Motherboards.......

04spike · 11-03-2009, 10:03 PM

Hello does anyone know if a TA-086 motherboard can be replaced with a TA-081 motherboard?

Many Thanks

slowman · 11-03-2009, 11:34 PM

These are both Phat motherboards, but it isn't like that makes a difference. Motherboard revisions come out when something changes, like the brand of the speakers or a slightly different wifi board.

I don't think anyone has documented which ones can be swapped, but all I hear about are problems such as no sound/internet not working/etc.

What's wrong with the mobo that you feel you need to swap it?

04spike · 11-03-2009, 11:48 PM

Quote:

Originally Posted by slowman

These are both Phat motherboards, but it isn't like that makes a difference. Motherboard revisions come out when something changes, like the brand of the speakers or a slightly different wifi board.

I don't think anyone has documented which ones can be swapped, but all I hear about are problems such as no sound/internet not working/etc.

What's wrong with the mobo that you feel you need to swap it?

Thanks for the reply slowman

I've got a Phat 1003 with a TA-086 motherboard running 5.0 m33 cfw and the problem is the games keep freezing both umd and iso.

I also have another psp phat 1003 with a TA-081 motherboard so i was going to swap the motherboards to see if this swapped the problem.

I have just swapped the boards and they did not work so future info for anyone else that is trying to replace motherboards you cannot replace a TA-086 with a Ta-081

So now i still have the freezing game problem

I have tried loads of different games UMD and ISO..CSO and reflashing the CFW but still the same problem runs for about 5 mins freezes then switches off. not sure what to do

mobsterbouma · 11-04-2009, 01:19 AM

well you're iso's could have been ripped at too low of a quality. try reripping with another program at highest quality.

Product F(RED) · 11-04-2009, 01:22 AM

A PSP is a motherboard, essentially. So if you replace the motherboard, you're replacing the PSP essentially. Just make sure you're in the same PSP model and that the internal parts are compatible (ie PSP 3000 screen is not compatible with PSP 2000 motherboard).

Ennon Galita-Shamoi · 11-04-2009, 04:08 AM

Whoa, no, you cannot replace a TA-086 with a TA-081! The 86 and 82 are interchangeable, and the 79 and 81 are interchangeable. They differ in their voltages.

Oh, and for your mobo problem. Turn it on to the XMB. If it's working fine, put pressure just to the right of the analog stick but left of the screen. Does it freeze?

04spike · 11-04-2009, 05:15 AM

Quote:

Originally Posted by Ennon Galita-Shamoi

Whoa, no, you cannot replace a TA-086 with a TA-081! The 86 and 82 are interchangeable, and the 79 and 81 are interchangeable. They differ in their voltages.

Oh, and for your mobo problem. Turn it on to the XMB. If it's working fine, put pressure just to the right of the analog stick but left of the screen. Does it freeze?

hi just tried this and yes it makes it freeze..... is this serious? can i do anything to fix it?

cheers

04spike · 11-04-2009, 09:08 PM

Quote:

Originally Posted by 04spike

hi just tried this and yes it makes it freeze..... is this serious? can i do anything to fix it?

cheers

Is this a commom problem?

Ennon Galita-Shamoi · 11-05-2009, 05:05 AM

Please, no double posting, thanks

And no, it's just the way the motherboards are. The Phat has 4 different hardware revisions, with different mobos for each. In the third hardware revision, they changed the voltages on the motherboard. So, you can interchange parts from the original Phat and the second revision; and you can interchange the parts between the third and fourth revision Phats.

Hopefully that makes sense :P

-----

And pushing on the analog area makes yours freeze?! Wow, you're the only other person I know who's Phat does that. I have not found a fix for it as of yet, only a remedy:

Have you ever opened up your PSP before? If not, and your warranty sticker is still there, then I encourage you to send it to Sony for them to fix. It'll cost a bit, but they will give you a brand new mobo (still hackable) and everything will work for sure.

If you have opened it before, and know where everything is, then do the following: (You will need a small piece of plastic (1 mm thick, just for mobo support), and some plastic/super glue.) Take apart your Phat completely. On the WiFi board, look at your Memory Stick slot (the side that faces the front)-glue that piece of plastic on top of there. Put it back together. If it doesn't fit back together nicely, your plastic piece is to big. Either way, your D-Pad may get screwed up after you are done with this (mine is, anyway.)

What the above is trying to accomplish is to add support behind the mobo so does not flex down (causing it to freeze). My theory is that the mobo battery is grounding out against the memory stick slot. Whether that is true or not, that's my best guess as to the root of the problem.

I sure hope that will help you

~Ennon

04spike · 11-05-2009, 08:57 PM

hi sorry for the double post.

i really like your theroy about the mobo grounding out.

Thanks for your suggestion i have tried putting a slim piece of plastic on the memory stick slot rebuilt and tested.... but sadly still no good infact it's prob worst it now freezes when the D pad is pushed and sometimes when it is not and is freezing almost straight away after booting up.
Maybe the plastic i have in is too thick so i will remove it and try some electrical insulation tape on the memory stick slot see if this makes a difference.
do you think it's worth trying the insulation tape straight on the mobo battery? just that there is a thin bit of ali between the mobo and the memory stick slot.

Thanks for your help Ennon also i'm vvv impressed with your 2 psp's with built in internal 16GB!!!

Ennon Galita-Shamoi · 11-05-2009, 10:02 PM

Hmm. . . made it worse? Did you put the plastic wedge on the correct side? (It should be between the mobo and the WiFi board.)

Try putting it together without the pointless metal pieces once, just to see if it makes any difference. (Except the metal piece that holds the LED screen in, obviously.)

If I had my Phat, I could show you some pictures. . . (My friend owns half of it, and I let him keep it, unless I need to fix it or something. My Slim I own 100% of.)

Oh, and why thank you. I love tinkering with electronics lol.

~Ennon

04spike · 11-12-2009, 12:21 PM

Hello Ennon, sorry for the delay i've been away for a bit

So I've tried removing the the bit of metal between the mobo and the memory stick slot and covering the mobo battery and the memory stick slot with insulation tape ...but still the same problem aahhh really can't see what could be on that part of the mobo that would cause this to happen.

Ennon Galita-Shamoi · 11-13-2009, 07:01 PM

Oh that's fine.

Hmm. . . I don't know. This is such an odd problem. Yeah the only fix I have for mine is adding support with pieces of plastic between the mobo and WiFi board.

Maybe it isn't your mobo? Try rebuilding it simplisticly - put it back together with just the mobo, LCD, and powerboard. Then push on the analog stick area again to see if it freezes. If it does, then its your mobo for sure.

I'll think on this some more. . .