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how to overclock ram to 2133MHZ for MSI z77a-GD65 - Page 2

post #11 of 21
Yea. I suggested it but that didnt work before. Lets see if it's work with the oc genies turned off etc.
    
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post #12 of 21
Thread Starter 
Ok now it seems whenever i enable xmp the system does not work. By restoring to default bios all I can seem to do is get to 1866 MHz. Then when i enable xmp or go to 2000 MHz is just crashes it just hangs up and won't start.

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=2952327&Sku=C13-5726

This is the memory I purchased (twice). Its also odd that when I play around with the frequencies the voltage sometimes show 1.5 and sometimes shows 1.65. The only way I know how to manually change the voltage is thru the OC genie.

I appreciate your help guys but I somethings to do. Ill check back later or tomorrow.

Thanks again.
post #13 of 21
Theres still a settings conflict. The voltage reading is giving it away.

OK, I dont have an MSI board, so I'm not intimately familiar with OC Genie or the ability to enable/disable XMP profiles.

My board has similar, but its called something else and I just do everything manually.

In theory, "enabling" XMP itself as a BIOS option is going to set the DRAM profiles to whatever is programmed into the RAM sticks from their factory. If this conflicts with manual settings, then theres potential for problem.

It is my understanding that OC Genie was a MSI "gimmick" feature that attempted to overclock your system based on who knows what that MSI cooked up in their labs.

What you are needing is full manual control. Now, maybe I am wrong, and OC Genie is how you enable full manual control. Maybe that is what needs to be enabled, and XMP turned "off".

Because it REALLY sounds like you are setting things manually and then some other "feature" in the BIOS is trying to override those settings.

I'm trying to take insight into your posts to figure out how your BIOS works. You say that you can adjust speed to 1866 and then you enable XMP. Why? Is that the only way that you can adjust timings and voltage? On the screen where you are adjusting RAM Speed, is there no option to manually adjust everything else?

Just to be clear, speed, timing, and voltage are 3 separate parameters that must each be dealt with.

And we haven't even touched on the fact that the board may not be able to support 4 sticks at that speed. Sometimes its an issue.

LoL, this is driving me nuts. I wish I had access to the board. Most manuals are horrible when it comes to overclock settings. According to the manual for that board, it appears that all of these things can be set and controlled INDEPENDENTLY of OC Genie and XMP profiles. I'm seeing advanced settings menus that allow you to control everything.

OC Genie is referenced as something for beginners to use when they dont know exactly what to set, and XMP profiles is referenced as letting the motherboard decide what settings to use based on what is programmed on the RAM sticks. Neither of these are really desirable. I think the confusing part is the fact that the advanced settings are either buried in, or tied to OC Genie somehow.
Edited by Baskt_Case - 5/16/13 at 1:16pm
    
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post #14 of 21
Thread Starter 
Ok I figured out how to manually adjust voltages without OC genie.

You just use the "+" and "-" keys. However I think Im giving up for a while I can run it at 1600MHz stable and no higher by just manually adjusting frequency.
XMP always hanged up system when turned on. I'm afraid to touch the voltages without someones advice. The ram is 1.5 volt and thats was it is reading. I don't know if thats fine and/or something else needs upped or what.
post #15 of 21
Ok, good, making progress.

Now, when you increase RAM speed, the timings need to increase as well. So, if the board has already set the timings at something like 9-9-9-27, when you increase the speed to 1866 or higher, those low timings are going to cause a crash. You will have to manually increase them.

So, you now know how to set the speed. You've figured out how to set voltage. Now you need to figure out how to set timings. Specifically 11-11-11-27 for your Corsair RAM.

As for the voltage, it is rated to run at 1.5v, so dont feel bad for not wanting to increase the voltage. That being said, JEDEC specifies that DDR3 chips must be able to take up to 1.95v with no damage. It is not uncommon to run DDR3 around 1.65v for overclocking purposes. Just so you know. But like I said, I feel like RAM rated at 1.5 should do it no matter what, no voltage increase required.

Open up CPU-Z and see what timings are reported under the Memory Tab.
Edited by Baskt_Case - 5/17/13 at 4:23pm
    
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post #16 of 21
Try each stick out seperately in 1x4 GB setup so you can rule out having a single bum stick.

> If none of the sticks work at XMP settings, it's probably your processor IMC or MOBO that is the problem. It's unlikely that ALL of your four sticks are bad.

Then try each kit in a 2x4 setup and see if it'll work at the rated voltage.

> If it doesn't work, try moving the sticks to the other dual channel slots to rule out having bad ram slots on the motherboard.

THEN try a 4x4 setup.

>You should be able to do with a voltage bump. If you need a bump up the voltage, do so. You are not guaranteed to get two 2x4 kits to work together at the rated speed and timings, only if you buy a 4x4 kit. If you call corsair, they will tell you that.
post #17 of 21
Thread Starter 
Thanks guys.

Lemme see if I can find where the timings are. Hopefully its not my processor or mobo. There both under a year old and I've never tried OC ing till now. At least the mobo has 2 year warranty.

Ill keep in touch.
post #18 of 21
Thread Starter 
Ok I found the DRAM timings by selecting (Link).

Set to:

tCL = 11
tRCD = 11
tRP = 11
tRAS = 27

Set frequency to 1800 MHZ. 1866 booted once then BSOD. Seems ok at 1800MHZ.

CPUZ (Under memory tab) says:

Frequency 900 MHZ...????
FSB:DRAM 1:9
CL = 11 clocks
tRCD = 11 clocks
tRP = 11 clocks
tRAS = 27 clock

CR= 2T

Yeah im concerned about CPUZ showing half the frequency I set in the BIOS.

Theres also a DRAM reference clock in the BIOS currently set to Auto. But options for 200MHZ or 266MHZ. What does this do?
Oh and also XMP is disabled. Voltage automatically jumped to 1.65
post #19 of 21
DDR3 = D.ouble D.ata R.ate 3rd generation

CPU-Z will show half the RAM speed.

900MHz x 2 = 1800MHz thumb.gif

Dont worry about the DRAM Ref Clock. Leave that at 200MHz. This gets into overclocking using the FSB and thats not what were working on here. Not right now anyway.

It's starting to sound like your MoBo is having trouble playing nice with 4 sticks of RAM, which is NOT uncommon.

I would try to follow some of atomicmew's advice and see how it runs with just 2 sticks first.
Edited by Baskt_Case - 5/18/13 at 10:22am
    
CPUMotherboardGraphicsRAM
FX-8350 @ 4.6GHz 1.48v 990FXA-UD3 Pegatron HD6450 1GB 2x4GB G.Skill Sniper 1866 
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WD Blue 500GB Samsung DVD-RW Corsair H100i Win 7 x64 
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LG 32" 720p HDTV SeaSonic M12II 620 Bronze CM 690 II Advanced 
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CPUMotherboardGraphicsRAM
FX-8350 @ 4.6GHz 1.48v 990FXA-UD3 Pegatron HD6450 1GB 2x4GB G.Skill Sniper 1866 
Hard DriveOptical DriveCoolingOS
WD Blue 500GB Samsung DVD-RW Corsair H100i Win 7 x64 
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post #20 of 21
The DRAM reference clock just provides extra granularity. It's what allows you to get speeds like 1866 and 2133 on a 133 clock. which would be impossible with just a 100 clock (Your DRAM speed is: reference clock * integer multiplier). You don't have to worry about it. Your mobo probably have an "auto" setting, so just leave it at that.
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