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Old January 28, 2011, 02:44 AM
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Posts: 6
Default Need Help Overclocking UD9 / 980x to 4.2Ghz on Air.

Hello,I have built this system to be my video editing rig, and I need help pushing my PC further to 4.2 GHZ and running stable. Currently I am at the specs below with my PC, however I run prime95 which crashes and at one point a core dropped down to 50% load and failed.

So please look at my specs below and suggest what I need to do further to stabilize a 4.2GHz Overclock on the 980x

Thank you.
---------------------------------------------------

Goals:
Achieving stable 12GB ram at 1800 MHZ low latencies, CPU to 4.2 GHZ on air.

CMOS:

CPU =
Intel i7 980X 32nm
CPUID =
000206C2
Motherboard =
Gigabyte X58 UD9 , Revision 1.0
BIOS Version =
F5h
CPU Frequency =
4161.13 MHZ
Memory Frequency =
1600.41 MHZ
Total Memory Size =
12288 MB
System Temp =
41C
MCH Temp =
48C
CPU Temp =
39C
Vcore =
1.300V
DRAM Voltage =
1.660V
Ram =
12GB G.Skill Ripjaws 2 Sets of 6 GB (3 x 2 gb)
Ram Info =
Newegg.com - G.SKILL Ripjaws Series 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 2000 (PC3 16000) Desktop Memory Model F3-16000CL9T-6GBRH

M.I.T Status:

Turbo Ratio:
24 All Cores
Non-Turbo Ratio:
24 All Cores
CPUID:
000206C2
BCLK:
160 MHZ(160x25)

Power Management Settings:

ACPI.................................
.53 (STR)
Soft Off by PWR Button.......
4 Sec. Delay
Power on ring....................
On
HPET Support.....................
Enabled
HPET Mode........................
.64-Bit Mode
AC Back Function................
Soft Off
ErP Support.......................
.Disabled

Code:


Advanced CPU Features:

CPU Clock Ratio ................................
[25X]
Intel(R) Turbo Boost Tech ..................
[Enabled]
CPU Cores Enabled ............................
[All]
CPU Multi Threading ..........................
[Enabled]
CPU Enhanced Halt (C1E) ...................
[Disabled]
C3/C6/C7 State Support ....................
[Disabled]
CPU Thermal Monitor .........................
[Disabled]
CPU EIST Function ............................
[Disabled]
Virtualization Technology ...................
[Enabled]
Bi-Directional PROCHOT .....................
[Enabled]

Uncore & QPI Features:

QPI Link Speed ..............................
x48 at 7681.87mhz
Uncore Frequency ..........................
x20 at 3200mhz
Isonchronous Frequency Support..................
[Enabled]

Standard Clock Control:

Base Clock (BCLK) Control ................
[Enabled]
BCLK Frequency (MHz) .....................
[160]
PCI Express Frequency (MHz) ...........
Auto

Advanced Clock Control:

CPU Clock Drive ..............................
[800mV]
PCI Express Clock Drive ...................
[900mV]
CPU Clock Skew .............................
[0ps]
IOH Clock Skew .............................
[0ps]

Profile:

Profile DDR Voltage..............
.1.6V
Profile QPI Voltage.................
1.2V
Channel Interleaving..............
.6 [AUTO]
Rank Interleaving...................
4 [AUTO]

Advanced DRAM Features:

Performance Enhance ......................
[Turbo]
Extreme Memory Profile (X.M.P) .........
[Enabled - Profile 1]
System Memory Multiplier (SPD) ........
[10]
DRAM Timing Selectable (SPD) ..........
[Quick]

Channel A + B + C

Channel A Timing Settings:

##Channel A Standard Timing Control##

CAS Latency Time ......................
8
tRCD .......................................
8
tRP .........................................
8
tRAS .......................................
24

##Channel A Advanced Timing Control##

tRC ........................................
47
tRRD .......................................
6
tWTR ......................................
6
tWR ........................................
10
tWTP .......................................
22
tWL ........................................
8
tRFC .......................................
88
tRTP .......................................
6
tFAW ......................................
30
Command Rate (CMD) ................
3

##Channel A Misc Timing Control##

Round Trip Latency ...................
58 (On channel C it is at 59)

B2B CAS Delay ..........................
Auto

Channel A Turn Around Settings:

Reads:
Dimms-6 Ranks-5 On the Same Rank - 1
Writes:
Dimms-6 Ranks-66 On the Same Rank - 1

Advanced Voltage Control:


CPU:
Load Line Calibration ................
.[Standard]
CPU Vcore ...............................
Current: 1.3000V
QPI/VTT Voltage.......................
1.580V
CPU PLL...................................
AUTO

MCH/ICH:

PCIE......................................
1.500V
QPI PLL...................................
1.100V
IOH Core..................................
1.100V
ICH I/O...................................
1.500V
ICH Core.................................
1.100V

