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I7 920@ 3.51Ghz Low Voltage

Last response: in Overclocking
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May 15, 2010 5:44:57 PM

hello guys...i am really new in overclocking....and i wanna ask something about my overclocking...my i7 cpu can stable at low voltage at high speed...i already done some stability test...does my voltage reasonable at that high speed...??? i also run occt linpack for 1 hour and prime95(blend) for 3 hour and its stable...i havent seen people used that voltage at that speed...but my cpu can do that...or i need to run other stabilty test??sorry about my bad english...

what i was set in bios like this:

Quote:
GIGABYTE GA-X58A-UD7
MB Intelligent Tweaker(M.I.T.)
Advanced CPU Features {Press Enter]
CPU Clock Ratio............................: 20
CPU Frequency .....(Ghz)...................:3.34
Intel(R) Turbo Boost Tech..................:[Enable]
CPU Cores Enabled..........................:[All]
CPU Multi Threading........................:[Enabled]
CPU Enhanced Halt (C1E)....................:[Enabled]
C3/C6/C7 State Support.....................:[Disabled]
CPU Thermal Monitor........................:[Enabled]
CPU EIST Function..........................:[Enabled]
Bi-Directional PROCHOT.....................:[Enabled]
Virtualization Technology..................:[Enabled]

Uncore & QPI Features [Press Enter]
QPI Clock Ratio*...........................:36
QPI Link Speed* ......................(Ghz):6.01
Uncore Clock Ratio.........................:x17
Uncore Frequency......................(Mhz):2,839
Isochronous Support........................:[Enabled]
Advanced Clock Control [Press Enter]
>>>>>Standard Clock Control
Base Clock (BCLK) Control*.................:[Enabled]
BCLK Frequency (Mhz)*......................:167
PCI Exxpress Frequency (Mhz)...............:100
>>>>>Standard Clock Control
CPU Clock Drive (mV).......................:700
PCI Express Clock Drive (mV)..............:700
CPU Clock Skew (ps)........................:0
IOH Clock Skew (ps)........................:0
Advanced Dram Features [Press Enter}
Performance Enhance........................:[Turbo]
Extreme Memory Profile (X.M.P.)............:[Disabled]
System Memory Multiplier (SPD).............:x8
Memory Frequency (Mhz).....................:1,336
DRAM Timing Selectable (sPD) ..............:[Auto]

Advanced Voltage Control [Press Enter]
>>>>CPU Voltages
LoadLine Calibration.........................:[Standard]
CPU Vcore....................................:1.12500v
QPI/VTT Voltage..............................:1.235v
CPU PLL......................................: 1.80v
>>>>>MCH/ICH Voltrage
PCIE.........................................: 1.50v
QPI PLL......................................: 1.10v
IOH Core.....................................:1.10v
ICH I/O......................................: 1.50v
ICH Core.....................................:1.10v
>>>>>Dram
DRAM Voltage.................................:1.60v
DRAM Termination.............................: [Auto]
Ch-A Data Vref...............................:[Auto]
Ch-B Data Vref...............................:[Auto]
Ch-C Data VRef...............................:[Auto]
Ch-A Address Vref............................:[Auto]
Ch-B Address Vref............................:[Auto]
Ch-C Address VRef............................: [Auto]


More about : 920 51ghz low voltage

a b K Overclocking
a b à CPUs
May 16, 2010 7:02:54 AM

Well, if you're running it stable at 3.51GHz with just 1.125V, then it's ok - seems like you've got a pretty good chip.
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May 16, 2010 1:46:59 PM

SORRY MY BAD I MENT 1.15 NOT 1.5 IT CAN FRY UR CPU AND UD7
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May 16, 2010 1:47:06 PM

yes it isnt ur chip its d power of ur board even i am on the same oc with my i7 920do with d same settings if ur still unshore u can raise ur core voltage to 1.5 and it should be all good

i have a x58a ud5
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May 16, 2010 2:37:54 PM

one think that i worried about a lot of different between vcore and qpi/vtt voltage...is it same like that the difference between QPI and DRAM is less than 0.5v??

