Fragging when hot, Ok when cool

[Bog]

I will start with what I am working with:
Xbox v1.3
X3CE pin install
X3 1959 bios flashed to 1234
Evox 3935 installed

I installed the X3 turned on the Xbox and got Flash Bios 3.0.0 installed 1959 by DVD into 1234 bank without problems. Hooked Xbox to home network and installed dashboard without problems. Here is where the issues began.

After using the Xbox for more than a couple of minutes (just enough time to warm it up) and I decided to turn it off then immediately turn it back on. This is where it acts up. What I mean by act up is it will turn on and off three times and the third time it will frag. At this point I let it frag for a few seconds then tap the power button to turn it off and tap the button again to turn it back on before the fan stops turning, it will usually boot into the dashboard without problem. I do not get this issue if I select reboot from within the dashboard, it will boot into the dash as normal. If I let the Xbox cool off for about ten minutes after using it, it just takes a quick tap of the power button to boot into the dash, no on-off-on-off-on-frag problem as when it is warmer. I also tried turning the fan speed up to about 50% just is case the CPU is getting too hot didn't seem to help though.

Another problem that I get is that it will not hold its time. Anytime that I turn the Xbox off is resets the time.

I feel that my chip install is correct because I am able to get the Xbox to boot into the dashboard even if I have to screw around abit when it is fragging or leave it alone for a while to cool off. I have reflashed the X3 with the 1959 bios again to see if that was the problem.

These are all the same steps that I did with a v1.0 (except wire install on v1.0), with that xbox there have been no issues at all so I am confused.

I am looking for suggestions, has anyone else had a similar problems?

Thanks

 

[arcmaster]

If it is a heat issue, are you sure you plugged your fan back in after installing your chip to the mobo?

Just a thought. Try adjusting your fan speed up a little in the settings menu. Might help if it is heat related.

 

[Bog]

Fan plugged in I know because when turned fan speed to 100% the Xbox wanted to take off and taxi across my floor.

 

[sb122606]

Bog,
This fragging sounds most likely due to solder points not made correctly.

As your box heats up (and it does not take long) then the joints around the LPC expand and go open circuit.
when its cool then the joints are probably just making contact.
re-do the soldering on the pin header and make sure u get the solder to flow on these pins...if necessary remove excess solder and apply a little fresh to each joint.

As far as losing time...then this is normal.
The xbox has no backup battery to keep an RTC running when switched off.
You could add an SNTP(Simple Network Time Protocol) server into your EVOX dash settings..
System Utils>settings>scroll down to clock and input an SNTP server address.
in fact add it to any other apps dashes u may use

Do a google search for public ntp servers canada...

 

[kimosabe]

sounds like a solder problem, same thing happened with my first solder attempt

 

[Bog]

Ok thanks for the suggestions, I will examine solder points again tonight.

 

[Bog]

I have touched up any questionable points on the pin header without success in regards to the fragging problem. I have tested them with a meter and they look ok, but if the problem is as described than I will have problems seeing the open contact.

Could this be a problem with the pesky d0 point? It looks ok and tests ok with the ohm meter.

I have the time issue addressed, thanks for the direction here too!

 

[SilverTalon]

Bog, I'd have to agree with the solder points not being totally connected. I'm not sure if you used flux when you installed the chip, but what you might want to try is using a hair dryer to heat the board around the LPC to a good temp and then resolder your connections, When I install chips, I do it in a room with no air movement, and about 80°F for good flow and use flux every time. You might want to follow the traces back about 3-5 inches from the LPC (where possible) and use a gator clip on the top of the board to verify the circuit. I went through a 1.6 fraggin all the time, and that was the only way I could verify the circuit.

Good luck..

Silver Talon

 

[Bog]

I like the hair dryer suggestion, I will try tomorrow afternoon. I am going to try and remove as much solder off all the pins and try and start from scratch again.

Thanks again everyone.