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DDR3 - Sandy Bridge Multiplier (Asus P8Z68-V)


genetix
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How is the Sandy Bridge Z68 board multiplier calculated.

According to AIDA64 ratio is 32:3 (8:1 by CPU-Z).

Set is:

CPU 4700Mhz (x47)

DDR3 2133Mhz

Board(P8Z68-V) is at 100.0Mhz

So, from what is that calculated ? (10,665 x 100 = 1066.5 x Double Data Rate = 2133Mhz <- Just doesn't make any sense where the 8:1 comes from.)

or is the memory controller always 266Mhz Quad pumped (x4) 1333Mhz which would make 2133Mhz DDR3 2333 / 266 to be 8:1.

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Also while at it.. Would also like to say that PSU voltages are off.

* 5V is reporting 5.591v (by BIOS and on ASUS Probe this is 5.096v)

* 12V is reporting 7.843V (by BIOS and on ASUS Probe this is 12.072v and max droop on OCCT ain't even over 0,072v)

* -5V gives me -2.485V (by BIOS and on ASUS Probe this is -5.048v)

* There's VBAT voltage shown which is kinda weird.

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32:3 means 1066 MHz memory clock, since the base clock of Sandy Bridge processors is nominal at 100 MHz. So 100 x 32 / 3 = 1066.66 MHz, which is the clock speed of DDR3-2133 memory modules.

We are not in a position to comment on values you obtain (the "8:1") using other software, since we're not behind those software in any ways. You can however contact the author of CPU-Z for clarification though.

As for the voltages, make sure to upgrade to the latest beta version of AIDA64 Extreme Edition available at:

http://www.aida64.com/downloads/aida64extremebuild1492kmc8wty1zbzip

After upgrading to this new version, make sure to restart Windows to finalize the upgrade.

Let me know if you find any further issues in AIDA64 about your computer.

Regards,

Fiery

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32:3 means 1066 MHz memory clock, since the base clock of Sandy Bridge processors is nominal at 100 MHz. So 100 x 32 / 3 = 1066.66 MHz, which is the clock speed of DDR3-2133 memory modules.

We are not in a position to comment on values you obtain (the "8:1") using other software, since we're not behind those software in any ways. You can however contact the author of CPU-Z for clarification though.

As for the voltages, make sure to upgrade to the latest beta version of AIDA64 Extreme Edition available at:

http://www.aida64.com/downloads/aida64extremebuild1492kmc8wty1zbzip

After upgrading to this new version, make sure to restart Windows to finalize the upgrade.

Let me know if you find any further issues in AIDA64 about your computer.

Regards,

Fiery

Thanks for the reply that solved everything. ;)

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