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Discussion Starter · #1 ·

Intel Core i3 Owners Club

Ideas/suggestions for the front page are appreciated. Anyone that wants to officially join, just post up your processor model (530, 540, or 550), your highest stable OC and, since these are supposed to be the low volt chips, your vcore - and I'll add you to this post.

Note: club now open to any Clarkdale owner. They're all the same chip, so why support Intel's intentionally confusing marketing?

All new members/posters, please include your chip model (530 or 540), batch number, and VID in your first post. Even if you don't care about "joining" the club, it would be much appreciated if all i3 owners could post this information. The information is helpful to those guests and future users browsing the thread, as well as members and guests that are doing research while shopping.

Members:
Sandy Bridge in orange

AyeYo - Core i3 530/4.0ghz/1.192v - 4.4ghz/1.328v
shnur - Core i3 530/2.93ghz/stock
kroaton - Core i3 530/4.6ghz/1.424v
Prelude - Core i3 530/4.01ghz/1.232v - 5.02ghz/1.592v
Smax4 - Core i3 530/4.00ghz/1.232v
SickStew - Core i5 650/4.60ghz/1.385v
preyash - Core i3 530/4.20ghz/1.344v
benyu - Core i3 530/4.00ghz/1.200v
Tator Tot - Core i3 330m/2.13ghz/1.050v
jtluongo - Core i3 530/3.52ghz/1.152v
boxy44 - Core i3 530/4.00ghz/1.200v
hbeevers - Core i3 530/3.99ghz/1.36v
hardly - Core i3 530/4.3ghz/1.336v
aunaturalantony - Core i3 330m/2.13ghz
col musstard - Core i3 530/3.65ghz/1.152v
4x4n - Core i3 550/4.51ghz/1.408v - 4.944ghz/1.520v (IGP enabled)
JTK21351 - Core i3 530/4.21ghz/1.328v
NAP - Core i3 530/4.31ghz/1.332v
levontraut - Core i3 330m/2.13mhz
Shev7chenko - Core i3 330m/2.13mhz
DG170775 - Core i3 530/4.00ghz/1.224v
TheOcelot - Core i3 550/4.2ghz/1.320v
ekg84 - Core i3 540/4.0ghz/1.240v
ammarmalik - Core i3 530/4.0ghz/1.25v
bahmtf - Core i3 530/4.0ghz/1.392v
camry racing - Core i3 540/3.77ghz/1.132v
Sam Maghsoodloo - Core i3 540/stock
jdmfish - Core i3 530/4.01ghz/1.294v
Razi3l - Core i3 540/3.22ghz/1.215v
michintom - Core i3 530/4.20ghz/1.312v
Ste v - Core i3 530/3.52ghz/1.152v
ben h - Core i3 530/5.01ghz/1.568v
IonFive - Core i3 530/4.12ghz/1.368v
loliarkanoid - Core i3 530/4.42ghz/1.328v
hardypham - Core i3 530/4.02ghz/1.296v
Satans Hell - Core i3 530/4.0ghz/1.23v
americanz - Core i3 530/3.99ghz/1.128v
ryanbob1234 - Core i3 330m
newpc - Core i3 540/4.7ghz/1.40v
Fletcherea - Core i3 550/4.02ghz/1.272v
1337guy - Core i3 550/4.0ghz/1.256v
anubis1127 - Core i3 530
xJavontax - Core i3 2100

Sig Tag:

Code:

Code:
[CODE]
[CENTER]:wheee:[URL="http://www.overclock.net/intel-cpus/653618-official-core-i3-owners-club.html#post8255686"][B][U]Intel Core i3 Owners Club[/U][/B][/URL]:wheee:[/CENTER]
[/CODE]

Relevant threads:

i7 vs. i3 gaming performance:
http://www.overclock.net/intel-cpus/...ght-would.html
http://www.overclock.net/intel-cpus/...omparison.html

Hyperthreading on vs. off:
http://www.overclock.net/general-pro...bled-real.html

Voltage/Temperature Information:

PLEASE, observe Intel voltage specifications and do your research. These are not 45nm chips and they WILL NOT tolerate the same voltages.
Clarkdale dies with the quickness at 1.475 vcore



Keep in mind, these are MAXIMUM ABSOLUTE voltages before physical damage occures. These are NOT 24/7 save maximums - those will be substantially lower. If using LLC, your 24/7 voltage will have to be even lower still.

