Upgraded X2.0 Pro to X3 CE. Only X2 bios seems to work

[snipes2598]

Hi,

I recently upgraded my xbox v1.0 from a Xecuter2.0 Pro mod to a X3 CE mod. The installation of the mod seems to be working well, as FlashBios loads without a problem.

However, after flashing the X3_3294 bios to the 1st 1MB and powering on, the xbox turns on, the mod turns on (blue light), and then about 2 seconds later, the xbox quickly turns off. There is nothing output onto the TV during this power-on and quick power off (black screen).

Strangely enough, however, if I flash the X2_4977 bios to the first 256KB and enable that bank, the X2 4977 bios loads great and my xbox boots to my dash.

Is there something else that needs to be reset on the xbox because I've upgraded from an X2 to an X3, in order for the X3 bios to work?

I have heard about an "eeprom"... does this need to be reset perhaps?

Thanks,
Snipes

 

[INailedFergie]

I have the same problem, does anybody know how to fix this

 

[Puffinz]

Did you in stall the pin header that came with the X3? as this has extra pins which the X3 uses to run the bios (pins 12/13 i think).

 

[snipes2598]

Nod. I used the pin header installation. This was something of a pain as I had to remove the solder from the holes in the LPC port.

Nonetheless, I was satisfied that the installation was correct as the X2 bios seems to work for me. But, if the X3 bios uses some extra pins that X2 doesn't then that might suggest that I may want to check the solder joints. I'm pretty sure that they're fine, but I'll double check...

 

[snipes2598]

Just noticed this "Sticky": Blank Screen After Flash X3 - SOLDER LPC 13 & 14 CORRECT

Sounds similar to my case.


(Sorry guys, didn't find this one in my searches)

 

[snipes2598]

Hmm.. No dice.

After multiple iterations of: removing the motherboard, fixing the soldering, and re-assembly, during my last re-assemble, I managed to bend some of the pins on the mod chip for the X3 external switch. I wasn't able to do much at that point as the backup boot didn't seem to work and nor did the boot with the mod chip enabled. The only boot I could do is with the mod chip disabled.

As such, I decided to simply remove the mod chip and ponder ordering another one. I have a feeling that my soldering might have been correct in the first place, and that something else might be at play here.

In any case, the furthest I got was to be able to boot an X2 bios (on the X3 CE mod). I'll have to consider that this might be the best configuration I may be able to get if I order another chip. Does anyone know how limited I would be with an X2 bios? I'm guessing there would be a larger set of "backups" that wouldn't load from the HDD.

Large photo attached, in case anyone is interested.