Dell Dimension 8400 won't turn-on/respond after having problems

Dell Dimension 8400 PC"s use either Broadcom Extreme Ethernet controllers OR, on SOME models of the 8400 that do NOT have ON-board Ethernet connections, SMC Networks Ethernet Drivers. I've seen MANY a Dell Dimension.

Hello Download drivers here at dell:

http://www.dell.com/support/drivers/us/en/19/Product/dimension-8400

The drivers can be downloaded one by one.

You maybe need to unzip the file before you install.

Here is only drivers for win xp.

You can`t download a setup disk but you can call dell support
to order the software from them (if they still have it) by the service tag.

Good luck

An Amber blinking power button indicates a low voltage problem. This can be caused by a defective power supply or a defective motherboard. Since you replaced the power supply, my guess is that the motherboard has a problem.
Just to make sure that nothing else is causing the problem, remove any PCI cards like modem, video card, sound card, etc... Remove the memory modules and disconnect cables to CD/DVD drives. Look at the USB ports to see if any are damaged.

Sounds like you might have a Bad Processor, Take it to a shop, don't tryh to fix this one yourself

Hello here from dell:

http://www.dell.com/support/drivers/us/en/19/Product/dimension-8400

Good luck

Generally and indication of a software issue that is locking the system. There can be hardware causes too.

1. Run diags on the system (From Resource CD or F12 menu) see if any failure. If you have a hardware failure then address it and see if the problem is solved.
2. Update bios and drivers from support.dell.com
3. Edit MSCONFIG, startup group, remove entries that are not required (Generally only AV and printer scanner items are needed here, most other items will function without and item here)
4. Edit the Virtual Memory settings, and set it to Custom and an amount double the RAM (EG: 4 GB RAM set initial and Mas to 8200 MB VRAM)
   

no man try to take out the modem ( last pci slot on the botom of the board) and see if you have any luck if not you going to need a new motherboard thanks and good luck

Might be a hard drive issue. I had the same problem with one of My desktops. I replaced the hard drive and it worked fine.

Below is a link to the beep and light codes for a Dimension 8400. Check your codes and reply back if you need further assistance.

http://support.dell.com/support/edocs/systems/dim8400/SM/adtshoot.htm

IT MEANS that the processor is not getting cooled enough, try turning on the comptuer with the side panel open, dont reseat the cooling tower, however also check for the four lights on the back of the tower and post the same,,