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Corei7 930 overclocking

C

crazzyxjoex

Weaksauce
Joined
Jan 1, 2012
Messages
64
Hi there I'm a bit new to overclocking and have my current setup with an i7 930 stable at 4.2ghz stable and the temps running around 32-36 degrees. My question is, is this as far as i should go or is it safe for me to push the cpu more? and how much more can i push it?
 
crazzyxjoex said:
Hi there I'm a bit new to overclocking and have my current setup with an i7 930 stable at 4.2ghz stable and the temps running around 32-36 degrees. My question is, is this as far as i should go or is it safe for me to push the cpu more? and how much more can i push it?
Click to expand...

32-36 degrees? Under load it will probably be 80ish assuming your on air or a corsair h cooler.
 
Can you tell us a little more about the system you are using? like what motherboard and CPU cooler are you using?
 
I'm using an evga motherboard the sli3 one, and h100 cooler, when i play any games on it the highest ive seen it go was about 67. but ill run prime on it tonight after work to see how high the temps are
 
Games will be considerably cooler then prime95.

As for safety, it probably depends on the hottest load temperature, as well as the voltages you are using.
 
The better "Bloomfield" samples can run ~4.4/4.5Ghz with good cooling (water).

You might want to try 21x210... depending on your particular chip and temps.
 
Wow so i fiddled around a bit in the bios before i ran prime and im getting much better temps that i've previously seen, ran prime for about an hour and the peak temp was 66, but stayed around 64-65 most the time. this is with the cpu clocked at 4.2
 
What's your voltage?

Try using LinX. Those are fairly good temps, you have some headroom for further overclocking.
 
Those are good temps for that amount of OC, what are your voltages?
 
I just don't see 66° Celsius (which was first what he stated he was getting while gaming) as being a primed full load on our setups. I'm actually priming an i7 930 as I type this just for kicks because my lazy ass finally installed my Corsair H100 into my Antec Twelve Hundred case. Here's my info as of right now.





It has been priming for around two+ hours so my room has heated up some to around 77° Fahrenheit. I also used an Indigo Xtreme thermal interface kit when I installed my H100 too which is why I'm so surprised at his temps. I also have my H100 set on high right now. I wouldn't get his temps if I had no case or room temp rise (well, maybe then I would).

1. What fan config are you using on your H100 OP?
2. CPU voltages? (All CPU voltages)
3. Anything else that might be useful?
 
AnonymousUser said:
I just don't see 66° Celsius (which was first what he stated he was getting while gaming) as being a primed full load on our setups. I'm actually priming an i7 930 as I type this just for kicks because my lazy ass finally installed my Corsair H100 into my Antec Twelve Hundred case. Here's my info as of right now.

It has been priming for around two+ hours so my room has heated up some to around 77° Fahrenheit. I also used an Indigo Xtreme thermal interface kit when I installed my H100 too which is why I'm so surprised at his temps. I also have my H100 set on high right now. I wouldn't get his temps if I had no case or room temp rise (well, maybe then I would).

1. What fan config are you using on your H100 OP?
2. CPU voltages? (All CPU voltages)
3. Anything else that might be useful?
Click to expand...

Your voltage is fairly high for just 4.0 ghz, you probably have a CPU that runs hotter.

Mine, for example, is able to run 4.0 ghz at 1.275 v read in CPU-Z. Temps are significantly lower than temps at 1.31 v, which is what I need to run at 4.2 ghz with 24gb RAM.
 
Tsumi said:
Your voltage is fairly high for just 4.0 ghz, you probably have a CPU that runs hotter.

Mine, for example, is able to run 4.0 ghz at 1.275 v read in CPU-Z. Temps are significantly lower than temps at 1.31 v, which is what I need to run at 4.2 ghz with 24gb RAM.
Click to expand...

Hmmm, I thought my volts were about normal from past reading (shrugs). Mine does crash though if I run anything lower so I guess I got one that runs hot :(.


Mine, for example, is able to run 4.0 ghz at 1.275 v
Click to expand...

Is the CPU core voltage the only thing you changed for that OC as far as your CPU is concerned? Just wondering if I could possibly up another areas voltage and lower my CPU's core voltage for a lower temped OC.
 
Last edited:
I have my QPI running at 1.3 or something like that and CPU PLL at 1.88. Increasing the two of those helps bring down your vcore.
 
Sorry for not replying to you guys, been messing around in the bios, but to answer the voltage question, i had its at1.425 with the cpu at 4.2
anom: I have the indigo ecteme as well and have two slipstreams pushing air from in the case to the top and have no side panel on my computer
currently running it at 43 havent primed it yet, as its getting late but will in the morning.
really crazy but my idle temps are 29-30 now
 
Tsumi said:
I have my QPI running at 1.3 or something like that and CPU PLL at 1.88. Increasing the two of those helps bring down your vcore.
Click to expand...

Set those settings that you mentioned above then set my vcore to 1.3, failed 30 minutes into prime. Changed my OC to 21 x 191 instead of 20 x 200 while keeping the other settings you mentioned in place, Prime stable for over 2 1/2 hours so far. Weird...lol. You helped me get my vcore from 1.36 down to 1.3 as of right now using those tweaks, THANKS!


