Overclock.net › Forums › AMD › AMD Motherboards › ROG Crosshair VI overclocking thread
New Posts  All Forums:Forum Nav:

ROG Crosshair VI overclocking thread - Page 793

post #7921 of 17579
Quote:
Originally Posted by awaybreaktoday View Post

What are your volts @3.8 and what are your temps?

1.45 but was still not stable. Temps 35 idle and 60c under load.
post #7922 of 17579
Quote:
Originally Posted by awaybreaktoday View Post

I have ProcODT @ 96 ohm.......

Is that safe? Any downsides for having it that high?
post #7923 of 17579
Quote:
Originally Posted by madweazl View Post

I've only observed this if the settings failed to train. If it boots properly (follow the LED cycles), the settings have remained.

I have cleared CMOS, rebooted, made one change to CSM, rebooted, and verified the Advanced settings get screwed up. I can reproduce it every time.
post #7924 of 17579
Quote:
Originally Posted by Kildar View Post

1.45 but was still not stable. Temps 35 idle and 60c under load.

Hmm, mine isnt the best clocker but doesnt need that much. What LLC are you running?
Inferior FTW!
(22 items)
 
FrankenRyzen
(13 items)
 
 
CPUMotherboardGraphicsRAM
i5 6600K 4.5@1.320v Gigabyte Z170X-Gaming 7 Founder's GTX 1070 200/800 Corsair Vengeance LED 3200@4000 
Hard DriveCoolingCoolingCooling
MyDigitalSSD BPX 120 (RAID 0) EK-FB GA Z170X Monoblock XSPC RX360 (White) XSPC RX240 (White) 
CoolingCoolingCoolingCooling
EK Vardar F2s (x5) EK-FC1070 GTX1070 (nickel/plexi)  EK GTX1070 FE backplate EK Double Bay PWM D5 MX 
CoolingCoolingOSMonitor
Bitspower 250 Z-Multi Res EK HDC fittings (12mm) Windows 10 Samsung C32F391 
KeyboardPowerCaseMouse
Razer Blackwidow Chroma EVGA Supernova G1 1000w Phanteks Enthoo Primo Razer Naga Epic 
Mouse PadAudio
Razer Vespula Sennheiser HD598 
CPUMotherboardGraphicsRAM
Ryzen R7 1700 @3.9 Asus Crosshair VI Hero Radeon HD 6950 G.skill RGB 3200 @3500 C16 
Hard DriveCoolingOSMonitor
Samsung 960 Evo CM 212 Evo (push/pull) Windows 10 Pro 46" Sharp Aquos 
KeyboardPowerCaseMouse
Razer Anansi 750w Keian CM ATCS 840 Logitech G300 
Mouse Pad
My desk... 
  hide details  
Reply
Inferior FTW!
(22 items)
 
FrankenRyzen
(13 items)
 
 
CPUMotherboardGraphicsRAM
i5 6600K 4.5@1.320v Gigabyte Z170X-Gaming 7 Founder's GTX 1070 200/800 Corsair Vengeance LED 3200@4000 
Hard DriveCoolingCoolingCooling
MyDigitalSSD BPX 120 (RAID 0) EK-FB GA Z170X Monoblock XSPC RX360 (White) XSPC RX240 (White) 
CoolingCoolingCoolingCooling
EK Vardar F2s (x5) EK-FC1070 GTX1070 (nickel/plexi)  EK GTX1070 FE backplate EK Double Bay PWM D5 MX 
CoolingCoolingOSMonitor
Bitspower 250 Z-Multi Res EK HDC fittings (12mm) Windows 10 Samsung C32F391 
KeyboardPowerCaseMouse
Razer Blackwidow Chroma EVGA Supernova G1 1000w Phanteks Enthoo Primo Razer Naga Epic 
Mouse PadAudio
Razer Vespula Sennheiser HD598 
CPUMotherboardGraphicsRAM
Ryzen R7 1700 @3.9 Asus Crosshair VI Hero Radeon HD 6950 G.skill RGB 3200 @3500 C16 
Hard DriveCoolingOSMonitor
Samsung 960 Evo CM 212 Evo (push/pull) Windows 10 Pro 46" Sharp Aquos 
KeyboardPowerCaseMouse
Razer Anansi 750w Keian CM ATCS 840 Logitech G300 
Mouse Pad
My desk... 
  hide details  
Reply
post #7925 of 17579
Quote:
Originally Posted by fanboynz View Post

Is that safe? Any downsides for having it that high?

https://www.bit-tech.net/hardware/memory/2008/02/08/the_secrets_of_pc_memory_part_3/8

DDR2 On-Die Termination (ODT) improves signal integrity by building dynamic resistive technology within the memory chip itself. This reduces the material and testing cost for motherboard manufacturers on top of other benefits. Unintended signals can bounce off from either active or passive components, but only active components like DRAMs are adversely affected. ODT negates the negative effects of signal echoes along the bus during read-write operations at the chip level.

