Napalm
New Member
The issue in short...
There is a very nice diagram of the Voltage Regulator Module (VRM), as it is used at the UWAVE motherboard. Just search the internet for the description (PDF format) of the ADP3160 and/or ADP3412 circuits of ANALOG DEVICES.
There are two 8-pin ADP3412 circuits at the motherboard, one of them is located at the left of the ATX power connector.
Below this circuit is one very small transistor (equivalent to a 2N3904).
This transistor caused the Presario to freeze at random intervals.
The transistor sometimes did not supply the VCC (+7 Volt) to pin 4 of the two ADP3412 circuits. This caused the VRM to stop supplying the 1.6 Volt for the Athlon processor.
I have used an ordinary NPN transistor (2N3708) as a replacement and connected it via three thin wires, which were made as short as possible.
thks all
There is a very nice diagram of the Voltage Regulator Module (VRM), as it is used at the UWAVE motherboard. Just search the internet for the description (PDF format) of the ADP3160 and/or ADP3412 circuits of ANALOG DEVICES.
There are two 8-pin ADP3412 circuits at the motherboard, one of them is located at the left of the ATX power connector.
Below this circuit is one very small transistor (equivalent to a 2N3904).
This transistor caused the Presario to freeze at random intervals.
The transistor sometimes did not supply the VCC (+7 Volt) to pin 4 of the two ADP3412 circuits. This caused the VRM to stop supplying the 1.6 Volt for the Athlon processor.
I have used an ordinary NPN transistor (2N3708) as a replacement and connected it via three thin wires, which were made as short as possible.
thks all