Asus P4C800, need part numbers of power FET's

Hello Asus group, been awhile since I have been here!
I am working on a model P4C800 and need the actual numbers printed on the power
transistors surrounding the socket 478.
The power transistors are the small black devices (aprox 3/8" square) , (actually they
are FET's). The location #'s are as follows:
Q176
Q195
Q196
Q208
Q209
Q210
Q199
Q201

The numbers are similar to :
06N063

Thanks in advance,


Homie

--
Mainboards, Videocards & CPU pin repair.

http://motherboardrepair.com

In article ,
"Homie" wrote:

Hello Asus group, been awhile since I have been here!
I am working on a model P4C800 and need the actual numbers printed on
the power
transistors surrounding the socket 478.
The power transistors are the small black devices (aprox 3/8" square) ,
(actually they
are FET's). The location #'s are as follows:
Q176
Q195
Q196
Q208
Q209
Q210
Q199
Q201

The numbers are similar to :
06N063

Thanks in advance,


Homie

I have a P4C800-E Deluxe, and Q199 has the lettering 60T03H
on it, followed by 342405. The logo is A-Power, and the nearest
thing to a link is here. Note that the number I've read off
Q199 isn't listed here!

http://www.a-power.com.tw/products_05.htm

Q201 says FA0528 followed by FDD6606 and it could be a
Fairchild logo.

http://www.fairchildsemi.com/pf/FD/FDD6606.html

I had extreme difficulty seeing these labels. I used a LED
flashlight, but you have to hold the flashlight just right
to get the glare from the part to reflect back at you. I
couldn't use my magnifying glass at the same time, as I
just put the board in my case last night, and I'm not
about to take it back out right now.

I cannot make out enough of the others to help there.

Anyone else who has a board, please take a crack at it too,
as it is a real challenge for your vision. I'm no where
near 20-20.

HTH,
Paul

Thanks for the effort Paul,
I know how difficult it is to read these........
On your board, there should be some places for transistors with nothing actually
mounted ....?
Can you tell me which ones are left blank?

Here's what happened, I was repairing this board for a customer, it had several
shorted power transistors. I normally replace them as a set.
I was writing down the numbers as I removed them, then I got interrupted.....when I
came back to the job, without thinking, I removed the rest of the transistors without
writing anything down.... DOH!!!

So YES, if anyone can help with this, it would be great!
--
Mainboards, Videocards & CPU pin repair.

http://motherboardrepair.com


"Paul" wrote in message
...
In article ,
"Homie" wrote:

Hello Asus group, been awhile since I have been here!
I am working on a model P4C800 and need the actual numbers printed on
the power
transistors surrounding the socket 478.
The power transistors are the small black devices (aprox 3/8" square) ,
(actually they
are FET's). The location #'s are as follows:
Q176
Q195
Q196
Q208
Q209
Q210
Q199
Q201

The numbers are similar to :
06N063

Thanks in advance,


Homie

I have a P4C800-E Deluxe, and Q199 has the lettering 60T03H
on it, followed by 342405. The logo is A-Power, and the nearest
thing to a link is here. Note that the number I've read off
Q199 isn't listed here!

http://www.a-power.com.tw/products_05.htm

Q201 says FA0528 followed by FDD6606 and it could be a
Fairchild logo.

http://www.fairchildsemi.com/pf/FD/FDD6606.html

I had extreme difficulty seeing these labels. I used a LED
flashlight, but you have to hold the flashlight just right
to get the glare from the part to reflect back at you. I
couldn't use my magnifying glass at the same time, as I
just put the board in my case last night, and I'm not
about to take it back out right now.

I cannot make out enough of the others to help there.

Anyone else who has a board, please take a crack at it too,
as it is a real challenge for your vision. I'm no where
near 20-20.

HTH,
Paul

In article ,
"Homie" wrote:

Thanks for the effort Paul,
I know how difficult it is to read these........
On your board, there should be some places for transistors with nothing
actually
mounted ....?
Can you tell me which ones are left blank?

