ANSWERED Faulty Coolrunner chip? No green light.

[rastiemon]

Ok so I have a coolrunner chip that won't flash the green light period. I was wondering what I could check on the chip that would cause this.

Its not the wiring cause I have tested 2 other coolrunners with the same wiring in place just swapped the chips out. Those both worked fine. Any suggestions on what could cause this? Thanks

 

[BL4K3Y]

I am assuming that you have programmed your CoolRunner with the relevant fileset?

If so, have you written an ECC image to your NAND (created with Python, 360 Multi Builder etc)?

 

[rastiemon]

Oops sorry I didn't mention that it was a slim.

Yes I wrote the proper files to the coolrunner. I have 4 other coolrunners sitting here and I tried 2 others with the same wiring and they work fine. ECC is fine I have no problem booting xell with the other chips just this one won't flash green period.

Green light does work when chip is erased though.

 

[BL4K3Y]

Slims are picky sometimes, all you can do really is try altering the position and/or shape of the CPU_RST wire or you could try the POST_OUT add-on board.

By the way, this is a Trinity board right?

 

[2615863]

Why cant you just leave the other coolrunners, must be a dead one, try flipping switch prg and nor switch and phat and slim

 

[vrtclhykr]

Check all the solder pads on the coolrunner. I had 1 that there was faulty soldering on all the pads for the prgm switch.

 

[rastiemon]

I will end up leaving another coolrunner in it after I finish troubleshooting this chip. It must just be a faulty chip. I have tried flipping the switch and programming it in NOR and PRG mode. Also have tried phat/slim as well.

Yes its a Trinity its actually sitting on xell as we speak. But with a different chip. I don't think the slim is being finnicky because with the same wiring in place the other chips boot in 30 seconds max. I had another faulty chip in this shipment as well so I am just gonna chalk it up to that. My mail man is pretty worthless and jams that crap in my mailbox hardcore. 2 outta 15 chips on that order are bad but oh well.

---------- Post added at 20:01 ---------- Previous post was at 19:56 ----------

Check all the solder pads on the coolrunner. I had 1 that there was faulty soldering on all the pads for the prgm switch.

Ok good suggestions. I will break out my MM and look this bad boy over under my magnifier. Playing with the switch now it seems a bit off. Maybe the switch is bad.

 

[rastiemon]

ok so I checked it out with the MM and it does seem something is off with the switch or the soldering of the switch. I will post back with an update of what I find out after I try resoldering or replacing. Thanks for the heads up on that vrtclhykr

 

[2615863]

Try to replace it before you mess something up and cant get it replaced.

 

[rastiemon]

Don't think they'll replace ordered them back in Nov. The prg/nrm switch on the one that doesn't turn green seems a bit off. But seems ok with a MM testing the points below the switch. Not sure if there are other things I should be checking and havent pulled the switch off yet.

 

[gazzaman2k]

does it still boot the console? if so then i wouldnt worry