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motherboard switch out


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#1
without_reason

without_reason

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I have an emachine with D845EPI
intel board....can I replace it with an Imperial GV 20030812 board? are the voltages etc. same?


thanks
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#2
Neil Jones

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Um, why do you want to replace an eMachines board with another eMachines board? They're all as bad as each other.
Anyway, if you really want to do it, you can but you may need to do a Windows Repair on it if the chipsets are different.
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#3
without_reason

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hi, thanks for your get back.....the original D845EPI board came in a T2824 emachine.....which cooked the power supply and motherboard.....i had access to the the imperial board....installed it in the old emachine....I got nothing! no power up, no light on motherboard...i dont know if the gv board is cooked, or if i have missed something on the install/hook up
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#4
Doby

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Try another power supply, emachines are notorious for psu failure and alot of times it takes the motherboard with it.
You should also try and set it up outside the case with only cpu with fan heatsink,psu,1 stick ram, video card, keyboard, mouse, monitor.
To start touch the 2 pins the case switch connects to with a screw driver, release when the computer starts
The idea here is just to see if it will post and you can get into bios/setup.
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#5
Tyger

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Let's put it this way, the motherboard doesn't know what box it's in as long as all the mounting holes match and nothing is shorted out. But the hard drive (i.e. operating system) knows what motherboard is being used.

And yes, lower end computers like eMachines and Compaqs will have unreliable and underrated power supplies which eventually cause the machine to fail, often taking other parts with it.
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#6
without_reason

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the power supply is good, the cpu is good. i just dont know enough about technicals: is the memory from the old emachine D845EPI board compatible with the imperial GV board? are the board voltages the same? are there any jumper settings on the GV needed to power up?

i did try the start up method you described, and still get no signs of power.
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#7
without_reason

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Tyger, thanks, for the reply. is there anything about me physicaly installing the board that would leave something shorted? all I did was screw the board to the box and match plugs to sockets. also, the plate at the back of the computer in which all the outside wires plug in didnt quite line up with the board so I removed the plate..
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#8
Doby

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If you get no power at all it can be 3 things

1) Dead psu, try another or test this one, remove it completely, plug it into the wall outlet then on the 20/24 pin connector touch the green and any black wire. The psu should turn on it not its dead.

2) Bad case switch, touch the 2 pins the case switch connects to with a screw driver, this should start the computer.

3) Bad or shorted mobo, set it up out side the case, you could have a misplaced standoff touching the bottom of the board
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#9
without_reason

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Doby, thanks for your get-back. i took th mb out and tried to power up....same thing.....nothing, however, when mb was in the case, or out, when i disconnected the hard drive ribbon cable from the board, i heard the hard drive power up....
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#10
Doby

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Doby, thanks for your get-back. i took th mb out and tried to power up....same thing.....nothing, however, when mb was in the case, or out, when i disconnected the hard drive ribbon cable from the board, i heard the hard drive power up....


When you did this did any fans on the motherboard spin?
The hdd will because its getting power from the psu witch would mean the psu at least turns on.
I would say bad motherboard if nothing on the motherboard powers up
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#11
without_reason

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hi, no fans on motherboard came on, and i agree i think the mb is dead. i contacted the supplier and they are going to replace it.

thanks for your help
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#12
Doby

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Your welcome and please let us know how you make out with the new board
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#13
nightwing2011

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Hey, i need help finding what motherboard to upgrade my computer for. Its a emachinges D2685, i dont know what ones i need, but i need a new graphics card and this motherboard dosen't allow that. it would be nice if it was cheap, but it dosen't have to be, please help.
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