Cihiro stores Game Assignments not!!

[olum64]

hello I have a problem with Cihiro stores Game Assignments not!!


Battery 2032 I have replaced and also the li.ion 7.2 volt battery is also ok jumps from red to green when charged


where is the problem ?


Game comes from a Dey CF card boot Outrun 2 SP


greetings

 

[nem]

I have this same issue with one of my boards. I haven't looked in to it, but I bet it's the supercap next to the battery.

 

[olum64]

yes there are two times on the xbox and on the same time call it VGA board see photo



and my chihiro is a convercion from a ver.1 and ver.3 to a whole v3


I'll replace him with one Elko Goldcap 1,0F 5,5V

 

[obcd]

Outrun 2 SP uses the dimm board memory for it's settings and high scores. So the CR 2032 and the goldcap on the baseboard shouldn't matter for it.

The lithium battery in the dimmboard upper case can only hold the memory under tension for a couple of days when it's fully charged.

A compact flash setup will happily reload the game into the dimm sdram, but the Outrun2 SP settings will be gone.

A good indication is the loading time of the game. If the dimm sd ram still has it's contents, the system won't reload the game from compact flash.

 

[nem]

So how do you explain this: with my faulty motherboard the game verifies the DIMM memory, everything is OK, boots to game and the game assignments I have setup previously have been cleared.

My setup is running from CF, if you think that matters at all.

 

[obcd]

Outrun 2 SP is the only game I am aware of that creates a read / write partition in the dimm memory for it's settings / high scores.

The others use the ram chip on the baseboard that is kept under tension with the CR 2032 coin battery.
The one farad gold cap also buffers that backup voltage. It's purpose is to give you time to replace the CR 2032 and still keep your memory.

So, with faulty motherboard I assume you mean a faulty baseboard?

And, with what game did you had that behavour?

 

[nem]

OutRun 2 SP

I just meant faulty in the sense that the motherboard every then and now loses the game assignments. In these cases the DIMM memory check always passes, and the game isn't reloaded from CF.

Outrun 2 SP is the only game I am aware of that creates a read / write partition in the dimm memory for it's settings / high scores.

Good to know. Then the problem lies elsewhere.

 

[obcd]

The dimm is seen as the slave ide device from the motherboard point of view. On that ide device, the bios creates several partitions.
mbrom0 and mbrom1 are 2 partitions that are redirected to the 2MB flash chip. They contain segaboot.xbe and it's needed resources which
is basically the chihiro dashboard and the main test menu. They also create a read only partition in the dimm sd ram module that is used to store the game code.
Another partition is used for the networking. Not much is known about this and how it's used. The physical location of that partition differs between a type 1 and a type 3 netdimm.
Besides that, another R/W partition is created that Outrun 2 SP uses for it's settings and high scores. You would expect that to reside in the dimm sd ram as well.
I assume only the game code partition is checked for a valid game. If that check fails, the game is reloaded in it's partition.
Outrun 2 SP likely checks the integrity of the other R/W partition with it's settings and returns to default when the check fails.

So, maybe the sd ram module is bad, or it's having a bad contact somewhere between the ram module and it's connector.

Model 3 also creates an additional partition that the firmware update software uses.
No idea if anything else is using that. It was called mbsys if I remember well.

If by dimm memory check, you mean the check in the test menu, it still can be a dimm battery issue. That part isn't checked. They just write patterns in the dimm sd ram module and check if that works.