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Thread: Rampage Extreme - the truth about OC and DDR3?

  1. #1
    Xtreme Member
    Join Date
    Mar 2007
    Posts
    239

    Rampage Extreme - the truth about OC and DDR3?

    Hi all,

    I've been doing some research regarding the Asus Rampage Extreme (x48 chipset), more specifically concerning the best memory to use for it.

    The general consensus seems to be that it's best to stick to 1GB DIMM's and keep this to 2x1GB (best) or 4x1GB (possible) when intending to overclock.

    Some others have said 2x2GB is fine for overclocking too.

    I've also stumbled across quite a few people saying 4x2GB is very problematic at 1600MHz or higher memory speeds but then a few others have been along the lines of "I am running 4x2GB at PC2-12800 speeds just fine, 24h Prime95 stable etc.). They don't appear to be talking BS.

    It would appear that despite it not officially supported by Intel (the X48 chipset that is), the Rampage Extreme can be a good overclocking with all four DIMM slots filled. From my findings I believe it's just down to the memory IC's...

    So here's my question. What do you guys and gals think? Are the new Corsair/G.Skill/Geil Lynnfield qualified kits (kits of 2 DIMM's) that run at 1.65V and feature Elpida BBSE's (if I'm right) OK for the Rampage Extreme, or should I stick to the older 1.7-1.9V DDR3 kits that are becoming rare now?

    Corsair has some nice Dominator GT kits out there now so perhaps...?

    Looking for 1600-1800MHz memory speed and 8GB if possible.

    Thanks in advance.
    + Asus Maximus Formula II (Bios 2202)
    + Intel Xeon X3370 @ 4.04GHz 1.288V (475x8.5) VID 1.250
    + 4GB Kingston HyperX PC2-9600 DDR2 @ 1199MHz 5-5-5-18-2-30 @ 2.15V
    + BFG Tech 9800GTX+ OC @ 760/1890/2250
    + 4x150GB Raptor X in RAID0 via Adaptec 2405 SAS/SATA
    + Samsung SH-203B
    + Chieftec CFT-850-14C
    + Thermalright 120 Ultra Extreme 2000rpm
    + Windows XP Professional x64
    + Samsung 275T

    Laptop Memory UK

  2. #2
    Xtreme Member
    Join Date
    Dec 2005
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    427
    I think the less memory you use the more overclocking you get.

  3. #3
    Dave's Mentor!
    Join Date
    May 2007
    Location
    montreal
    Posts
    5,217
    you can put in 8 gb but your overclock will suffer bigtime
    i was able to do 1600mhz with 8gb of d9
    it gets even worse with quads

    maximus IV extreme gtx580
    gigabut p67-ud7
    p67 sabertooth
    2500k+2600k
    antec 1200watt
    EVGA classified 760
    920 Batch# 3849B018 4.985ghz@1.52v gtx285 ftw sli
    OCZ3RPR1866LV6GK hypers
    dfi ut p35 rampage extreme
    gigabut p35c-ds3r bios suks
    gigabut x38-d6q dead thank god
    ballistix 8500 1240mhz@2.02v

  4. #4
    Xtreme Member
    Join Date
    Mar 2007
    Posts
    239
    Friendly bump ...Surely more of you have an opinion?
    + Asus Maximus Formula II (Bios 2202)
    + Intel Xeon X3370 @ 4.04GHz 1.288V (475x8.5) VID 1.250
    + 4GB Kingston HyperX PC2-9600 DDR2 @ 1199MHz 5-5-5-18-2-30 @ 2.15V
    + BFG Tech 9800GTX+ OC @ 760/1890/2250
    + 4x150GB Raptor X in RAID0 via Adaptec 2405 SAS/SATA
    + Samsung SH-203B
    + Chieftec CFT-850-14C
    + Thermalright 120 Ultra Extreme 2000rpm
    + Windows XP Professional x64
    + Samsung 275T

    Laptop Memory UK

  5. #5
    Admin
    Join Date
    Dec 2003
    Location
    Hillsboro, OR
    Posts
    5,275
    2x2 gigs of elpida works like a charm, can't comment on more.

  6. #6
    Xtreme Member
    Join Date
    Dec 2008
    Posts
    113
    2x2gb of micron works great here.
    Haven't been able to test any more than that though.

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