Been at it for 8 hours and eventually stumbled across this" Your system supports DDR3 unbuffered ECC DIMMs (ECC UDIMMs), registered DIMMs (RDIMMs), and load reduced DIMMs (LRDIMMs). It supports DDR3 and DDR3L voltage specifications. DDR3 runs on 1.5v, DDR3L runs on 1.35v and 1.5v. DO NOT MIX VOLTAGES "So you cant mix DDR3 and DDR3L together,  just my luck lolWell i have another server en route anyway with 128gb of ram,  unsure what as it just said 128gb ram on the listing, so will wait and see if its the same and if it is it will go in the new server and if it isnt, then probs just remove the accompaying modules and replace with the 12800R.
Hello All,First time poster here,I purchased a R720 on ebay with the following specs :   Dell R720 - 16 SFF - 2x E5-2690, 8 Core - 192GB - H710 - 2x 1100W - 8x 1TB HDDAll was working as it should,  i then purchased another 192GB of ram and am now having issues.The original memory that came with the server is :16GB 2Rx4 PC3 - 12800R - 11 - 11 - E2 - D3   ( 12 modules )[IMAGE]Original Memory  I sent that image to an ebay seller and asked " looking for best price for 12 x 16gb ( 192gb total ) sticks of Samsung pc3-12800R 11 11 e2 d3 ram the same as / compatiable with the one in pic attached please. ",he replied" Hi, £5 each is best what we can do "   Obviously i thought bargain!! im doubling up my ram for only £60  ( plus £14 post n packing )Well the memory arrived ( see pic below ) [IMAGE] As you can see.When i installed the new modules, the server refused to boot and just kept sticking on the Configuring memory screen,ending up taking them out and leaving just the original 12 modules in and the server booted up fine without issues.I then took out the original modules and installed just the new modules in their place and again i am stuck on the configuring memory screen.Are they damaged modules, or incompatiable or something or do i need to change a setting in the bios The codes on the both are as follows:Original : 16GB 2Rx4 PC3-12800R-11-11-E2-DE  CODE M393B2G70BH0-CK0    1221 New       : 16GB 2Rx4 PC3-12800R-11-11-E2-P2  CODE M393B2G70BH0-CK0Q9    M 1240   Is there any hope of getting these two to run together?    are the new ones faulty?   am i a philbert?  ( dont answer that one lol )   i assume its my error and not the fault of the seller?  I did ask for the same or compatiable ones, should i ask for my money back?any ideas please?
Memory issue