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VTTIO voltage for RAM?

post #1 of 7
Thread Starter 
2133MHz 9-11-9-28-2T. 1.65v

What should my VTTIO be?>
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post #2 of 7
it should be .5 of your vDDR..

1.65/2 = .825v
post #3 of 7
Thread Starter 
Quote:
Originally Posted by CL3P20 View Post
it should be .5 of your vDDR..

1.65/2 = .825v
No way... That is way way too low. I'm pretty sure it is higher than that, since on auto it is 1.000v when I run 1333MHz.
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post #4 of 7
Quote:
Originally Posted by CL3P20 View Post
it should be .5 of your vDDR..

1.65/2 = .825v
Within 0.5V, not 0.5x the Vdimm.
    
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post #5 of 7
if by vttio you mean vccio, then it should be at 1.15 if your vdimm is at 1.65
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post #6 of 7
I thought you were referring to a RAM reference voltage option in your BIOS..didnt realize this was a 1155 IMC voltage ..my apologies.

*For those of you familiar with this adjustment.. Q- Do you find you have to increase VTTIO for tighter latency... or only to run faster speed?

ie- 1600mhz RAM may = 1.6v, 8-8-8-24 with VTTIO set to 1.15

does

1600mhz RAM @ 1.6v 7-7-7-21 require higher VTTIO... or not?
post #7 of 7
Quote:
Originally Posted by CL3P20 View Post
I thought you were referring to a RAM reference voltage option in your BIOS..didnt realize this was a 1155 IMC voltage ..my apologies.

*For those of you familiar with this adjustment.. Q- Do you find you have to increase VTTIO for tighter latency... or only to run faster speed?

ie- 1600mhz RAM may = 1.6v, 8-8-8-24 with VTTIO set to 1.15

does

1600mhz RAM @ 1.6v 7-7-7-21 require higher VTTIO... or not?
I'd say both, higher speeds and tighter latency require the voltage changes to be adequete enough for the RAM to run, therefore the VCCIO could in fact help stablize the RAM.
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