power supply

September 14, 2009 at 14:50:57
Specs: Windows XP
turn power on monitor says self test check your PC monitor is working

then power saving enable monitor power will shut down

is the power supply bad???

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September 14, 2009 at 17:47:57
not enough info.

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September 15, 2009 at 06:07:33
this is an emachine T3092 when I turn the computer on the monitor screen says

self test g
check your pc tr
monitor is working b

i turn it off then turn it on again and get the same message on the screen

every once in a while the e will come up and i have been able to get it up in safe mode.

before i can do any thing the monitor reads

power saving enable the monitor will shut down in a few seconds

i run windows xp
i am also computer dumb

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September 15, 2009 at 09:10:30
The message is probably being generated by the monitor, not the computer. You may get the same message when you have disconnected the monitor from the computer.

emachines computers are well known to have el-cheapo power supplies that tend to fail more often than average, and when the power supply fails completely, they are a lot more likely than average to damage something else, often the mboard.
This is especially the case if it's a BESTEC power supply!!

If you have not been fiddling inside the computer case just before this happened and have not changed the ram installed in it, it is very likely that if you replace the power supply BEFORE it fails completely, doing that will restore your system to working again.

If the PS has not failed completely yet, the power led and hd activity led may light up, fans and hard drives may spin, yet the computer won't boot normally and you may get no video from the computer - the led on the monitor will be it's standby color - e.g. yellow or orange rather than green or red.

If you see no leds light up, hear no fans or hard drive spinning, assuming the computer is receiving AC power and the switch on the PS is in the ON position if it has a switch, the PS is completely dead.

Unplug the cord to the computer, or otherwise switch off the AC power to it, open up the computer case, and find the label on the power supply - if the brand is BESTEC I advise you, if you find ANY indication the power supply might be in the process of failing, DO NOT trying booting the computer anymore - if the PS fails completely there is a strong likelyhood it will trash your mboard!!!!

Failing power supplies are common and can cause your symptoms.
They often partially work, fans and hard drives may spin, leds may come on, yet you may get no video and the mboard will not boot all the way.
Check your PS.
See response 4 in this:

DO NOT replace the power supply with another BESTEC one!
In most cases you can replace it with a standard sized standard ATX power supply.

Standard (PS/2) power supply size - 86mm high, 150mm wide, 140mm deep, or 3 3/8" h x 5 7/8" w x 5 1/2" d , or very close to that, though the depth can be more or less for some PSs.

Don't buy an el-cheapo PS.
See response 3 in this:

Your power supply must have at least the minimum capacity required to support a system with the graphics card you are using installed, or the max graphics card you might install in the future.
(Onboard video - video built into the mboard - IS NOT A CARD!)
You can go to the video card maker's web site and look up the specs for the model - often under system requirements - the minimum PS wattage, and, more important, the minimum amperage the PS must supply at 12v is stated. If you don't find that, any card with the same video chipset including any letters after the model number has very similar minimum PS requirements.
Some power supplies have more than one +12v amperage rating - in that case you add the rated max amperages to determine the total +12v amperage rating.

If the PS is completely dead, the mboard may have been damaged, especially likely if the PS is BESTEC, and in that case replacing the power supply will not restore the system to working again.
For that reason, if you can borrow a used PS to try with your system, try that before buying one.

At that point, if the system still won't work normally, you may want to get yourself another computer .

But - if you replace the mboard, the system will probably wont fine again.
You can probably buy the same mboard for it used off the web for a reasonable price, The chances are very good nothing other than the mboard is damaged.
HOWEVER - make sure the ad says the mboard has been tested and found to work!
It's best to get the same mboard that was in an emachines system, that has an emachines bios version, because if you get one with a different brand's bios version, you may NOT be able to do the emachines recovery procedure to restore the original contents of the hard drive for your model with (a) Recovery disk(s) meant for that - the program may quit if the bios version is not an emachines version.

You can look up which mboard you need here:

If the computer works okay after it has had a chance to cool down and you then boot it, and it works okay for a while after that, then shuts off automatically , your cpu may be overheating.

If the cpu fan/heatsink has mung (dust, lint, etc.) on it, clean it off, but DO NOT use a vaccuum cleaner to do that (they produce a tremendous amount of static electricity when running, and anything connected to them can discharge that to your components) - use canned air, or an air nozzle if you have access to an air compressor, or an artist's brush that can be used in small spaces, etc. It may be difficult to clean the top of the heatsink under the cpu fan - the most likely place to have mung on it - and the bottom side of the cpu fan blades unless you remove the fan. If you have a case fan, clean that too if it needs it.

With the cover still off, restore the AC power, start the computer and make sure the cpu fan spins
- if it doesn't spin, if you're sure the power supply is working okay, don't use the computer until you have found out why it doesn't spin (see next below).
- if it doesn't spin, if you're sure the power supply is working okay, don't use the computer until you have replaced it.
If it spins too slowly, and/or if it makes rattling or screeching noises, most likely to be noticed when the computer has cooled to room temp, has not been used for a while, and then is started up, the cpu fan's bearings are failing - replace it as soon as you can.

There's usually nothing wrong with the processor - cpu - unless the cpu fan failed.

If the cpu fan does not spin,
- if it's blade moves easily when you try to spin it with your finger, there may be nothing wrong with it. Try removing it and connecting it to another desktop mboard's 3 pin header for a case or power supply fan - if it spins, your processor is probably okay - if it doesn't spin your processor MAY be burnt out.
- if the cpu fan is difficult or impossible to spin when you try to spin it with your finger, your processor is probably burnt out.

Pictures of blown capacitors, other components - power supplies, Athlon cpu's, etc.:

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