Overclock.net › Forums › Components › Memory › basic memory overclocking question
New Posts  All Forums:Forum Nav:

basic memory overclocking question

post #1 of 7
Thread Starter 
Hi there,

i'm new to the scene and am currently building my own computer, i've got most of the components and need to just make a decision on what memory to get.

I've bought a MSI P67A-G45 mobo for a sandy bridge CPU. In the motherboard's specs it states that: Memory speed - 1066/1333/1600*/1866*/2133*(OC)

From that i'm guessing the standard speed is 1333Mhz and to achieve higher you need to overclock. My question is this, what memory speed memory should i buy if i do want to overclock my memory to say 1600Mhz. Do I buy 1333Mhz memory and then overclock that to 1600Mhz or do i buy 1600Mhz speed memory and change the memory speed in BIOS to that setting? I haven't been able to find a clear answer anywhere

And then a question following that is does high speed memory (1600Mhz for example) work in a lower DIMM slot (1333Mhz for example)?

Thanks for your time, i may be asking a stupid question so i apologise if that is the case
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
intel i7 2600K @ 4.2GHz MSI P67A-G45 Zotac GTX 560ti AMP! 8gb RipjawsX 1600MHz 
Hard DriveOSMonitorPower
60gb OCZ SSD + 1TB Seagate Windows 7 Ultimate 64bit Philips 27" LED Monitor Coolermaster 550w 
Case
Coolermaster Centurion 5 II 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
intel i7 2600K @ 4.2GHz MSI P67A-G45 Zotac GTX 560ti AMP! 8gb RipjawsX 1600MHz 
Hard DriveOSMonitorPower
60gb OCZ SSD + 1TB Seagate Windows 7 Ultimate 64bit Philips 27" LED Monitor Coolermaster 550w 
Case
Coolermaster Centurion 5 II 
  hide details  
Reply
post #2 of 7
You can buy either 1333 or 1600Mhz RAM. If you buy 1600Mhz, it should be able to run at that speed, whereas it's not as certain if you buy 1333Mhz. Also, if you look at the timings (i.e., 9-9-9-24), you'll notice there's sometimes a trade-off between those and the frequency. Another thing to consider is voltage - you'll want a kit that can run with good specs at ~1.5v.

And, yes, you should be able to use any "high-speed" DDR3 memory in any other DDR3 slot, with perhaps a slight downclock. Pretty much any DDR3 board nowadays supports 1600Mhz RAM, though.
post #3 of 7
Welcome to OCN

When you buy memory it will say what the speed is for the kit, for example 1333MHz or 1600MHz, as well as timings 8-8-8-24 or 9-9-924 etc. You want high speed and low timings. Most people use G.Skill Ripjaws X for SB builds as they run on 1.5 (which is what is recommended for SB):
http://www.newegg.com/Product/Produc...-445-_-Product

You can overclock your RAM, so if you buy a 1600 8-8-8-24 kit, you can try overclocking it to 1866 9-9-9-24, it may or may not work, you may need to bump up the voltage a bit. Not much point overclocking your RAM though as you won't notice much performance gain (and before anyone says anything, I realize my RAM is OCed lol).

So in conclusion, buy some Ripjaws X, set the speed and timings in the BIOS to what they're rated for (if it doesn't do it automatically).
post #4 of 7
Thread Starter 
Thanks for the speedy responses, certainly has increased my understanding

i probably will go ahead and buy 1600Mhz memory, as in my first post the MSI specification states that speeds beyond 1333Mhz are OC'd, does this pose any danger to the motherboard if i constantly run the board/memory at that speed?
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
intel i7 2600K @ 4.2GHz MSI P67A-G45 Zotac GTX 560ti AMP! 8gb RipjawsX 1600MHz 
Hard DriveOSMonitorPower
60gb OCZ SSD + 1TB Seagate Windows 7 Ultimate 64bit Philips 27" LED Monitor Coolermaster 550w 
Case
Coolermaster Centurion 5 II 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
intel i7 2600K @ 4.2GHz MSI P67A-G45 Zotac GTX 560ti AMP! 8gb RipjawsX 1600MHz 
Hard DriveOSMonitorPower
60gb OCZ SSD + 1TB Seagate Windows 7 Ultimate 64bit Philips 27" LED Monitor Coolermaster 550w 
Case
Coolermaster Centurion 5 II 
  hide details  
Reply
post #5 of 7
They way that SB overclocks ram is based on a divider, thats based off the bclk. If you run the default 100 bclk, regardless of multi, you can choose any of the ram dividers and it'll run at that speed.

