PS3 Fault finding YLOD with the SYSCON - First steps and Error reporting

He can try. Not sure if either hdmi or rsx as long there is no video on any port?
I don't know SB port pins for this board yet, I got it rare here. I will add it with time if I find any.
Command to activate SB log for this model is
"w 1202 02" this is first syscon SW model from Renesas/Nec.
Had one scrap last year but no more.
He could add closer clear photos from bottom of SB and then we can assume by looking at PCI port.
 
Kostaslgr7 said:
Also, is there a picture like the one you sent to measure voltages for when RSX is installed for VER-001? Thank you for your help
Click to expand...
There does now...
VER-001 (RSX Voltages).jpg

I'm not sure about the PLL or YC_RC_VDDIO. So I marked it with "???" You'll have to probe and see if the measurements are ballpark. If they are different than the other ones, it's probably right. Check the chart, if it matches pretty closely, then bingo. But if it's different than the others and the chart, then it's either bad or something else.
 
vyktormvmpay25 said:
He can try. Not sure if either hdmi or rsx as long there is no video on any port?
I don't know SB port pins for this board yet, I got it rare here. I will add it with time if I find any.
Command to activate SB log for this model is
"w 1202 02" this is first syscon SW model from Renesas/Nec.
Had one scrap last year but no more.
He could add closer clear photos from bottom of SB and then we can assume by looking at PCI port.
Click to expand...
Yeah, good point victor. We should make sure it's truly a GLOD, no output on any port. @Kostaslgr7 can you confirm there's no video out via MultiAV?
 
RIP-Felix said:
Nope, there should be 32 errors in the errorlog. Type errlog and it'll show all of them. Do a becount while you're at it.

Get those resistance measurements when you get a chance. I want to rule out a dead RSX before we waste too much time on shiz that's fine.

Looking at the bringup log, Power on reset and power on sequencing went fine (it made POST). The bootloader starts and then...
Code: 
#![INFO]: Connecting to Debug Device (SB UART)
# [UCMD] Unknown command.
Continues on like that. This is very possibly dead RSX VRAM, so we need to get those measurements.

Did you attempt to connect to the SB UART? @vyktormvmpay25 have you seen that? I wonder if he should try connecting to the SB UART to see more info. Maybe you can help him with that part, I haven't messed with SB UART yet.
Click to expand...
Hey, thanks for getting back, I have never connected to SB UART but would be interested to troubleshoot it more when you or @vyktormvmpay25 are available to help, here is what you asked for although becount didn't yield any results
python ps3_syscon_uart_script.py COM5 SW

>$ auth
Auth successful
>$ errlog
00000000
# CODE CLOCK
# A0802124 0B74B7B9
# A0802024 0B74B6B0
# A0802024 0B74B6AF
# A0802124 0B74B6A6
# A0802024 0B74B6A6
# A0112124 0B74B6A4
# A0112024 0B74B6A3
# A0112024 0B74B6A3
# A0112024 0B74B6A2
# A0112124 0B74B6A2
# A0112124 0B74B6A1
# A0112124 0B74B6A1
# A0112124 0B74B6A0
# A0112124 0B74B6A0
# A0112124 0B74B69F
# A0112124 0B74B69F
# A0112124 0B74B69E
# A0112024 0B74B69E
# A0112124 0B74B69D
# A0112124 0B74B69D
# A0112124 0B74B69C
# A0112124 0B74B69C
# A0112124 0B74B69B
# A0112124 0B74B69B
# A0112124 0B74B69A
# A0112124 0B74B69A
# A0112124 0B74B699
# A0112124 0B74B699
# A0112124 0B74B698
# A0112124 0B74B698
# A0112124 0B74B697

>$ becount
F0000003
# [UCMD] Unknown command.

>$ EEP SET 3961 01 00
FFFFA501
# addr=00003961 num=01 val=00

>$ becount
F0000003
# [UCMD] Unknown command.

>$ bringup
00000000
# [SSM] Bringup Start.

>$ becount
F0000003
OK 00000000

>$
 
I'll say rsx kind special glod, you really reach software without rsx at this point.
Edit.
I don't know why SkaziChris could not make it but I really have an assumption on that rsx side was about nec caps. If he read this he could try recap everything an test again. Seems like not fully potential for psu or one part in that psu filter side.
Not always if we have right voltage that means right amps are absorbed by cell/rsx.
As just last resort he can try that because his got AV output fine.
This case when we don't have AV/Hdmi output is likely rsx, isn't happening in phats, is happening in 2500 often along with time.
 
Last edited:
Kostaslgr7 said:
Sorry, didn't see the messages, ill measure the points soon, only need the 12v cable connected or the 2 prongs too? Can confirm no signal through neither hdmi nor av.
Click to expand...
Just measure resistance without power connected to the board. Those are the voltage lines, but we're just measuring the resistance (kinda like a health meter). I just put the voltage's there so you know what they are and could compare voltages if you wanted to.