Tcase for these chips is 72.6C. They should not be run above this in 24/7 usage - OC and cool appropriately.

Intel spec sheet for i3 530

Core voltage tolerance in relation to current draw:




Clarkdale/H55 platform overview:


Original, pre-club first post that started this thread:

Quote:
Well, now that I've got the GPU squared away (get the easy stuff out of the way first) I'm going to give the CPU a rip.

What I'm looking for though is only a stock voltage OC. From what I've read on this site, step one is to get my base voltage by running Prime95 and checking CPU-Z, which I've done, then manually set this as the vcore. Next would be to lock the PCI bus at 100mhz, then turn off all the power saving and such stuff. Once all that is done. Should I only be upping the base clock? Do I have to worry about QPI and such?

There's so many different voltage settings on this board I'm afraid I'm going to screw something up and fry my new chip. I've read up everything I could find on my own, but, this being my first real OC, I'd feel more comfortable if someone walked me through step by step.
 

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Discussion Starter · #3 ·
Good link, but what I need help with is the specific BIOS settings. For example, in the BIOS, I set the CPU voltage from "offset" to "manual", which then brings up the option for "CPU fixed voltage". I'm assuming this is the vcore setting. This setting is moveable in steps of 0.00625v. This makes me overshoot my CPU-Z voltage of 1.176v to around 1.18, is this ok?

Also, there's an option for CPU PLL voltage, what is this for?

Then there's Load-line Calibration, which defaults to Auto. The ASUS manual describes the settings as:

Auto - automatic configuration
Disabled - follow Intel specs
Enabled - Improve CPU vdroop directly

Why wouldn't this default to disabled in the first place, and should I disable it while OC'ing?

Forgive the newbishness, but this MB manual is clearly written for people that already understand all the settings and I just don't want to fry my brand new chip.
 

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The cpu pll is the cpu's internal clock generator. You can leave that at stock, but some people have found that more or less can help stability in different situations.

Load-line calibration overides intel's vdroop technology. vdroop is the motherboard artificially raising cpu volts during load, in order to protect the cpu from voltage spikes/dips when transitioning between high and low loads. Most people turn LLC on for higher overclocks, as it "lowers" the vcore required.

If you haven't already, try googleing "p7h44-m pro overclocking guide" or something like that.
 

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Discussion Starter · #6 ·
Yea, there's not a whole lot on this board, it's pretty new.

I think I've got the hang of the voltage settings now, but one more question: is it safe to leave all the other voltages (like CPU PLL for example) on "auto" or is that unsafe in the same way that leaving vcore on "auto" is unsafe? This BIOS doesn't show what the actual stock settings are, it just shows things on auto.
 

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Quote:
Yea, there's not a whole lot on this board, it's pretty new.
lol i was afraid of that.

If it were me, i'd set manual values for everything that is currently on auto... but im kinda anal retentive that way. For mild to moderate overclocks, auto shouldn't produce any weird settings/values... but when you start getting more serious OCs, manual settings are a must.
 

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For me, mild = stock vcore, moderate = 50% or less of maximum vcore (example: stock is 1.0v, max is 1.5v, moderate = 1.25v or less). Thats by no means an official rateing or anything, but just kinda makes sense to me


If they are values for the cpu (like vcore, vtt, pll, etc), then they are determined by your cpu. If its stuff for the motherboard (IOH, ICH, pci-e, etc), then you can probably assume that similar lga1156 motherboard share the same limits/defaults.

You could download a program like Everest, which can read just about every voltage and frequency you can imagine, and write down what everything is running at.
 

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I just bought a i3 530 and a Gigabyte P55M-UD4 motherboard, and I am in the process of trying to figure it out as well.

My last overclocking was an Athlon X2 probably 3 years ago, so things have changed a bit.

Once I get my Windows 7 issue solve (reinstalling now), I will see about overclocking.