Here's what happened, I was repairing this board for a customer, it had
several
shorted power transistors. I normally replace them as a set.
I was writing down the numbers as I removed them, then I got
interrupted.....when I
came back to the job, without thinking, I removed the rest of the
transistors without
writing anything down.... DOH!!!

So YES, if anyone can help with this, it would be great!

For depops, you might download the manual for the board. The
picture of the board in the manual isn't clear enough to read
the part numbers off the MOSFETs, but it is clear enough to
see which sites are depopulated. I recommend the "Traditional
Chinese" translation of the manual, because they usually put
a higher res picture in that manual, than in the English one.

P4C800 Deluxe (pg. 19)
http://www.asus.com.tw/pub/ASUS/mb/s...224_p4c800.pdf
The letter "Y" is for MOSFET populated, "N" for no device installed.
There are nine sites, and only six are used for the three phase
vcore regulator.

Y N Y
Y

Y

N N
Y
Y

Y --- Fan_MOSFET

P4C800-E Deluxe (pg. 21) No Chinese manual, so use the French one.
This is the board I just finished building up.
http://www.asus.com.tw/pub/ASUS/mb/s...0-e_deluxe.pdf
The MOSFETs have the same pattern as above. I can see enough of
each one, to tell which is a 6606 and which is a 60T03, but I cannot
read the silk screen next to each one.

6606 N 60T03
60T03

6606

N N
60T03
6606

Y --- Fan_MOSFET

HTH,
Paul

Damn!
I can almost read the numbers.....
Thanks for that, it did cover what I needed for the unpopulated positions..
I never even thought of the manual, they usually don't help much for this type of
info.

Thanks again,



Gary (Homie)

--
Mainboards, Videocards & CPU pin repair.

http://motherboardrepair.com


"Paul" wrote in message
...
In article ,
"Homie" wrote:

Thanks for the effort Paul,
I know how difficult it is to read these........
On your board, there should be some places for transistors with nothing
actually
mounted ....?
Can you tell me which ones are left blank?

Here's what happened, I was repairing this board for a customer, it had
several
shorted power transistors. I normally replace them as a set.
I was writing down the numbers as I removed them, then I got
interrupted.....when I
came back to the job, without thinking, I removed the rest of the
transistors without
writing anything down.... DOH!!!

So YES, if anyone can help with this, it would be great!

For depops, you might download the manual for the board. The
picture of the board in the manual isn't clear enough to read
the part numbers off the MOSFETs, but it is clear enough to
see which sites are depopulated. I recommend the "Traditional
Chinese" translation of the manual, because they usually put
a higher res picture in that manual, than in the English one.

P4C800 Deluxe (pg. 19)
http://www.asus.com.tw/pub/ASUS/mb/s...224_p4c800.pdf
The letter "Y" is for MOSFET populated, "N" for no device installed.
There are nine sites, and only six are used for the three phase
vcore regulator.

Y N Y
Y

Y

N N
Y
Y

Y --- Fan_MOSFET

P4C800-E Deluxe (pg. 21) No Chinese manual, so use the French one.
This is the board I just finished building up.
http://www.asus.com.tw/pub/ASUS/mb/s...0-e_deluxe.pdf
The MOSFETs have the same pattern as above. I can see enough of
each one, to tell which is a 6606 and which is a 60T03, but I cannot
read the silk screen next to each one.

6606 N 60T03
60T03

6606

N N
60T03
6606

Y --- Fan_MOSFET

HTH,
Paul

In article ,
"Homie" wrote:

Damn!
I can almost read the numbers.....
Thanks for that, it did cover what I needed for the unpopulated positions..
I never even thought of the manual, they usually don't help much for
this type of
info.

Thanks again,



Gary (Homie)

You can also crosscheck the three phases, by noting which MOSFET
is connected the input side inductor L_in (which in turn goes to
+12V), and which MOSFET goes to GND. The position of the two MOSFET
types should be consistent on all three phases.

+12V
|
L_in
| ---- All high side MOSFETs connect
|---+ to this point
----|
|---+
|
+---Lout_#1---X ---- All Lout_n join at
| the "X"
|---+
----|
|---+ ---- All low side MOSFETS connect to
| GND
GND

A cross check is better than some magic smoke :-)

Paul