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i7 & GA-X58-UD3R Rev.2 Overclock Settings

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damndoe said:
1. Will that 2000 memory run the same CL? Did your overclock run on the same CL?

2. How do you know what geekbench tests, latency or thoughtput (think in terms of ping or bandwidth for the internet, its equal). If it tests thoughtput you will get much higher, if it tests latency I doubt it. Instead it will stay the same or might even go down a little. If you are running "real time" applications it probably doesnt matter to have more Mhz on RAM but only if CL goes down/stays the same while Mhz goes up (e.g. the RAM works "faster" not only "bigger" if you have both values going away from each other).

I do audio mostly so its not important. Lower CL might help but even more: SSD, More CPUs (Xeon :/), More CPU Cores (i7 970 :/, Xeon :/), More RAM (Not Sandy ;-), Faster CPUs (Sandy :/)

p.s.: get 3x4GB RAM. Get LV or ULV (1.5v or below) RAM :). That will make it a little more future proof. Sadly you can only get triple channel while LGA 2011 is said to be quad channel. So maybe get 6x4 GB RAM directly if they are binned togather you can use 4x4 GB later in LGA 2011 ;-P (only through away 2x4 GB if you want same binned crap).
Click to expand...

It's the same 9.9.9.24
Only a little bit higher clocked.

That really sucks, triple channel is awesome. More slots and in some apps faster.

You are right, LGA 2011 'll be the sh*t.

A mac pro case 'll be a better investment
 
Ok so this one passed a 6 hours test on IntelBurnTest+Prime95 at the same time. Do I need memtest in addition?

Code: 
Advanced Frequency Settings
	CPU Clock Ratio: 23x
	CPU Frequency: 3.818Ghz( 166x23)
	Advanced CPU Features: All/All Enabled
	QPI Clock Ratio: x36
	QPI Link Speed: 6.0Ghz
	Uncore Clock Ratio: x18
	Uncore Frequency: 3000Mhz
	BCLK Frequency(Mhz): 166
	System Memory Multiplier (SPD): 8.0
	Memory Frequency(Mhz): 1333 (Performance: Standard, Quick 9-9-9-25-34)
	PCI Express Frequency(Mhz): 100
Advanced Memory Settings
	System Memory Multiplier (SPD): 8.0
	Memory Frequency(Mhz): 1333
	Performance Enhance: Standard
	DRAM Timing Selectable (SPD): Quick
	Profile DDR Voltage: 1.5V
	Profile QPI Voltage: 1.175V
	Channel Interleaving: 6 Auto
	Rank Interleaving: 4 Auto
	Channel A Timing Settings: 9-9-9-25-34
Advanced Voltage Settings
	Load-Line Calibration: Level 2
	CPU VCore: 1.29375V (1.2875V = 0x3B)
	QPI/Vtt Voltage: 1.195V (1.175 = 0x0A, 1.155V = freeze)
	CPU PLL: Auto
	PCIE: Auto
	QPI PLL: Auto
	IOH Core: Auto
	ICH I/O: Auto
	ICH Core: Auto
	DRAM Voltage: 1.540V

Edit: Yet another 0x3B when shutting down windows after a cold start...
CPU VCore: 1.30000V (1.29375V = 0x3B on windows shut down, 1.2875V = 0x3B)
... now

I also installed another CPU fan (push pull) maybe... its the PSUs fault ,-)


Edit: 24 GB RAM instead of 12 GB RAM and ATI 5850 instead of NVIDIA 8800 GT now. Also I had a 3B crash thus I upped voltage to 1.306something... ran IntelBurnTest at 100% Memory + Prime95 for 7.5 hours without issues (max 66°).
 
I've been playing for a while now and these are the most stable settings I can find at a nice low voltage. 1.23v in CPU-Z 1.2625v in BIOS.

Advanced CPU Features:
CPU Clock Ratio ................................ [19x]

Advanced Frequency Settings
Intel(R) Turbo Boost Tech .................. [Disabled]
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]
Bi-Directional PROCHOT ..................... [Enabled]

Uncore & QPI Features:
QPI Link Speed .............................. x36
Uncore Frequency .......................... x16
Standard Clock Control:
Base Clock (BCLK) Control ................ [Enabled]
BCLK Frequency (MHz) .....................[200]
PCI Express Frequency (MHz) ........... [100]

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

Advanced DRAM Features:
Performance Enhance ...................... [Standard] Check with Manufacturer
Extreme Memory Profile (X.M.P) ......... [Enabled] Disabled if your memory is not X.M.P
System Memory Multiplier (SPD) ........ [8]
DRAM Timing Selectable (SPD) .......... [Quick]
Channel Interleaving ...................[6]
Rank Interleaving ......................[4]

