Hi all,

 

I recently purchased a new CPU, RAM, MOBO and cooler acouple days ago. I did however buy RAM rated at 2400MHZ and 1.65v. I did ot realize that with the sandy bridge CPUs, max DRAM voltage is 1.5.

 

 

Can I lower the dram voltage to 1.5 and reduce the speed to around 1600 or so and tighten the timings? Or do I have to get new ram and delay the hardware installation?

 

 

 

 

Here is what I bought.

• 
  
  • 
    
    • G.SKILL Ripjaws Z Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 2400 (PC3 19200) Desktop Memory Model F3-2400C10D-8GZH
      

    [*]

    • 1 xIntel Core i7-2700K Sandy Bridge 3.5GHz (3.9GHz Turbo) LGA 1155 95W Quad-Core Desktop Processor Intel HD Graphics ..
      

    [*]

    • 1 x COOLER MASTER V8 RR-UV8-XBU1-GP 120mm Rifle CPU Cooler Intel Core i7 compatible
      

    [*]

    • 
       
      

    [*]

    • 1 x ASUS P8Z77-M PRO LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 Micro ATX Intel Motherboard
      

    [*]

     

Matthew

It may depend on the mobo/bios settings which can automatically "down-set" the RAM to a lower speed. If not, in the BIOS you could manually set the speed to the "highest" shown which might be 1800 or 2100 - again depending on the mobo. There should be no major issues in doing that. the voltages should then be appropriate for the RAM speed.

Often when I overclock I down-set the RAM to the default mobo speed (in may case 1333) and then once the overclock is stable I let the BIOS set the auto correct speed of 1600.

Nice components by the way.

pH

Now problem , as free spirit say

You can test 2133 9 10 10 28 1T sure that this mems do that.

À run My 2800mhz mems at 2133 8 10 10 24 1T on SB .

 

Hassse

Thanks for the advice and nice comments on my upgrades. I have been reading that the sandy bridge cpus memory cobtrollee is on the actual chip and if you run ram at 1.65 then you could ruin tge cpu. Thats why i was hoping i could lower the voltages and not have to worry.

Matthew

AFAIK as you lower the RAM speed the voltage will drop accordingly ie they are rated at 2400 at 1.65 but probably at 1800 or 2100 the voltage will be lower, much nearer to the 1.5v.

Hope this helps

pH