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[Official] Delidded Club / Guide - Page 1391

post #13901 of 33576
Stress-test_002 no BCLK overclock has begun

1. Test trials continue on my render rig using the Ivy Bridge validated AIDA64 System Stability Test
2. Fans will be set 30-60 [40%power ate 30* scaling to reach full 100% fan power at 60*
3. MOW techniques will not be implimented (MOW = Minnesota Open Window)
4. The Case will remain stationary with both side panels off
5. the OC settings have been changed in BIOS to:
senerio B. Core speed 4900 Mz x49.0 , Bus speed 100 MHz Core Voltage 1.464 Offset Enabled

pre-test
1. cinebench .................pass 9.78 (down from senerio A 9.90)
2. intel burn test................ success

Here's what I've learned from member posting concerning raising the BCLK
1. 100.1- 104.9 is a moderately raised BCLK and over 105 is more extreme dangerous [DEPENDING ON THE TEMP CONDITIONS AND COMPONENTS as with all OCs]
2. It is a viable option for benchmarking and short tests but should be avoided for Long tests because it is less stable.
Quote:
Totally Dubbed
As for the BCLK thing - no one I know uses over 100 for IB. Using 350 FSB is a thing of the past. People can use over 100 to around 110 if they want to for short term benchmarking and/or can use it in the long run, but for simplicity of numbers and a more stable OC, people just use 100. As you must remember the BCLK adjusts RAM, CPU and most probably PCI-e speeds. Back in the day, you had options for all three, now you only have 1 option
Quote:
Justanoldman
You couldn't pay me to oc with AI Suite or using BCLK on Ivy.
Quote:
stickg1
I'd use BCLK for benching or HWBot but not for doing something where long term stability is paramount. It effects too many different clock rates in your system. It is also notorious for corrupting your OS if you push it too far. I don't particularly like using it because I use my PC primarily for gaming and don't want to go through the hassle of reinstalling everything for a few tens of MHz. If I was a bencher with a stripped OS I would mess with it more. 100-105 BCLK is fine, anything more and you're asking for trouble.

The test is currently a the 1 hour mark for the BCLK @ 100 x 49 right now.



stay tuned for more updates! stay tuned! get it? Ha! I kill me.

Snorkle.gif Official Corsair Hydro Series Club Snorkle.gif
5.5GHz Ivy 3770K
devil.gifIF IT AINT BROKE THEN YOU DIDN'T OVERCLOCK IT ENOUGHTdevil.gif
just kidding
   
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post #13902 of 33576
Quote:
Originally Posted by TonicX View Post

Stress-test_002 no BCLK overclock has begun

1. Test trials continue on my render rig using the Ivy Bridge validated AIDA64 System Stability Test
2. Fans will be set 30-60 [40%power ate 30* scaling to reach full 100% fan power at 60*
3. MOW techniques will not be implimented (MOW = Minnesota Open Window)
4. The Case will remain stationary with both side panels off
5. the OC settings have been changed in BIOS to:
senerio B. Core speed 4900 Mz x49.0 , Bus speed 100 MHz Core Voltage 1.464 Offset Enabled

pre-test
1. cinebench .................pass 9.78 (down from senerio A 9.90)
2. intel burn test................ success

Here's what I've learned from member posting concerning raising the BCLK
1. 100.1- 104.9 is a moderately raised BCLK and over 105 is more extreme dangerous [DEPENDING ON THE TEMP CONDITIONS AND COMPONENTS as with all OCs]
2. It is a viable option for benchmarking and short tests but should be avoided for Long tests because it is less stable.


The test is currently a the 1 hour mark for the BCLK @ 100 x 49 right now.



stay tuned for more updates! stay tuned! get it? Ha! I kill me.

Snorkle.gif Official Corsair Hydro Series Club Snorkle.gif
5.5GHz Ivy 3770K
devil.gifIF IT AINT BROKE THEN YOU DIDN'T OVERCLOCK IT ENOUGHTdevil.gif
just kidding

Thanks for benching +rep to you dude!

Indeed yeah, BCLK gives more "bandwidth" as such - and thus gets better performance. Just be warned in going too high, as you might blow your PCI-e slot equipment (like GPU)
post #13903 of 33576
Quote:
Originally Posted by Totally Dubbed View Post

Thanks for benching +rep to you dude!

Indeed yeah, BCLK gives more "bandwidth" as such - and thus gets better performance. Just be warned in going too high, as you might blow your PCI-e slot equipment (like GPU)

Even running 110 or more on ivy, & much more than that with 1366 rigs, I've never seen hardware damaged with overclocking the pci-e. The worst I've done is corrupted an OS, it was with one SSD that didn't like over 110 bclk, Another identical ssd was fine with more, & all my HDDs have been fine with more. Never saw any issues with other hardware besides the one ssd.

If there is sensitive data on the drive, it isn't a bad idea to be careful with bclk in case of corruption. Other than that I don't see any harm.
    
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post #13904 of 33576
Friend ran his i3 (Sandy) with 107.2MHz BCLK without any issues for nearly 2 years before he upgraded last christmas. The CPU is still in use on another PC without any issues.
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post #13905 of 33576
Quote:
Originally Posted by Valgaur View Post

Gimme! Gimme now! tongue.gif
What 7970s though? Id be getting either 3 or 4 of them for my loop. Plus to bench them.

