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Mixed brand ram ?

Oct 19, 2007
888 (0.24/day)
System Name xubidoo
Processor Intel Q6600 G0 2.4ghz
Motherboard ASUS P5K Premium:Black Pearl Edition
Cooling Arctic Cooling Freezer 7 Pro + MX2
Memory 4gb Corsair XMS2 DDR2 6400 2x 2gb 5-5-5-18 @854
Video Card(s) MSI nVidia GTX260 896mb or GeForce GTX 750Ti 2048mb
Storage WD 640gb / Samsung 750gb / WD 500gb
Display(s) Hanns-G 23"
Case Thermaltake Armour VA8003BWS/1x250mm/2x120mm/2x92mm
Audio Device(s) Logitech Z-10 2.0 Speakers
Power Supply Antec 550w
Mouse Razer Deathadder
Keyboard Standard
Software Windows 7 Professional x64
in my 2nd PC ive currently got 2x1gb of Corsair XMS2 ,and im getting another 2x1gb of G-Skill off a friend for £10/$17?

My question being can i use all 4gb in the same machine ok and still keep its OC settings even tho the ram is different brands and slightly different speeds?

Corsair is 5-5-5-18

G-Skill is 5-5-5-15

the Corsair is currently running at approx 808mhz ,so would this work or would i be better getting rid of the slightly slower Corsair and keeping the G-Skill ?

Sep 15, 2004
1,561 (0.32/day)
System Name HAL
Processor Core i5 2500K
Motherboard Asus P8P67 Pro Rev3.1
Cooling stock
Memory 2x4GB Kingston 1600Mhz Blu
Video Card(s) Asus 560Ti DirectCuII TOP
Storage Kingston 120 3K SSD,WD Black WD1502FAEX
Display(s) LG 1440x900
Case Chieftec Mesh Midi
Audio Device(s) onboard
Power Supply Corsair TX750V2
Software w8
You will never know unless you try this but mostly these ideas work pretty well and stable.
Feb 7, 2006
709 (0.16/day)
Austin, TX
System Name WAZAAM!
Processor Intel i5-2500k - 4.4GHz @ 1.3v
Motherboard ASUS Maximus IV Extreme-Z (z68)
Cooling HSF:: Noctua NH-D14 || CASE:: 2x Intake: Noctua NF-P12-1300 | 2x Exhaust: Noctua NF-S12B
Memory G.Skill RipJaws 16GB (4x4GB) @ 1866MHz | 10-10-10-28-2T @ 1.35v
Video Card(s) EVGA GeForce GTX 1070 8GB SC
Storage Crucial 1.4TB P420m PCIe (boot & steam) | 4x Ultrastar 2TB in Storage Spaces Parity (Media)
Display(s) 3x1 nVidia Surround | Three Dell U2412m - 24" e-IPS 1920x1200
Case Antec P183 - Custom Interior Paint Job
Audio Device(s) Onboard - Bose Companion 2 Speakers
Power Supply CORSAIR Professional Series HX850
Keyboard Corsair K95 RGB
Software Windows 10 Pro
Benchmark Scores Server -- Inte 4c Atom C2550D -- 2x4GB G.Skill 1866MHz DDR3 -- 100GB OS SSD -- 4x 2TB 5400 RAID5
In my experience, the last number in the timings quad doesn't do anything for performance, but does a ton for stability.

If you use all 4GB, and set it at 5-5-5-18 (or 5-5-5-21), you'll keep the overclock.

But I'm not too up on Intel (I'm an AMD boy!). You might end up needing to go to 2T instead of 1T, or loosen the timings since you're using 4 slots instead of 2.
Mar 27, 2007
806 (0.21/day)
Tampa FL
Processor AMD Ryzen 1700X
Motherboard Asus Prime X370 Pro
Cooling Corsair Hydro Series H110i
Memory 16 GB Corsair Vengeance LPX DDR4 3000 Mhz CAS 15
Video Card(s) Asus Radeon RoG RX 480 Strix OC 8GB
Storage Samsung EVO 850 1 TB
Display(s) Asus PB258Q 25" 2560x1440
Case Cooler Master Master Case 5 Pro
Power Supply Corsair HX 850
Software Windows 10 Pro 64
It shouldn't effect your oc I have both mixed brand, centon and nspire, and sizes, 2 x 2Gb and 2 x 512Mb. And can run at 3.32 ghz on the stock hsf with my 5600+ Brisbane