Xbox Cpu Upgrade to 1GHZ Attempt

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posted by Floydthebarber on Feb 6, 2014:

Okay, so after some more research I think I have got all the modifications figured out. Here is a picture of them.


These modifications should allow this transition to happen

"An operating mode transition to the high core frequency can be made by putting the processor into the
Deep Sleep state, raising the core voltage, setting GHI# low, and returning to the Normal state.
This puts the processor into the “Maximum performance” mode."

From the Intel Mobile Intel Pentium III Processors in BGA2 and Micro-PGA2 Packages document.
 

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posted by Master13 on Feb 7, 2014:

Great news if its true man
 

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posted by billcosbymon on Feb 7, 2014:

I hope this works, It would be awesome modding my xbox with a 1.4mhz pentium III.
 

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posted by davidthomas on Feb 7, 2014:

His mod is not for a 1.4GHz it is for the 1GHz. The 1.4 requires a adapter board that trusty has developed. Nobody else has got that far yet. N64 freak has got he 1GHz CPU upgrade done and now it seems like Floydthebarber is close! The 14GHz will be next I am sure. I just wish that the 1.4 would be as close to drop in like the 1GHz is.
 

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posted by Teancum on Oct 10, 2014:

Floyd did you make any progress on this? Looks like you just needed to test your findings. Would be interested to know if it worked out or not.
 

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posted by Floydthebarber on Oct 10, 2014:

Teancum said:






Floyd did you make any progress on this? Looks like you just needed to test your findings. Would be interested to know if it worked out or not.

No I didn't make any progress on it Teancum, only because I haven't been able to afford the equipment to perform the upgrade. For a good quality BGA Reballing Station you are looking at spending at least $700. Pretty dam expensive. I was going to buy one at one point, but finances got tight so I wasn't able to. Hopefully someday in the near future I will be able to get one.
 

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posted by LeHaM on Oct 13, 2014:

You can get a scottle ir360pro (scottle is just a generic Chinese unit that's rebranded) fairly cheap new or $500 used if you get lucky but if you do go with a Chinese unit use your own thermocouples as they aren't very accurate apparently(the built in ones) just replace the leads with good ones, they are K types iirc ..
 

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posted by LeHaM on Oct 13, 2014:

I'm just going to bend the forum thread space time continuum for a second here and ask this,
with upgrading ram, will the bios freak out only if there is less Ram then expected.

ie: I have a stock bios, add more ram, then flash a 128mb compatible bios. Is my understanding correct?

TIA