TPU's Core i7 Overclocking and Feedback

Binge said:

huh???



Hey but don't let it get you down. I'm sure they'll get them soon. Especially Performance PCs, send them an e-mail and ask for an ETA. 1-2C is a huge difference in optimal testing conditions.

Click to expand...

from maximum pc overclocking guide

Turbo Talk

One wrinkle to the multiplier is the new Turbo Mode. This mode essentially automatically overclocks a single core of the CPU under certain loads. If you have overclocked a Core i7-920 to 3.66GHz and then you switch on Turbo Mode, the CPU will actually run at 4.03GHz in single-threaded apps. Is it worth it? Frankly, we’re not sure. We are getting to the point where it’s pretty rare to be running performance-intensive single-threaded applications, so the performance boost will be minimal. You do get a 1x multiplier boost in dual-threaded apps so you most games would run at 3.83GHz. Sounds good right?



Our engineering sample Core i7-920 gave us results in line with what others have achieved with engineering sample parts as well as retail parts.

Unfortunately you can’t set your individual Turbo Mode settings on the cheap chips. Intel limits fine-grain Turbo Mode control to the Core i7-965 Extreme Edition. The pedestrian Core i7-920 and Core i7-940 are limited to a single multiplier increase for single-threaded apps, which is of marginal usefulness. It’s also clear that not all motherboard vendors think Turbo Mode is worthwhile. We’ve tested two different Asus boards that don’t implement Turbo Mode the same way Intel does. Instead of letting the user set the individual Turbo Mode settings on an Extreme Edition chip, your only option is to overclock all cores simultaneously.

Turbo Mode is something that should be evaluated based on your needs and the specifics of your overclock. For example, our case study actually found that a moderate overclock with Turbo Mode gave us better benchmark results than a higher-speed overclock without Turbo Mode.

D0 revision looking very good.

doing more testing and hunting down what her max will be. Have fingers crossed for 5.

wheres mine?

Fitseries3 said:

wheres mine?

Click to expand...

They should be on sale soon.

920's will come out as D0's
940's will be renamed to 950's
965's will become the 975's

i wish intel would pull their head outta their asshole and drop the damn prices. this shit is ridiculous.

2x the price for +2 multi.

Naekuh said:

They should be on sale soon.

920's will come out as D0's
940's will be renamed to 950's
965's will become the 975's

Click to expand...

WOW, how about providing info we don't already know..

920 DO - SLBEJ

They are already for sale...

yo yo yo its redraider

What's up Fits...

show us your classified man.

Heh yeah they are for sale but where the hell are they? lol I got one shipped yesterday but have yet to pick it up. Keep your fingers crossed they shipped me the right one ha.

i gotta buy me some more money before i get anything new.

Fitseries3 said:

i gotta buy me some more money before i get anything new.

Click to expand...

MicroCenter and Frys both got in shipments this week that were packaged March 18 2009. They were C0 - SLBCH.

Deductive reasoning would conclude they should have D0 - SLBEJ in 2 weeks...

I hope this information helps to enlighten you NaeKuh...

Here you go Fits...

Still waiting on a 920 - D0...

Fitseries3 said:

i wish intel would pull their head outta their asshole and drop the damn prices. this shit is ridiculous.

2x the price for +2 multi.

Click to expand...

Hopefully AMD will help them with that

trt740 said:

from maximum pc overclocking guide

Turbo Talk

One wrinkle to the multiplier is the new Turbo Mode. This mode essentially automatically overclocks a single core of the CPU under certain loads. If you have overclocked a Core i7-920 to 3.66GHz and then you switch on Turbo Mode, the CPU will actually run at 4.03GHz in single-threaded apps. Is it worth it? Frankly, we’re not sure. We are getting to the point where it’s pretty rare to be running performance-intensive single-threaded applications, so the performance boost will be minimal. You do get a 1x multiplier boost in dual-threaded apps so you most games would run at 3.83GHz. Sounds good right?



