Ussing 2 different DDR3 RAM's with different speed

saknid · Mar 20, 2017

Hello Team,

Is It possible to use 2 different RAM with different speed in same system.

Current Config

Core i5 4440
MSI H97M-G43 Mobo
GTX 1060

Current RAM (2 slots 4 GB each)
G.Skill RipjawsX 4GB F3-12800CL9S-4GBXL

Looking to add a new

Kingston HyperX FURY Memory DDR3 8 GB PC (HX318C10F/8)

As much I know it should be ok untill and unless using same DataRate which is supported by Mobo that is DDR3.

Hood · Mar 20, 2017

It should work, but BIOS will probably set all RAM to the lowest speed DIMM (1600, maybe 1333) and run in single channel because of mismatched DIMMs. That will result in worse memory performance, unless you are frequently using more than 8GB. If you ARE running low on memory, the extra 8GB will let you multi-task longer. Most RAM is so fast, you won't really notice the difference between single and dual channel operation. I would just try it, and see if it boots and recognizes all sticks.

saknid · Mar 20, 2017

Hood said:
It should work, but BIOS will probably set all RAM to the lowest speed DIMM (1600, maybe 1333) and run in single channel because of mismatched DIMMs. That will result in worse memory performance, unless you are frequently using more than 8GB. If you ARE running low on memory, the extra 8GB will let you multi-task longer. Most RAM is so fast, you won't really notice the difference between single and dual channel operation. I would just try it, and see if it boots and recognizes all sticks.

So issue I am facing is utilizing almost all of RAM while running some application (usual development kit and performance test tools) such as some times it shows RAM utilization to almost 90% or even more...resulting into system freeze or restart.

So, as per your comment it may not be best choice but yes it will help in multitasking, and it wont do any hardware damage (which was my concern as I dont know much)

rtwjunkie · Mar 20, 2017

saknid said:
So, as per your comment it may not be best choice but yes it will help in multitasking, and it wont do any hardware damage

It's far from ideal, but if you need the capacity of extra RAM, yes it will help, and no, it won't damage anything.

micropage7 · Mar 20, 2017

and dont forget some ram may not work if they are different. back to compability

saknid · Mar 21, 2017

rtwjunkie said:
It's far from ideal, but if you need the capacity of extra RAM, yes it will help, and no, it won't damage anything.

micropage7 said:
and dont forget some ram may not work if they are different. back to compability

Ok, I am getting this one...

https://www.flipkart.com/g-skill-ri...8gbxl/p/itmd67pzh7k5vhjw?pid=RAMEEXSXGSA6TA3V

INSTG8R · Mar 21, 2017

The board will always default to the "lowest and slowest" of mixed RAM So ideally you want to get as "close" as you can to what you have.

EarthDog · Mar 21, 2017

saknid said:
Hello Team,

Is It possible to use 2 different RAM with different speed in same system.

Current Config

Core i5 4440
MSI H97M-G43 Mobo
GTX 1060

Current RAM (2 slots 4 GB each)
G.Skill RipjawsX 4GB F3-12800CL9S-4GBXL

Looking to add a new

Kingston HyperX FURY Memory DDR3 8 GB PC (HX318C10F/8)

As much I know it should be ok untill and unless using same DataRate which is supported by Mobo that is DDR3.

Though it "should" work... by setting the lower clock speed of the two, it really isn't something taht should be done... if only for the sake of stability.

newtekie1 · Mar 21, 2017

Hood said:
and run in single channel because of mismatched DIMMs

That usually doesn't happen anymore. It will instead run in asynchronous dual-channel. Where it will use 4GB of the 8GB stuck to match the other 4GB stuck, and run that in dual-channel, then the left over 4GB will be accessed in single channel. So once you surpass the 8GB usage mark, the speed will drop to single channel speed. But it won't slow down the first 8GB like it used to in the old days.

If the OP really is running out of RAM at 8GB, adding 4GB more, even if that 4GB runs at single channel, is better than nothing.

hat · Mar 21, 2017

It'll work, but it's not ideal. It's best to have a matching set. I'd spring for a fresh 16gb kit if possible if I were you.

saknid · Mar 25, 2017

hat said:
It'll work, but it's not ideal. It's best to have a matching set. I'd spring for a fresh 16gb kit if possible if I were you.

So either I would get 2 4gb same ram stick or whole new 16 gb kit....

It seems that is what you all are asking...correct me If m wrong the RAM is nt delivered yet...I can get smw thing else...

Shou Miko · Mar 25, 2017

@saknid as the others say shouldn't be a pro blem just keep in mind that your motherboard will slow the fastest DDR3 ram down to the clocks of the slowest.

