I have ordered and bought two Kingston ram modules 2x4Gb in order to to upgrade my Dell780 DT.
The Ram Type is KVR13N9S8K2/8 (8GB PC3-10600 CL9 240pin kit).
According to Dell's document http://i.dell.com/sites/content/business/solutions/engineering-docs/en/Documents/optiplex-780-tech-g... (Page9) this memory kit should work on my system (after upgrading BIOS to A15 also) but unfortunately DID NOT.
I have the lights 1 & 3 litted with a buzzing sound without booting.
Reading a numerous posts i saw that there are many posts concerning memory incompatibility of Dell780.
Can you find me any solution about my problem?
Why at Dell's guidebook page 9 you report that this machine can operate with 1333Mhz memory types?
I contacted the memory seller and can't accept any return of the memories i purchased, because they are unsealed.
Do you have any plans to update the BIOS to a compatible memory upgrade version if this can be a solution, otherwise to look for selling my memory kit as used and buy another.
Thanks in advance.
4GB 1Rx8 512M x 64-Bit x 2 pcs. PC3-10600 CL9 240-Pin DIMM
The issue is the speed of the ram which is too slow.
DDR3 PC3-12800 is required.
Note the Devil in the details.
DDR3-1333 Clock 166 MHz, I/O Bus Clock 666 MHz Cycle Time 6 ns
DDR3-1600 Clock 200 MHz, I/O Bus Clock 800 MHz Cycle Time 5 ns.
Report Unresolved Customer Service IssueshereI do not work for Dell. I too am a user. The forum is primarily user to user, with Dell employees moderatingContact USA Technical Support
Get Support on Twitter @DellCaresPro