Originally posted by: ArchAngel777
Originally posted by: TDH
I spoke to a Dell support person last night and they told me (which I'm sure is just reading off a piece of paper), that the Dell 530 only supports 4GB of 1.8V DDR2 667/800, in 1 GB sticks. It does not support 2.1V DDR or 2GB sticks per channel since there is no option in the bios to increase the memory voltage. I'm sure that this is just limited by dell since it seems the board itself supports 8GB. I wonder if the new BIOS update which allows for memory above 4GB to be recognized fixes this?? I would think that would allow 2 GB sticks, but they would still have to run at 1.8v.
I'm confused... LOL...
Hopefully, this will help.
If you buy something that is 2.1v @ 1066 RAM. Usually the SPD is configured for 667 or 800 @ 1.8v. Very rarely is a memory module programmed with anything greater than 1.8v at either 667 or 800 in the case of DDR2. This is because it must conform to the JEDEC spec so that motherboards can at least boot up, allowing the user then to set DIMMS for a greater voltage and speed.
So, DDR2 800Mhz @ 2.0v will be programed for DDR2 667 @ 1.8v for auto detect. This allows you to put this DDR2 800 in your motherboard, boot up as DDR2 667 (It really is a 667 module overclocked) and then manually increase the voltage to 2.0 and the speed to 800Mhz. If they didn't do this, you would run into a major issue - unable to boot up into BIOS.
The key to all of this is understanding that any memory module outside the JEDEC spec is overclocked memory. But if the modules were programmed for the overclocked speeds, they would be relatively worthless and a high return rate. You would have to boot into your motherboard with different RAM, set the voltage and speed, save settings and power off, then pop in your overclocked modules. This is only *IF* the overclocked memory was programmed incorrectly, and didn't conform to a JEDEC spec.
I hope this helps you understand... Again, keep in mind that a lot of high end memory is overclocked modules that a cherry picked and ran at a higher voltage for increased frequency or reduced latency.