Friday, October 3rd 2008
Theory of DDR3 Voltage Limitations for Bloomfield Gains Ground
Nehalem does promise to be a processor to look out for, it would be Intel's next installment, post the successful Core 2 series processors. This time however, Intel made a core modification with the way the system handles memory. The Bloomfield processors house a massive 192-bit wide memory controller for supporting tri-channel DDR3 memory. It however was found that the controller could bring in limitations to the DIMM voltages that the system could support.
The retail version of ASUS P6T Deluxe OC Palm Edition motherboard was unboxed by XFastest. Being the retail product, as usually, it comes with precautionary labels attached to parts of the motherboard. The one that covers the 6 DDR3 DIMM slots reads:
It could have implications on the current DDR3 memory market as well as you, if you happen to have DDR3 modules, which you plan to retain for use in the future platform, that operate above the said voltage. It also means that in the near future, we could be seeing memory sticks that facilitate overclocking at much lower voltages. From a technology standpoint, companies such as Samsung, Elpida, Micron, etc., are working on releasing DRAM chips based on newer silicon fabrication technologies, that operate at lower voltages.
The retail version of ASUS P6T Deluxe OC Palm Edition motherboard was unboxed by XFastest. Being the retail product, as usually, it comes with precautionary labels attached to parts of the motherboard. The one that covers the 6 DDR3 DIMM slots reads:
According to Intel CPU SPEC, DIMMs with voltage setting over 1.65V may damage the CPU permanently. We recommend you to install DIMMs with voltage setting below 1.65V.
89 Comments on Theory of DDR3 Voltage Limitations for Bloomfield Gains Ground
Triple w00!
:rockout:
That is all... for now.
I'm just wonder I can't find any links yet about it.
Also been looking for what happens when you stick 3 sticks in on current motherboards. But I think that he is right that one stick will not be in dual channel. AMD XP chips had motherboards with 3 slots and it would run in dual channel mode.
www.anandtech.com/cpuchipsets/showdoc.aspx?i=1719&p=4
This is the new Intel
www.sysopt.com/features/cpu/article.php/3775041cool, you never know they could of taken out dual, but that would be a crazy thing to do.
Edited:thought about what it said.
I feel like an idiot wondering about these things, lol So it does have dual channel support . I was talking to someone else that wondered the same thing. So if you put 4 chips in that triple channel motherboard what happens. I wonder if you put 4 in will it still be in triple mode like it was dual mode for 3 chips on the older nforce2.
I think it's rambus ram that made me think it. Because in that system you had to have 2 chips. If you didn't it didn't work, but of course DDR is different.
I could test the 3 sticks in my machine tonight sometime.
if you like to
Cool, so with the new Intel it should be triple channel if you just bought two sets 2 DDR3 chips.
myth dispelled....
give me a min to explain.....
QPI/dram voltage is related to the path between the memory controller and the actual ram itself. this needs to be within .5v of the vcore to prevent damage to the memory controller.
Dram bus voltage is the actual voltage that the ram is running at.... IE: Vdimm, Vram, Vmem, etc. this should be as close as possible to within .5v from the qpi/dram voltage.source.... www.bit-tech.net/hardware/2008/11/06/overclocking-intel-core-i7-920/3
and if you think 2000mhz isnt possible on x58....
here ya go.........
2XXXmhz ram on x58 in tripple channel.