+ 0 Votes Possibly shorted transistor or capacitor maybe? wizard57m-cnet Moderator 2 years ago Just a guess, maybe something on the case has warped, bent, etc. and is shorting across the DIMM controller or something. + 0 Votes Swap the proc? IcebergTitanic 2 years ago I don't know about that particular system but some newer systems are using the Processor as the memory controller. On servers at least, when you have issues like that you swap out the processor and see if the problems go away. + 0 Votes Logically robo_dev 2 years ago if you've basically swapped memory and system board, then something else is wrong. Did the Tech swap the processor? The other variable is the power supply. Maybe a wild guess, but I know that Dell uses what are called 'active PFC' power supplies on some models. These PSUs do not play well with a UPS, for example...you need a 'real' true-sine-wave UPS to run one of these units. While some new technology is really great, these new power supplies can die a horrible death if they are fed a pseudo-sinusoidal input power signal (the stepped approximation of a sine wave provided by many normal UPS units). + 0 Votes BIOS Merlin the Wiz 2 years ago This problem sounds like a mis-match between the BIOS and the embedded pre-CPU controller firmware. I check for and update the BIOS. After reading all of the notes available on the changes made to the BIOS. With todays motherboard designs, I doubt if the CPU has not initialized when you get this error. Particularly since pressing the power on/off button causes the error to step from one memory slot to another. The motherboard manufacturer (not Dell) may have a flash firmware fix for this problem, but finding the manufacturer may cost more in time than the whole computer is worth. I ahva seen similar problems due to defective surface mount capacitors. Good Luck! + 0 Votes Swap the proc? IcebergTitanic 2 years ago I don't know about that particular system but some newer systems are using the Processor as the memory controller. On servers at least, when you have issues like that you swap out the processor and see if the problems go away.