DDR3-1866 Running At 1600Mhz. No Other Threads Have Fixed My Issue, PLEASE HELP!

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AstoSoup

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May 7, 2013
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Having some problems since upgrading from the Athlon II x4 645, system specs are as follows.

CPU - AMD FX-8320 4.0Ghz 8 Core. 16Mb Cache @4.3Ghz

CPU Cooling - Super Cool Hydro Series, copper bypass, 92mm PWM fan.

Memory - 8GB (2X4GB) G. Skill Ripjaws-X Series DDR3-1866, 9-10-9-28

Motherboard - Biostar TA970 ATX. AMD-970 Chipset, UEFI BIOS, SATA 6Gb/s, USB 3.0, 2x PCIE 3.0x16,

GPU - 2x Crossfired MSI Radeon HD7770 Ghz Edition 1GB, 128 bit, Dual Fan, Copper Pipe Bypass Cooling, 640 cores

Hard Drive(s) -
System - 128GB Plextor M5S Pro Series SSD, SATA 6GB/s, 256Mb cache. Read Speed - 540MB/s, Write Speed - 330MB/s

Internal Storage - 1TB WD Blue SATA 6Gb/s, 32Mb Cache, 7200 RPM


Case - In-Win Plastic and Titanium, 6x 120mm fans (3 in, 3 out), bottom mount PSU w/ 140mm intake fan.

PSU - Coolmax 580W SLI/Xfire Certified, 140mm intake fan, 80 Plus Bronze

O.S - Windows 7 Home Premium X64

Front bay, 5 Channel digital touch screen fan controller/ temp. monitor. Controls each fan separately, as well as temperature monitors in 5 different zones.
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The Athlon II x4 645's memory controller only supported DDR3-1333, so I upgraded to the FX-8320 8 core, for that and many other reasons. I installed the 8320, and now my memory is running at 1600 Mhz. I went into Bios and tried both XMP profiles, (DDR3-1866 9-10-9-28 and DDR3 1867 9-10-9-28). Choosing these only results in no boot and me resetting BIOS to get back to business. There is also a "Manual" setting, where its a normal memory profile, user selects speed. I tried setting that to 1866Mhz, only to get the same result as the XMP profile. The only way I can get my memory anywhere near 933Mhz in CPU-Z, is to raise the FSB speed from 200, to 225. The computer however, runs much faster when using the multiplier to overclock; even the WEI score is much higher. Does anyone know of any other path to take so that my memory will run at its full potential? I know it isn't a HUGE difference but I paid a little extra for 1866 and would like to see it. Thanks in advance!

Matthew
 
Solution
Tradesman1
With your OC in place - go into BIOS, and set the DRAM freq to 1866, set the bases timings to spec, then find the DRAM voltage and raise it to + 0.075 higher than spec - i.e. if your DRAM is 1.5 (hopefully) then set it to 1.575, if you have the higher voltage DRAM 1.6 set to 1.65 and if you have the 1.65 sticks leave at stock (and cross fingers), then look for the CPU/NB Voltage and set it to 1.25 if your sticks are spec 1.5, if your sticks are spec 1.65 then we need the CPU/NB higher so set it to 1.33
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When I overclock the CPU using just the multiplier, the memory frequency does not move, stays at 800Mhz. If I overclock by raising FSB, the memory will make it to about 1760Mhz before system comes unstable. I am trying to use the multiplier to overclock, as I have heard this is the best way, while achieving the 1866Mhz speed on my memory.
 
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I can raise the muliplier, or the FSB without having to touch voltage. The computer runs fine with the CPU overclocked, my problem is getting the memory to run at its native speed of 1866Mhz. The board and CPU both support this speed, I dont see why it will not boot to BIOS if 1866 speed is selected in BIOS.
 
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In other words, is there any way to get my memory up to 1866Mhz base speed, without increasing the FSB? The system does not perform as well when I use FSB to overclock as when using the multiplier. The difference is incredible!
 
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With your OC in place - go into BIOS, and set the DRAM freq to 1866, set the bases timings to spec, then find the DRAM voltage and raise it to + 0.075 higher than spec - i.e. if your DRAM is 1.5 (hopefully) then set it to 1.575, if you have the higher voltage DRAM 1.6 set to 1.65 and if you have the 1.65 sticks leave at stock (and cross fingers), then look for the CPU/NB Voltage and set it to 1.25 if your sticks are spec 1.5, if your sticks are spec 1.65 then we need the CPU/NB higher so set it to 1.33
 
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Solution
Timings? I had to look up my ram's timing online because it was running at 1333Mhz (changed to 1600Mhz in bios but wouldn't go up to it's base 1866Mhz).
Once I changed the timings I was able to set it at what it was supposed to be (1866).
 
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When using the XMP, the timings change automatically to 9-10-9-28. So i'm figuring that isnt the problem and while I have quite a bit of knowledge with computers, have never had anything but bad luck when messing with memory timings lol. Although, if the voltage dont solve the problem, I will be willing to try anything.
 
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Ok, I will give that a try Tradesman. Two questions before I start, Should I use XMP 1866 or use manual setting and select 1866 as my speed? I'm not familiar with this XMP (Xtreme Memory Profile) feature so I'm not sure whether or not to use it. Secondly, if this voltage increase does not work, can it harm my components or brick my rig in any way? Sorry, i'm just a very cautious person lol
 
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You said to put the voltages at 1.575 and 1.25, however my voltages interval by tens;( i.e 1.10,1.20 etc.). So not wanting to over power the modules, I chose 1.50v Dram and 1.20v CPU/NB, to be safe. I used the XMP 1866Mhz option, and got the same no boot, no BIOS. Before I tried it with regular 1866 (no XMP), I wanted to let you know about the voltage settings. And because my BIOS isn't like my old board where I could remove the battery, this one I have to use the jumpers, using needle nose pliers because they are almost under my GPU's lol....takes me 15 mins.! But anyways, should I go to 1.6v Dram and 1.3 CPU/NB? Or is there another option or combination? Would reallly like to get this memory running at its intended speed while not damaging anything lol. Thanks again!

Matthew
 
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