I had same problem on 3 boards It's a BIOS problem with the 980X they need to fix... i spoke with them on the phone last week and the guy said they are aware of the problem... waiting.
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No, I only raise 3 voltages - CPU, QPI and Ram.
I tried raising other ones in the past, and they didnt seem to help at all.
Its right at the edge of acceptable temperatures with 100% load at 4.2 Ghz anyway, usually around 85 for one core and 82 for the others (I believe that <85 degrees with 100% load is fine as nothing else will stress it that much anyway). I just thought that I might be able to squeeze it up to 4250 Mhz. It was vantage stable, but not Prime or video game stable.
Also my graphics cards were Vantage stable with a whopping extra 4 Mhz on this board over my previous 1066 Mhz :p:. 1075 Mhz fails. 1050 Mhz is doable for 24/7 use, but too noisy.
So 24/7 clocks are 4.2 Ghz CPU, 1600 Mhz Cas 7 ram, 1000 / 1445 on the graphics cards. I were expecting my graphics card's ram to fry at maximum speed, but its fully stable and the heatsinks on top of the chips only get moderately warm. I wish I had a way to OC the GFZ ram up to 1500 Mhz, it hasnt even reached its limit at 1445 Mhz, and FPS improves all the way up to that speed so error checking isnt kicking in either.
Improvements over my UD5 - Much lower voltages required, and cooler slot 1 gaphics card from the spacing. Before my top card was running up to 10-15 degrees hotter than the second, now the difference is just 2-3 degrees, which is what I wanted. So I'm happy, it just needed the 0602 bios to get working properly :).
Oh, I'll try that suggestion for 6-8-6. I tried 7-6-6 at higher volts but that wouldnt boot up.
Do IOH and PCI-E voltage help? I dont know if they do anything really, and I have 200 BCLK with them at default.
Sweet, how did you know that?
http://img532.imageshack.us/img532/4738/ramc.png
This ram was £72 per pair for OEM sticks, awesome stuff, glad I bought 3 of them :D.
I'll stress it while reducing voltages every 5 mins until it freezes up to find the lowest volts it will work at.
I tried 1.25, 1.3 and 1.35v on the QPI, they dont do much to improve stability over 200 BCLK.
However, I never touched the IOH voltage, I would assume that might help.
When I tried 2000 Mhz on the ram, I had the QPI set to 1.4v+, and the ram at 1.65v, going by the XMP profile, and 10-10-10-30 timings with T3. It couldnt even boot into windows.
I dont know if anyone has gotten 12 gigs stable on any board at 2000 Mhz or more, 12 Gb seems to be limited to around 1800 Mhz, regardless of how good the ram is.
Dudes what's the typical CL6 timings/volts for this ram - cmg6gx3m3a2000c8 ???
I just cant be bothered doing that, trying with 6 Gb at a time.
Its also 3x4 Gb kits :p.
I dont mind with 1600 Mhz Cas 6 anyway.
Seems if you slow down the QPI, QPIv drops quite a bit, at least more than I thought would be the case... (initially I was running 1.39v then with this run to 1.32v)
I am not a big Asus fan at all, but this seems to be a good board. I just ordered one, hope to have it and join you guys by the end of the week.
