Slim Red Light at Boot

spookyman166

VIP Member
Jun 13, 2011
192
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NZ
Your SB is done... If you cant read or write nand it means that SB is gone... (if your solder is good)... Non-MS power supply can also cause the SB to pack-up. They have inferior filtering systems and are generally rubbish...
 

Statecowboy

BANNED
Feb 23, 2005
713
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Midwest USA
Your SB is done... If you cant read or write nand it means that SB is gone... (if your solder is good)... Non-MS power supply can also cause the SB to pack-up. They have inferior filtering systems and are generally rubbish...
I can read and write band just fine. I had toasted my nand-x. I have a new one now and it works fine.
 

esbmaepo

VIP Member
Oct 2, 2011
461
48
Esbjerg - Denmark
Would you guys give up on this one, or is there still hope for it? As mentioned, here are the voltages I'm getting. The 1.2V seems strange. These should be at ground.

/
Here are the correct readings:

J2C1-1 = 0V
J2C1-2 = 5V
J2C1-3 = 0V
J2C1-4 = 0V
J2C1-5 = 5V
J2C1-6 = GROUND
J2C1-7 = 0V
J2C1-8 = 0V
J2C1-9 = 0V

J2C3 - 1 = 0V
J2C3 - 2 = 0V
J2C3 - 3 = 0V
J2C3 - 4 = 5V
J2C3 - 5 = 5V
J2C3 - 6 = 0V
J2C3 - 7 = 5V
J2C3 - 8 = 0V
J2C3 - 9 = 5V
J2C3 - 10 = 5V
J2C3 - 11 = 5V
J2C3 - 12 = 0V
J2C3 - 13 = 5V
 

Statecowboy

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Feb 23, 2005
713
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Midwest USA
Here are the correct readings:

J2C1-1 = 0V
J2C1-2 = 5V
J2C1-3 = 0V
J2C1-4 = 0V
J2C1-5 = 5V
J2C1-6 = GROUND
J2C1-7 = 0V
J2C1-8 = 0V
J2C1-9 = 0V

J2C3 - 1 = 0V
J2C3 - 2 = 0V
J2C3 - 3 = 0V
J2C3 - 4 = 5V
J2C3 - 5 = 5V
J2C3 - 6 = 0V
J2C3 - 7 = 5V
J2C3 - 8 = 0V
J2C3 - 9 = 5V
J2C3 - 10 = 5V
J2C3 - 11 = 5V
J2C3 - 12 = 0V
J2C3 - 13 = 5V
Those aren't standby power voltages.
 

esbmaepo

VIP Member
Oct 2, 2011
461
48
Esbjerg - Denmark
Sorry your right! My multimeter has a fault in its display.

These must be the correct readings:

J2C1-1 = 0V
J2C1-2 = 3.3V
J2C1-3 = 0V
J2C1-4 = 0V
J2C1-5 = 5.1V
J2C1-6 = GROUND
J2C1-7 = 0V
J2C1-8 = 0V
J2C1-9 = 0V

J2C3 - 1 = 0V
J2C3 - 2 = 0V
J2C3 - 3 = 0V
J2C3 - 4 = 3.3V
J2C3 - 5 = 3V
J2C3 - 6 = 0V
J2C3 - 7 = 3.3V
J2C3 - 8 = 0V
J2C3 - 9 = 3.3V
J2C3 - 10 = 3.3V
J2C3 - 11 = 3.3V
J2C3 - 12 = 0V
J2C3 - 13 = 5.1V
 
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Statecowboy

BANNED
Feb 23, 2005
713
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Midwest USA
Sorry your right! My multimeter has a fault in its display.