One issue I noticed was that the board is downclocking the RAM. I have 1600MHz Corsair XMS3 RAM, and if I set the RAM multiplier to 10x, BCLK to 160, the board seems like it will run the ram at 1600, but upon rebooting it changes the RAM to 8x to run at <1300. It seems to not want to run it above 1333, which was the default.

I will report anything I find, and I look forward to hearing your experience.
 

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An interesting tidbit that may be related to the ram issue: Bloomfield (i7 9xx) officially supported ddr3 800 and 1067 ONLY. With Lynnfield and Clarkdale (i7 8xx, and i5/i3), the official supported ram speed was increased to 1333mhz. Now you can obviously reach much higher ram speeds by overclocking, but that max supported ram speed of 1333mhz and your motherboard running your ram at 1333mhz may not be a coincidence. An updated bios may fix this though.
 

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I wouldn't think it would be too hard. Use any OC guide for i5/i7(8XX). Although your board doesn't sound like it's made for OCing.
I'll look up that board
 

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Discussion Starter · #13 ·
Quote:

Originally Posted by Artmasterx View Post
I just bought a i3 530 and a Gigabyte P55M-UD4 motherboard, and I am in the process of trying to figure it out as well.

My last overclocking was an Athlon X2 probably 3 years ago, so things have changed a bit.

Once I get my Windows 7 issue solve (reinstalling now), I will see about overclocking.

One issue I noticed was that the board is downclocking the RAM. I have 1600MHz Corsair XMS3 RAM, and if I set the RAM multiplier to 10x, BCLK to 160, the board seems like it will run the ram at 1600, but upon rebooting it changes the RAM to 8x to run at <1300. It seems to not want to run it above 1333, which was the default.

I will report anything I find, and I look forward to hearing your experience.

This is interesting because my MB manual mentions something about Clarkdale chips not supporting 1600mhz memory in dual channel. My board also downclocks my memory, although getting it back up to 1600mhz is actually my OC target.

My board does have a nice feature that automatically lowers the CPU multiplier and increases the BCLK to keep stock CPU speed while allowing the ram to be run at 1600mhz in dual channel. I never bothered to use it.

According to the manual though, you can put two 1600mhz sticks in separate channels and run them each in single channel at 1600mhz. Don't ask me why you would want to do this, but it says it's an option. lol I've also never tried that either.

As for my actual OC... So far I'm showing 3221mhz at stock voltage, 146mhz BLCK x22 (which I just realized adds up to 3212, not 3221, maybe CPUZ is dyslexic
), and DIMM at 1436mhz (or whatever it says in my sig rig profile). Prime95 stable for an hour, which is all the time I had to test it. I'm going to run IBT when I get home and run Prime blend for at least two hours before going higher.
 

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I think a BIOS update would be helpful... Gigabyte has a new beta version but I am not sure I want to try it yet.

So, the memory actually does overclock. However, it appears that when in the BIOS that it is downclocked (maybe for stability), but once I boot into Windows it shows up as being overclocked. Also, running memtest shows that it is overclocked.

However, the ratios are very limited for QPI, memory, and uncore multipliers. The uncore only allows auto or a 12x multiplier, which is unfortunate given that I have read the uncore should run at twice the memory speed.

I have it stable @3.4GHz at the moment (155x22) on 1.3V.

I think an updated BIOS for Clarkdales will help to some degree. I will keep updating.
 

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Discussion Starter · #15 ·
Quote:

Originally Posted by Artmasterx View Post
I think a BIOS update would be helpful... Gigabyte has a new beta version but I am not sure I want to try it yet.

So, the memory actually does overclock. However, it appears that when in the BIOS that it is downclocked (maybe for stability), but once I boot into Windows it shows up as being overclocked. Also, running memtest shows that it is overclocked.

However, the ratios are very limited for QPI, memory, and uncore multipliers. The uncore only allows auto or a 12x multiplier, which is unfortunate given that I have read the uncore should run at twice the memory speed.

I have it stable @3.4GHz at the moment (155x22) on 1.3V.

I think an updated BIOS for Clarkdales will help to some degree. I will keep updating.
Interesting.

ASUS has an update available, but it's simply to add RAID support.

