Thanks for replying. Can't flash the bios as machine wont boot and bios IC is soldered to the board. I have processed about 200 of these units in the last month and have a known good test bed. I think it may be to do with the board not sensing PSU voltages correctly on switch on - I am still working on it.
Dell are not very forth coming with any info, here in the uk. The boards are all the same made by foxconn Various Dell p/n's CG815 / DG389 / G8310 ... etc but all the same thing.
I use 100 of these type Dells in my lab.
Can you get a bootable BIOS floppy and orCD disk and flash that way?
This is where I go to get around it. http://www.bay-wolf.com/bootcd-bios.htm
go here and they will instruct you on how to do it.
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Dell GX280 has been known to have issues with mother board because of bad capacitors that were sent out in them at that time. I have had so many issues with them when i working as an it. If you can open up your pc and look on mother board for expanded capacitors or even leaking. if they are not round it means that is the problem. Dells are very easy to open. On top and bottom there are kinda buttons u can press and just open towards the side that has lock for like locker lock and look inside.
can download the software you will not have the correct for OS or video card can
driver you need is to update its drivers. hopefully you understand it and help you / me to you.thanks to trust you..Good luck
when the pc in post usually on dells bios there is a boot menu option it is usually f12 if you don't know what your doing in the bios it is not a good place to test your skills after pressing F12 just choose cd rom for boot
An Amber blinking power button indicates a low voltage problem. This can be caused by a defective power supply or a defective motherboard. 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. Your responses are intended to improve the level of service provided. Please show your appreciation by rating your experience. Thank You.