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Sony Vaio PCG-394L. powers up, bios posts, but constant beeping. if overheat, how to fix ? F2...

post #1 of 7
11/11/11 at 2:59pm
Thread Starter 

Sony Vaio PCG-394L.  powers up, bios posts, but constant beeping.  if overheat, how to fix ?  F2 can't enter bios.  hard drive/ mem OK.

 

is there some way to undervolt it ?  after bios posts, father reports it fails to boot with hard drive in place.  also needs another hard drive.  

 

is there a different key to enter bios ?

 

I would like to repair this myself i just have to have instructions as to what to do.  

 

thank you.  

 

 

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post #2 of 7
11/11/11 at 3:10pm
Quote:
Originally Posted by Arthur Rosene View Post

Sony Vaio PCG-394L.  powers up, bios posts, but constant beeping.  if overheat, how to fix ?  F2 can't enter bios.  hard drive/ mem OK.

is there some way to undervolt it ?  after bios posts, father reports it fails to boot with hard drive in place.  also needs another hard drive.  

is there a different key to enter bios ?

I would like to repair this myself i just have to have instructions as to what to do.  

thank you.  


Sounded like the motherboard is failing. Take a look at the sticky in the section for some dis-assembly guides and tips, then search the forum for "bake / baking". Give that a shot first

cheers ...
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post #3 of 7
11/11/11 at 3:19pm
You can also try using another power supply and battery - see if it helps

cheers ....
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post #4 of 7
11/11/11 at 11:32pm
Thread Starter 

I have completely disassembled the motherboard.  i do not have a VGN-FZ240E motherboard complete disasembly guide so if someone should have one this url is where i am at.  also any suggestions other than different power supply or battery are welcome.  i assume the laptop would turn on without a battery if it were plugged in, though i was dumb enough not to test that.  given that everything is taken apart, what should i offer someone on craigslist to fix it up, baked, power supply, or (can't be battery) reassembly.  if someone could give me a link to a manual for this specific motherboard repair it would greatly assist whoever is going to fix it up for me, the problem is, i can't pay alot of money to have it done.  so i need ideas and help.  thank you very much.  

 

Arthur H. Rosene III

 

 

 

 

VGN-FZ240E.JPG 964k .JPG file

 

 

I have also searched the entire Sony Vaio forum and cannot find any references on how to bake the motherboard.  i'm curious what % of these baked motherboards turn out good ?  380 degrees for 8 minutes ?  aluminum paper or pizza with aluminum paper lining ?

 

thanks...

 

 

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post #5 of 7
11/12/11 at 2:56am
Hot dog, one of many cleanest taking-apart that I saw headbang.gif

All the baking and bake tips are in the Dell Section. And the percentage of success currently stands at 99.999%. I see that you still have the CMOS battery connected, make sure that it is off the board before cooking

cheers ...
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post #6 of 7
11/12/11 at 12:18pm
Thread Starter 

thank you.  i've never been so successful taking apart a laptop.

 

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post #7 of 7
11/12/11 at 12:25pm
And as long as you only have less than 4 screws that you don't know where they are supposed to be when putting the whole thing back, you are a pro laugh4.gif

Good luck with the baking.

cheers ...
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