this is my first time posting EVER. so be gentle. i go in my room today and my computer (emachines T2865) is turned off, which it has randomly been doing the past 3 days. monitor is on (emachines E15T) with it looks to be a frozen still of the screen saver, just the black one with the windows logo usually flying around. but the screen again frozen, and in what should be black is little lines of red which look to be moving, first time i've ever seen it. so i click on the mouse, still frozen, and then i try rebooting. monitor shoes a "no input signal" message, normal when the computer is off. so i try and power it up, fans on, computer sounds good, i'm just waiting for an image and still the no input signal.

things i've done:
- checked connections: no changes
- unplugged 3rd party hardware: no changes
- power cycled: no changes
- blew out the dust from inside the tower: no changes
* after blowing out, plugged computer in and it started automatically and now i cannot turn the computer off/on by the power button at all, it just works by plugging it in/out?
- plugged in a known working monitor 2, it didn't display any picture
- installed another compatible video card: no changes, tested with monitor 2.

hmmm, so i'm tapped out. hope this isn't too confusing to anyone. i saw something about resetting CMOS? if so can someone help me with this process, or whatever troubleshooting needed.

specs:
CPU: AMD Athlon™ XP 2800+ Processor (2.083GHz) with QuantiSpeed™ architecture
Operating System: Genuine Microsoft® Windows® XP Home
Chipset: NVIDIA® nForce™2
Memory: 512MB DDR (PC 2700)
Hard Drive: 160GB HDD
Optical Drive: DVD ± RW Drive (Write Max: 4x DVD±R, 2.4x DVD+RW, 2x DVD-RW, 16x CD-R and 10x CD-RW disks, Reads 12x Max. DVD-ROM disks, Reads 40x Max. CD-ROM disks); 48x Max. CD-ROM Drive; 3.5" 1.44MB FDD; 8-in-1 Media Reader(USB 2.0, Secure Digital™ (SD), Smart Media, Compact Flash, Memory Stick®, Memory Stick PRO, Micro Drive, Multimedia Card)
Video: NVIDIA® GeForce®4™ MX graphics (1 AGP 8x slot available)
Sound: nForce™ 6-channel Audio
Network: 10/100Mbps built-in Ethernet
Modem: 56K ITU v.92-ready Fax/Modem
Peripherals: Premium Plus Multimedia Keyboard, 2-Button Wheel Mouse, Amplified Stereo Speakers
Ports/Other: 5 USB 2.0 ports (4 in back; 1 in Media Reader), 1 Serial, 1 Parallel, 2 PS/2, Audio-In & Out
Dimensions: 7.25"W x 14.125"H x 16"D

-erika

Hello keeptruthalive,

Welcome to PCHF. Sorry for the delay.

Can you check to make sure there is no cables from the front of unit to the motherboard hanging loose anywhere? It may have come free when your your blow out!



Also, do your have onboard VGA, or does your VGA card fit into ^ one of these PCI slots? If it does, try removing the card, and gently place the card back in.

everything looks to be in place and connected. my video card is on board although i had a random in working condition VGA that my dad and i also tried plugging in. i'm thinking a new power supply? you tell me. thanks for the input. tell me more!

erika

Does your PC beep when you turn it on?