Channel A + B + C

Channel A Timing Settings:
##Channel A Standard Timing Control##
CAS Latency Time ...........................[7] Set to your Cas Latency (example: 7-8-7-20 2T)
tRCD .......................................[8] Set to your Cas Latency (example: 7-8-7-20 2T)
tRP ........................................[7] Set to your Cas Latency (example: 7-8-7-20 2T)
tRAS .......................................[20] Set to your Cas Latency (example: 7-8-7-20 2T)

##Channel A Advanced Timing Control##
tRC ........................................[27]
tRRD .......................................[4]
tWTR .......................................[4]
tWR ........................................[8]
tWTP .......................................[Auto]
tWL ........................................[Auto]
tRFC .......................................[60]
tRTP .......................................[4]
tFAW .......................................[AUTO]
Command Rate (CMD) ................[2]

##Channel A Misc Timing Control##
Round Trip Latency .........................[Auto]
B2B CAS Delay ..............................[Auto]

Advanced Voltage Control:

CPU
Load Line Calibration ................. [Standard]
CPU Vcore ..............................[1.2625v]
QPI/VTT Voltage ...... .................[1.335v]
CPU PLL 1.800v .........................[1.80v]

MCH/ICH
PCIE 1.500v ............................[1.50v]
QPI PLL 1.100v .........................[1.1v]
IOH Core 1.100v ........................[1.2v]
ICH I/O 1.500v .........................[1.5]
ICH Core 1.1v ..........................[1.1v]

DRAM
DRAM Voltage 1.500v ....................[1.66v] or 1.5v dependent on memory
DRAM Termination 0.750v ................[AUTO]
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]

Miscellaneous Settings
Virtualization Technology ................... [Enable]
Isonchronous Frequency ..................[Enabled]
 
Hi,

thanks, as my build above is still not stable I wanted to redo it anway without Load Line Calibration.

Now I am trying your setup and I can boot to windows - only difference is RAM - I got 1.5v RAM (I run it on 1.54v though) ;-)

Your QPI is much higher which means much more broad performance <3. Lets see how hot it runs ;-) (I got mine to 66° running for 8hours IntelBurnTest + Prime95... BUT! When having almost no CPU load I get freezes/crashes/BSOD/panics from time to time... not enought voltage on the core...)

Edit got a 0x50 ... memory/QPI issues... http://www.overclock.net/intel-cpus/935 ... st12310017

Trying with
* higher CL on RAM
* QPI/Vtt Voltage to 1.355
* CPU Multi to 16x (3.2 Ghz)
* CPU Voltage = Auto
^ e.g. I am only testing QPI, Uncore and Memory for stability now.
Open Case, Max Fans, 5min IntelBurnTest + Prime95, 60°
... lets hope its stable.

Edit Success:
5 Hours IntelBurnTest/LinPack+Prime95 with 1.355
5 Hours IntelBurnTest/LinPack+Prime95 with 1.315 - so going with 1.315 now.

Now I am going to OC the CPU cores themselves:

VCore OC
If you are overclocking with power saving features enabled, Gigabyte motherboards will allow you to set the CPU voltage via “Dynamic Vcore” which improves overclocking capabilities while using your power saving features….to unlock this feature; first you have to set the standard Vcore setting to “normal”. Then set the “Dynamic Vcore” setting to +0.05 and increase as directed below.
Click to expand...
http://www.techreaction.net/2010/09/07/ ... ulftown/4/

* Advanded CPU all Enabled
* Tried CPU Voltage = Normal
* Dynamic Voltage (DVID)
Could boot to windows and start CPU testing for 5mins...Seems to work!

Decided to try lower voltages. Also disabling Turbo as Turbo kind of sucks for Audio stuff.
DVID 0.200 => seemed stable for like 5mins at max load at least ;-)
...
DVID 0.050 => hangs on boot
DVID 0.100 => crash on login
DVID 0.150 => BSOD 0xFC while running IntelBurnTest
DVID 0.175 => 0x3B while IntelBurnTest+Prime95+3DMark(loading up;-)
... Now trying 0.200 for a longer time first.


DVID 0.200 = YEAH, its stable. 67°C max. Open Case, Max Fans. But usually I won't use my CPU for 100% for 8 hours ;-)
 
Set your CAS Latency to 8-8-8-24 2T and try.
 
