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
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

System Name	DEVIL'S ABYSS
Processor	i7-4790K@4.6 GHz
Motherboard	Asus Z97-Deluxe
Cooling	Corsair H110 (2 x 140mm)(3 x 140mm case fans)
Memory	16GB Adata XPG V2 2400MHz
Video Card(s)	EVGA 780 Ti Classified
Storage	Intel 750 Series 400GB (AIC), Plextor M6e 256GB (M.2), 13 TB storage
Display(s)	Crossover 27QW (27"@ 2560x1440)
Case	Corsair Obsidian 750D Airflow
Audio Device(s)	Realtek ALC1150
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

System Name	Bayou Phantom
Processor	Core i7-8700k 4.4Ghz @ 1.18v
Motherboard	ASRock Z390 Phantom Gaming 6
Cooling	All air: 2x140mm Fractal exhaust; 3x 140mm Cougar Intake; Enermax T40F Black CPU cooler
Memory	2x 16GB Mushkin Redline DDR-4 3200
Video Card(s)	EVGA RTX 2080 Ti Xc
Storage	1x 500 MX500 SSD; 2x 6TB WD Black; 1x 4TB WD Black; 1x400GB VelRptr; 1x 4TB WD Blue storage (eSATA)
Display(s)	HP 27q 27" IPS @ 2560 x 1440
Case	Fractal Design Define R4 Black w/Titanium front -windowed
Audio Device(s)	Soundblaster Z
Power Supply	Seasonic X-850
Mouse	Coolermaster Sentinel III (large palm grip!)
Keyboard	Logitech G610 Orion mechanical (Cherry Brown switches)
Software	Windows 10 Pro 64-bit (Start10 & Fences 3.0 installed)

System Name	micropage7
Processor	Intel Xeon X3470
Motherboard	Gigabyte Technology Co. Ltd. P55A-UD3R (Socket 1156)
Cooling	Enermax ETS-T40F
Memory	Samsung 8.00GB Dual-Channel DDR3
Video Card(s)	NVIDIA Quadro FX 1800
Storage	V-GEN03AS18EU120GB, Seagate 2 x 1TB and Seagate 4TB
Display(s)	Samsung 21 inch LCD Wide Screen
Case	Icute Super 18
Audio Device(s)	Auzentech X-Fi Forte
Power Supply	Silverstone 600 Watt
Mouse	Logitech G502
Keyboard	Sades Excalibur + Taihao keycaps
Software	Win 7 64-bit
Benchmark Scores	Classified

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

System Name	Hellbox 5.1(same case new guts)
Processor	Ryzen 7 5800X3D
Motherboard	MSI X570S MAG Torpedo Max
Cooling	TT Kandalf L.C.S.(Water/Air)EK Velocity CPU Block/Noctua EK Quantum DDC Pump/Res
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.
Audio Device(s)	Soundblaster ZX/Logitech Z906 5.1
Power Supply	Seasonic TX~’850 Platinum
Mouse	G502 Hero
Keyboard	G19s
VR HMD	Oculus Quest 2
Software	Win 10 Pro x64

Processor	Intel Core i7 10850K@5.2GHz
Motherboard	AsRock Z470 Taichi
Cooling	Corsair H115i Pro w/ Noctua NF-A14 Fans
Memory	32GB DDR4-3600
Video Card(s)	RTX 2070 Super
Storage	500GB SX8200 Pro + 8TB with 1TB SSD Cache
Display(s)	Acer Nitro VG280K 4K 28"
Case	Fractal Design Define S
Audio Device(s)	Onboard is good enough for me
Power Supply	eVGA SuperNOVA 1000w G3
Software	Windows 10 Pro x64

System Name	Starlifter :: Dragonfly
Processor	i7 2600k 4.4GHz :: i5 10400
Motherboard	ASUS P8P67 Pro :: ASUS Prime H570-Plus
Cooling	Cryorig M9 :: Stock
Memory	4x4GB DDR3 2133 :: 2x8GB DDR4 2400
Video Card(s)	PNY GTX1070 :: Integrated UHD 630
Storage	Crucial MX500 1TB, 2x1TB Seagate RAID 0 :: Mushkin Enhanced 60GB SSD, 3x4TB Seagate HDD RAID5
Display(s)	Onn 165hz 1080p :: Acer 1080p
Case	Antec SOHO 1030B :: Old White Full Tower
Audio Device(s)	Creative X-Fi Titanium Fatal1ty Pro - Bose Companion 2 Series III :: None
Power Supply	FSP Hydro GE 550w :: EVGA Supernova 550
Software	Windows 10 Pro - Plex Server on Dragonfly
Benchmark Scores	>9000

System Name	Lynni PS \ Lenowo TwinkPad T480
Processor	AMD Ryzen 7 7700 Raphael \ i7-8550U Kaby Lake-R
Motherboard	ASRock B650M PG Riptide Bios v. 2.02 AMD AGESA 1.1.0.0 \ Lenowo 20L60036MX Bios 1.47
Cooling	Noctua NH-D15 Chromax.Black (Only middle fan) \ Lenowo WN-2
Memory	G.Skill Flare X5 2x16GB DDR5 6000MHZ CL36-36-36-96 AMD EXPO \ Willk Elektronik 2x16GB 2666MHZ CL17
Video Card(s)	Asus GeForce RTX™ 4070 Dual OC GPU: 2325-2355 MEM: 1462\| Nvidia GeForce MX™ 150 2GB GDDR5 Micron
Storage	Gigabyte M30 1TB\|Sabrent Rocket 2TB\| HDD: 10TB\|1TB \ SKHynix 256GB 2242 3x2
Display(s)	LG UltraGear 27GP850-B 1440p@165Hz \| LG 48CX OLED 4K HDR \| AUO 14" 1440p IPS
Case	Asus Prime AP201 White Mesh \| Lenowo T480 chassis
Audio Device(s)	Steelseries Arctis Pro Wireless
Power Supply	Be Quiet! Pure Power 12 M 750W Goldie \| 65W
Mouse	Logitech G305 Lightspeedy Wireless \| Lenowo TouchPad & Logitech G305
Keyboard	Akko 3108 DS Horizon V2 Cream Yellow \| T480 UK Lumi
Software	Win11 Pro 23H2 UK
Benchmark Scores	3DMARK: https://www.3dmark.com/3dm/89434432? GPU-Z: https://www.techpowerup.com/gpuz/details/v3zbr