Topic: 128mb Upgrade (Read 151 times)

pCeSlAyEr · « **on:** June 21, 2004, 12:22:00 PM »

Ok I installed the chips and made damn well sure there were no bridges or lifted pins... and it still gives me red/orange blinking... also sometimes when it boots it just blinks red/green... WTF could be the problem... does I need a specific bios to run correctly? some people say it does and some say it doesnt..

oh and im running M7 bios...

lookformeb · « **Reply #1 on:** June 21, 2004, 01:18:00 PM »

Go over the pads again..

Make sure they aren't dry, bridged, etc.

You need to use a manifying glass to inspect.

pCeSlAyEr · « **Reply #2 on:** June 21, 2004, 01:24:00 PM »

Like I said... there are no bridges or loose pads... and I used a 5x magnifying glass...

lookformeb · « **Reply #3 on:** June 21, 2004, 01:29:00 PM »

Like I said... go over the pads again, with the iron.

With there being 400 pins, it's likely there is something you are not seeing. I've overlooked mistakes 2-3 times before seeing it on the final shot while going over each pin with the iron.

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

Make sure there is not an excess of solder which may be causing a bridge behind the pins.

pCeSlAyEr · « **Reply #4 on:** June 21, 2004, 04:19:00 PM »

I can see inbetween the pins and there is no solder build up... I even used a desoldering braind and removed the access solder... still red/orange... the only thing I can think of is that I overheated the chips removing them from the other motherboard...

also all the chips are already installed... is there a simple way to remove the chips and try to reposition them...

A@ron · « **Reply #5 on:** June 21, 2004, 04:39:00 PM »

there is an easy way (called a SMT reworking station) however, it's not a cheap piece of machinery. Did you make sure the chips are orientated correctly? they should be the same (the circles ontop) as the ones next to them. Also use flux when you redo pins.

A@ron

pCeSlAyEr · « **Reply #6 on:** June 21, 2004, 04:56:00 PM »

yes I lined up the dot on the board with the dot on the chip...

I seriously think I overheated the chips... I used a heatgun to remove them...

pCeSlAyEr · « **Reply #7 on:** June 21, 2004, 06:47:00 PM »

yep... thats what it was doing...

I said fuck it and took the chips all off one at a time... testing after each was pulled... not one booted... but now my xbox boots fine... mehhh... thats what I get for trying to use used chips... I guess ima have to just buy some chips next time.. oh well..

opjose · « **Reply #8 on:** June 21, 2004, 09:24:00 PM »

A@ron · « **Reply #9 on:** June 22, 2004, 03:57:00 AM »

Perplexer · « **Reply #10 on:** June 22, 2004, 04:58:00 AM »

I'll have to agree with the bastard above!

just kidding...

I used a heat gun to remove RAM chips for my first few RAM installs, and ran into some odd problems on some of them. Some upgraded boards would work fine, but others would flash red/orange, or lock up after running for a few minutes.

Switched to proper SMT removal, I haven't had a problem since. This is even though I am reattaching the chips with a regular soldering iron.

pCeSlAyEr · « **Reply #11 on:** June 22, 2004, 05:17:00 AM »

I didnt mean used ram is bad... I meant thats what I get for trying to remove it and install it myself... im a poor bastard and if I could afford the tools I would..

but now im having another odd problem... some times it boots... sometimes it gives me red/green flashing and some time it gives me red/orange... wtf coulda happened.. could I of caused the original mem chips to loosen somehow?

A@ron · « **Reply #12 on:** June 22, 2004, 07:38:00 AM »

you could have a solder bridge still somewhere.

A@ron

lenballs · « **Reply #13 on:** July 01, 2004, 05:21:00 PM »

A@ron · « **Reply #14 on:** July 01, 2004, 06:09:00 PM »

yes that will detect CRC errors but will not tell you where a bridge/loose pin is, since the machine wont boot if there is a bridge or a bad pin.

A@ron

Author Topic: 128mb Upgrade (Read 151 times)