Any motherboards that can actually set ram to 1.65v?

Brando · 06-22-09, 07:18 PM

My ex58-ud3r is annoying me a little. I can set the ram to 1.64 or 1.66 but not to the 1.65v it's actually rated to run at. Also, setting the ram to 1.64v puts it at 1.632 actual volts but when I put it to 1.66 it fluctuations randomly between 1.648 and 1.664. Dammit! Can any of your boards put out exactly 1.65v to your ram?

Rattle · 06-22-09, 07:22 PM

the board undervolts to just under 1.65 when set to 1.66, 1.67 is even fine.

no mobo is gonna give you exact voltage anyway, even the extreme is 1.64 and 1.66 i wouldnt be concerned about it, most of the ram we have at 1600 doesnt even ned 1.64 to do 7 cas, nevermind 8.

Brando · 06-22-09, 07:31 PM

Ah ok thanks. I don't think it's an issue but I'm trying to sort out my instability problem. I was almost sure I was giving everything more than enough voltage so the ram came to mind but hopefully the extra notch of qpi volts I added will do the trick. It would be nice to just be able to kkep that 1.648 steady instead of it bouncing up and down like that. It wasn't under load at all, it just does this in idle every few seconds, back and forth, 1.648..1.664...1.648....1.664....wtf. It stays put at 1.632v with the 1.64v bios setting. Oh well I'll try it like this for awhile and see if the qpi voltage does it. Gracias!

Rattle · 06-22-09, 08:16 PM

unless your checking with a DMM none of it matter anyway. the readings I suggest are off of peoples charts made from the very few reputable reviews and some end users on XS

i7's are hard to get stable at 4ghz+ as in 24/7 no matter what you throw at it stable...

Brando · 06-22-09, 08:44 PM

It's surely a different beast. It gives no sign of instability before a crash\bluescreen. To this day I've never gotten a prime\linx error. Just random restarts and windows corruption.

MrFixit · 07-05-09, 07:30 PM

I was curious, how did you set your timings, manually or XMP? I read a Mushkin support thread about JEDEC sPD's only going to 667Mhz, and XMP was required to reach spec'd timings at speed on my 2000MHz. Does your mobo support it?

Rattle · 07-05-09, 09:07 PM

timings and qpi voltage more importantly

MrFixit · 07-06-09, 01:08 AM

Thats what I'm saying Rattle, with respect to the Timings. If you're not manually setting them, you're relying on the BIOS to read the SPD timings from the memory and configure the chipset to match these timings. But they only program the SPD's to the fastest official JEDEC standard supported. Intel defined the XMP profiles for speeds beyond that, and that's what sets the best timings at speed on my Mushkin.

Since it's fairly new to me, I was wondering what other people's results where with it.

http://www.intel.com/assets/pdf/whitepaper/319124.pdf
http://forums.mushkin.com/phpbb2/vie...php?f=3&t=2169

06-22-09, 07:18 PM	Thread Starter #1
Brando Member Join Date: Jan 2006 Location: Brandonia	Any motherboards that can actually set ram to 1.65v? My ex58-ud3r is annoying me a little. I can set the ram to 1.64 or 1.66 but not to the 1.65v it's actually rated to run at. Also, setting the ram to 1.64v puts it at 1.632 actual volts but when I put it to 1.66 it fluctuations randomly between 1.648 and 1.664. Dammit! Can any of your boards put out exactly 1.65v to your ram? __________________ []Intel 3570k 4.4ghz~Asus P8Z77-V pro~Megahalems[]Mushkin Blackline 2x4gb[]Gtx 670 direct cu II[]Dell U2410[]Plextor M3 pro 256gb~Spinpoint F3 1tb[]Pioneer BDR-206[]Corsair AX850[]Lian Li PC-V1020A[]Leopold tenkeyless~Deathadder[]Harman Kardon HK3490~Denon AH-D7000[] HEAT: http://www.heatware.com/eval.php?id=48093
	QUOTE Thanks

06-22-09, 07:22 PM	#2
Rattle Member Join Date: May 2005 Location: Home... again	the board undervolts to just under 1.65 when set to 1.66, 1.67 is even fine. no mobo is gonna give you exact voltage anyway, even the extreme is 1.64 and 1.66 i wouldnt be concerned about it, most of the ram we have at 1600 doesnt even ned 1.64 to do 7 cas, nevermind 8. __________________ M5G \| 2600k @ 4.5 \| H100 \| 16gb Sammy 30nm 1866 \| GTX680 Sig SC \| Xonar Essence Stx \| 550d \| 900w HCG \| VG24QE \| 120forceGT \| 640black \| 2tb \| CherryReds \| m60 \| Func1030 \| HEAT
	QUOTE Thanks