These must be the correct readings:

J2C1-1 = 0V
J2C1-2 = 3.3V
J2C1-3 = 0V
J2C1-4 = 0V
J2C1-5 = 5.1V
J2C1-6 = GROUND
J2C1-7 = 0V
J2C1-8 = 0V
J2C1-9 = 0V

J2C3 - 1 = 0V
J2C3 - 2 = 0V
J2C3 - 3 = 0V
J2C3 - 4 = 3.3V
J2C3 - 5 = 3V
J2C3 - 6 = 0V
J2C3 - 7 = 3.3V
J2C3 - 8 = 0V
J2C3 - 9 = 3.3V
J2C3 - 10 = 3.3V
J2C3 - 11 = 3.3V
J2C3 - 12 = 0V
J2C3 - 13 = 5.1V
Appreciate it. I'll try to trace back from the points where I have 1.2V, maybe I'll find something blown.
 

Statecowboy

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Feb 23, 2005
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Midwest USA
i have a dead slim board that i suspect has blown SB (no power). i found this replacement PSB for 15$ here http://xbox-experts.com/shop/xboxex...-southbridge-chip-black-preballed-new-76/USD/ (in case u decide to try, best of luck!)
I think I may give that a shot. Only problem is it's not available in the US. Anyone know of a good reputable place to get a SB chip for a slim (and not get ripped off)?

Also - probaby a dumb question, but the southbridge doesnt need to be from a slim right? A southbridge is a southbridge, right? Could it be from a phat?
 
Last edited:

XeX_DuBwoofer_x

Full Member
Dec 8, 2011
70
0
Hastings, UK
seems like this slim is a pain! just done some reading for you where the SB is concerned i think if you use a jasper SB i think its fine the link on xbox-experts says its used on jasper and xbox slim chipsets/motherboards hope that help's you, if i was in the us would send you my old slim board that needs a alternate nand XD mod etc as im stuggling to find a 16MB card cheap in the uk anyway good luck my friend hope you get the ol' girl running again
 

drogy

Full Member
Jul 8, 2010
35
0
Romania
you can only use "PSB" - that is jaspers and slims. the older southbridge is "XSB" i think, maybe more versions, a SB is not just a SB :)
i changed mine yesterday and i still have the same problem. nand detecting and writing but can't read back so it was time wasted, won't do that again :)
 

Statecowboy

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Feb 23, 2005
713
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Midwest USA
Can anyone tell me if the trace I have highlited and the pad next to it (FT3N2) are supposed to be in contact?

 

Argentum

VIP Member
Dec 13, 2011
388
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Khobar, Saudi Arabia
My secondary code was 0032 though not 0010

---------- Post added at 09:44 ---------- Previous post was at 09:43 ----------

My secondary code was 0032 though not 0010.

But the question here how does RGH wreck your SB. Did you program the CR while connected to the board or try alternative 3V3 point
 

dragontm

VIP Member
Oct 25, 2009
898
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kent uk
My secondary code was 0032 though not 0010

---------- Post added at 09:44 ---------- Previous post was at 09:43 ----------

My secondary code was 0032 though not 0010.
that error code may be linked to your Temp sensor, i believe it is the same as error 0030 which could be bridged solder
 

Argentum

VIP Member
Dec 13, 2011
388
0
Khobar, Saudi Arabia
that error code may be linked to your Temp sensor, i believe it is the same as error 0030 which could be bridged solder
Actually it turned out to be a cut in cpu_rst trace and when I fixed that it worked.

I have another slim, though with 0032 but trace is not cut and I cant find anything bridged

Check it out here see if you can figure out what happened
http://www.team-xecuter.com/forums/showthread.php?t=84887
 

Statecowboy

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Feb 23, 2005
713
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Midwest USA
Sorry to raise an old thread from the dead, but I did want to add to this.

When I was soldering the Coolrunner, I had the power supply plugged in. I'm assuming that this fried the power regulators (also known as MOSFETS right?). I'm going to try and replace the MOSFETS and see if this gets me anywhere. Can someone recommend a place to pick up replacement MOSFETS for slim mobos? Is it as easy as going to radioshack?