Also, what were you trying to accomplish here?
Code: 
>$ EEP SET 3961 01 00
FFFFA501
# addr=00003961 num=01 val=00
It looks like you were trying to gain internal access? You don't want or need to do that with a Sherwood syscon. You need to put the eeprom back to it's default state. IDK what it's supposed to be on that board tho.
 
RIP-Felix said:
Just measure resistance without power connected to the board. Those are the voltage lines, but we're just measuring the resistance (kinda like a health meter). I just put the voltage's there so you know what they are and could compare voltages if you wanted to.

Also, what were you trying to accomplish here?
Code: 
>$ EEP SET 3961 01 00
FFFFA501
# addr=00003961 num=01 val=00
It looks like you were trying to gain internal access? You don't want or need to do that with a Sherwood syscon. You need to put the eeprom back to it's default state. IDK what it's supposed to be on that board tho.
Click to expand...
Yes, I used to do it when i did some old cxr models and i did it out of habit, my bad, so what should I run to fix it?
 
vyktormvmpay25 said:
He can try. Not sure if either hdmi or rsx as long there is no video on any port?
I don't know SB port pins for this board yet, I got it rare here. I will add it with time if I find any.
Command to activate SB log for this model is
"w 1202 02" this is first syscon SW model from Renesas/Nec.
Had one scrap last year but no more.
He could add closer clear photos from bottom of SB and then we can assume by looking at PCI port.
Click to expand...
I can grab some microscope pics if you point out some specific place because they will be more zoomed in.
I2DmMyk.jpg
 
vyktormvmpay25 said:
This case when we don't have AV/Hdmi output is likely rsx, isn't happening in phats, is happening in 2500 often along with time.
Click to expand...
I think there's a good chance the story will be told by measuring the resistance of all 7 rsx voltages and comparing to a working console, but we haven't done that yet. You do volume, so I suggest you give it a try when you come across another one.
Kostaslgr7 said:
Yes, I used to do it when i did some old cxr models and i did it out of habit, my bad, so what should I run to fix it?
Click to expand...
You need to write it back to the default value, but IDK what that is on a VER-001. @vyktormvmpay25 do you have a VER-001 you can check the default bit at address 3961?
 
@vyktormvmpay25 He posted pictur of PCI port. I think the SC and SB UART is there, it's just they left the jumper pads off in this revision. You have to connect to the PCI pad. Looks like the outermost 2 (not the GND of course).
 
RIP-Felix said:
@vyktormvmpay25 He posted pictur of PCI port. I think the SC and SB UART is there, it's just they left the jumper pads off in this revision. You have to connect to the PCI pad. Looks like the outermost 2 (not the GND of course).
Click to expand...
The 2 pads bottom left as seen in this pic? remove rx and tx and solder there? Btw, pm me if you'd like discord or something and I'll post results/troubleshooting steps here so they're available for everyone, for your ease, whatever you want, thank you for help.
o3PzBXr.png
 
I do have a working sealed P model, which has a VER-001, but I don't really want to break the seal. I did buy it cheap (believing it was broken) to harvest the 65nm RSX, but didn't have the heart to kill it after finding it worked great. I just can't kill a great working console, especially a sealed one...I'm a softy!
 
Try see if get any voltage like one is 3v3 and one 05v or nothing while opening. My assumption
Not sure just test voltage on these as well
ed63bdfb3c1c8267c555ad439bdfaec0.jpg
After test voltage put uart pins on mobo pins and starting putty on pc, you should automatically get one log it you write before inside syscon that "w 1202 02".
If won't show just twist rx, tx. If still not working try your pins.
Always that log try to catch it from power of unit.
 
Last edited:
vyktormvmpay25 said:
Try see if get any voltage like one is 3v3 and one 05v or nothing while opening. My assumption
Not sure just test voltage on these as well
ed63bdfb3c1c8267c555ad439bdfaec0.jpg
After test voltage put uart pins on mobo pins and starting putty on pc, you should automatically get one log it you write before inside syscon that "w 1202 02".
If won't show just twist rx, tx. If still not working try your pins.
Always that log try to catch it from power of unit.
Click to expand...
Just to make sure, you want me to have psu connected both prongs and cable, and have my multimeter one on gnd on on pad and see if it goes up to 3v3 when turning on the console before it ylods because of the lack of heatsink? and if yes connect that rx to the syscon rx etc?
 
THIS test need to be done semi-assembled
with heatsink and fan connected and same time find voltage in less then a minute or turn it off
use plastic parts under clams without metalic sheild.like as should work
 
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