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Question on Memory Speed.

post #1 of 3
Thread Starter 
G'day,

I have recently been thinking of upgrading my PC's RAM. It's an Intel i5 650 running on a Gigabyte GA-H55M-D2H.

The CPU will handle 1066/1333mhz RAM, It's currently has 4gbs of Dual Channel 1333mhz RAM. I wish to upgrade this RAM to 8gb but I don't wish to purchase the 1333mhz RAM as it is and at the end of the year I plan to buy a new Motherboard & Intel 4th Gen; Maybe 5th if its out when I buy the new components. The current Intel i5 4670K will take 1600mhz ram, so can I fit 1600mhz ram to my current PC and will it work? Even at the 1333mhz Speed.

My other question is there really any limit on the RAM speed that goes to a CPU? My current Motherboard will support 2200+/1800 So am I able to fit the fastest RAM I can buy and just down clock the speed, or buy 1800mhz ram and fit it. I know my new Motherboard will support it.

So that's it, Can I run faster RAM than my CPU / Motherboard support?

Sorry that it's a little jumbled up, I'm really confused.. :/

Thanks!
My Rig
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Intel i5 4670k MSI Z87-G45 EVGA GeForce GTX 770 Superclocked ACX 2GB Corsair Vengeance Pro 1600Mhz 8gb 
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Seagate Barracuda 1tb  Samsung Evo  LG GH22NS70 Coolermaster V8 
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My Rig
(16 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 4670k MSI Z87-G45 EVGA GeForce GTX 770 Superclocked ACX 2GB Corsair Vengeance Pro 1600Mhz 8gb 
Hard DriveHard DriveOptical DriveCooling
Seagate Barracuda 1tb  Samsung Evo  LG GH22NS70 Coolermaster V8 
OSMonitorKeyboardPower
Windows 7 24" Acer Microsoft Keyboard FSP Aurum 750W 80+ Gold  
CaseMouseMouse PadAudio
Fractal Design Arc Midi r2 Logitech G600 Custom BMTH Mouse Pad Razer Electras 
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post #2 of 3
Ram Speed listed in the "specs" list is what intel and AMD will gaurentee will work, Most core i series can do 1600mhz without an issue, With the latest doing 2133+ all depends on the IMC
MEGATRON
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 4710MQ P170-SM-A Nvidia GTX 970M 32GB DDR3L 1600mhz 
Hard DriveHard DriveHard DriveOptical Drive
Samsung SSD 840 EVO Msata 250GB SanDisk SDSSDX120GG25 HGST 1TB Blu-Ray 
CoolingOSMonitorKeyboard
OverCharged Cage fans Windows 8.1 + Virtual Machines Modified 1080P glossy IPS 60hz Stock 
Power
240 Watt Brick 
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MEGATRON
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 4710MQ P170-SM-A Nvidia GTX 970M 32GB DDR3L 1600mhz 
Hard DriveHard DriveHard DriveOptical Drive
Samsung SSD 840 EVO Msata 250GB SanDisk SDSSDX120GG25 HGST 1TB Blu-Ray 
CoolingOSMonitorKeyboard
OverCharged Cage fans Windows 8.1 + Virtual Machines Modified 1080P glossy IPS 60hz Stock 
Power
240 Watt Brick 
  hide details  
Reply
post #3 of 3
The maximum RAM speed depends on your CPU. You can run any RAM like DDR3-2133, DDR3-2800, and such without a problem. With RAM, the high speed has to be enabled by the user, it is not plug and play. This allows any DDR3 computer to use most DDR3 memory. Many people will buy extreme RAM thinking it will just work at the high speed, so when they find out it does not, they think the RAM is bad and complain.

Feel free to get a high speed like DDR3-2133+, you can run it at DDR3-1333 with very low timings. Then once you upgrade CPU and motherboard, you can unleash the full power of the RAM.

Cheers
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