These are alll ram dividers to which you can set your ram at if you run 100 bclk.
1066/1333/1600*/1866*/2133*(OC)

You can buy ram rated at any of those speeds and just set the divider to it. The cpu can be running 5ghz and you can still choose any of those ram dividers.
Daily
(15 items)
 
  
CPUMotherboardGraphicsRAM
5960x Asus X99A II Asus GTX 1060 Dual Team Vulcan (4 x 8GB) DDR4 3000 
Hard DriveOptical DriveCoolingOS
Samsung 960 evo LG Bluray  Thermaltake Water 3.0 Ultimate Windows 7 64 
MonitorKeyboardPowerCase
Dell U3415W OCN Ducky  Seasonic X750 Corsair Carbide 600Q 
MouseMouse PadAudio
Razer DeathAdder Black Edition Glorious  Creative Sound Blaster Z 
  hide details  
Reply
Daily
(15 items)
 
  
CPUMotherboardGraphicsRAM
5960x Asus X99A II Asus GTX 1060 Dual Team Vulcan (4 x 8GB) DDR4 3000 
Hard DriveOptical DriveCoolingOS
Samsung 960 evo LG Bluray  Thermaltake Water 3.0 Ultimate Windows 7 64 
MonitorKeyboardPowerCase
Dell U3415W OCN Ducky  Seasonic X750 Corsair Carbide 600Q 
MouseMouse PadAudio
Razer DeathAdder Black Edition Glorious  Creative Sound Blaster Z 
  hide details  
Reply
post #6 of 7
Thread Starter 

understood, so would you recommend this memory kit? -


once again thank you for such a quick response
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
intel i7 2600K @ 4.2GHz MSI P67A-G45 Zotac GTX 560ti AMP! 8gb RipjawsX 1600MHz 
Hard DriveOSMonitorPower
60gb OCZ SSD + 1TB Seagate Windows 7 Ultimate 64bit Philips 27" LED Monitor Coolermaster 550w 
Case
Coolermaster Centurion 5 II 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
intel i7 2600K @ 4.2GHz MSI P67A-G45 Zotac GTX 560ti AMP! 8gb RipjawsX 1600MHz 
Hard DriveOSMonitorPower
60gb OCZ SSD + 1TB Seagate Windows 7 Ultimate 64bit Philips 27" LED Monitor Coolermaster 550w 
Case
Coolermaster Centurion 5 II 
  hide details  
Reply
post #7 of 7
Quote:
Originally Posted by willman256 View Post
understood, so would you recommend this memory kit? - http://www.amazon.co.uk/G-Skill-Ripj...0598864&sr=8-2

once again thank you for such a quick response
That is a very good choice


Read this and this

Hope that helps
it looks alive
(17 items)
 
Sandy Transformed
(69 photos)
 
CPUMotherboardGraphicsRAM
i5 2500K [5ghz 1.44v 24/7] Asus Maximus IV Extreme SLI GTX 460 @ 920/1840/4100 [1.11v] 4GB Dominator GT @ 2133mhz CL8 [1.65v] 
Hard DriveHard DriveCoolingOS
Intel X25-M G2 80GB 3x Samsung F3 500GB RAID 0 EK Supreme HF Full Copper Windows 7 Ultimate 64bit 
MonitorPowerCaseAudio
LG42SL9500 42" 1080p [Surround Soon] XFX XXX Edition 650w Xigmatec Elysium JVC HA-RX700 [foam mod] 
  hide details  
Reply
it looks alive
(17 items)
 
Sandy Transformed
(69 photos)
 
CPUMotherboardGraphicsRAM
i5 2500K [5ghz 1.44v 24/7] Asus Maximus IV Extreme SLI GTX 460 @ 920/1840/4100 [1.11v] 4GB Dominator GT @ 2133mhz CL8 [1.65v] 
Hard DriveHard DriveCoolingOS
Intel X25-M G2 80GB 3x Samsung F3 500GB RAID 0 EK Supreme HF Full Copper Windows 7 Ultimate 64bit 
MonitorPowerCaseAudio
LG42SL9500 42" 1080p [Surround Soon] XFX XXX Edition 650w Xigmatec Elysium JVC HA-RX700 [foam mod] 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Memory
Overclock.net › Forums › Components › Memory › basic memory overclocking question