A client of mine has an e-systems desktop with an Intel® Desktop Board D915GAG.
He has just upgraded the memory by adding two sticks of crucial 512 mb Pc3200 memory to the existing pair of 256mb PC 3200 samsungs. When he turned it on, it hung with the screen "Saying something about Press R and some other stuff". He turned the machine off and since then it has refused to accept any memory of any speed producing the classic three beeps every time it is turned on.So i reset the bios using both the jumpers and removing the battery & power cable and went back to the original pair of sticks - no joy. I have tried every combination of ram in every slot and checked each stick in another computer to validate it. Even tried putting a good stick of PC 2100 in to see if it had forgotten about PC3200 ram. I had been tearing my hair out because i could not see any way that it should not have been working until I went back through the sequence of events came up with the following theory.
It is definitely not the ram or the slots which means that i think it has to be a bios problem. My theory is now that he has corrupted the bios by turning the machine off during the reset process for the extra memory. We now have a lovely situation - the bios is now corrupt and needs replacing. Intel have kindly provided a jumper with three positions - 1)normal - 2)reset and go directly into startup screen - 3)one that allows you to re -flash the bios directly from a floppy before even loading the video driver. Only problem is that they haven't included a slot on the board for a floppy cable. obviously no way of getting into setup to set the boot from a cd and not sure if that would work anyway.
Any suggestions other than consigning the board to the bin?