ok i dont know how to exactly say this but il try my best ok my problem is that when i hit the button to turn my pc instead of becoming green and starting it turn a redish orange color and it stays that way and it wont turn on ive tried everything it stays like it was off it has no cds in it and the mouse and the keyboard dont work but interesting enough the pc is usin internet ? please someone help me =(

How do you know it is using the Internet? If the computer is not booting, it is not using the Internet. If you have a router, it may see the network card and be trying to communicate with it.

Do you hear any beeps? Do fans spin up? Do you hear drives motors spinning?

ok i do have a router and the # it uses its on but it doesn't blink so now that i looked at it better i doubt its using internet and yea when i turn it sounds as it turns on but am not hearing the fan or any of those clicks and beeps

Then it sounds like your power supply failed. Most computer shops will test it for a small charge, or even for free.

I keep a FrozenCPU Ultimate PSU Tester in my travel tool bag. It is not as good as a qualified technician testing the power supply unit (PSU) under a "true" (realistic) load with an oscilloscope or power analyzer, but close. The advantage of this model is that it has an LCD readout of the voltage. With an actual voltage readout, you can better detect a "failing" PSU, or one barely within specified tolerances. Lesser models use LEDs to indicate the voltage is just within some "range". These are less informative, considerably cheaper, but still useful for detecting PSUs that have already "failed". Newegg has several testers to choose from. All these testers contain a "dummy load" to fool the PSU into thinking it is connected to a motherboard, and therefore allows the PSU to power on, if able, without being attached to a motherboard - great for testing fans, but again, not a true load. Alternatively, you can swap out the PSU with a known good one that meets the computer's power requirements. I do not recommend using a multimeter. To do it properly, that is, under a realistic load, the voltages on all the pins must be measured while the connector is attached to the motherboard. This then requires poking (with some considerable force) two, hard and sharp, highly conductive, meter probes into the heart of the computer. One tiny slip can destroy the motherboard, and everything plugged into it.

Use the eXtreme PSU Calculator Lite to determine your power supply unit (PSU) requirements. Plug in all the hardware you think you might have in 2 or 3 years (extra drives, bigger or 2nd video card, more RAM, etc.). Be sure to read and heed the notes at the bottom. I recommend you set Capacitor Aging to 30%, and if you participate in distributive computing projects (e.g. BOINC or Folding@Home), I recommend setting TDP to 100%. Research your video card and pay particular attention to the power supply requirements for your card listed on your video card maker's website. Then look for power supply brands listed under the "Good" column of PC Mechanic's PSU Reference List. Ensure the supplied amperage on the +12V rails of your chosen PSU meets the requirements of your video card. Don't try to save a few dollars by getting a cheap supply. Digital electronics, including CPUs, RAM, and today's advanced graphics cards, need clean, stable power. A good, well chosen supply will provide years of service and upgrade wiggle room. I strongly recommend you pick a supply with an efficiency rating equal to, or greater than 80%. Look for the 80 Plus - EnergyStar Compliant label. And don't forget to budget for a good UPS with AVR (automatic voltage regulation).

Ok man thanks i appreciate the help........... but theres one little problem my pc is a dimension 9150 dell so i cant open it but still appreciate the help though =)

but theres one little problem my pc is a dimension 9150 dell so i cant open it

Huh? Why can't you open it?

Did you look in the 9150 Manual, under Removing the Computer Cover?

is not that i cant open it its that if i do open it i might destroy the sticker inside and lose the insurance

My pc wont turn on and weavenot eve the bios screen will come up and the screen is saying no signal checked everything but we don't know how to check the power supply

ok my pc turns on the ups the processor everything is working fine but it wont boot up my screen is looking for signal and my mouse and keyboard don't work i seriously have no idea whats wrong with it can anyone help please

PSU Tester

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FrozenCPU ATX 2.0 Ultimate LCD Power Supply Tester (20/24 pin ATX, SATA, P4, Xeon, PCI-E, Floppy, 4 pin) - FrozenCPU.com