Troubleshooting & Support
Problems & Solutions
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No power when I switch
If you know the receptacles that you have plugged the computer into, indeed have power, I would suggest you diagnose the Power On switch,...
easycoustic- Apr 3, 2011
- 351 Views
- 3 Solutions
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The computer just shuts off after awhile. I unplug
Does sound like an overheating problem but can also mean that some "wired" connection, when it warms up, is not making a full...
fheg525- Dec 9, 2010
- 164 Views
- 2 Solutions
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computer has bestec atx-300-12e power supply. it
Actually no, the power does continually comes in but, when stopped, the PS is in a state that could be assimilated to stand-by - only a...
johnmeubanks- Jun 23, 2010
- 245 Views
- 1 Solution
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Please Help! I THINK I have a bad power supply (a
First, If you know how to use a meter proceed. If not use caution when checking around the input as most run 400VDC Bulk at the large Cap...
whitehath4x0- Feb 23, 2010
- 500 Views
- 2 Solutions
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Can an ATX-300-12E be used in place of an
I think it wont be a problem as long as both pwoer supplies are of same type e.g both supplies are for P4 sytems
halst22- Feb 11, 2010
- 268 Views
- 1 Solution
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flashing green light on back of power supply no
You can check the power supply independently. First you unplug all the devices,like hard disk, cdrom, FDD, card reader and any other device...
mment1- Jan 28, 2010
- 735 Views
- 1 Solution
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i think the power supply is bad. the light on the
No i don't think the power supply gone bad, as your decription says light on the front side is yellow and all the fans are running. This...
mercerlw- Dec 26, 2009
- 346 Views
- 1 Solution
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kept trying to start windows then would shut off.
gordonmic403 your very brief statement about your computer sounds like a power supply problem. I would suggest testing and / or replacing...
gordonmic403- Nov 26, 2009
- 206 Views
- 1 Solution
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upgrade for Bestec ATX 300 12E
Hipro- HP-P3527F3W is the replacement for Bestec 300W
sspillman- Dec 11, 2008
- 1034 Views
- 2 Solutions
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PC turns on...but no display. Monitor and cable
I fully agree with you. Capacitors have gone bad in the power supply. This causes a weak power rail. Enough power to spin fans, and light-...
- ruhrow
- Nov 10, 2009
- 380 Views
- 1 Solution
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i removed all the connections on my 3210 emachines
You can connect the power connector to the corresponding sockets. It wont make any problem if it is changed one another. Only thing you have...
- ferngo
- Jun 27, 2009
- 241 Views
- 2 Solutions
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my computer won't turn on
I would like to know how to replace the fuse in the emachine power supply? Just what the fuse look like?
mrtelephone- Aug 1, 2008
- 265 Views
- 2 Solutions
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Power Supply Bestec ATX-300-12EB3- Rev: s4(S)...
yes if you can get the side plates unscrewed and the backplate plate uncrewed then the sides should lift off of the power supply now if you...
pastor_ro- Aug 23, 2008
- 531 Views
- 1 Solution
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New power supply problem
try to run it with out the memory and see if you have the right kind, put one stick in and try that, if still does not work, then you must...
- johng2008
- Dec 25, 2007
- 43 Views
- 1 Solution
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no power no fan
check the power outlet, try swapping power cord with the monitor power cable. if still no power, try disconnecting power to...
environcc_pr- Aug 3, 2010
- 11 Views
- 1 Solution
Tips & How Tos
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Unsolved Problems
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What are the differences between:
What are the differences between: atx-300-12e Rev.D, atx-300-12e Rev.DR, and atx-300-12e Rev.D1R ? I am trying to...
herman877- Jul 21, 2011
- 27 Views
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the on and off button doesn't work I removed...
the on and off button doesn't work I removed the wires at the back the colors are bl/wh,gr/white, and rd/wh. I don't...
- rsamora60
- Feb 1, 2011
- 22 Views
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Hello, what's the difference between
Hello, what's the difference between Bestec ATX-300-12EB3 Rev.S2 and the same but Rev.S2R? The first one (I got) is...
- rzulaika
- Nov 17, 2010
- 53 Views
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power supple fan runs when power button depressed.
power supple fan runs when power button depressed. drives run cpu fan attached to motherboard runs. no other signs of...
- richardburr
- Jun 16, 2010
- 23 Views
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flashing greenlight on power supply
flashing greenlight on power supply, I performed the steps described, while thepower supply is on unplug the main 20pin...
- magicgreg631
- Jan 4, 2010
- 141 Views
Manuals & Guides
TopDo you have a manual for E-Machines Bestec ATX-300-12E Rev. D 300w E-Machine GTW Power Supply Part 100929 (ATX30012E) Power Supply? - Upload it to FixYa!
Upload a manual for E-Machines Bestec ATX-300-12E Rev. D 300w E-Machine GTW Power Supply Part 100929 (ATX30012E) Power Supply
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