06-22-09, 07:31 PM	Thread Starter #3
Brando Member Join Date: Jan 2006 Location: Brandonia	Ah ok thanks. I don't think it's an issue but I'm trying to sort out my instability problem. I was almost sure I was giving everything more than enough voltage so the ram came to mind but hopefully the extra notch of qpi volts I added will do the trick. It would be nice to just be able to kkep that 1.648 steady instead of it bouncing up and down like that. It wasn't under load at all, it just does this in idle every few seconds, back and forth, 1.648..1.664...1.648....1.664....wtf. It stays put at 1.632v with the 1.64v bios setting. Oh well I'll try it like this for awhile and see if the qpi voltage does it. Gracias! __________________ []Intel 3570k 4.4ghz~Asus P8Z77-V pro~Megahalems[]Mushkin Blackline 2x4gb[]Gtx 670 direct cu II[]Dell U2410[]Plextor M3 pro 256gb~Spinpoint F3 1tb[]Pioneer BDR-206[]Corsair AX850[]Lian Li PC-V1020A[]Leopold tenkeyless~Deathadder[]Harman Kardon HK3490~Denon AH-D7000[] HEAT: http://www.heatware.com/eval.php?id=48093 Last edited by Brando; 06-22-09 at 07:36 PM.
	QUOTE Thanks

06-22-09, 08:16 PM	#4
Rattle Member Join Date: May 2005 Location: Home... again	unless your checking with a DMM none of it matter anyway. the readings I suggest are off of peoples charts made from the very few reputable reviews and some end users on XS i7's are hard to get stable at 4ghz+ as in 24/7 no matter what you throw at it stable... __________________ M5G \| 2600k @ 4.5 \| H100 \| 16gb Sammy 30nm 1866 \| GTX680 Sig SC \| Xonar Essence Stx \| 550d \| 900w HCG \| VG24QE \| 120forceGT \| 640black \| 2tb \| CherryReds \| m60 \| Func1030 \| HEAT
	QUOTE Thanks

06-22-09, 08:44 PM	Thread Starter #5
Brando Member Join Date: Jan 2006 Location: Brandonia	It's surely a different beast. It gives no sign of instability before a crash\bluescreen. To this day I've never gotten a prime\linx error. Just random restarts and windows corruption. __________________ []Intel 3570k 4.4ghz~Asus P8Z77-V pro~Megahalems[]Mushkin Blackline 2x4gb[]Gtx 670 direct cu II[]Dell U2410[]Plextor M3 pro 256gb~Spinpoint F3 1tb[]Pioneer BDR-206[]Corsair AX850[]Lian Li PC-V1020A[]Leopold tenkeyless~Deathadder[]Harman Kardon HK3490~Denon AH-D7000[] HEAT: http://www.heatware.com/eval.php?id=48093
	QUOTE Thanks

Any motherboards that can actually set ram to 1.65v?

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07-05-09, 07:30 PM	#6
MrFixit New Member Join Date: Jul 2009 Location: North America	DDR3 1600 timings I was curious, how did you set your timings, manually or XMP? I read a Mushkin support thread about JEDEC sPD's only going to 667Mhz, and XMP was required to reach spec'd timings at speed on my 2000MHz. Does your mobo support it? Last edited by MrFixit; 07-05-09 at 07:51 PM.
	QUOTE Thanks

07-05-09, 09:07 PM	#7
Rattle Member Join Date: May 2005 Location: Home... again	timings and qpi voltage more importantly __________________ M5G \| 2600k @ 4.5 \| H100 \| 16gb Sammy 30nm 1866 \| GTX680 Sig SC \| Xonar Essence Stx \| 550d \| 900w HCG \| VG24QE \| 120forceGT \| 640black \| 2tb \| CherryReds \| m60 \| Func1030 \| HEAT
	QUOTE Thanks

07-06-09, 01:08 AM	#8
MrFixit New Member Join Date: Jul 2009 Location: North America	Thats what I'm saying Rattle, with respect to the Timings. If you're not manually setting them, you're relying on the BIOS to read the SPD timings from the memory and configure the chipset to match these timings. But they only program the SPD's to the fastest official JEDEC standard supported. Intel defined the XMP profiles for speeds beyond that, and that's what sets the best timings at speed on my Mushkin. Since it's fairly new to me, I was wondering what other people's results where with it. http://www.intel.com/assets/pdf/whitepaper/319124.pdf http://forums.mushkin.com/phpbb2/vie...php?f=3&t=2169
	QUOTE Thanks

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