P4, P5 and P6 cables are unconnected. Where do they connect

The wires will only connect in the right places. If you haven't been inside before the problem started, then there is nothing to worry about in that respect, cables don't just unplug themselves. There is a very good chance that the power supply itself has failed. They aren't expensive and are easy to fit. Just take a photo of the inside before you remove the old one, it will make it easier to refit the new one.

Hmmm, P4 is usually a designation, for a 4-pin ATX +12 Volt power cable,

http://www.playtool.com/pages/psuconnectors/connectors.html#atx12v4

I see though that they have P2 as the 4-pin ATX +12 Volt power cable, and P4 as a SMALL 4-pin Peripheral power cable,

http://www.playtool.com/pages/psuconnectors/connectors.html#floppy

This type of power cable is used on a Floppy Drive, or a Card Reader.
Not a Harddrive, or Optical Drive. (CD/DVD drive)

The Standard 4-pin Peripheral power cable, is used on an IDE (PATA) harddrive, or optical drive,

http://www.playtool.com/pages/psuconnectors/connectors.html#peripheral

Rounder corners on the Top of the plug connector.
Only plugs in, in one direction.

Owner's Manual > Page 109 -
Power Supply DC Connector Pin Assignments

P1 = 24-pin ATX main power cable,

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain24

P2 shown above - 4-pin ATX +12 Volt power cable

P3, P5, and P6 are SATA power cables,

http://www.playtool.com/pages/psuconnectors/connectors.html#sata

If you have a SATA optical drive (CD/DVD drive), the above is the power cable used.

Uses a SATA data cable,

http://en.wikipedia.org/wiki/File:SATA_ports.jpg

SATA data cable connector on motherboard, is shown below the SATA data cable.

NOTE*
Color does NOT matter

For additional questions please post in a Comment.

Regards,
joecoolvette

This is the usual configuration of USB connection on motherboard.

If you have single cables (4 separate cables for each USB port), connect following wires in order to the right side pins from top to bottom.
+5V (1) P4 - (1) - You may have any number in place of 4 P4 + (1) - You may have any number in place of 4 GND (1)
On left side, connect
+5V (2) P5 - (2) - You may have any number in place of 5 P5 + (2) - You may have any number in place of 5 GND (2)

turn aqualink and PDA off then turn aqualink back on then PDA if same thing happens open the case on the antenna to see if red and green lightsare flashing also check to see if the red 4 pin plug is connected inside the top panel then make sure cable to antenna isnt broken

This problem was posted on several sites, but this was the only one where I found both the cause of the problem and the solution. Mine is a Hunter 5 Minute Fan which came with no remote. And after about a month the two lights would blink together whenever I'd turn them on at the wall. So in case it helps for that type of fan or the same type of wiring arrangment here is what I did: POSITIVE SIDE: P1) Remove the light shade. P2) Remove the 3 screws that hold the cowel and lower the cowel. P3) Disconnect (pull apart) the black and red wire coupling. P4) Cut the coupling off of the black wire that comes up from the lights. P5) Strip off a quarter inch of jacket from that black wire. P6) Remove the wire nut that connects the black wire coming from the governor with the other black wire. P7) Re-use the wire nut to connect the black wire from step P5 with the other black wire from step P6. NEGATIVE SIDE: N1) Disconnect (pull apart) the white to white wire coupling. N2) Cut the coupling off of the white wire that comes up from the lights. N3) Strip off a quarter inch of jacket from that white wire. N4) Remove the wire nut that connects the white wire coming from the governor with three other white wires. N5) Set the governor aside (or just throw it away). N6) Re-use the wire nut to connect the white wire from step N3 with the other white wires from step N4. That's all, you're pretty much done! Turn on the power and test the light. If all is good, re-install the cowel and the light shade.

you can use anyone of them. It doesn't matters.

anyone can go anywhere dude. It really doesn't matters.

they are usually number given to the power cord in the computer with power supply..

Update the video drivers on the PC. This is sometimes typical if you are running the Windows Default driver for a video card, or if the video card vendor has made a mistake. Usually there should be a new release, if the latter was true.

Sounds like a keyboard error. Make sure there are no stuck keys and all cables are secure. Turn of pc before checking.