• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

Missing Ram

Joined
May 6, 2013
Messages
12 (0.01/day)
Likes
0
#1
I have this issue on my board (sabertooth X79) that when i change my memory speed from 1666 to 2000mhz I loose 2 channels. I have 16GB-4X4GB but when i change speed i only have 8GB available.

Any ideas?
 
Joined
Nov 20, 2013
Messages
2,821 (1.66/day)
Likes
2,881
Location
Kiev, Ukraine
System Name Evil Midget
Processor i3-6100
Motherboard MSI B150I PRO AC
Cooling Noctua NH-L9i
Memory 2x8GB Kinkston HyperX DDR4-2133 CL14
Video Card(s) ASUS GTX950 MINI
Storage Samsung XP941, Sandisk X400 512GB
Display(s) Samsung U24E590D (4K/UHD)
Case LianLi Q11B
Audio Device(s) Int.
Power Supply SeaSonic 450W 80+ GOLD
Mouse Logitech G5
Keyboard Zalman K500 modded
Software Windows 10
Benchmark Scores Can fit into a backpack =)
#2
Fill out your specs. It will make it easier.

There are few things in play:
1) According to ASUS spec this board supports up to DDR3-1866, so actually you are lucky that your PC starts @2000MHz at all.
2) Check your RAM compatibility against ASUS QVL. Some modules may have issues, some modules are only supported in certain configurations.

Visit this page and use search to find QVL tables.

http://images10.newegg.com/UploadFi...ce/ASUS/E8040_SABERTOOTH_X791401383612703.pdf
 
Joined
Mar 14, 2009
Messages
3,667 (1.07/day)
Likes
1,600
Location
Ohio
System Name Fractured puke.
Processor Intel I7-8700k
Motherboard MSI z370 Gaming M5
Cooling Corsair H110i
Memory 16GB G.Skill TridentZ 3200MHZ
Video Card(s) Nvidia 1070ti
Storage 960 EVO 500gb/256gb WD Black 2280 M2/Patriot Ignite 480gb SSD/ Inland Pro 256gb SSD
Display(s) Acer 32" 2560x1440
Case Fractal Design Meshify-C
Audio Device(s) Onboard/ TBD
Power Supply Seasonic
Mouse Epicgear
Keyboard Razer Deatstalker
Software Windows 10Pro x64
#3
Are you using an XMP or changing speeds manually?
Any voltage changes?
 
Joined
May 6, 2013
Messages
12 (0.01/day)
Likes
0
#4
I'm changing speeds manually because the XMP profile on this kit would overvolt my IMC too much.

I got it to work...it seems it doesn't like the 2000mhz step but it works fine @2333mhz :) That's with a 125bclk cpu strap, with a 100bclk strap i only loose one channel @2133 :confused:




thanks for the help
 
Joined
Mar 14, 2009
Messages
3,667 (1.07/day)
Likes
1,600
Location
Ohio
System Name Fractured puke.
Processor Intel I7-8700k
Motherboard MSI z370 Gaming M5
Cooling Corsair H110i
Memory 16GB G.Skill TridentZ 3200MHZ
Video Card(s) Nvidia 1070ti
Storage 960 EVO 500gb/256gb WD Black 2280 M2/Patriot Ignite 480gb SSD/ Inland Pro 256gb SSD
Display(s) Acer 32" 2560x1440
Case Fractal Design Meshify-C
Audio Device(s) Onboard/ TBD
Power Supply Seasonic
Mouse Epicgear
Keyboard Razer Deatstalker
Software Windows 10Pro x64
#5
I would try the painstakingly slow process of manually finding out how much your IMC can take without a voltage increase while benching and then repeating the process with small increases in voltage.
I was able to achieve 2400Mhz on my I5 3570 but never had any real world results past 1866Mhz...Oddly enough set at 2000Mhz I never got it to post...1600, 1866, 2133 and 2400Mhz all did fine...I came to the conclusion the memory just did't work at 2000..
But regardless nice OC.
 
Top