[TuN]

Asus P6T Deluxe
Intel i7 920
Mushkin PC3-16000 "Extreme" KIT 6144 MB

Extra info about the RAM:
1,65 V
3 x 2048 MB
8-7-24
CL=8
NON-ECC
Unbuffered

This is what my CPU-Z shows:




Everything is set to default as it was when I bought the computer.
I have tried changing the DRAM clock I guess from "Auto", to 1866 Mhz ( because I have 2000 Mhz RAM module ), but after few minutes got a blue screen.

Are the frequences good or should I improve something?

Thanks in advance

[noxqzs]

Check to see if the voltage on the memory is on AUTO as well. Looking at the screenshot, they might be defaulting to 1.5V. If that is the case, then try 1.65, as that seems to be a standard. I would also try one memory module at a time, as well as manual timing adjustments including a 2T command rate.

[redduc900]

Try again setting the DRAM frequency to 1866MHz, w/ the BCLK still at 133MHz, but temporarily change the timings to 9-9-9-24-1T w/ tRFC set to 110. Keep the DRAM voltage at 1.65 - 1.70V, but increase QPI/DRAM Core voltage to 1.35 - 1.45V.

[TuN]

To make things clear, I don't wanna overclock anything, I just want my RAM to run as close to 2000 Mhz, since I didn't pay 330 euros for it to run at 1600 Mhz

Last thing I want is to destroy something in my computer with losing warranty

Should I upgrade my BIOS btw? And how should increase voltages ? step by step with rebooting all the time?

[mgoode]

I dont have that MB but you should be able to set your memory frequency in the bios, the choices shoud look something like this:

2:8
2:10
2:12
etc

Select the one that gives you 1866 ram speed with you default bclk 133

Then set your dimm voltage to 1.65v you wont be out of warrenty with those settings.

[slotted]

Seems like there is a theme coming out with this board ( i have same board). I have a similar problem with Outrageously fast 2000MHz and expensive memory (new dominator). I know all my setting are correct as this memory has a built in X.M.P . But still blue screens. I hope you work it out, It’s so frustrating as our memory should work out of the box that why we paid so much for it. I think it’s this MB that is causing none of the high speed memory to function properly.

[redduc900]

Originally Posted by TuN

To make things clear, I don't wanna overclock anything, I just want my RAM to run as close to 2000 Mhz, since I didn't pay 330 euros for it to run at 1600 Mhz

Last thing I want is to destroy something in my computer with losing warranty

Should I upgrade my BIOS btw? And how should increase voltages ? step by step with rebooting all the time?

You won't be able to run the RAM at 2000MHz without making changes. Either run one of the two XMP profiles - XMP Profile #1 2000MHz (8-8-8-24), w/ a clock speed of 2.72 (143×19); or XMP Profile #2 1866MHz (8-8-8-24), w/ a clock speed of 2.66 (133×20). Profile #1 sets the memory voltage to 1.66V and QPI/DRAM to 1.65V, while Profile #2 sets the memory voltage to 1.66V and the QPI/DRAM to 1.5V. Or maually set the BCLK and CPU Ratio settings, along w/ upping the QPI/DRAM and memory voltages. And I was being conservative w/ the QPI/DRAM voltage in my last post, as it should be closer to 1.65V at 2000MHz; 1.5V at 1866MHz. Important: You should also change Back to Back CAS# Delay to 10 or 12 (AUTO defaults to 0), whereas you could probably lower the QPI/DRAM voltage from 1.65V to around 1.525 - 1.55V. You may also need to increase the DRAM voltage from 1.65V to around 1.7 - 1.72V, and CPU PLL to about 1.84V.

[H0PE]

I got a similar issue / request for help pls.

Hardware:
I7 quad core 2.66Ghz
3x2GB 1866Mhz XMP Ram
Asus P6T Deluxe V2 mobo

Question 1 (sorry noob I know ):
If I see: Speed: PC2-10600 (666Mhz)@9.9.9.24-1,5v
Does that mean the Mhz is the BASE Mhz (and its multiplied with some multiplier) or its the HIGHEST speed available at the moment?

