XMP profiles sets my RAM at 1.65 is it safe?
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- Trident
- Intel i7
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RAM
- DRAM Voltage
- Build
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Components
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G.SKILL
Last response: in Components
cer
April 8, 2014 6:33:04 AM
I have this RAM right now 2400 G.Skill trident in haswell I7 build. My XMP profile sets the DRAM voltage in second column at 1.65 (it is highlighted yellow compared to all the other stats), is it safe?
As soon as I change value to 1.5V. So many opinions online can't make heads or tails of it.
Thanks !
PS: I plan on overclocking later.
As soon as I change value to 1.5V. So many opinions online can't make heads or tails of it.
Thanks !
PS: I plan on overclocking later.
More about : xmp profiles sets ram safe
cer
April 8, 2014 6:58:42 AM
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cer
April 8, 2014 7:05:57 AM
For example browsing bit more :
2.1 System Memory Interface
...
• DDR3/DDR3L I/O Voltage of 1.5 V for Desktop
...
Running outside of that spec isn't covered under warranty if you should run into problem with a damaged memory controller on the CPU.
No one has said you can't do it. If the person who said that it is safe to do so, and is willing to pay the cost of a replacement CPU for you, then go right ahead and accept the risk.
The reason why the 1.5V is now officially stated is because some customers did damage their CPU's memory controller when they upgraded their old system from Nehalem to a new Sandy Bridge system and reused their old 1.65V memory modules where that voltage was programmed into the SPD table entries.
Not sure if it is the same now, but you can understand why I have doubts .
Quote:
From Desktop 4th Generation Intel® Core™ Processor Family and Desktop Intel® Pentium® Processor Family Datasheet – Volume 1 of 2 (September 2013) Page 182.1 System Memory Interface
...
• DDR3/DDR3L I/O Voltage of 1.5 V for Desktop
...
Running outside of that spec isn't covered under warranty if you should run into problem with a damaged memory controller on the CPU.
No one has said you can't do it. If the person who said that it is safe to do so, and is willing to pay the cost of a replacement CPU for you, then go right ahead and accept the risk.
The reason why the 1.5V is now officially stated is because some customers did damage their CPU's memory controller when they upgraded their old system from Nehalem to a new Sandy Bridge system and reused their old 1.65V memory modules where that voltage was programmed into the SPD table entries.
Not sure if it is the same now, but you can understand why I have doubts .
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BTW, I don't recommend OCing memory. The performance gains are minimal and more likely to make a system unstable. The difference between 1600 and 1866 (for example) is negligible and not even noticeable to you as the user.
Rather, I would recommend OCing the CPU and GPU and running your memory at a rock solid 1600 (you can try 1866, but personally I wouldn't go higher). This will rule out one major variable in establishing the optimal performance levels for your system.
Rather, I would recommend OCing the CPU and GPU and running your memory at a rock solid 1600 (you can try 1866, but personally I wouldn't go higher). This will rule out one major variable in establishing the optimal performance levels for your system.
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cer
April 8, 2014 7:17:05 AM
cer
April 8, 2014 7:44:55 AM
gskill support
April 8, 2014 11:51:37 AM
Intel only supports standard specifications, so they will mention 1.50V is the max. For enthusiasts and performance users, 1.65V is the max.
For anything other than DDR3-2400, or XMP, you need to manually configure settings in BIOS/EFI. The RAM can be used at DDR3-1600, DDR3-1866, 1.50V, 1.60V, it is very flexible, but you need to determine what settings and performance level you want to run at. Give us an idea and we can further assist you.
You don't need to worry about voiding warranty or damaging hardware. We would not offer a product that can harm your computer and other hardware.
Thank you
GSKILL SUPPORT
For anything other than DDR3-2400, or XMP, you need to manually configure settings in BIOS/EFI. The RAM can be used at DDR3-1600, DDR3-1866, 1.50V, 1.60V, it is very flexible, but you need to determine what settings and performance level you want to run at. Give us an idea and we can further assist you.
You don't need to worry about voiding warranty or damaging hardware. We would not offer a product that can harm your computer and other hardware.