Ok, so I am on a 980x and so far I can not get 4.2Ghz stable (133 x 31):
Target CPU Frequency 4200MHz
Target DRAM Frequency 1600MHz
LN2 Mode [N/A]***
QPI Loadline Calibration [auto]***
Sync Mode []
AI Overclock Tuner []
OC From CPU level Up []
CPU Ratio Setting []
CPU Turbo Power Limit []
>CPU Configuration----------------------------
CPU Ratio Setting [31]
C1E Support [Disabled]
Hardware Prefetcher [Disabled]
Adjacent Cache Line Prefetcher [Disabled]
Intel(R) Virtualiyation Tech [Disabled]
CPU TM Function [Enabled]
Execute Disable Bit [Disabled]
Intel(R) HT Technology [Enabled]
Active Processor Cores [6]
A20M [Disabled]
Intel(R) SpeedStep(TM) Tech [Disabled]
Intel(R) C-STATE Tech [Disabled]
C State package limit setting [Disabled]
----------------------------------------------
BCLK Frequency [133]
PCIE Frequency [Auto]
DRAM Frequency [1600]
UCLK Frequency [3200]
QPI Link Data Rate [4800]
Memory Configuration Protect []
>DRAM Timing Control--------------------------
CAS# Latency [6]
RAS# to CAS# Delay [6]
RAS# PRE Time [6]
RAS# ACT Time [16]
RAS# to RAS# Delay [auto]
REF Cycle Time [auto]
WRITE Recovery Time [auto]
READ to PRE Time [auto]
FOUR ACT WIN Time [auto]
Back-To-BackCAS# Delay [auto]
Timing Mode [1N]
Round Trip Latency on CHA [auto]
Round Trip Latency on CHB [auto]
Round Trip Latency on CHC [auto]
WRITE To READ Delay(DD) [auto]
WRITE To READ Delay(DR) [auto]
WRITE To READ Delay(SR) [auto]
READ To WRITE Delay(DD) [auto]
READ To WRITE Delay(DR) [auto]
READ To WRITE Delay(SR) [auto]
READ To READ Delay(DD) [auto]
READ To READ Delay(DR) [auto]
READ To READ Delay(SR) [auto]
WRITE To WRITE Delay(DD) [auto]
WRITE To WRITE Delay(DR) [auto]
WRITE To WRITE Delay(SR) [auto]
----------------------------------------------
CPU Differential Amplitude [auto]
CPU Clock Skew [auto]
IOH Clock Skew [auto]
------------ Extreme Engine Digi+ ------------
Digi+ PWR Mode [X Balance]
PWR Volt. Control [auto]
Load-Line Calibration [100%]
CPU Voltege OCP [Disabled]
CPU PWM Frequency [auto]
Extreme OV [Disabled]
Extreme OC [Diasabled]
CPU Voltage [1.26]
CPU PLL Voltage [auto]
QPI/DRAM Core Voltage [1.35]
DRAM Bus Voltage [1.55]
>DRAM REF Voltages----------------------------
DRAM DATA REF Voltage on CHA [auto]
DRAM CTRL REF Voltage on CHA [auto]
DRAM DATA REF Voltage on CHB [auto]
DRAM CTRL REF Voltage on CHB [auto]
DRAM DATA REF Voltage on CHC [auto]
DRAM CTRL REF Voltage on CHC [auto]
----------------------------------------------
IOH Voltage [1.35]
IOH PCIE Voltage [auto]
ICH Voltage [auto]
ICH PCIE Voltage [auto]
---------- Spread Spectrum Control -----------
CPU Spread Spectrum [auto]
DRAM Spread Spectrum [auto]
So I guess my question is:
1 - Any suggestions?
and
2 - What would be the safe max under water for the 980x vcore? I know you are not supposed to go above 1.4v on QPI, but what are the other limits that I should be keeping too?
Bios is 704.
utnoris
DRAM Frequency [1600]
UCLK Frequency [3200] x1.5 not x2 so 2400-2600
4.2 you gonna need around 1.3-1.33 max is 1.4-1.5
you dont need qpi volts that high for 1600mhz n gou 1.6v-1.65 on ram
IOH Voltage [1.35] 1.2 v
IOH PCIE Voltage [auto] 1.55v
bump em up if needed for xfire or powerhungry cards
dont forget the 4 pin for v-cards
Ive found with many i7 980x retails on R3E im getting no CBB or CB tested 2 retails diff batch 3003B242 3003B396 but on UD 7 CB -145 CBB -120.... ive found its all in your bios settings on R3E to eliminate CB on retails. Ill post up bios settings sometime when im home.
no issues, no need to change :)
Thanks guys, will try later today.
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