdem.org/watch/dretro
#FOSDEM2022 #DECalpha #ARMv4 #i486 #loongson2f #PowerPC #PPC64
