R710 memory failure

Have Samsung R710 originally supplied with Vista Home Premium x32. Upgraded to Win 7 x64 as clean installation. All works OK with original 3Gb RAM. but when I try to increase to 4Gb Windows will not load . Have done all the standard Startup and Memory checks, added new drivers ,etc. Have tried to update the BIOS using Samsung upgrade. It won't work. Have tried support vendor for BIOS upgrade- no luck. Can anyone help or am I stuck with
3 Gb ?

 

Please clarify: Does the computer boot into the BIOS with the 4GB RAM but then Windows does not start?

Did you check the new 2GB RAM module in another computer?

John

 

Thanks John . Computer does boot but then Windows won't start, just reboots to a "failed to start" screen. Don't have another computer to test new memory but have two new matched sticks and they give no errors on check using windows installation disc. The computer will run on 4Gb in safe mode.Both memory sticks alone in either slot as a 2Gb system also seem to work OK in normal mode.

 

OK. This definitely looks like a Windows problem. Have a look here or here.

John

 

. Thanks again. Started Computer in safe mode with 2x2Gb new DDR3 sticks., went back to previous restore point, inserted Win disc, rebooted and did a startup repair. Bingo! this worked. Unfortunately when I tried to restart later after shutdown I was back to square 1! Contacted Samsung Support who insist that my note book should have DDR2 - yet inside the RAM compartment as plain as plain can be it says "DDR3 ONLY". I'm beginning to despair !

 

DDR2 won't fit into a DDR3 socket or vice versa, so that suggestion is irrelevant.

The problem is with Windows 7. It seems to be an obscure problem particularly if the Windows 7 startup repair won't fix it.

John

 

The RAM originally supplied with this machine is apparently now obsolete but I've managed to track some down on eBay and have ordered it so there should be no doubt whatsoever that it's suitable. My machine works OK on the original 3Gb but I'm determined to achieve the extension to 4Gb. Will be a few days before I get the new RAM. Many thanks for your support - will let you Know how it goes in due course.

 

Update 23 Feb. Computer still would not load Windows with 4Gb. Got on to Samsung again and now they tell me that motherboard will only support 3Gb - not what it "Said on the label" when I bought it but at least I now have explanation for my problem. I note that there are vendors still selling this model and stating that it will take up to 4Gb!

 

That's unusual. The Intel chipset will support 4GB or 8GB so Samsung must have put a limit in the BIOS for no obvious reason. Either that or they have taken the easy way out and said that your 3GB limit is by design.

John