dell dimension 4700 Help Please

[dannaswolcott]

I went to power on my dell dimension 4700. I powered it on, It booted to the welcome screen. I forgot the password so i rebooted it and went in to safe mode, The system rebooted half way into safe mode then the system locked up. I pressed the power button for 7sec powered it off, waited 30 sec, then powered it back on. When i powered it back on, the fans were on high and i got no video. I powered off the unit and unplugged it, reset the bios and still, I get no video but I do hear the fans spinning high. What can be the problem? Please post your thoughts! Thanks in advance!

 

[dannaswolcott]

Update: A C D are green, B is orange/amber on the back of the computer when you power it on.

 

[porterjw]

Clear CMOS to start fresh (Unplug PSU and press power button to discharge capacitors, then remove MoBo power connectors and pull the battery). You briefly mentioned BIOS before - can you see the BIOS screens? If so, the physical video card should be fine. Make sure all connections are seated properly and try a reboot.

 

[dannaswolcott]

I have did all that, no help... I was able to get it to come on one time after resetting the bios, I went to power it off, then power it back on to make sure it was working and it happened again. What else can i try?

 

[oscaryu1]

Take out one stick of RAM at a time, power on each time.

 

[dannaswolcott]

Did that to...... Looks like the computer is dead right? Or is there anything else i can do?

 

[just a noob]

if its a desktop and you can get into bios, atleast on my computer i think you can disable admin passwords if thats what your talking about, otherwise i have no ideas

 

[dannaswolcott]

no its a desktop, I cant even get in to the bios, I have reset the cmos battery & reset the cmos jumper.... no help...

 

[larryf215]

pull the cables to everything, HD, cd's , floppy etc....
pull all pci cards. if you have integrated graphics, pull the graphics card.
try and get into the bios. report back. while you are there, look at the capacitors, on the board.
Any of them swollen, or buldging??

 

[dannaswolcott]

Board looks fine, I am going to pull all the cables now and ill report back... I have integrated video,

 

[dannaswolcott]

I pooped out the CPU and reset the bios.. no help.... Unplugged all the IDE and SATA cables, No help... The heat sink gets warm so i know the CPU is getting power...

 

[dannaswolcott]

Can it be the board? Is there a way to remove the bios chip from this board and re insert it? Can it be dust around some chip?

 

[dannaswolcott]

Am wondering what can be causing this? Is it the CPU?

 

[oscaryu1]

Does your board have onboard? If so, take out your GFX and try using onboard/switching GFX's.

 

[dannaswolcott]

Does your board have onboard? If so, take out your GFX and try using onboard/switching GFX's.

I dont understand what you mean. Yes its on board. What do i have to take out?

 

[2048Megabytes]

If you have an onboard video card with your motherboard you can try to buy another video card or borrow one that works and try it out in your PCI-Express X16 slot.

Just for troubleshooting purposes I would try switching outlets or testing the outlet that you're system is currently plugged into.

 

[dannaswolcott]

Nope, thats not working.... I have a feeling that this computer is dead.....

 

[dannaswolcott]

so is it time to take a 400LB sledge to it?