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1.65v RAM on a Z77 motherboard

post #1 of 29
Thread Starter 
I am looking for a kit of DDR3 2400 RAM, 2x8 GB. All of the kits I have found in stock are 1.65V default at 2400hz.

I am using a Sabertooth Z77 motherboard. I may be mistaken, but I thought it wasn't a good idea to run more than 1.5v on RAM through the older gen motherboards.

Is it safe to run 1.65v on a Z77 board on a daily basis?
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Murder Box II
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post #2 of 29
Completely safe to do so. I've been running 1.65v on my board for quite some time now. My rig is on 24/7.
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post #3 of 29
Don't forget too that you can often under-volt the kit (assuming you're OK with stock speeds). For instance, my 2400 MHz Trident X kit can be under volted to 1.570 V with absolutely no stability issues on stock speed and timings. thumb.gif
post #4 of 29
Thread Starter 
Thanks, I found a set of GSkill Tridents, CL10 that look like they should work great.
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Murder Box II
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post #5 of 29
Thread Starter 
Quote:
Originally Posted by francisw19 View Post

Don't forget too that you can often under-volt the kit (assuming you're OK with stock speeds). For instance, my 2400 MHz Trident X kit can be under volted to 1.570 V with absolutely no stability issues on stock speed and timings. thumb.gif

Is there any benefit to undervolting? If the kit JDEC standard is 2400hz at 1.65v, why would I select a lower voltage?
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Murder Box II
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Home PC
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CPUMotherboardGraphicsRAM
Intel 8700k Gigabyte Aorus Z370 Gaming 7 Zotac 1080Ti AMP Extreme Edition G. Skill Trident Z - 32GB/ 3200Hz/CL14/Dual 
Hard DriveCoolingOSMonitor
Sandisk Extreme Pro 480GB Corsair H100i V2 - w/ML120 Pro Fans  Windows 10 Home 64 Bit Acer Z35P 1440P G-Sync 
KeyboardPowerCaseMouse
Delux T9 Pro / Logitech K360 EVGA Supernova G2 1000W Corsair 750D Airflow Mionix Naos 7000 
Mouse PadAudioAudioOther
Perixx DX-3000LAL Aluminum Sound Blaster Z Logitech Z906 - 5.1 Maxnomic Commander S-III Gaming Chair 
CPUMotherboardGraphicsRAM
Intel G3440 Asus B85M-E/CSM EVGA GTX 950 Patriot Viper 3 - 2x8GB 1600hz 
Hard DriveOptical DriveCoolingOS
Samsung EVO 850 - 500GB + 4TB/3TB x 2/2TB WD Green LG CH12LS28 Bluray Scythe Big Shuriken 2 w/Corsair SP120 Fan Windows 10 64 Bit 
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post #6 of 29
Just for the info, only socket 1366 had issues with RAM voltage over 1.65v.
The Tridents are a must buy in my papers, just my 2 cents. thumb.gif
   
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post #7 of 29
yes, no probs. you can actually run JEDEC speeds at minimal voltage (e.g. 1.30v or 1.50v depending on sticks) and fail-safe timings (usually CL9 1T), but usually at max 1600MHz (or 1333MHz depending on sticks).
Other than that run it at XMP and rated voltage and timings/speeds. I used to run Mushkin 2x4GB @ 2133MHz CL9 @ 1.70V 24/7 on my z77+3770K

Undervolting the rated speed is another story, but please make sure under MemTest86+ 4.20 that it is actually stable over night.
post #8 of 29
Quote:
Originally Posted by Robilar View Post

Thanks, I found a set of GSkill Tridents, CL10 that look like they should work great.

I'm using the Trident X 2400mhz with my 3770k and no issues over a year later. There is allot of misinformation stating 1.65v memory is bad to use or causes degradation. I see no proof of that happening in my systems.
post #9 of 29
Quote:
Originally Posted by Robilar View Post

Is there any benefit to undervolting? If the kit JDEC standard is 2400hz at 1.65v, why would I select a lower voltage?

The main benefit is it puts a bit less stress on the IMC. For me, I'm OK running stock speeds on the Trident X kit, so I decided to see how much I could lower the voltage and ran with it like that. But there's also lots of people (and as chip94 mentioned above) that run 1.65 V no problem. My suggestion for under-volting was food for thought as some people are concerned about running 1.65 V. smile.gif
post #10 of 29
Thread Starter 
Thanks for all the great responses. I've been something of a set and forget it type when it comes to RAM in the past.
Murder Box II
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CPUMotherboardGraphicsRAM
Intel 8700k Gigabyte Aorus Z370 Gaming 7 Zotac 1080Ti AMP Extreme Edition G. Skill Trident Z - 32GB/ 3200Hz/CL14/Dual 
Hard DriveCoolingOSMonitor
Sandisk Extreme Pro 480GB Corsair H100i V2 - w/ML120 Pro Fans  Windows 10 Home 64 Bit Acer Z35P 1440P G-Sync 
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CPUMotherboardGraphicsRAM
Intel G3440 Asus B85M-E/CSM EVGA GTX 950 Patriot Viper 3 - 2x8GB 1600hz 
Hard DriveOptical DriveCoolingOS
Samsung EVO 850 - 500GB + 4TB/3TB x 2/2TB WD Green LG CH12LS28 Bluray Scythe Big Shuriken 2 w/Corsair SP120 Fan Windows 10 64 Bit 
MonitorKeyboardPowerCase
Samsung 75" TV.... GooBang Doo MX3 Corsair CX430 V2 NMEDIAPC HTPC 6000B w/ Pro LCD Module 
Mouse
GooBang Doo MX3 
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Murder Box II
(18 items)
 
Home PC
(15 items)
 
 
CPUMotherboardGraphicsRAM
Intel 8700k Gigabyte Aorus Z370 Gaming 7 Zotac 1080Ti AMP Extreme Edition G. Skill Trident Z - 32GB/ 3200Hz/CL14/Dual 
Hard DriveCoolingOSMonitor
Sandisk Extreme Pro 480GB Corsair H100i V2 - w/ML120 Pro Fans  Windows 10 Home 64 Bit Acer Z35P 1440P G-Sync 
KeyboardPowerCaseMouse
Delux T9 Pro / Logitech K360 EVGA Supernova G2 1000W Corsair 750D Airflow Mionix Naos 7000 
Mouse PadAudioAudioOther
Perixx DX-3000LAL Aluminum Sound Blaster Z Logitech Z906 - 5.1 Maxnomic Commander S-III Gaming Chair 
CPUMotherboardGraphicsRAM
Intel G3440 Asus B85M-E/CSM EVGA GTX 950 Patriot Viper 3 - 2x8GB 1600hz 
Hard DriveOptical DriveCoolingOS
Samsung EVO 850 - 500GB + 4TB/3TB x 2/2TB WD Green LG CH12LS28 Bluray Scythe Big Shuriken 2 w/Corsair SP120 Fan Windows 10 64 Bit 
MonitorKeyboardPowerCase
Samsung 75" TV.... GooBang Doo MX3 Corsair CX430 V2 NMEDIAPC HTPC 6000B w/ Pro LCD Module 
Mouse
GooBang Doo MX3 
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