Thank you
GSKILL SUPPORT
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cer
April 8, 2014 12:32:08 PM
gskill support said:
Intel only supports standard specifications, so they will mention 1.50V is the max. For enthusiasts and performance users, 1.65V is the max. For anything other than DDR3-2400, or XMP, you need to manually configure settings in BIOS/EFI. The RAM can be used at DDR3-1600, DDR3-1866, 1.50V, 1.60V, it is very flexible, but you need to determine what settings and performance level you want to run at. Give us an idea and we can further assist you.
You don't need to worry about voiding warranty or damaging hardware. We would not offer a product that can harm your computer and other hardware.
Thank you
GSKILL SUPPORT
I would be happy to run it at 2400, which under XMP profile sets it at 1.65V, it is highlighted yellow as if I have crossed a boundary.
Could you also advise me reguarding BIOS updates for my mobo, I have not done single one since my first boot. Everything has been running fine so far, would you advise me update BIOS (will it benefit performance) and if so where do I start, there are more than 50 http://www.asus.com/Motherboards/MAXIMUS_VI_HERO/HelpDe... .
Thanks for helping out !
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gskill support
April 9, 2014 10:13:27 AM
Yellow only means above standard. In many extreme cases, we run values highlighted in red and that's still fine. As long as the voltage is being used, and it is not high value for no purpose, then that's not a problem. With a lot of unused voltage, the hardware is forced to regulate it and that can be stressful.
If you are not having issues, it is not absolutely necessary to update BIOS, but to fix all the bugs you can consider doing it so it is up to date.
Thank you
GSKILL SUPPORT
If you are not having issues, it is not absolutely necessary to update BIOS, but to fix all the bugs you can consider doing it so it is up to date.
Thank you
GSKILL SUPPORT
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cer
April 9, 2014 11:47:38 AM
gskill support said:
Yellow only means above standard. In many extreme cases, we run values highlighted in red and that's still fine. As long as the voltage is being used, and it is not high value for no purpose, then that's not a problem. With a lot of unused voltage, the hardware is forced to regulate it and that can be stressful. If you are not having issues, it is not absolutely necessary to update BIOS, but to fix all the bugs you can consider doing it so it is up to date.
Thank you
GSKILL SUPPORT
How do I find out if the voltage is being used ?
Also on side note something else I have been grappling with,I am using Mobo Asus Maximus VI Hero ATX LGA1150, so to flash BIOS :
1.Reformat USB to Fat32
2.Download the BIOS update you want
3.Reset BIOS to default, shutdown.
4.Turn off power
5.Put in USB in the bio flash USB.
6. Go into bios go to EZ flash and select file.
1.Am I missing anything in these steps, in what from what I have gathered is best way to update bios.
2.Does my mobo use .ROM or .CAP files (the one MAXIMUS VI HERO BIOS 1402 i downloaded was .CAP)
3.Do I extract files onto USB or leave it zipped and put it on USB?
4.Do I rename files on USB?
5.In the Driver and Tools tab (http://www.asus.com/Motherboards/MAXIMUS_VI_HERO/HelpDe...) there are also audio updates etc, are those done through USB too?
6.Any details on how to convert .ROM to .CAP will be nice bonus
Very kind helping Asus newbie out.
Thanks you !
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cer
April 9, 2014 1:03:21 PM
COLGeek said:
In your BIOS, you can see the voltage being used in the memory settings.Loading the Realtek audio drivers is just like installing any device driver. You can install from any location where you store the files (SSD, HDD, or USB drive).
What version of BIOS are you currently running?
Was not quite sure so inspected mobo its rev 1.02. When I tried to update the sound driver I got error intel smart connect device not found on bios, something along those lines.
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Adroid
April 9, 2014 1:13:59 PM
Intel does not recommend running over 1.5V to RAM due to a delicate memory controll on the CPU die for Haswell/Ivy bridge. I think it may actually void your warranty.
Considering the minimal performance gains, I personally will not send more than 1.5 V to my Ivy Bridge RAM.
There is a large consensus of overclockers that think it's fine, but Intel does not. Here is one of many threads on the subject -
https://communities.intel.com/thread/30798
Considering the minimal performance gains, I personally will not send more than 1.5 V to my Ivy Bridge RAM.
There is a large consensus of overclockers that think it's fine, but Intel does not. Here is one of many threads on the subject -
https://communities.intel.com/thread/30798
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cer
April 9, 2014 1:22:05 PM
Adroid said:
Intel does not recommend running over 1.5V to RAM due to a delicate memory controll on the CPU die for Haswell/Ivy bridge. I think it may actually void your warranty.Considering the minimal performance gains, I personally will not send more than 1.5 V to my Ivy Bridge RAM.