Ironically, if the termination is too effective, it is possible the data signal can be absorbed when the memory timing is inaccurate – overclocking can sometimes result in this data truncation memory error.

The BIOS in some motherboards allows the user to manually adjust the resistive nature of ODT between 50, 75, 150 ohms. According to JEDEC specification, 50 ohms is a mandated for DDR2-667 and beyond on some platforms.
post #7926 of 17579
Is it strange I can game on the 2933 multipler @ 3600mhz but I cant even get my pc to boot @ 3200mhz mulitplier? This is with all new bioses.
post #7927 of 17579
Quote:
For Hero VI are new AGESA BIOSes 82 & 83 at 2T:

Posted by @elmor

There are two new settings under AMD CBS\UMC Common Options\DDR4 Common Options\ you might want to take a look at, Fail_CNT and ProcODT.

Fail_CNT decides how many times to retry when DRAM training fails (F9 -> 0d), default is now 1.

ProcODT can help improve your DRAM overclocking, 0079 relies on whatever Auto value AMD deems is best, 0081 has default value as 53.3 Ohm. There's a setting available also on previous BIOSes under AMD CBS\UMC Common Options\DRAM Memory Mapping named BankGroupSwap.
If you have 2x Single-Rank modules you can try setting this to Disabled and you might see some performance boost in certain applications.
(For my RAM better is to leave at Auto)

Posted by pantsoftime

For anyone unfamiliar with ODT, it's a termination setting for signal integrity purposes. It's not going to affect performance (directly) or degrade your chip but it will affect your ability to run at higher clock speeds.
Both DRAM and DRAM controllers (IMCs) have ODT (on-die termination) resistors that are configurable to a few different settings.
Nominal ODT values are often set based on trace impedances, but other factors often come into play. I can imagine things like: number of DIMMs installed, DIMM PCB design, VDIMM and VTT voltages, etc all having an effect on which ODT setting works best.
I would shy away from very high settings because the signal will overshoot/ring a lot and potentially cause problems.

My experience:
Best for me is to leave now 2800MHz at CL14 and 1T with BIOS nb.82
2800MHz CL14-14-14-14-30 1T at 60ohm's
With BIOS 83 i can go up to 3100 CL16 2T -> it gets a little better Bandwith (+1.5GB to 2GB/s) but Latency is Higher (~ -3 to -6ns) (i like Latency more)
Generally best is to have RAMs produced ~2015 and The Best ones are from 2016 + at low CL (e.g. 3000 CL14, 3200CL14, 3600 CL16/15 etc.)

Edited by awaybreaktoday - 4/8/17 at 6:47pm
post #7928 of 17579
Quote:
Originally Posted by Atingleee View Post

Just updated from 1001 to 0083. Great results so far!

Able to use the 2933 DOCP profile on my 3200 cl16 trident z ram. Previously could not boot on anything above 2400 biggrin.gif 3200 profile still doesn't work but I'm sure someone can hit those speed with a bclk boost. I personally use pstates so not going to try.

Anybody with non samsung b die ram try out the DOCP profiles!

Using F4-3200C16D-16GVGB (hynix) got to 2933 on the 0083 bios, couldn't get above 2666 on the others.
Going to try changing the ProcODT later when my stability test run finishes.
post #7929 of 17579
Anyone having issues saving any changes for P-States on 0083?

For the life of me, bios doesnt seem to be tracking the changes.... Even straight P-State, no BCLK
post #7930 of 17579
Quote:
Originally Posted by mattlef View Post

Anyone having issues saving any changes for P-States on 0083?

For the life of me, bios doesnt seem to be tracking the changes.... Even straight P-State, no BCLK

If you fail an OC, P-states go back to default. this includes the global c state option.

simply going back into bios makes them look like they didnt save if you go look at Pstate settings, but as long as you see desired increased cpu frequency on the right side of screen, its working. just exit without saving in that case.

i've noticed that with 0079, 0082 and 0083
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD Motherboards
Overclock.net › Forums › AMD › AMD Motherboards › ROG Crosshair VI overclocking thread