That's not a problem. One light(Green one) is for power and another (Red one) is for Hard Disk. Red one will blink continuously, if hard disk is being accessed.
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Error 901 indicates a communication problem between the CPU board and the double-stacked I/O board in the contactor box. These boards communicate via a CAN bus using an RJ45 / ethernet cable.
1. Check the communication cable (RJ45) to ensure it is operating.
2. Is there an LED lit up on the double-stacked I/O board? If not, then this is the reason for the 901 code. Check for DC voltage at the 3-pin connector on the left side of the I/O board. If voltage is present but no LED lit on the board, replace the I/O board. If there is no voltage, check the power supply board. The power supply board is the square board to the left of the I/O board.
3. Check for cockroaches or cockroach droppings in the RJ45 communication ports. Clean out if necessar with compressed air.
4. Check the CPU board located behind the front panel with buttons on it. Remove the plastic cover over the board. Is there an LED lit up on it? If not, check for voltage at the 4-pin plug. If there is 12V DC and no LED, the CPU board is the problem. If there is no DC voltage at the 4-pin plug, check the power supply board.
5. Check the DIP switches on the I/O board. Make sure only the number 1 DIP switch is turned on. The remainder should be off.
I will assume that you have the first on/off switch turned on and the one for the element is not turned on. The machine is saying it is not ready to dispense hot water or steam.
Blue screen means no signal or data to be displayed. Needs good cpu to display blue screen. Use a Linux livecd to test the motherboard, then reinstall operating system on hdd.
You can fix it yourself. The CPU was to hot and the solder has come
off. Bad part is the solder is under the CPU and must be heated up. It
is lead free so it needs more heat then lead and you need to add flux. I
would start by getting the board out. Remove the thermal paste off the
CPU. Add flux with a flux pen. You want to get the flux under the CPU
so you might want to tip it on its side. After you have a good amount
of flux under the CPU you want to start to heat the parts around the
CPU. I would use a heat gun with temp. settings. You first want to
heat around the CPU to keep solder on the other parts from cracking.
You dont want to over heat the parts. After you preheat the board you
want to heat the CPU. It needs to be around 400 or 500 degs f. a good
15 or 30 sec. keep moving the heat gun. After heating the CPU you want
to start the cool down. Same as warming up the board but you want the
board to cool down slow. After all this you want to add New thermal
paste to the CPU. This helps transfer from the CPU. This is a must
because your PS3 is overheating as it is. After you do all this some
people say it only works for 2 to 6 weeks. Its all on how you fix the
board and how good of a job you did. I would back up your hard drive.
Then hope for the best!! good luck and i hope this helps you out.
actually if u repair an aoc monitor alone without getting connected to cpu once u switch on the monitor all led's will lit on ( green light ) it will remain on situation until u connect the vga connector to cpu that's the time led's will lit off and only the power led will remain in green condition.some aoc 5en once u power on power led is in green condition and if not connected to cpu it will be in orange condition.hope u get some idea but i am not sure if it will work with ur monitor. but as long as LEDs lit on i think no problem with ur monitor.
VRM and NMI lights lit usually indicate an issue with CPU #2's VRM which can be replaced. Also check 5 lights on back middle of system. If VRM light is lit here remove CPU 2 and VRM and reboot system. If system boots, this was the issue...
It could be a bad power supply. As far as I remember, this unit has a standard ATX 230 watt power supply. It should not be too hard to replace it. Its fairly straight-forward. Its a matter of removing the panel to access the connectors inside (make note of which comes from where) and unscrewing the power supply on the back of the unit. Reverse all actions to install new power supply. If you need more detailed help, reply to this post.
You pulled the processor out of your laptop ... that was a brave move ... generally laptop boards are fully integrated so there is very few options on changing the processor ... also because of the extreme heating conditions the heat sink bonding is very critical ... make sure you replace this properly or you will have overheating issues in the future ...
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