I am having to use OCCT to test stability. And I am having problems with CPU test 2 in Vantage The hang has been cured with the new version but not the very low scores.

iride4u

I am having to use OCCT to test stability. And I am having problems with CPU test 2 in Vantage The hang has been cured with the new version but not the very low scores.

I have not tried OCCT yet. How are you setting it up for testing? Did your 975 score more with CPU test 2? I checked and scored 222.82 but have know idea if thats good or bad. 

 I just read a few places that running small ftt's draws more power from the wall and creates more heat than LinX (opposite of the 920's). I just tried OCCTPT3.1.0 on a stock 980X and still LinX 8 threads creates more heat. I never really tried OCCT so I might not have the right setting. It seems LinPack might be the problem, IBT gives the same results as LinX .

 Tonight, I going to put A batch back in ( I know that chip a little better) and use the cheezy Kill-A-Watt and see what happens.

CKy2k,
 
you seeing any improvement over the A0 stepping from you perpective?

emmett

Ok expedision.


I lowered Vtt to +0 and timings to 6-6-6-19 1.55 vdimm

Small fft's prime 95 and my temps were up 6c across the board. and failed after about 45 mins.

emmett.

gonna restest at original vtt and vdimm...

Any luck yet and did you have to raise Vcore?

Before I even think of buying a Gulftown, I have a question. Does it run cooler or hotter at similar overclocks has a 45nm i7?

good thread, very helpful

iride4u

I am running at 4.5 in OCCT and seeing temps in the high 40s on water with the 975 it would have been in the high70s

Do you think that the 980x just run that much cooler. If they do, this cpu is worth every penny.

Reinstalling the OS has solved the PhysX problems in Vatage

I'm at 5ghz on the same temp I use to be at 4ghz with my 965 XE

firerx

I'm at 5ghz on the same temp I use to be at 4ghz with my 965 XE

Are you running that 5.1GHz 24/7 bro?

emmett

I only had time to do a 30 minute test this morning, and yes I had to raise vcore a little.

I set it at 1.418 in bios, and it shows 1.435 under load. temps up 5-6c from linx.

Thanks for proving my point! Linx does not stress the 980x like it should. Prime small FFT's Test should be used for stabity testing until Linx is fixed.

I think this will be beneficial both to those who already have this processor, and those who will shortly be purchasing it.
As usual, overclock at your own risk.
Thanks all!


Mother Board (EVGA X58 Classified 759)                                                       
Drivers (9.1.1.1025)
Bios (S649)                                                                                                     
 CPU (Intel i7-980X  Water)                   
CPU Cooler (Heatkiller 3.0)
Memory (6GB Corsair 8-8-8-24 DDR3 2000)
PSU (Coolermaster 1250+PC P&C710)
GPU (ATI Sapphire 5970)
Drivers (10.3)                                                                                                  
Operating System (Windows 7 64-bit Professional)


Frequency Control
CPU Clock Ratio (35x)                                                                                         
CPU Host Frequency (Mhz) (135)                                                                      
MCH Strap (auto)
CPU Uncore Frequency (Mhz) (Auto)                                                
CPU Clock Skew (disabled)
Spread Spectrum (disabled)
PCIE Frequency (Mhz) (100) If using SSDs, Check with your SSD manufacturer before raising above 100.  

Memory Feature        
Memory Speed (Standard)
Memory Control Setting (Enabled)
Memory Frequency (1346MHz/2:10)
Channel Interleave Setting (6 way)
Rank Interleave Setting (4 way)
Memory Low Gap (3G)
tCL Setting (6)
tRCD Setting (7)
tRP Setting (6)
tRAS Setting (19)
tRFC Setting (59)
Command Rate (1T)


Voltage Control
EVGA VDroop Control (Without Vdroop)
CPU VCore (1.45)                                                                                                
CPU VTT Voltage (+100)
CPU PLL VCore (Auto 1.80)
**IOH PLL VCore (Auto 1.80) 
DIMM Voltage (1.66)
DIMM DQ Vref (+0mV)
QPI PLL VCore (1.200)
IOH VCore (1.200)
IOH/ICH I/O Voltage (auto)
**BR04 ( NF200) Voltage ( ) (only on E-759)
**VTT PWM Frequency (370 KHz)
**CPU PWM Frequency (940 KHz)
**CPU Impedance (auto)
**QPI Signal Compensation (auto)
ICH VCore (1.200)
*PWM Frequency ( )


CPU Feature
Intel SpeedStep (Enabled)
Turbo Mode Function (Enabled)
CxE Function (C1E)
Execute Disable Bit (Enabled)
Virtualization Technology (Disabled)
Intel HT Technology (Enabled)
Active Processor Cores (All )
QPI Control Settings (Enabled)
QPI Link Fast Mode (Enabled)
QPI Frequency Selection (Auto)
OC Recovery (Disabled)
Turbo Performance (Disabled) 

PnP/PCI     PCI Express
Maximum Payload Size (4096)
 
Power Management Setup
ACPI Suspend Type (S1)   
HPET Support (Enabled)     
HPET Mode (32-bit) 

