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Posted on Jan 02, 2017
i need wiring diagram for my emachine t2042! I can't figure out where the red/white, green/white and black/white wires go!
I already know where the power supply wires go, everybody does- they're all the same!
Posted on Oct 11, 2008
this is the manual of your motherboard:
note that MS-7142 is actually K8MM-V (as you can see the filename of the manual is: M-7142.zip
Posted on Sep 04, 2009
I have not identified the specific components on the motherboard that blow, but I can tell you the defect in the Bestec supply. The +5 VSB, which is the voltage that is on at all times, loses regulation and climbs to 8-11 volts. I believe this "higher than the required" +5V takes out the components on the motherboard involved with the computer/power supply "turn-on" circuitry. The "on" button on the eMachines front panel no longer turns the motherboard on because the "kept alive when the main power is off circuits" - which allow the on/off button to do its job of turning on the machine - no longer work.
Test your Bestec power supply by plugging it in the wall socket and have it not connected to anything. Read the voltage between the purple wire and any black wire. If you see +5.0V, then this wasn't your problem. If, like it did on mine, is closer to between 8, and 11 V, this is what took out the motherboard.
Posted on Oct 08, 2009
Well thats not good, however if you can identify the Positive, usually RED, and Negative, usually BLACK. on the Fan, You can actually carefully insert the bared wire into a spare drive power connector, fans are all 12 V. You can use the YELLOW.. +12V & the alongside BLACK - 0V. This will power your fan. BE CAREFUL doing this. Once inserted use a piece of tape to secure the wires and fold them back against the Plug and secure. You may be able to buy a converter that plugs into that power connector & the fan?
Posted on Feb 22, 2010
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