Well CPU-Z says:

533: 7 7 7 20 27
609: 8 8 8 22 30
685: 9 9 9 25 34
761: 10 10 10 28 38

So I will be running it at 200 * 6 = 1 200 DDR3 MHZ = 600 REAL Mhz which is below 609 => 8 8 8 22 30
... but as I had issues I am going back to 9 9 9 25 34 (at 1200 Mhz).
When I find a stable OC I will at the end play with RAM CL...

1. QPI (to 7.2ghz)
2. CPU (to between 3.6-4 ghz)
3. RAM (doesnt matter much)

don't forget... I have 24 GB RAM... makes OCing a little harder.
 
Just out of curiosity, is it unusual for a system to have a sustainable over-clock of 4.5GHz on a Core i7 970, using only air cooling?

Here's the rough specs using the Gigabyte UD3R rev2.0 (FF):

CPU Multiplier = 25x
QPI = 36x
QPI Link = 6.48GHz
Uncore Multiplier = 19x
Uncore Frequency = 3420MHz
Base Clock = 180MHz
Memory Multiplier = 8.0x
Memory Frequency = 1440MHz

I also under-cranked the memory voltages:

Memory Voltage = 1.30v
Memory Terminator = 0.630v
All other Memory values = 0.630v

(Left alone, default memory voltages were approaching 1.65v)

I haven't yet figured out the other voltages for items like the Vcore and CPU itself, outside of being able to recognize their red zone values.

Any thoughts on this one?

So long as I don't exceed the 180MHz base-clock setting at this speed, the system appears to be rock solid. At lower speeds, I can get the base clock up to around 195 though.

I know adjusting the Uncore multiplier allows you to over-clock the memory to a small degree, which can mean a gain of around 100-200 points on a geek bench score (my system rates about 20,000 in it's over clocked state, 14,500 at stock 3.2GHz state), but might not be all that noticeable in a real-world setting.

The QPI setting is a bit more cryptic, so I've opted to avoid the higher settings altogether. (A test of the higher settings at the stock speed yielded no discernible results in benchmark values.) I assume this may be linked to some aspect of the processor apart from overall speed...

Let me know if you have any ideas that I might have overlooked.

Liquid cooling might be interesting, but if the issue that's preventing a base clock of over 180 isn't heat, but a timing issue, it may be best left to a future project. (4.5GHz is pretty much the ceiling with a 180 base clock.)

Another option might be a higher grade of memory, such as a set of XMP modules with the larger heat sinks. (I seem to recall these add settings useful for over-clocking...)

One other factor that may be allowing this to work might be the casing I picked out... the Antec 300 mini-tower. Much of the casing is vented, similar to a G5/Mac Pro casing, and has two fans (one in back, one at the top) along with vents in the side panels.

So far, it's pretty amazing to see this thing has some power to throw around, and I can't wait to see how it handles under a heavy load.


-- Update --

In the time I've been working on this over-clocking project, I've frequently been watching my CPU temperatures in the BIOS, yet, I've never seen those values exceed 41°C. On a hunch, I downloaded the app, Temperature Monitor, to see if I could notice any unusual changes in these values from the BIOS readings.

In light use, such as web browsing, the processor cores averaged 38°C-48°C.

To simulate a more extreme load, I looped GeekBench a few times while watching temperature monitor. The cores bounced between 51°C to 71°C.

So, what kind of temperature would be potentially damaging to the 970? The temperature monitor app seems to consider the upper limit to be around 101°C (approximately the boiling point of water). Yet, I have heard people toss around arbitrary values of 80°C as their rule of thumb value.
 
What's your heat levels. If you wanna use the system longer keep it nice cool. I'd go with 4-4.2ghz, but if you got the lucky CPU and it runs at 200BCLK, 4.5ghz at 65° for 12 hours IntelBurnTest+Prime95 then go for it ;-)
 
My current benchmarks:


Core 3.2 Ghz, QPI 4.8 Ghz, Uncore 2.667 Ghz, BCKL 133, RAM 1333, Turbo ON

32turbo1cinebench.jpg

32turbo1geekbench32.jpg

32turbo1geekbench64.jpg

32turbo1novabench.jpg

32turbo1xbenchnodisk.jpg

^(without Disk, cause mine is very slow)




Core 3.8 Ghz, QPI 7.2 Ghz, Uncore 3.2 Ghz, BCLK 200, RAM 1200 (CL9), Turbo OFF

38turbo0cinebench.jpg

38turbo0geekbench32.jpg

geekbech64.jpg

38turbo0novabench.jpg

ishot3.jpg

^(without Disk, cause mine is very slow)

Esp... Geekbench seems to like fast RAM and the rest does not matter? Will try later with Mac Pro 4.1 and 5.1 and if that doesn't help with Turbo=On. Have to redo OC test then :/ (last stable for 8h max 67°).
 
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