There is a large consensus of overclockers that think it's fine, but Intel does not. Here is one of many threads on the subject -
https://communities.intel.com/thread/30798
Thanks Android, if I were to use XMP (still running 1333 till I make choice) would I change the voltage there to 1.5V leave it there, or is more tweaking involved?
How would CPU manufacturer know if you ran you RAM higher than 1.5V?
Is there a way to run 2400 RAM lower than 1.65V, if not might have been better to stick with lower speed RAM.
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gskill support
April 9, 2014 3:37:05 PM
For lower voltage while maintaining high frequency, you can raise timings.
DDR3-2400 12-13-13-31, 13-13-13, 13-14-14, these are values you can try to have a low DRAM Voltage, then test performance to see which settings are best for you. RAM is very flexible so you can set it up in many ways.
Thank you
GSKILL SUPPORT
DDR3-2400 12-13-13-31, 13-13-13, 13-14-14, these are values you can try to have a low DRAM Voltage, then test performance to see which settings are best for you. RAM is very flexible so you can set it up in many ways.
Thank you
GSKILL SUPPORT
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cer
April 9, 2014 3:45:05 PM
gskill support said:
For lower voltage while maintaining high frequency, you can raise timings. DDR3-2400 12-13-13-31, 13-13-13, 13-14-14, these are values you can try to have a low DRAM Voltage, then test performance to see which settings are best for you. RAM is very flexible so you can set it up in many ways.
Thank you
GSKILL SUPPORT
Also on side note something else I have been grappling with,I am using Mobo Asus Maximus VI Hero ATX LGA1150, so to flash BIOS :
1.Reformat USB to Fat32
2.Download the BIOS update you want
3.Reset BIOS to default, shutdown.
4.Turn off power
5.Put in USB in the bio flash USB.
6. Go into bios go to EZ flash and select file.
1.Am I missing anything in these steps, in what from what I have gathered is best way to update bios.
2.Does my mobo use .ROM or .CAP files (the one MAXIMUS VI HERO BIOS 1402 i downloaded was .CAP)
3.Do I extract files onto USB or leave it zipped and put it on USB?
4.Do I rename files on USB?
5.In the Driver and Tools tab (http://www.asus.com/Motherboards/MAXIMUS_VI_HERO/HelpDe...) there are also audio updates etc, are those done through USB too?
6.Any details on how to convert .ROM to .CAP will be nice bonus
Very kind helping Asus newbie out.
PS: repost incase you missed this one, I will give those settings a go tommorow, thanks !
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Adroid
April 9, 2014 8:18:31 PM
cer said:
Adroid said:
Intel does not recommend running over 1.5V to RAM due to a delicate memory controll on the CPU die for Haswell/Ivy bridge. I think it may actually void your warranty.Considering the minimal performance gains, I personally will not send more than 1.5 V to my Ivy Bridge RAM.
There is a large consensus of overclockers that think it's fine, but Intel does not. Here is one of many threads on the subject -
https://communities.intel.com/thread/30798
Thanks Android, if I were to use XMP (still running 1333 till I make choice) would I change the voltage there to 1.5V leave it there, or is more tweaking involved?
How would CPU manufacturer know if you ran you RAM higher than 1.5V?
Is there a way to run 2400 RAM lower than 1.65V, if not might have been better to stick with lower speed RAM.
XMP profiles set the RAM to a designated timing and clock speed. To underclock the RAM, you will probably need to do it manually. Start by manually setting the voltage to 1.5V, then play with timings and frequencies. You could try doing 1866 with 9-10-9-28 CAS speeds @1.5V and go from there. I would google some other G Skill RAM timings and frequencies and try to match it.
I'll be honest I don't know how G Skill handles their products, the 2400MHZ stuff you bought may very likely be 1866 overclocked and overvolted. I don't know if they "bin" the 1866 sticks and sell the better once as the 2400 model.
On one hand its a shame to buy such top of the line RAM, and not use it at it's rated speeds. On the other hand, Intel says not to use over 1.5V because it can damage the CPU.
Again, I personally don't run my i5 at higher than rated voltages because to me the extra 2 FPS the overclocked RAM might give simply isn't worth it. I am exaggerating but google some charts - overclocked RAM offers very little performance gains.
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