Question 2:
Also I'm not able to set my cpu core speed up above 200Mhz. The system never boots up with it. I see that people with similar setup able to run the cpu on 500Mhz but just not sure what else I should set. Something I should tweak with the ram settings? :S

Thanks in advance for help!

Originally Posted by redduc900

You won't be able to run the RAM at 2000MHz without making changes. Either run one of the two XMP profiles - XMP Profile #1 2000MHz (8-8-8-24), w/ a clock speed of 2.72 (143×19); or XMP Profile #2 1866MHz (8-8-8-24), w/ a clock speed of 2.66 (133×20). Profile #1 sets the memory voltage to 1.66V and QPI/DRAM to 1.65V, while Profile #2 sets the memory voltage to 1.66V and the QPI/DRAM to 1.5V. Or maually set the BCLK and CPU Ratio settings, along w/ upping the QPI/DRAM and memory voltages. And I was being conservative w/ the QPI/DRAM voltage in my last post, as it should be closer to 1.65V at 2000MHz; 1.5V at 1866MHz. Important: You should also change Back to Back CAS# Delay to 10 or 12 (AUTO defaults to 0), whereas you could probably lower the QPI/DRAM voltage from 1.65V to around 1.525 - 1.55V. You may also need to increase the DRAM voltage from 1.65V to around 1.7 - 1.72V, and CPU PLL to about 1.84V.

[H0PE]

So could someone help me please?

This is me screenshot from my system:

http://a.imageshack.us/img214/5295/cpu200ram1600.jpg

I wonder what is my ram speed, is that really 800Mhz az shown on the screen? I've set 1600Mhz in bios (200*auto cpu speed and that gave 16xx Mhz for Ram).

Whats the truth then?

[redduc900]

Your RAM is currently running at 800MHz (DDR3-1600); 200 BCLK x 8 DRAM multiplier = DDR3-1600. CPU-Tweaker shows the result of the DRAM multiplier x 1/2 (8 x 1/2 = 4), and the effective / resultant DRAM frequency of 800MHz (DDR3-1600 x 1/2). And just disregard the info. in the Speed field of CPU-Tweaker; 667MHz / DDR3-1333 is the default DRAM frequency for a i7-920.

[H0PE]

Yay thanks for the detailed explanatory! Now I see what I have to see.

May I have one more question? my ram could run on 1866Mhz, but not sure how could I achieve it without changing the cpu settings now. I mean the next step on the ram speed "list after 1600 is 2000Mhz (because of the multipliers of the cpu and base Mhz). So is there any other settings I could change in order to change ONLY the ram speed?

Originally Posted by redduc900

Your RAM is currently running at 800MHz (DDR3-1600); 200 BCLK x 8 DRAM multiplier = DDR3-1600. CPU-Tweaker shows the result of the DRAM multiplier x 1/2 (8 x 1/2 = 4), and the effective / resultant DRAM frequency of 800MHz (DDR3-1600 x 1/2). And just disregard the info. in the Speed field of CPU-Tweaker; 667MHz / DDR3-1333 is the default DRAM frequency for a i7-920.

[redduc900]

Try setting the DRAM frequency to DDR3-2000, but loosen the timings to 10-10-10-24 or 10-10-10-42. If it POSTs and passes Memtes86+ w/ those timings, try tightening them one by one, for example 10-10-9-24, 10-9-9-24, etc. And you'll probably need to increase QPI/DRAM Core voltage (Vtt) at that high a frequency, along w/ possibly higher IOH voltage.

[H0PE]

Tried what you recommended redduc911...

Didn't work as I was expecint it, probably the 120Mhz tweak is too much for the ram. OR maybe I should have changed much more settings. Should I change ras to cas, round trip latency, timing mode? I'm afraid to touch them alone though, I did read about it just not sure what should be the good setting.

Currently I reduced clock speed to 190Mhz (auto multiply since the 200x21 was working perfectly before so I dont want to maximize the cpu speed as it is lower than it coul handle I think). The ram is running on 1900Mhz, qpi/dram on 1.55v and voltage is on 1.65.

However I would love to see the machine starting up on much higher cpu speed, wonder how could I achieve that? Isee people have 350, 400 or even 500 Mhz clock speed, man I envy them.