Gonna see if I can lower the vcore more at this speed and/or get more speed with a little more volts.

This is after two and a half hours of Prime.



Note: My room was 4° Fahrenheit cooler as it was night compared to earlier when I did it in the day. Just an fyi.
 
Ambient temps are always an important consideration when overclocking. Some chips are low VID (high leakage) run hotter and others can be higher VID (low leakage) and run cooler.

Here is a screenshot of my wife's Bloomfield (W3540) air cooled with a TR HR-02 and a single 140mm fan. This chip can do more... but in my opinion it would require better cooling (water) for a higher clocked 24/7 type usage.

~17 hrs. WCG load, ambient temp ~22.8C. :
W354040WCGload-1.png
 
PolRoger90 said:
Ambient temps are always an important consideration when overclocking. Some chips are low VID (high leakage) run hotter and others can be higher VID (low leakage) and run cooler.

Here is a screenshot of my wife's Bloomfield (W3540)
Click to expand...


Shows how much I know. I didn't even know there was Xeon versions of the my i7 930 I could've went with instead. :( An unlocked multi (I think, well higher multi at least) and 1.2 vcore @ 4ghz. NICE!!! That said I was over volting mine as it seems to be much better with a 21 multi and lower volts. I had it priming for a an hour at 1.275 vcore like Tsumi mentioned his does until I lwoered it more to where it becamse unstable...lol. I think I tried too hard to always get the 20 multi to work so I just kept increasing the voltage (shrugs). Live and learn.

PolRoger90, with an H100 on that setup it'd be in the high 50's under Prime, that'd be awesome!
PolRoger90, is there a Xeon version of the six core socket 1366 i7's?
 
@AnonymousUser:

This chip is the equivalent of an i7 940 except that it is a D0 revision. The original i7 940's are all "C0" and were replaced by i7 950's which are also "D0" revision. The Xeon version of the i7 930 is the W3530 and the i7 920 is the W3520. There are also equivalent XEON cpu for the unlocked i7 45nm Extreme series and even the newer socket 1366 32nm 6-core cpu's.

With good watercooling this one could probably do ~4.4/4.5Ghz.
 
Xeon chips are typically better binned than equivalent Core chips, so they generally run cooler with less voltage. But the tradeoff is cost: Xeons are at least $100 more expensive, if not more.
 
Wow I must be doing something wrong my voltage is high in comparison yo what everyone else has
 
I would like to increase the performance on my 930, but I'm afraid that my H50 won't be able to handle it. My idle temp is roughly in the low 40's. I did lower the voltage to 1.2v
 
crazzyxjoex said:
Wow I must be doing something wrong my voltage is high in comparison yo what everyone else has
Click to expand...

How much vcore does your chip require to run 191x21@4.0Ghz? There are plenty of samples out there that require ~1.3/1.325/1.35v.
 
The absolute lowest vcore that keeps my i7 930 DO stable @ 4ghz is 1.3 in the BIOS (1.288 in CPU-Z). That's with CPU-PLL @ 1.88 and the QPI @ 1.3. I was overvolting it at 1.36 though...lol.

Not as great as one could wish for but not bad either. I even ran Prime95 on it for 12 hours without a hiccup (my new H100 is pretty good I must say) and temps averaged high 60's (Celsius).


I even tried to take it to 4.2ghz but it was still unstable running 1.35 vcore so I said screw it. :(
 
AnonymousUser said:
I even tried to take it to 4.2ghz but it was still unstable running 1.35 vcore so I said screw it. :(
Click to expand...

Maybe if you bumped vcore up to ~1.375v for 4.2Ghz? Then the question is... do you run a "daily" 4.0Ghz with ~1.3v or 4.2 with higher volts or maybe even something like 4.1 by splitting the vcore requirement somewhere in between the other two?
 
PolRoger90 said:
Maybe if you bumped vcore up to ~1.375v for 4.2Ghz? Then the question is... do you run a "daily" 4.0Ghz with ~1.3v or 4.2 with higher volts or maybe even something like 4.1 by splitting the vcore requirement somewhere in between the other two?
Click to expand...

Just doesn't seem worth it to run that much vcore for day to day use. My room already heats up rather easily now. More vcore, more heat. I'll stick with 1.3 @4zghz. I plan on moving to an Ivy-E six or more core CPU whenever that comes out (late 2012).


This should suffice until then. Well unless you want to trade cpu's....lol...J/K. Or if I got lucky, find a Xeon W3680 six core CPU
to throw in this rig but they want too much for old(er) tech.
 
I know what you mean... with my 2600K's which have recently been converted to watercooling... I ask my self similar questions, should I run 48x with ~1.37v load or 49x with ~1.40v load, whereas previously while air cooled I was running 46x with ~1.30/1.32v load.
 
AnonymousUser said:
The absolute lowest vcore that keeps my i7 930 DO stable @ 4ghz is 1.3 in the BIOS (1.288 in CPU-Z). That's with CPU-PLL @ 1.88 and the QPI @ 1.3. I was overvolting it at 1.36 though...lol.]

+1

I just OC'ed my 930 to 4.01 and 1.3 Vcore was the lowest stable voltage I could get. At full load it is in the low 70's.
Click to expand...
 
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