Reference cards are easier to control using soft, most of them will allow you to. BUT vrm might be weaker so I'd suggest either Asus DcuII TOP or Gigabyte Windforce 3x OC (but not all of those are voltage unlocked, only older version...otherwise you'll have to hardmod them apart from the OVP/OCP mods you'll have to do anyway to go over 20% power target)
Lightning is best for ln2 really.
Quote:
Originally Posted by Hokies83 View Post

Even the lighting gets out performed by 7950s....

Nice wink.gif
But not true man...Look at the scoreboard, no 7950 in that ranking for a while scrolling down...
Quote:
Originally Posted by FtW 420 View Post

Even running 110 or more on ivy, & much more than that with 1366 rigs, I've never seen hardware damaged with overclocking the pci-e. The worst I've done is corrupted an OS, it was with one SSD that didn't like over 110 bclk, Another identical ssd was fine with more, & all my HDDs have been fine with more. Never saw any issues with other hardware besides the one ssd.

If there is sensitive data on the drive, it isn't a bad idea to be careful with bclk in case of corruption. Other than that I don't see any harm.

Quote:
Originally Posted by Stige View Post

Friend ran his i3 (Sandy) with 107.2MHz BCLK without any issues for nearly 2 years before he upgraded last christmas. The CPU is still in use on another PC without any issues.

True dat...ssd data corruption is the only concern I'd have and instability for 24/7 use. For benching, bclk all the way thumb.gif
post #13906 of 33576
Quote:
Originally Posted by FtW 420 View Post

Even running 110 or more on ivy, & much more than that with 1366 rigs, I've never seen hardware damaged with overclocking the pci-e. The worst I've done is corrupted an OS, it was with one SSD that didn't like over 110 bclk, Another identical ssd was fine with more, & all my HDDs have been fine with more. Never saw any issues with other hardware besides the one ssd.

If there is sensitive data on the drive, it isn't a bad idea to be careful with bclk in case of corruption. Other than that I don't see any harm.

But isn't BCLK OC'ing the PCI-e slot speeds too? Thus meaning you get better GPU benches, but with too much BCLK - you could blow it? That's my understanding of it.
post #13907 of 33576
Quote:
Originally Posted by lilchronic View Post

im bout to get another 670 FTW next week PAY DAY biggrin.gif

...until then, anticipation is half the fun smile.gif :

Intel(R) IPP JPEG encoder 7.0.1041 - Jul 19 2011;
post #13908 of 33576
Quote:
Originally Posted by Littlejoe View Post

I did it, was easy too. Won't be able to join the club because I didn't do the before temp test, but that's okay. I know I did it. Now if my CLP would just get here. This is a spare cpu (I5 3750) as I didn't like it's oc. Would only get to 4.3 stable so I rolled the dice again.

One question, can I clean the glue with ArctiClean?

Thanks for the guide!

OCN name: Littlejoe
CPU: I5-3750
on die-TIM: CLPro
ihs-TIM: AS-5
Mhz gained:100
OC after delid:4.42
Temp drops:Not sure. Didn't test it before I took it out. Compared to my good chip. It looks like 14c with more voltage then the other chip
CPU-Z validation of max OC:http://valid.canardpc.com/2730679

Can't wait to get my other chip done and back in. It can do 4.5 @1.232v
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post #13909 of 33576
Quote:
Originally Posted by Joa3d43 View Post

...there are different approaches you can use, it all works. I tend to set the multiplier manually but lower (say 45) in the bios and the voltage on 'auto', then boot up - with XTU automatically loading the last good profile (say 52).

By setting a lower multiplier on auto-v in the bios, I believe and have seen some evidence to that effect (though nothing iron-clad yet) that with C and sleep states on, your chip will idle or be on partial load at lower voltages...even at 5.2, I see 0.98v...then again, coming out of sleep and low-load states probably requires more of a quick boost...anyways, back to your question: Both manual and auto settings for v-core in Bios work subsequently with XTU thumb.gif

I opened up XTU and seem to be missing quite a lot of the tweaking options, and can't get the memory options despite ticking the checkbox in the settings. I increased the multiplier to 45 but still had to manually adjust VCore through Gigabyte Easy Tune 6 to get it stable. Changing the Additional Turbo Voltage setting in XTU didn't impact VCore or stability at all.



I'm now running 4.5GHz @ 1.290V which droops to 1.272V according to CPU-Z under load. It survived 5 minutes of stress testing under XTU and so far 30 minutes of Prime95 custom blend with 90% memory utilisation. I've left it running while I'm at work so will have 12 hours by this evening. I did notice a couple of WHEA errors in the event log during the stress testing so far. Do I need to be worried about these?
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post #13910 of 33576
Quote:
Originally Posted by ivanlabrie View Post

Reference cards are easier to control using soft, most of them will allow you to. BUT vrm might be weaker so I'd suggest either Asus DcuII TOP or Gigabyte Windforce 3x OC (but not all of those are voltage unlocked, only older version...otherwise you'll have to hardmod them apart from the OVP/OCP mods you'll have to do anyway to go over 20% power target)
Lightning is best for ln2 really.
Nice wink.gif
But not true man...Look at the scoreboard, no 7950 in that ranking for a while scrolling down...

True dat...ssd data corruption is the only concern I'd have and instability for 24/7 use. For benching, bclk all the way thumb.gif

...in fact, contrary to what some folks think and publish, some mobos come from the factory with a slightly higher clock than 100.00 already smile.gif - note the word 'slightly' (more on that later). My own work / productivity systems are tested up to 106 (the personal cut-off I use with the usual equipment I run)...benching a bit higher...but again, it all depends on your a.) starting position per mobo and b.) very specifically the type of mobo / bios, memory and PCIe GPUs you are running - no one-size-fits-all answer.
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