1.66v on i7 ram kits

this is from SPD in Everest.

Memory Module Properties:
Module Name Patriot Memory 1600LL Series
Serial Number None
Module Size 2 GB (2 ranks, 8 banks)
Module Type Unbuffered DIMM
Memory Type DDR3 SDRAM
Memory Speed DDR3-1066 (533 MHz)
Module Width 64 bit
Error Detection Method None

Memory Timings:
@ 533 MHz 7-7-7-20 (CL-RCD-RP-RAS) / 27-59-4-8-4-4 (RC-RFC-RRD-WR-WTR-RTP)
@ 457 MHz 6-6-6-18 (CL-RCD-RP-RAS) / 24-51-4-7-4-4 (RC-RFC-RRD-WR-WTR-RTP)

Extreme Memory Profile:
Profile Name Enthusiast (Certified)
Memory Speed DDR3-1600 (800 MHz)
Voltage 1.65 V
@ 800 MHz 8-8-8-24 (CL-RCD-RP-RAS) / 38-88-2-5-12-6-6 (RC-RFC-CR-RRD-WR-WTR-RTP)
@ 700 MHz 7-7-7-21 (CL-RCD-RP-RAS) / 33-77-2-5-11-6-6 (RC-RFC-CR-RRD-WR-WTR-RTP)
@ 600 MHz 6-6-6-18 (CL-RCD-RP-RAS) / 28-66-2-4-9-5-5 (RC-RFC-CR-RRD-WR-WTR-RTP)

Memory Module Features:
Auto Self Refresh Supported
Extended Temperature Range Supported
Extended Temperature Refresh Rate Not Supported
On-Die Thermal Sensor Readout Not Supported
 
Yep, and i suspect that the spd readings for everest are just the same as cpuz's, basically the spd listings are just info tables showing the various timings/voltages ram is rated to run at, not actually a real time monitoring of what you set in bios, unlike cpuz's memory tab which actually shows what the user has entered, unfortunately no voltage display though.
 
Well, i suppose it will depend on just how accurate monitoring software like hwmon actually is, but knowing about asus boards overvolting, it does make me think a bit as well.
 
Just had a look at some old screenshots ive saved with previous versions of hwmonitor, some show VIN1 at 1.68, some at 1.70, and current version at 1.71, could just be a case of monitoring software not being very accurate.
 
Mine used to be 1.66v in bios, as could'nt chose 1.65 with old bios, updated to the latest can now enter 1.65, which i now use.

HW monitor is allso showing 1.71v for me too, but im not to worried about it, as setter says, probably just not reading it right or something.
 
Tbh, im still on the bios that my motherboard shipped with, if it aint broke, dont fix it type of thing, perhaps a bios update would allow for setting 1.65 in bios, funny thing is too, i havent had a single cold boot in a few days now.
 
I may just choose to run mine at 1200 with auto volts, instead of 1600 with set volts, as most stuff i do dos'nt require fast memory, IE: Folding, so gonna test some more when i have some spare time.
 
Yep, mine is actually running below 1600mhz, 1547 mhz, 7-7-7-24 1T, 1.64v, as my cpu is clocked at 21x193 bclk for 4050mhz.
 
PaulyD said:
indeed, 1.66v is fine, won't cause any damage at all, i would be happy running upto 1.7v as long as it fits in the ratio with vtt.

Will also get droop with all voltages so you will find its less than what you set.

Also it will only be 1.65v if your running XMP settings, again with droop though - only way to truly measure is with a DMM
Click to expand...
Missed this earlier Pauly,:o think ill just set it to 1.66 then, qpi/vtt is currently at 1.3125.
 
Yep longs as its within 0.5v from qpi you're fine. So at 1.325v QPI/VTT, under 1.8125v should in theory be safe for the CPU (not so sure about the ram lol).
 
Yep, i got a bit lost in the thread tbh:o, put the ram voltage upto 1.66v, will just have to wait and see if this makes any difference to my cold boot issues. Thanks for your advice.:)
 
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