Like if u pair a set of 1600mhz and 1886mhz the kit that's set to run 1866mhz will be down clocked to 1600mhz because your motherboard don't know if your 1600mhz memory can run 1866mhz.

saknid · Mar 25, 2017

puma99dk| said:
@saknid as the others say shouldn't be a pro blem just keep in mind that your motherboard will slow the fastest DDR3 ram down to the clocks of the slowest.

Like if u pair a set of 1600mhz and 1886mhz the kit that's set to run 1866mhz will be down clocked to 1600mhz because your motherboard don't know if your 1600mhz memory can run 1866mhz.

Now I get it...thank you brother...

Shou Miko · Mar 25, 2017

@saknid I am glad I can help that's what I am here for

cornemuse · Mar 25, 2017

I've mixed ram before, usually (most of the time) it has worked, occasionally not.

System Name	Devil's Hell
Processor	AMD Ryzen™ 5 2600X Processor 2nd Gen 3.6GHz
Motherboard	MSI X470 GAMING PRO MAX
Cooling	Corsair H60 (2018) 57.2 CFM Liquid CPU Cooler
Memory	Corsair Vengeance RGB Pro 16 GB (2 x 8 GB) DDR4-3200 CL16
Video Card(s)	MSI GTX 1060 Gaming X 6GB
Storage	Segate 2 TB, WMD 250 GB M2
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Power Supply	Cooler Master V1000
Mouse	Ttsports Talon Blu
Keyboard	Logitech G510
Software	Windows 10 Pro x64 version 1803
Benchmark Scores	Passmark CPU score = 13080

System Name	Devil's Hell
Processor	AMD Ryzen™ 5 2600X Processor 2nd Gen 3.6GHz
Motherboard	MSI X470 GAMING PRO MAX
Cooling	Corsair H60 (2018) 57.2 CFM Liquid CPU Cooler
Memory	Corsair Vengeance RGB Pro 16 GB (2 x 8 GB) DDR4-3200 CL16
Video Card(s)	MSI GTX 1060 Gaming X 6GB
Storage	Segate 2 TB, WMD 250 GB M2
Display(s)	Samsung T23B350AR
Case	Cooler Master MasterBox Lite 5 RGB ATX Mid Tower
Audio Device(s)	Motherboard
Power Supply	Corsair TXM Gold 650 W 80+ Gold Certified Semi-modular ATX Power Supply
Mouse	Logitech
Keyboard	Logitech
Software	Windows 10 64 Bit

Processor	Core i9-9900k
Motherboard	ASRock Z390 Phantom Gaming 6
Cooling	All air: 2x140mm Fractal exhaust; 3x 140mm Cougar Intake; Enermax ETS-T50 Black CPU cooler
Memory	32GB (2x16) Mushkin Redline DDR-4 3200
Video Card(s)	ASUS RTX 4070 Ti Super OC 16GB
Storage	1x 1TB MX500 (OS); 2x 6TB WD Black; 1x 2TB MX500; 1x 1TB BX500 SSD; 1x 6TB WD Blue storage (eSATA)
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Processor	Intel Xeon X3470
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Cooling	Enermax ETS-T40F
Memory	Samsung 8.00GB Dual-Channel DDR3
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Power Supply	Silverstone 600 Watt
Mouse	Logitech G502
Keyboard	Sades Excalibur + Taihao keycaps
Software	Win 7 64-bit
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Ussing 2 different DDR3 RAM's with different speed

saknid

Hood

saknid

rtwjunkie

PC Gaming Enthusiast

micropage7

saknid

INSTG8R

Vanguard Beta Tester

EarthDog

newtekie1

Semi-Retired Folder

hat

Enthusiast

saknid

Shou Miko

saknid

Shou Miko

cornemuse

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Memory	2x16GB Gskill Trident Neo Z 3600 CL16
Video Card(s)	Powercolor Hellhound 7900XTX
Storage	970 Evo Plus 500GB 2xSamsung 850 Evo 500GB RAID 0 1TB WD Blue Corsair MP600 Core 2TB
Display(s)	Alienware QD-OLED 34” 3440x1440 144hz 10Bit VESA HDR 400
Case	TT Kandalf L.C.S.
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Power Supply	Seasonic TX~’850 Platinum
Mouse	G502 Hero
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Software	Win 11 Pro x64

Processor	Intel Core i7 10850K@5.2GHz
Motherboard	AsRock Z470 Taichi
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Processor	i7 2600k 4.4GHz :: i5 10400
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Cooling	Cryorig M9 :: Stock
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