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Modifying the OG Xbox to have 256M of RAM [video]

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Re: Modifying the OG Xbox to have 256M of RAM [video]

#11
post #5

The real question is if this will stop Morrowind from secretly rebooting the XBOX at certain load screens.

Probably not, at least not without hacking the game. Typically only things which were built to use the extra RAM see any benefit, whether that's homebrew, leaked game betas which rely on the extra RAM that devkits had, or games made for the Sega Chihiro arcade platform which was basically an Xbox but with double the RAM.

Re: Modifying the OG Xbox to have 256M of RAM [video]

#12
post #4

Since it was mentioned in the Macho Nacho video, this was quite a hurdle. But it does bring up the question, what is the theoretical maximum possible? I know the CPU was 32-bit, so 4GiB is the upper limit in that regard. I don't know if the CPU has limited address lanes or any other physical limitation though. The max I've seen discussed is 1.5GB for a similar cpu on a normal desktop and 640MB for the test design of…

In theory the chipset max is 2GB, but the physical motherboard does not have enough address lines traced to support more than 256MB. Adding more memory would require a PCB redesign

Re: Modifying the OG Xbox to have 256M of RAM [video]

#13
post #6
post #4

Since it was mentioned in the Macho Nacho video, this was quite a hurdle. But it does bring up the question, what is the theoretical maximum possible? I know the CPU was 32-bit, so 4GiB is the upper limit in that regard. I don't know if the CPU has limited address lanes or any other physical limitation though. The max I've seen discussed is 1.5GB for a similar cpu on a normal desktop and 640MB for the test design of…

I can't figure out if the xbox processor supports PAE or not. But references say most Intel processors after pentium pro, including Pentium III support PAE. Probably with 36 bits of physical addressing. But it's a mobile socket; no idea if they put all the address pins out on those.

OT: Like you mentioned PAE was introduced with the Pentium Pro in '95. That was the same year my family got its first PC, with a whopping 8MB of RAM. It's wild to think that Intel was looking at 4GB and saying, "This probably isn't going to be enough."

Re: Modifying the OG Xbox to have 256M of RAM [video]

#14
post #2

Amazing that this is possible. Also saw a video of upgrading a Nintendo Switch to 8GB of RAM https://www.youtube.com/watch?v=J4oXmQGZgzU

The Switch memory expansion is probably much more useful than this, for general users. No standing software is able to utilize this memory expansion, only homebrew software specifically coded for it can.

In contrast, the Switch OS manages memory for apps and would be able to allocate additional memory automatically, as long as it's been made aware.

Re: Modifying the OG Xbox to have 256M of RAM [video]

#15
post #13
post #6

Earlier quoted context omitted.

I can't figure out if the xbox processor supports PAE or not. But references say most Intel processors after pentium pro, including Pentium III support PAE. Probably with 36 bits of physical addressing. But it's a mobile socket; no idea if they put all the address pins out on those.

OT: Like you mentioned PAE was introduced with the Pentium Pro in '95. That was the same year my family got its first PC, with a whopping 8MB of RAM. It's wild to think that Intel was looking at 4GB and saying, "This probably isn't going to be enough."

>It's wild to think that Intel was looking at 4GB and saying, "This probably isn't going to be enough."

Not really. While consumers at home had 8MB, Intel was already looking to compete with PowerPC, DEC Alpha, MIPS systems where 4GB wasn't really out of the ordinary, so they knew where things were going.

Re: Modifying the OG Xbox to have 256M of RAM [video]

#16
post #5

The real question is if this will stop Morrowind from secretly rebooting the XBOX at certain load screens.

Are you kidding? It's a Bethesda game, of course it won't fix any bugs. It's 2024 and the exact same sort of issues exist in Skyrim and Fallout 4 (even after the remasters/anniversary editions)!

I've run into issues recently (in June) with Fallout 4 where if your saved game data starts approaching 2GB on Xbox One x, saving the game will fail in weird ways (may hang the game, may crash the game). Once the game gets in this state, I'm not even able to launch the game without it hanging. Have to delete local game data, resync your saves from Live and pray you didn't lose more than a few minutes of gameplay.

Re: Modifying the OG Xbox to have 256M of RAM [video]

#17
post #5

The real question is if this will stop Morrowind from secretly rebooting the XBOX at certain load screens.

Are you kidding? It's a Bethesda game, of course it won't fix any bugs. It's 2024 and the exact same sort of issues exist in Skyrim and Fallout 4 (even after the remasters/anniversary editions)! I've run into issues recently (in June) with Fallout 4 where if your saved game data starts approaching 2GB on Xbox One x, saving the game will fail in weird ways (may hang the game, may crash the game). Once the game gets in…

I mean in this case, it's not a bug, it's a feature. The original Xbox had a feature where you could reboot and directly launch a binary while an image remained in the framebuffer.

Throw up a loading screen and secretly reboot.

Morrowind used this to silently reboot the Xbox to free memory.

https://www.youtube.com/watch?v=x0TKwPnHc-M

Re: Modifying the OG Xbox to have 256M of RAM [video]

#19
post #5

The real question is if this will stop Morrowind from secretly rebooting the XBOX at certain load screens.

Are you kidding? It's a Bethesda game, of course it won't fix any bugs. It's 2024 and the exact same sort of issues exist in Skyrim and Fallout 4 (even after the remasters/anniversary editions)! I've run into issues recently (in June) with Fallout 4 where if your saved game data starts approaching 2GB on Xbox One x, saving the game will fail in weird ways (may hang the game, may crash the game). Once the game gets in…

I remember buying Skyrim VR, only for it to be unplayable without modding because the physics is tied to the FPS and anything above 60 Hz would send objects flying everywhere (including the carriage in the intro sequence).

Re: Modifying the OG Xbox to have 256M of RAM [video]

#20
post #2

Amazing that this is possible. Also saw a video of upgrading a Nintendo Switch to 8GB of RAM https://www.youtube.com/watch?v=J4oXmQGZgzU

The Switch memory expansion is probably much more useful than this, for general users. No standing software is able to utilize this memory expansion, only homebrew software specifically coded for it can. In contrast, the Switch OS manages memory for apps and would be able to allocate additional memory automatically, as long as it's been made aware.

Stock switch OS plays games faster / loads faster?
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