DRAM

DRAM Voltage......................
1.660V
DRAM Termination...............
.0.750V
Ch-A Data VRef. 0.750v
[AUTO]
Ch-B Data VRef. 0.750v
[AUTO]
Ch-C Data VRef. 0.750v
[AUTO]
Ch-A Address VRef. 0.750v
[AUTO]
Ch-B Address VRef. 0.750v
[AUTO]
Ch-C Address VRef. 0.750v
[AUTO] ----------------------------------------------------
Case: LIAN LI PC-P80 Mobo: GIGABYTE GA-X58A-UD9 CPU: Intel Core i7-980X 4.00GHz
Heatsink: Lapped Noctua NH-D14 120mm/140mm/120mm - Three fans! Thermal Pad: Indigo Extreme RAM: 12GB of G.SKILL Ripjaws Series 6GB (3 x 2GB) 1600mhz
GPU: EVGA GeForce GTX 480 PSU: SILVERSTONE ST1500 1500W SSD OS/APPS: Crucial RealSSD C300 HDD / GAMES: 600 GB Velociraptor 6 GB/s
HDD: 5 HDD's in Raid 5 for Scratch Disk: 1TB Samsung Spinpoint F3 Blu-ray:Pioneer Black Blu-ray DVD Lightscribe: PLEXTOR 24X DVD/CD
OS: MicrosoftWindows 7 Ultimate 64-bit Fan Controller: Sunbeam Rheobus Extreme
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Old January 28, 2011, 03:56 AM
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You do know you need to increase Vcore as you increase the blk amongst other things.
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Old January 28, 2011, 04:46 AM
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What should the increase go to?
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Old January 28, 2011, 05:30 AM
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Its really all proportional. You should look up some of the guides or methods people have posted on the forums about overclocking i7 920s and essentially apply the same method changing a few things. Its all about trial and error and not exceeding recommended max voltages such as not going over vcore 1.4.
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Old January 28, 2011, 07:00 AM
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Is it possible to damage your cpu if you go to like 1.5 or 1.6 vcore?

Because after I accidently went to high, my CPU has been sluggish ever since. God darnit...
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Old January 28, 2011, 07:58 AM
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You can cause damage to your CPU by going too high in the voltages, but it's rarely an instant thing, usually it will get damaged over months or years unless you do stupidly high voltages. The gigabyte BIOS notifies you what are sort of 'standard' levels of voltages. Any time you are selecting voltages, when it turns pink you know that that is getting into the trouble area. If you are staying below the pink, the voltages *should* be fine for ~3 years or a bit longer if you're lucky. Red is definitely only for experts who just want to benchmark.


Memory frequency: 1600 Mhz
Uncore frequency: (x20) 3200 Mhz <----- You will find that 2x+1 is probably more stable. Run your uncore so that it = memory frequency x 2 + blck (so for 160 Mhz, mem freq = 160x10 = 1600 Mhz, uncore = 2x(160x10) + 160 = 160x21 = 3360

Load Line Calibration .................[Standard]
CPU Vcore ...............................Current: 1.3000V - can go higher if you need to.
QPI/VTT Voltage.......................1.580V - getting really really high! You need more for 12GB vs 6GB, but I wouldn't suggest over 1.45v for anything long term
CPU PLL...................................AUTO - Some people have success with lowering this to 1.6 or 1.65v

MCH/ICH:

PCIE......................................1.500V
QPI PLL...................................1.100V - may or may not need a slight bump.
IOH Core..................................1.100V - If you have more than 1 GPU, you will have to bump this up
ICH I/O...................................1.500V
ICH Core.................................1.100V

Try using a higher bclk and a lower multiplier as this will often reduce your VTT voltage. I don't see why you're trying to kill yourself with a high overclock on your RAM. 1600Mhz at CAS-9 is extremely fast and only benchmark tools benefit from faster than that. Installing 12GB of ram takes a lot more voltage than 6GB, so I really suggest you don't go past 1600 Mhz CAS-9 as you're just making it that much harder for almost no performance gain. For IOH core, try adding .2v for each GPU after your first.
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Old January 28, 2011, 12:31 PM
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Pretty worried still about possibly shorting something out, is it only damage over time to the CPU? Or is it possible that there is unseen damage down now to my CPU that I have abused it with voltage. My worst settings I put in was a stupid clock with like the Vcore as 1.58 and the QPI/VTT 1.6 for 4.6Ghz I was going for.
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Old January 28, 2011, 12:52 PM
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I'd be worried if I had Vcore @ 1.6V even for a little while. The Intel spec sheet says that anything over 1.4V will cause damage, so, assuming they know what they're talking about, I think that voltage might have caused some damage. Also, isn't QPI voltage supposed to be less than Vcore, or is it just supposed to be +/- a certain range?

is 39C your idle temps? What really matters are your load temps. Do you have those numbers available? I have my CPU running at 4.2 (168x25) @ 1.35V but my memory is at 1333MHz.

Edit: I don't know about the RAM you have, but my ram rated at 1600MHz wouldn't run at that speed after I OC'd my CPU. I guess I could bring it back to those speeds with more voltage, but I prefer to be conservative with my voltage and I find RAM frequencies have no noticeable impact on performance (like 1333MHz seems fine for me).
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Old January 28, 2011, 02:31 PM
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Load Temp is 61C for 4.0GHZ overclock
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Old February 1, 2011, 01:56 PM
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I highly doubt you damaged your CPU with a short burst of 1.6v.......no way!!!
FYI
For me to run my 980X stable at 4.33 Ghz I need high vCore, as in 1.43v....I have run it at this for a few months with no ill effects.....hav bumped vCore to 1.55v for a few Bench runs @ 4.6 Ghz...again, no ill effects.
As was mentioned, try to keep both your vCore and vTT at or below Intel Recommended Max of 1.4v.
All chips are different....some require less and some require more.....my 980X requires 1.38125v vCore and 1.325v vTT for stable 4.13 with 12GB Doms @ Cas8.
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