Got my unit today after alot of struggle, ended up with a Costa Rica 3003B331 batch--done a few hours of testing and tweeting upward to get used to the 980x.  Currantly at 35x 135 for 4713.5mhz  temps under load are running in the 50s or just touching 60 which is down considerably from what I was seeing with a my third and best 920 at around 4300mhz.  The temps on these 980x are unbelievebly low, they are so low that I'm a little afraid to push the volts higher yet though the temps indicate that I could go quite a bit further.  They seem to be voltage centric always generating a BS 101 or 'clock interval' as an error and with more volts up they go.  Don't seem to like alot of VTT although I only did a little experimenting with higher BCLK to achieve 4mhz+ results.  Going to some work for about 24 hours and then push it along some more.  Good Luck to all 

The idea of small FFTs is to fit neatly into the cache registers L2/L3 and would be more stressful for the cpu with load of heat being generated. Always good to run "Blend" for an extended period,  at least a complete cycle or up to 12 hrs as I do to stress the IMC on the cpu. I've been using Prime 95 for years and it is the best overall stress test IMHO. Couple of notes:

FYI,

"You can control which FFT sizes are tested by the torture test.  In prime.txt
you can set:
    MinTortureFFT=n
    MaxTortureFFT=m
Where n and m are in "K".  The default for n and m is 8 and 1024 which will
run tests on FFT sizes rom 8K to 1024K.  Set n to 8 and m to 16 and you will
run only small FFT sizes.  These FFTs will fit in the L2 cache and may be
more stressful to the CPU."

You can control how many minutes each FFT size is tested by the torture test.
In prime.txt set:
    TortureTime=n
The default value is 15 minutes.

"you can override the info in local.txt:
    NumCPUs=n
    CpuNumHyperthreads=1 or 2
    CpuSpeed=s
Where n is the number of physical CPUs or cores, not logical CPUs created by
hyperthreading. Choose 1 for non-hyperthreaded and 2 for hyperthreaded. Finally,
s is the speed in MHz."

Finally, from the WiKi below, some good info on FFTs for your viewing pleasure (boy how I recall this from my collegiate days ):

http://en.wikipedia.org/w.i/Fast_Fourier_transform

Mersenne Prime WiKi & forum links:

http://mersennewiki.org/index.php/Main_Page

http://mersenneforum.org/

Here is my 24/7.Ran linpack 10 passes on high good enough for me.Will give my max overlock in a couple days.
 
Mother Board ( EVGA X58 Classified E-759 )                                                       
Drivers ( 197.13 )
Bios ( 49 )                                                                                                     
CPU ( 980x )    batch 3003b331                
CPU Cooler ( koolance cpu 360 )
Memory (6 gig tripple channel gskill perfect storm )
PSU ( ultra 1600w )
GPU ( GTX295+ X 2 )
Drivers ( 197.13 )                                                                                                  
Operating System ( Windows 7 64 Ultimate )
 
Frequency Control
CPU Clock Ratio ( 32X )                                                                                         
CPU Host Frequency (Mhz) ( 143 )                                                                      
MCH Strap ( Auto )
CPU Uncore Frequency (Mhz) ( auto )                                                
CPU Clock Skew ( 0 ps )
Spread Spectrum ( Disabled )
PCIE Frequency (Mhz) ( 100 ) If using SSDs, Check with your SSD manufacturer before raising above 100.  
 
Memory Feature        
Memory Speed ( Standard )
Memory Control Setting ( Enabled )
Memory Frequency ( 1866Mhz / 2:14 )                                                                
Channel Interleave Setting ( 6 Way )
Rank Interleave Setting ( 4 Way )
Memory Low Gap ( auto )
tCL Setting ( 7 )
tRCD Setting ( 8 )
tRP Setting ( 7 )
tRAS Setting ( 20 )
tRFC Setting ( 88 )
Command Rate ( 1t )
 
Voltage Control
EVGA VDroop Control ( With VDroop )
CPU VCore ( 1.39 )                                                                                                
CPU VTT Voltage ( 1.44v )
CPU PLL VCore ( auto )
**IOH PLL VCore ( auto ) 
DIMM Voltage ( 1.66 )
DIMM DQ Vref ( +0mV )
QPI PLL VCore ( auto )
IOH VCore ( Auto )
IOH/ICH I/O Voltage ( Auto )
**BR04 ( NF200) Voltage ( auto ) (only on E-759)
**VTT PWM Frequency ( auto )
**CPU PWM Frequency ( auto )
**CPU Impedance ( auto )
**QPI Signal Compensation ( auto )
ICH VCore ( Auto )
*PWM Frequency ( Not Used on Classified )
 
CPU Feature
Intel SpeedStep ( Disabled )
Turbo Mode Function ( disabled )
CxE Function ( Disabled )
Execute Disable Bit ( Disabled )
Virtualization Technology ( Disabled )
Intel HT Technology ( Enabled )
Active Processor Cores ( All )
QPI Control Settings ( Enabled )
QPI Link Fast Mode ( Enabled )
QPI Frequency Selection ( 6.400 GT/s )
OC Recovery ( Disabled )
Turbo Performance ( Disabled ) 
PnP/PCI     PCI Express
Maximum Payload Size ( 4096 )
 
Power Management Setup
ACPI Suspend Type ( S3 )   
HPET Support ( Enabled )     
HPET Mode ( 64-bit )