OC Formula: Standard board, conformal coating, 4-way support
OC Formula A: Same as OC Formula with 802.11AC card
OC Formula M: Mini board, OC's the same minus 4-way support, no OLED disp (Best deal if going 2d and single card only)z87 OCF Bios List151Bz87 OCFA Bios List151Bz87 OCF-M Bios List141AASRock OC Tools0709
Newegg LinksASRock OCFASRock M OCF
-Air cooling 32m overclocking profile is niiiice.
-Mem profiles are made with normal purchased memory kits not golden samples.
-Conformal on the big board imo is best to be used as a second defense. Eraser is the insulation of choice on that one.
-When overclocking memory if you hang on 00 or if the last code you see is 03, something is set too tight for the frequency you are using.
-Tighter timings are not always faster, play with them one at a time. I could tell you which ones matter but thats half the fun!
-Boot bclk and eventual bclk can take some ease off of training at high speed. This can also allow your RTL and I0-L to sometimes be pulled in tighter when set on auto.
-The same with hynix and BBSE, some kits dont like to train with high volts. If you are max mhz'ing hynix you can use 2.0vdimm boot and 2.3vdimm eventual etc.
-The 3000mhz memory divider at 100bclk is not useable, so use 2933 and bclk or 125 strap.
-When using 125 bclk strap, around 145 bclk you will loose stability and its advisable to switch to 167 strap at that point.
Originally Posted by nickshih;5194408
some tips here for the memory overclocking
1. Dram boot voltage & Dram eventual voltage:
Some module doesn't like too higher voltage during code training . For example : Hynix 1.74volt passed , 1.78volt failed
But u need 1.78 volt to enter os at certain frequency . Then u can set dram boot voltage = 1.74 , dram eventual voltage = 1.78.
It will help you to pass the training and also go into os without any problem.
2. Boot bclk & Eventual Bclk : it is working same as dram boot & eventual . especially great helpful of maximum memory clocking
3. Trdrd is the key of memory performance . Try to keep this one as 4 , even u have to loose others . U will gain more than what u lose .
4. Memory training threshold : This is the special option by Asrock Z87(M) OCF only .
The value of clock is reference by the memory clock which u are aiming . you can keep auto from 1333 ~3400 Mhz .
But if you try to max out the memory mhz >3400~4400 , u can try to put it from 14~16 . It might do a little bit help .
5. System agent & IO digital & IO analog : each of them has auto rule already.
If u want to put it by urself . System agent maximum value < +0.5 , IO digital <= +0.3 , IO analog <= +0.25
IO digital & IO analog helps maximum memory clock .
So .. boot is for code training , eventual is for booting into os .
Simple and easy .. enjoy it !!
Possible memory stability gain lowering Vttddr voltage from x .5 vdimm (standard intel rules) to x .490 -.495 vdimm