@ Lmeow

thanks...but i think it's not because of a good chip only..maybe caused my motherboard...

@Devam

i will try it later because i'm not at home right now...thanks...
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Best solution

May 18, 2010 8:30:23 AM

listen 3.33GHZ is not a heavy oc for niether ur i7 nor main board if ur afraid dat uve messed up ur settings just raise ur blck to 166 and core voltage to 1.15 dont mess around with any thing else and pls disable intel speed step c1e it is use less if ur using windows 7 (use balanced in power saver)

and if u want to reach 3.8GHZ 24/7 stable use these settings i found for gigabyte x58 series

http://i40.tinypic.com/2z3w377.jpg

With these settings i was able to get my i7 920 to 3.8GHZ stable even after 8 hours of prime 95 and my idles went from 43-45 to 39-40 and loads went from 71-72 to 64-66 so best of luck with these settings and if want any suggestions or i may need any from u my email is


devamsingh@gmail.com
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May 18, 2010 6:26:37 PM

Are those shots with a load on it? The temps seem awfully high for idle

Edit:I just noticed it was at idle. I'm going to assume you're using the stock cooler? What are the temps like at full load?
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May 18, 2010 7:58:59 PM

@devam thanks mate..hope that will help me...

@paigeinfull actually,my cpu idle temp 41-43 as you can see minimum temp on real temp..i'm using cooler master v8.i run stress test a second to show the highest core speed because at idle,the multiplier is only 12 that it will shown core speed 2004mhz only... :D  ...full load temp 65-67 linx(while prime95 62-64) and while gaming 50-53...

sorry again about my bad english...hope you guys understand me...
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May 26, 2010 9:17:08 AM

fisshy said:
^ read through this, its acctually created for your CPU.
everyone ive talked to says this sticky is pretty good, good luck there man

http://www.overclock.net/intel-cpus/538439-guide-overcl...


thanks fisshy...i have used that guide to help me overclock my cpu...it's help me a lot...if my cpu idle temp was 43-41-43-41..is that safe temp at idle???...i can't move the clock over than that because idle temp become too hot..it will go 46-48-47-49...maybe it because i just using cooler master v8...i have try to find prolimatech but my country very difficult to find it...someone tell me that i should try reseat the heat sink...but,one more thing i know nothing about the technician... :D 
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a b K Overclocking
May 26, 2010 11:49:40 AM

Could you post some Load test temps (using prime 95)... just don't let those temps over 75'C watch carefully!

Idle temps don't mean squat if as soon as you Put it under load it overheats!

look rather for a CM hyper 212 + if you are on a budget, or a Zalman CNPS10X Quiet or CNPS10X extreme if you are feeling rich ;) 

Good luck and send us those screen shots as soon as possible!
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May 26, 2010 2:46:06 PM

Nice o/c, my core i7 920 is jealous because it would like the same Vcore. I o/c at 3.4 ghz with 1.16V

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May 26, 2010 4:46:16 PM

@fisshy

did you mean i no need to worried if it's go 46-48-47-49 at idle??

@clement4413

thanks man...what voltage you used for qpi??

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May 26, 2010 5:02:21 PM

prime95 load temp



another stability test



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May 26, 2010 7:12:47 PM

under18 said:
@fisshy

did you mean i no need to worried if it's go 46-48-47-49 at idle??

@clement4413

thanks man...what voltage you used for qpi??


QPI/DRAM voltage : 1.3V
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a b K Overclocking
May 27, 2010 1:48:54 PM

^ those temps are fine... your idle temps dont really help in analysing your cooling setup, its the Max temps that do!

You temps are ok... could be better but they shouldnt damage the cpu at all! nice OC
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May 28, 2010 3:33:47 PM

thanks again m8...if that temp are ok that mean i will leave it at that speed of cpu because i try to push it higher than that but the idle temp too high...thank to all of you help me in overclocking
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a b K Overclocking
June 3, 2010 2:43:27 PM

^ its a pleasure

Welcome to Toms Hardware
Enjoy your OC
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July 18, 2010 5:37:53 PM

Best answer selected by under18.
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!