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Mixing 1.65v with 1.8v Ram in Sandy Bridge?

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  • Mixing 1.65v with 1.8v Ram in Sandy Bridge?

    Hello community,
    My current rig is:
    2500K @ 4.5ghz
    Asus P8Z68-v Pro
    2x2Gb DDR3 1600Mhz CL7 (7x7x7x24) 1.65v (from my previous i5 750 Rig, ence the 1.65 voltage, but I´ve been running it at 1.6v with advertised 7x7x7x24 latency and it just works!)
    2 x gtx570 in Sli
    Vertex 3 120Gb
    Corsair 750w, etc.
    I use it manly for heavy gaming (Batman, BF3, etc). I ´ve been thinking about adding more ram and found this used kit for 15€:
    2GB (2x1024MB) D/C Kit PN - OCZ3P16002GK
    1600MHz DDR3* CL 7-7-7-24(CAS-TRCD-TRP-TRAS)
    Lifetime Warranty 1.7 Volts 240Pin DIMM
    Special Features 1.8 Volts EVP***
    It is my understanding that this Ram is from the Core2 duo generation, and that the 7x7x7x24 latency is acomplished at 1.8v, but correct me if I´m wrong. I´ve been searching for a cheap way to add more ram and for a ram with similar speed and latency to my current one.
    So my questions are:
    - Do you believe I can I mix this 2 kits? Will the 1.8v ram run at 1.65v with the advirtised speed and latency or should I just buy a 2x4Gb 1.5v 1600Mhz CL9 new kit for 50€?
    - Is it worth it and will i see real performance gains upgrading from 4Gb to 6Gb or even 8Gb, in windows and in games? What´s your personal experience?
    - Do you reccomend a specific ram kit for my rig?
    Thanks in advance for your input, guys!
    Cheers,
    André
    Asus P8Z68-V Pro; i5 [email protected]; 2x GTX570 in SLI (850x2050 clocks); 8GB DDR3 1600Mhz; Asus Xonar Dx; Vertex 3 120Gb + 1TB HDD; Corsair Tx750w; CoolerMaster Storm Scout; Benq W700 720p 3D Vision Projector, 88´´ Screen, Sony 5.1 Home Cinema

  • #2
    Re: Mixing 1.65v with 1.8v Ram in Sandy Bridge?

    mixing ram is always a bad idea, i know of people that have trouble even with the same brand and model. They bought 2x 8gb kits (4x 4gb total) ... same brand, model etc .. but they didn't work together. However, thats rare.

    i would go with the same brand and model you already have ... its not like the ddr/ddr2 times where you could mix and match pretty much like it pleased.
    My advice - never visit a short-url, no matter who gives it to you. You can't trust any source at any time when you don't know your target
    Whitey: ROG Crosshair V Formula/Thunderbolt, AMD 1090T @ 3.2GHz w. NZXT Havic 140, Corsair XMS3 1333 8GB kit, HIS IceQ X HD 6870, Corsair Force GT 120GB, OCZ Vertex4 256GB, Kingston SSDNow 16GB, Samsung 500GB 3½" in casedock when needed, Chieftec Nitro88+ 650W, NZXT H2 White, 3x Asus VS248 24"
    Snuggles: Zotac Zbox HD-ID40 (Atom d525, worst purchase ever on cpu), Patriot Pyro 60GB (Thanks to Tweaktown Giveaway), 4GB 800' DDR2 SO-DIMM
    Bcube (NAS): ASUS F1A75-I Deluxe, AMD A6-3500 @ 2.1GHz, LSI 9240-8i (M1015) controller, GSkill Ares 1866 8GB blue kit, 4x Seagate SV35.5 2TB, 1x Seagate Barracuda 1.5TB, 1x Samsung HD103UJ, 1x Samsung F4 2TB, Temp. Rebel9 Alu case, Corsair H60, 2x Icy Dock MB973SP-B, NZXT UI01, Enermax T.B. Silence on docks and cpu, Aurum 500W gold PSU. (Draws 65W average, doesn't peak above 100W at any time)

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    • #3
      Re: Mixing 1.65v with 1.8v Ram in Sandy Bridge?

      no higher than 1.6v for ram on sandybridge,if your ram is stable and you can get the 1.8v ram stable at 1.6v then go for it,ram is cheap now anyway so why not buy the propper type for your board? it will run better
      Gigabyte z77x UP4-TH F11c Modded Bios
      Intel i7 3770k 24/[email protected] 1.38v Turbo llc +0.165v dvid multithreading enabled
      Samsung Green(MV-3V4G3D/US) 8GB @2133mhz 9-10-10-21-1t 1.55v
      Thermalright Silver Arrow Cpu Cooler
      1xSamsung 840 pro 256 Gb SSD windows 8.1 pro 64bit
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      Powercolor 7970 3gb V3 @1150mhz core/1700mhz mem,1.150v Accelero aftermarket air cooler 55c max
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      Logitech X-530 5.1 Speakers
      Lite-On iHAS124-19 24x Sata DVDRW
      K-World Hybrid DVB-T 210SE Digital T.V Card
      L.G E2260V L.E.D 1920x1080 Monitor
      Xfx Pro 750w silver rated Psu 80+
      Fractal Arc Midi Case

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