Go into your BIOS and change the boot order to just HDD.

The no sync see if there is a driver for the monitor.

Without a XP install disc not recovery you won't be able to get to recovery console.

To get into the BIOS on a HP as it boots hit F1. Are you hearing any beeps as it boots?
If the system has been getting that hot may have already damaged the CPU. Pull the heat sink and fan clean the...

If it will run in Safe Mode then it sounds like a driver problem. But I seen where you posted somewhere else you D\L all the drivers. Did you go into BIOS and load system defaults? also seeing if...

Try what rapture posted then go to Start - Run Type Msconfig go to startup tab uncheck anything you don't need running like quick time,word and such if not for sure check this site.
...

Something isn't right with it. Could be that you got a bad video card it shouldn't be giving that much trouble. If you took the video drivers out under safe mode and reinstalled them this shouldn't...

How much system memory you have?

If that driver didn't work reinstall the one that came with it.

Take the NVidia out and install the one i posted the link to.sounds like you either loaded wrong driver or loaded one of each.the link i posted is to your video card.

Well first you only want one Anti virus on your PC as far as adware and spyware put all you want.

Second when possible stay away from ATI cards get NVidia chip video cards.

Go here and download...

Sounds almost as if the monitor may be bad.Try hooking a a PC monitor to it.

If you have a video card where the monitor plugs in.just take the side cover off and push in on the card.might want to take it out then put it back in.

I just recently had one come into my shop that the PS2's shorted over the +5vsb being high then it shorted the usb's.could try a usb first though take the ps2 and check it on another system make sure...

Try another keyboard.Also bootup hitting F8 and then select Last known configuration.

a) Can someone explain what the "RGB Signal" is and whether the monitor could be the problem.

Short for red, green, blue monitor, a monitor that requires separate signals for each of the three...

The Laptop will run with the AC Adaptor and the battery out. If the battery needs a charge it will send it a charge till fully charged then quit. If not it would kill the battery. Kind of like...

What kind of mobo is this?

As long as the power is plugged in from the button it is all you need the leds just let's you know they are working.try turning the power leads from the button around switching sides.Know what i mean?

So let's see what we got.

1.Power supply was illiminated.

2.The video card you put in was a known working video card.Nothing.

3.monitor works.

4.Not hdd.

Check the harddrive might have took it out during the short.

One thing about a brand name computers is they load it down with a lot of useless software.I always first thing is format and reinstall my own windows but I know most don't have there own copy.
...

Don't use a 30 watt soldering iron either get a 15.Thought i would add that.

Look on the bottom of the laptop and see what the service tag # is and go to dells site or post the # and i will find them.

Go to dells web site and get your drivers you will have to have the service tag # on the bottom.

You need to get the chipset driver maybe Bios update.

The reason it isn't working is you don't...

getting the latest BIOS update and video update.

Tell me the name of the computer like my laptop is a DELL Inspiron 1200.

Also Do you have a video card or is the video built on motherboard.

Download this and run it and post what it says.

well make it cd then hdd then floppy then network.

Tell me the name and such of the machine and what kind of graphics you have.like is it ATI or nvidia or intel.

Change the boot to just cd then HDD.

If the laptop won't charge battery with AC adaptor plugged in nor run with adaptor sounds like the adaptor is bad.plug it in and take a multi meter and test the ac adaptor for current.

One of 2 things may cause this power switch or power supply.

LOL felt that way many of times.

I still think it's either your CPU is breaking down or your mother board is going bad.

Have you tried running the machine with bare minumum hardware.

What you will need to do is take your XP disc and copy the i386 folder to the your root drive.

then let the computer know where it is.

Here's how: (type

regedit in the Run box on the start...

That 430 is big enough.

I think it a CPU or motherboard issue.it did it before you replace the graphics and before you replaced the psu.now it is still doing the same.

you could do this as well...

Keep us informed.

Check out this board.

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=1943172&Tab=2&NoMapp=0

If you do go with a mobo and cpu combo get a newer board.the newer amd's if you like them doesn't run as hot as a Pentium 4.

Sounds like a problem i had with a compaq a couple of years back.it would randomly freeze either running something or sitting didn't matter.i put a new PSU new CPU a heatsink and fan rated higher...

Well freezing is normally due to CPU overheating or hardware filure.clean it but if it doesn't run like it should you need to replace it.

the fan is regulated by the BIOS if a certain temp is detected it kicks it on.

How much memory do you have?

The reason i ask this is 128 is minumum which that means it will run windows XP but...