I'm at 3375mhz, 160.7x21 (160x21 set, CPU-Z shows the 160.7) on 1.152v. QPI is at 3213 and DIMM is at 1600.

Ran Prime small FFTs for an hour, no issues. IBT run at max with no issues at all. About to run Linx on it right now. If that passes I'm going to try going to try 22x.

Your volts seem awefully high. Anandtech was doing 4ghz at that voltage.
 

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So I installed the beta BIOS update. It doesn't have all the tweaks enabled yet, but it did add memory support for my Corsair and picks up the XMP profile now.

It seems to have made overclocking stability better as well. The BIOS mentioned something about fixing a problem that Clarkdales couldn't go over 160 BCLK, so it may have increased overclocking support in general.

I dropped the voltage back down the stock, which is 1.18V under load with LLC enabled. I am running the BCLK at 160 right now for 3.5GHz. I have my memory running at 8x, so it is downclocked a little to make sure it does not cause any issues.

Prime95 has run for 30 minute or so with no issues, max temps are around 45C.

I will keep pushing higher on stock volts and see where I can get. This new BIOS (ver.7) seems necessary to really effectively overclock the Clarkdales on the Gigabyte P55m-UD4.

I will keep you updated.
LL
 

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Discussion Starter · #18 ·
Quote:

Originally Posted by Artmasterx View Post
I dropped the voltage back down the stock, which is 1.18V under load with LLC enabled. I am running the BCLK at 160 right now for 3.5GHz. I have my memory running at 8x, so it is downclocked a little to make sure it does not cause any issues.

Prime95 has run for 30 minute or so with no issues, max temps are around 45C.

Glad to hear you're having good luck with it.

I'm currently running the same. 160mhz BLCK and now back to the 22x multiplier, still on 1.152v (no LLC). Just went through 20 runs of Linx (1 1/2 hours) without an issue.



Given how low the voltage still is, I want to test it some more. I was really expected it to fail this time. If all is still well after some IBT and Prime I'm going to up the QPI to 3500 and see what happens.
 

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Glad to hear your chip is doing well too. You are probably about to hit the wall on stock volts if my chip is similar.

I have just finished running 6hrs of Prime95 at a BCLK of 164 for 3.6GHz... again stock voltage with LLC.

I had 166 working, but went to 170 and it was no longer stable (crashed getting into windows).

3.6GHz seems very stable, again with the memory running at about 1310MHz. I only have the choice of an 6, 8, or 10x multiplier at the moment. I will have to see if going to a 10x on the memory will be stable as well.

I am curious what 1.25 or 1.30V will get us. So far I can't complain.

My goal may be to hit a 200 BCLK, run a 20x multi for the CPU and an 8x for the RAM.
LL
 

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Discussion Starter · #20 ·
Nice job. I'm wondering if I'll hit a wall sooner due to my QPI being significantly higher. I'm going for actual usable system speed, I'm not trying to grow my e-peen or impress anyone with big CPU clock numbers. If I can't get the CPU to 3.6 on stock vcore with 3.2 on the QPI, I won't be disappointed. I'm hoping the system will be stable with the CPU and QPI at 1:1 at 3.5ghz. If I can get it stable in that config I might even just call it a day.

I did notice something odd though. My BIOS doesn't give me direct control of QPI and DIMM multipliers. Instead, it runs them at max speed based on the BLCK and then gives me about 4 options to downclock them, showing their speeds rather than a multiplier. DIMM is pretty no brainer, the speed I set is the speed I get. However, QPI is a bit odd. I get HALF the speed set in the BIOS. Is this normal? QPI is currently set in the BIOS at 6427mhz, which I'm running at half of now - it's adjustable from 1:1 with CPU downward (with the 1:1 setting actually being displayed as double CPU speed), but for some reason I have to set it to double what I want. Maybe it's simply a glich in the BIOS.

This board is obviously performing well enough, but the BIOS is a bit odd. It's as if ASUS wanted to make the OC experience more intuitive, simple, and even semi-automated (might explain the name change from "extreme tweaker" to "AI tweaker", but I'm not sure if it's actually for the better.
 
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