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[Sauron-Jin]

QUOTE (lookformeb @ Jun 21 2004, 10:29 PM)

...After you work one chip, put it back in the case and test before moving to another...

You can really boot up your machine without installing all of the 4 chips of the memory uprade???

PLz, anyone can confirm this?

[A@ron]

nope you cannot. all 4 need to be set properly for the machine to boot.

A@ron

[Perplexer]

QUOTE (antiflag1980 @ Jul 3 2004, 06:18 AM)

That's not true, I ran mine for about two weeks with six chips.  It may be version dependent whether or not you can though?

This is true.  For my first RAM install (on a 1.0), I tried booting up the board after each chip was installed.

Chip #5 = booted, showed 64MB
Chip #6 = booted, showed 64MB
Chip #7 = FRAO
Chip #8 = booted, showed 128MB

[A@ron]

Were 5 and 6 ontop or in the bottom positions? I may give this a shot on a 1.0 I've got here.

A@ron

[Hedis]

Perplexer, any ideas?

Which is the location for chip 5,6,7 and 8? as you call them in your message

[pCeSlAyEr]

I took my soldering Iron and cleaned up all my points and whatever looked suspicious and my box no longer gives me red/green or red/orange flashing... the light stays solid now... but my shit freezes at the blob or sometimes after launching a app or whatever... wtf is wrong now?

[spgurley]

Heat gun might have knocked off some resistor somewhere or something

[Hedis]

)

Just ran the memorytest and got:

Tested memory: 131072
Memoryblocks OK: 116352
Memoryblocks Error: 0

DAMN!! The picture freaked out.

Well, should i read this like 1 chip i damaged? and the one that is tested last?

Tha question is witch chip is nr8.

Can the reason to Perplexter´s suceess in testing the xbox using 5, 6 chips be that he mounted tme in the right order?
And that it didn´t work with 7 chips be that he swapped chip 7 and 8? (the location of them)

He wrote this to me:

QUOTE

5th chip was on top, closest to the power connector.  6th on top by the IDE port.  7th on bottom at the bottom edge of board 8th on bottom my the A/V port.  I'm pretty sure that was it.

So if my theory is right:
Chip 1-4 is standard mounted.
Chip5 Top, closest to the power connector.
Chip6 Top, closest to the IDE port.
Chip7 Bottom, closest to the A/V port.
Chip8 Bottom, at the bottom edge of the board.

What do you think of this?

[pCeSlAyEr]

QUOTE (spgurley @ Jul 9 2004, 02:33 AM)

Heat gun might have knocked off some resistor somewhere or something

I used the heatgun to remove the chips from another board not from this one...

[Hedis]

A@ron > Have you tried mounting the chips and tested the box before you continue with the next one (on a 1.0 motherboard)?

I´t would be nice to know if that would work.

[Perplexer]

[Perplexer]

QUOTE (Hedis @ Jul 9 2004, 04:38 AM)

Just cleaned the board and now i can boot. (at least once ) Just ran the memorytest and got: Tested memory: 131072 Memoryblocks OK: 116352 Memoryblocks Error: 0 DAMN!! The picture freaked out.

This sounds like you have one or more erratic pin connections.  It is working well enough to boot sometimes but that pin/pins are either floating or just barely connected.

The fact that it booted and gave you those numbers is good.

Don't remove any chips, but clean the board, re-apply flux (liquid flux would be best) and go over the pins one more time.  I bet you that will do it  

[tester123]

Also, when applying these chips, do not add any solder. There's plenty on the pads to begin with. Thats where I think 90% have so many problems. They're getting solder bridges they cannot see. Yes, you can bridge pads UNDER the chip and you would never be able to see it, even with a microscope.

[A@ron]

You may not need one (a SMT station that is) but it can come in handy. While you recommend chip qwik let me just say that that product has been around quite awhile yet people still try to take the cheap road out and use a heatgun/oven/desoldering braid and a pin to avoid paying anything. It's the human nature why pay for what tools you should use when you might be able to accomplish it (but most likely not) for free.

A@ron

[Hedis]

Well... Now all the 4 extra chips is removed.
I get one green flash and the red flashes directly. (not 3 times reboot)

Well, I´ll have to continue the trip on the motherboard.

Any info about the flash-code?