I purchased an Optiplex 380 a couple of years ago which came with 2x2GB RAM @ 1066Mhz and now I think time has come to upgrade to at least 8GB. So, I tried a kingston value ram of 4gb @ 1333Mhz and unfortunately it beeped with 1 and 3 diagnostic LEDs lit. I know that the Dell manual says a maximum of 4GB ram but I have seen people here on dell forums running 2x4GB without any problems, so according to my thinking, maybe the bus frequency is the problem? shall I try 1066Mhz? Crucial's site also suggests up to 1600Mhz so whats the confusion here?
P.S. I have latest BIOS A07 flashed.
Thank you for reaching out.
Did you try 8GB(4+4) or Does it beeps even with a 4GB stick in one slot?
Try each stick on both the slots, If that fails, you may try 1066 mhz.
P.S: We haven't tested 8GB configuration on this motherboard from the factory, If none of the steps works, You may have to revert back to 4GB.
Yes I tried that Kingston 1333mhz in single slot, it didnt worked, I have seen on various forums with people able to run 8GB on this system so I think 1066Mhz is my last hope.
Actually I have just checked my existing ram in CPU-Z and its PC3-10700 which is 1333Mhz I guess right?
You cant use High density Quad Rank Ram. The speed of the ram also counts.
DDR3 PC3-12800 • 9-9-9-24 • Unbuffered • NON-ECC • DDR3-1600 • 1.35V • 512Meg x 64 • Low Profile •
DDR3 PC3-10600 • CL=9 • Unbuffered • NON-ECC • DDR3-1333 is too slow.
Ranks are sub-units of a memory module which share the same address and data buses and are selected via CS (Chip Select) in low level addressing. For example, take a memory module with 8 chips on each side, with each chip having 8 bit wide data bus, then that module would have one rank for each side for a total of 2 ranks, if we define a rank to be 64 bits wide. That's why High density is not sufficent for some chipsets because the BUS is 128 bits wide. This is also why only 1/2 of each dimm is working when 4 are used. You need RANK 4 ram due to the width of the bus. Some systems only allow single rank memory.
high density RAM is not compatible with intel cpu's and Intel ® G41 Express Chipset you will see this noted on ebay and other sites.If you install high-density memory on a motherboard that is not compatible with the module, it will not work or only recognize a portion of the memory.
With 4 slots max ram is 8 gigs aka 2 gig max memory module size.
16 gigs is not possible aka 4 x 4 gig module.
So can you specify what to look for when I purchase a 4GB stick for my 380? and max ram speed supported is 1066 right? or 1333 or 1600 might work as long as 4 rank?
Basically EVERYTHING about those modules is wrong.