Our engineering sample Core i7-920 gave us results in line with what others have achieved with engineering sample parts as well as retail parts.

Unfortunately you can’t set your individual Turbo Mode settings on the cheap chips. Intel limits fine-grain Turbo Mode control to the Core i7-965 Extreme Edition. The pedestrian Core i7-920 and Core i7-940 are limited to a single multiplier increase for single-threaded apps, which is of marginal usefulness. It’s also clear that not all motherboard vendors think Turbo Mode is worthwhile. We’ve tested two different Asus boards that don’t implement Turbo Mode the same way Intel does. Instead of letting the user set the individual Turbo Mode settings on an Extreme Edition chip, your only option is to overclock all cores simultaneously.

Turbo Mode is something that should be evaluated based on your needs and the specifics of your overclock. For example, our case study actually found that a moderate overclock with Turbo Mode gave us better benchmark results than a higher-speed overclock without Turbo Mode.

Click to expand...

that's bullsh*t. WPrime would have turned turbo off since it's a multithreaded app. 4.0ghz vs 4.2ghz vs 4.5ghz shows a difference. Complete BS

dark..... wheres that new toy at?

Maybe i am missing something here but... Why use turbo mode when you can just disable speedstep and use the 21x multi.
You get a 4.0 - 4.2 ghz stable on all four core and everyone is happy.

alright guys...... im shutting you down...

The Haunted said:

Maybe i am missing something here but... Why use turbo mode when you can just disable speedstep and use the 21x multi.
You get a 4.0 - 4.2 ghz stable on all four core and everyone is happy.

Click to expand...

Even if your motherboard "allows" you to choose x21 multi the chips themselves are just using turbo. There's no way in hell turbo will turn itself off for using multi-threaded/multi-core apps. That article/OCing guide is full of it.

Fitseries3

Thats F***ing insane

BTW where do u buy those PCIe extenders from?

not mine....

http://www.overclock.net/overclock-net-folding-home-team/486609-gpu-milking-machine.html

Ok

Dam thats awesome

Binge said:

Even if your motherboard "allows" you to choose x21 multi the chips themselves are just using turbo. There's no way in hell turbo will turn itself off for using multi-threaded/multi-core apps. That article/OCing guide is full of it.

Click to expand...

Okay but look at the multiplers the first core has a max of turbo 22x and the rest 21x why do you suppose that is Binge if they are, full of shit.

example Binge bios settings he posted earlier look a the multipliers according to the overclocking article 22x on core one is used for single threaded apps and 21x is used for dual threaded apps anything after that defaults to x20 and the cores seem to indicate that.
Remember I didn't write the article Maximum PC a major computer magazine did. Just posting what I read.


Genie BIOS Setting

CPU Feature
Set VR Current Limit Max: Enabled
Thermal Management Control: Disabled
EIST Function: Enabled
CxE Function: Disabled
Execute Disable Bit: Disabled
Virtualization Technology: Disabled
TDC Enable: Disabled
x TDC Limit: 0
TDP Enable: Disabled
x TDP Limit: 0

***** Logical Processor Setting *****
Intel HT Technology: Enabled
Active Processor Cores: All

DRAM Timing
Memory Control Setting: AUTO
Memory LowGap: 1536M

DRAM Command Rate: 1N
CAS Latency Time (tCL): 6
RAS# to CAS# Delay (tRCD): 7
RAS# Precharge (tRP): 6
Precharge Delay (tRAS): 16
REF to ACT Delay (tRFC): AUTO
Write to PRE Delay (tWR): AUTO
Rank Write to Read (tWTR): AUTO
ACT to ACT Delay (tRRD): AUTO
Row Cycle Time (tRC): AUTO
Read CAS# Precharge (tRTP): AUTO
Four ACT WIN Time (tFAW): AUTO

