Problems with startup.

I've tried just about everything. I have a Compaq Presario CQ5110F 4GB RAM DDR2. AMD Athlon Dual Core.

Problem description:
More than a week ago my computer upon being shut down (via shut down in start menu) would not start up after a few minutes of waiting. The problem being that the monitor, keyboard, and mouse all unresponsive. I've read through thousands of threads, fixes, solutions and all are not working anymore. By this I mean the first time it happened I just reset my power surge and started up my computer and it worked fine and dandy. The second time (happened just a few days after) my computer was stuck and once again the same problem. Reseated RAM, GFX Card, everything. Turned out that we just hold down the power button for ~4 seconds and it would turn on (Meaning it was stuck in hibernation.).

Right after I got it working this time, I reinstalled Windows 7 and things looked bright for me. Sadly however the problem remained and so I tried unplugging the power chord and holding it down for ~30 seconds to drain any power, and plugged it in and started er up and it took roughly 10 minutes for it to show any type of response, even though fans are working. So I figured I'd just give my computer time to start up but now it's not even working.

There is an update for Nvidia chipsets that can cause major problems and usbs to be unresponsive so I'm wondering if its that, I want to install it to give it a try, but first I need my computer running and responsive, any ideas?

tl;dr

computer stuck/hangs on startup, no beep codes, problem only occurring a week ago. Completely functionally when it is up and running.

First of what exactly is the problem....

I mean does you computer start when u press the power button..... or is it after you start... while windows is loading that the computer is unresponsive...??

Computer starts but monitor, keyboard, and mouse all don't work. Black screen. Led light on power button lights up blue which is normal but the light next to it stays amber which is not normal. Fans stay on for a few seconds upon start but shut off within a few seconds and the computer just hangs.

I updated all that I could based off my memory. The computer won't start up or else I could use speccy.

Something to note my psu light is on and power is being sent to my computer. I just reinstalled windows 7 as well around for days.

Hmm

Are you able to get into BIOS ??? if so could you reset it to defaults and start

If that doesn't help... open the computer and remove the CMOS battery and put it back in after a min or two. Then start the computer.....

Hi Karl

Would you care to explain why he shouldn't do it..

In any he has already told us he is unable to boot.... ans his peripheral are stuck.. so the best is to atleast get everything to defaults..

I removed the cmos battery one of the first times this problem occurred and no relief. Cannot get into bios out all. Monitor is bkack, all cables checked. Keyboard lights up for a second than 'shut' off. Mouse led at the bottom of three mouse no light at all. Bios version was Phoenix tech 3.59 I think 2009 edition. My capacitors all look fine. Fans aren't really dusty.

The only thing that seems to work is pulling the power chord and holding the power button for the 30s and putting the chord back in and powering on. And holding the power button for 4s

May I note this no longer works. Kinda stumped on what it could be. Wanna know where three problem is so I can get a replacement part asap.