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Memory Overclock Help

post #1 of 8
Thread Starter 
Hello
I need some help by Ram.My motherboard is ASUSTeK Computer INC. M4A78LT-M (AM3)
and i have 8 Gb/s of Ram KVR1333D3N9 Well i would like to know how to oc ram to make it faster.And what programs for Ram testing do i need .
Thats an picture of my bios
450
And yeah i forgot to say what are my Ram timmings they are
9-9-9-24 .
post #2 of 8
Welcome to OCN thumb.gif

These links may help you in your RAM OC'ing:

http://www.hardwaresecrets.com/article/Understanding-RAM-Timings/26

http://www.hardwaresecrets.com/article/152

http://www.overclock.net/t/1264141/memory-gskill-tridentx-2400-mhz-at-crosshair-v-formula-and-fx-8150

Many folks use MaxxMem or similar programs to view theoretical synthetic performance changes. You should use real applications to see true system performance changes as often the theoretical gains simply do not appear in real apps.

http://www.overclock.net/t/1085742/official-amd-maxxmem-results-rankings
post #3 of 8
Thread Starter 
Well i found this in a thread

The easiest method is to download the manual for your mainboard and consult the memory options in the BIOS listing.
In the BIOS under Advanced and in the JumperFree Configuration area, there is a Memory Clock Mode setting. Set it to Manual. A new option called MemClock Value should open. Select 667MHz. Once you've done that, save and exit. When you boot back up, your memory should be running at (240x6.67=1600.8MHz).
If you weren't overclocking the processor, you would choose the 800MHz setting to get your memory to run at 1600MHz.

Does that mean if i have oced cpu i must ram set to 667mhz because now i have oced amd x2 555 black edition to 4GHZ... Hope that somone can help me ..
post #4 of 8

Binning practices on generic 1333 CL9 kits mean that you may not be able to get that far.  Most generic kits on 4GB DIMMs if they will OC at all top out in the 1425Mhz range.  Most will not run 1600Mhz, esp. with 4GB DIMMs.

post #5 of 8
Quote:
Originally Posted by xd_1771 View Post

Binning practices on generic 1333 CL9 kits mean that you may not be able to get that far.  Most generic kits on 4GB DIMMs if they will OC at all top out in the 1425Mhz range.  Most will not run 1600Mhz, esp. with 4GB DIMMs.

I'd like to see some compiled objective test stats over a broad range of brands and models, that support this conclusion.
post #6 of 8

I don't believe I need a disclaimer to discern what is an anecdotal observation (the 1425Mhz claim - seen from years of being here, this limit seems common regardless of voltage on generic spec kits) that at least helps give him an idea of how far he will go or why he does not go far IF he does not go far (and this is significant because he was planning as instructed to do a direct jump to 1600mhz without any in-between testing), taking into account a common sense observation (binning practices on all generic kits - esp. with 4GB DIMMs/higher density ICs).  Better AN idea than NO idea.

Quote:
Does that mean if i have oced cpu i must ram set to 667mhz because now i have oced amd x2 555 black edition to 4GHZ... Hope that somone can help me ..

If you have an overclocked bus clock (i.e. 240Mhz vs 200Mhz - it is common to be overclocking the bus clock if you do not have an unlocked processor) then setting the "1600Mhz" (it might be labelled that way, or the BIOS might've been smarter to label it as "x8" like 1333Mhz is "x6.66") might give you a higher speed than anticipated and unstable results.


Edited by xd_1771 - 6/29/12 at 1:34pm
post #7 of 8
^^^ You've made this claim several times about being able to tell how much 1333 MHz. and 1600 MHz. RAM will OC without actually testing it and I think your statement is meritless. If you actully have some objective database results on DDR3 RAM testing that supports your assertions, please post it. Otherwise I find your assertion baseless no matter what your personal anecdotal observations are on a very low volume of DDR3 RAM kits.

We often disagree on RAM issues and I find it absurd when you make some of these meritless posts. As an example I have three sets of DDR3 RAM sitting on my work bench and according to you, you can tell me how much these DIMM kits will OC without ever testing them, based only on the default RAM frequency rated by the mfg. I have $100 per set of DIMMs that says that you can NOT accurately state how high these DDR3 RAM kits will OC within +/- 10 MHz. on any of my PCs.

It's foolish to even suggest that you can predict the true max OC'ing frequency without actually testing it. You can speculate or take a wild arse guess, but that isn't exactly valuable information compared to proper testing.
Edited by AMD4ME - 6/29/12 at 6:42pm
post #8 of 8
Quote:
Originally Posted by AMD4ME View Post

^^^ You've made this claim several times about being able to tell how much 1333 MHz. and 1600 MHz. RAM will OC without actually testing it and I think your statement is meritless. If you actully have some objective database results on DDR3 RAM testing that supports your assertions, please post it. Otherwise I find your assertion baseless no matter what your personal anecdotal observations are on a very low volume of DDR3 RAM kits.

We often disagree on RAM issues and I find it absurd when you make some of these meritless posts. As an example I have three sets of DDR3 RAM sitting on my work bench and according to you, you can tell me how much these DIMM kits will OC without ever testing them, based only on the default RAM frequency rated by the mfg. I have $100 per set of DIMMs that says that you can NOT accurately state how high these DDR3 RAM kits will OC within +/- 10 MHz. on any of my PCs.

It's foolish to even suggest that you can predict the true max OC'ing frequency without actually testing it. You can speculate or take a wild arse guess, but that isn't exactly valuable information compared to proper testing.

AMD4ME, The King Of Knowing All Without Ever Benchmarking Or Testing Anything Has Spoken. teaching.gif

Xd1771 knows what he is talking about and has proven it over and over. You don't, and you have proven this over and over. Yelling and stomping your feet will not change this.
Edited by Jagged_Steel - 6/30/12 at 6:47am
    
CPUMotherboardGraphicsRAM
AMD FX-4170 @ 4.86 Ghz ASUS M5A97 EVO 2 x PowerColor AX6790 Crossfire 16GB (4 x 4GB) SAMSUNG MV-3V4G3D @1890 Mhz 8-9-9 
Hard DriveOptical DriveCoolingOS
2x Corsair Force 3 120 GB SSD External USB AMD stock cooler Win7 Ultimate 
MonitorKeyboardPowerCase
ASUS 23" DVI Fullsize, solid. OCZ ModXStream Pro 500W CM Praetorian 730 Black 
Mouse
Has red light on bottom 
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CPUMotherboardGraphicsRAM
AMD FX-4170 @ 4.86 Ghz ASUS M5A97 EVO 2 x PowerColor AX6790 Crossfire 16GB (4 x 4GB) SAMSUNG MV-3V4G3D @1890 Mhz 8-9-9 
Hard DriveOptical DriveCoolingOS
2x Corsair Force 3 120 GB SSD External USB AMD stock cooler Win7 Ultimate 
MonitorKeyboardPowerCase
ASUS 23" DVI Fullsize, solid. OCZ ModXStream Pro 500W CM Praetorian 730 Black 
Mouse
Has red light on bottom 
  hide details  
Reply
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