Voltage Setting
O.C. Shut Down Free: Enable O.C.S.D.F
CPU VID Control: 1.400V
CPU VID Special Add Limit: Disabled
CPU VID Special Add: Auto
Vcore Droop Control: Disabled
DRAM Bus Voltage: 1.65v
DRAM PWM Switch Frequency: Decrease 15%
DRAM PWM Phase Control: 2 Phase Operation
CPU VTT Special Add: AUTO
CPU VTT Voltage: 1.37v
VTT PWM Switch Frequency: Increase 15%
VTT PWM Phase Control: 2 Phase Operation
CPU PLL Voltage: 1.80v
IOH/ICH 1.1V Voltage: 1.21v
IOH Analog Voltage: 1.15v
ICH 1.5 Voltage: 1.7v
ICH 1.05V Voltage: 1.05v
DIMM 1/2 DQ/DQSTB Bus VREF: -00.0%
DIMM 3/4 DQ/DQSTB Bus VREF: -00.0%
DIMM 5/6 DQ/DQSTB Bus VREF: -00.0%
ADDR/CMD VREF Control: Enabled
x DIMM 1/2 ADDR/CMD Bus VREF: 95
x DIMM 3/4 ADDR/CMD Bus VREF: 94
x DIMM 5/6 ADDR/CMD Bus VREF: 95
CPU QPI Drive Strength: Normal
IOH QPI Drive Strength: Normal

Exit Setup Shut down: Mode 2
O.C. Fail Retry Counter: Enabled
O.C. Fail CMOS Reload: Disabled

PPM Function: Enabled
Turbo Mode Function: Enabled
1 core Max Turbo Ratio: 22x
2 core Max Turbo Ratio: 21x
3 core Max Turbo Ratio: 21x
4 core Max Turbo Ratio: 21x
CPU Non-Turbo Clock Ratio: 20x

* BCLK/UCLK/QPI Controller Settings *
QPI Control Settings: Enabled
QPI Link Fast Mode: Enabled
QPI Frequency: AUTO
CPU Base Clock (BCLK): 200 Mhz
Boot Up CPU Base Clock: AUTO
PCIE Clock: 100 Mhz
DRAM Frequency: 1600MHz
UnCore Frequency: 3466MHz

CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Disabled

But you are confusing people saying that TURBO IS BAD. The way that article is worded and the way you word it makes me think that turbo ON = x21 sometimes but mostly x20. That is not the case. If you turn turbo on with most boards it will stay x21 especially if you know how to set it correctly. For x21 ALL THE TIME with DFI

Set VR Current Limit Max: Enabled
Thermal Management Control: Disabled
EIST Function: Enabled
PPM Function: Enabled
Turbo Mode Function: Enabled

Lastly make sure you turn off all energy saving settings like C-states.

::EDIT:: This is the quote I have problems with...

NonRetailCPUReview said:

Unfortunately you can’t set your individual Turbo Mode settings on the cheap chips. Intel limits fine-grain Turbo Mode control to the Core i7-965 Extreme Edition. The pedestrian Core i7-920 and Core i7-940 are limited to a single multiplier increase for single-threaded apps, which is of marginal usefulness. It’s also clear that not all motherboard vendors think Turbo Mode is worthwhile. We’ve tested two different Asus boards that don’t implement Turbo Mode the same way Intel does. Instead of letting the user set the individual Turbo Mode settings on an Extreme Edition chip, your only option is to overclock all cores simultaneously.

Click to expand...

If this was indeed the case then my dual threaded apps would not get x21. They found that in retail i7920 and 940 that the TURBO mode is handled on the motherboard end. Most motherboards have a way around turbo throttling. With the DFI this is controlled with the Set VR Current Limit Max: Enabled option with the rest of the turbo functions on as well. If you turn that off then your multiplier will throttle under load from a multi-threaded app. Why is this? Because it limits the multiplier when all threads are being used based on the TDP of the cpu. If it's cold enough and Set VR Current Limit Max: is Disabled then you will keep your x21, but since most of us can't get that cold we just Enable the option and rock out with full x21.