I'm running Ubuntu Linux (64-bit) and upgraded from 4 GB to 6 GB of RAM. Currently, this is how my Optiplex GX620 rates, according to BIOSAgentPlus:
|BIOS Date:||October 13th, 2005|
|BIOS ID:||OptiPlex GX620|
|Chipset:||Intel 2770 rev 2|
As I understand it, A05 is capped at 4 GB, even though my 64-bit OS will see more, if the BIOS allows. If I flash up to A11, will that remove the 4 GB limitation, or am I still stuck with it?
Solved! Go to Solution.
To get 3.5 GB you would need to have 4 GB or more installed. As you can see from my system stats above, I have 6 GB of physical RAM installed in my system, but even though I'm running 64-bit Linux, the Intel 945 chipset only passes 3.5 of that along to the OS. Of the remaining 2.5, 2 GB is ignored and 512 MB is used for the system bus, PCI slots, on-board video, etc.
The Bios will recognize up to 8 gigs. However the max ram you will get is 3.5 gigs.
This is a Chipset Limitation.
64 bit os will not fix this. If you want more ram use an Optiplex 755 or better.
Mine wouldn't boot with 8gb installed.
Mine would boot with 32 Bit OS XP/Linux. 64 bit os would try to boot and then hung.
With all due respect, that makes very little sense. If you change the mainboard then the PC is technically no longer a GX620- unless you are basing your system names on the system's case. So technically speaking I find your "advice" to be somewhat comedic. Furthermore, dell cases are often so proprietary that I have to say good luck finding a "mainboard" aka motherboard that will fit into the GX620's case (without drilling and adding mounting posts, etc...). The bottom line is a GX620 will not support the use of more than 4gb of memory in any configuration- and 512mb of that will not be accessible to the user. "Changing the mainboard" will make the computer into a machine that is something other than a GX620 and I'm going out on a limb here by assuming that it would VOID the customer's warranty, if applicable.