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post #4291 of 10699
Quote:
Originally Posted by jdip View Post
In CPU-Z my bus speed is 99.8 MHz and not 100. So at a x45 multiplier I only get 4490 MHz and not 4500 MHz. Is it normal that the bus speed is a bit off 100?
Quote:
Originally Posted by munaim1 View Post
This is most likely due to spread spectrum, disable that option in the BIOS and the BUS speed should lock at 100.
I don't know what board jdip has, as at the time of his post, there was no system information listed, but there is an issue currently with the most recent bios versions for the MSI P67 and Z68 boards, they all read 99.8 bus speed in CPUZ. The workaround at the MSI forums is to set the base frequency to 10010 which works out to a 100.2 bus speed in CPUZ.
Unfortunately, disabling spread spectrum doesn't fix this.
Edit:
It doesn't fix this on my board, with the current bios I have. This could be due the settings I'm using such as having all EIST, C1E, EUP 2013, C-State, etc. disabled. The MSI forum has other users of my board reporting this with any recent bios. But I'm glad it worked for jdip.
Edited by DerComissar - 10/1/11 at 7:50am
    
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post #4292 of 10699
Would it matter if you left it at Auto? I think mine is at auto and I am getting a 4800.4-8mhz OC. Never does the 4800mhz change though. Is it req. that it's changed to Manual so it reads 100?
post #4293 of 10699
Quote:
Originally Posted by munaim1 View Post
This is most likely due to spread spectrum, disable that option in the BIOS and the BUS speed should lock at 100.

Hope that helps
Thank you! It worked.

Quote:
Originally Posted by DerComissar View Post
I don't know what board jdip has, as at the time of his post, there was no system information listed, but there is an issue currently with the most recent bios versions for the MSI P67 and Z68 boards, they all read 99.8 bus speed in CPUZ. The workaround at the MSI forums is to set the base frequency to 10010 which works out to a 100.2 bus speed in CPUZ.
Unfortunately, disabling spread spectrum doesn't fix this.
Yes I actually do have an MSI P67 board (P67A-G43). I just disabled spread spectrum and it's at 100 now. Thanks for the input though.

Quote:
Originally Posted by SightUp View Post
Would it matter if you left it at Auto? I think mine is at auto and I am getting a 4800.4-8mhz OC. Never does the 4800mhz change though. Is it req. that it's changed to Manual so it reads 100?
It probably isn't important, but I wanted it at 100 to appease my OCD
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post #4294 of 10699
Ended up settling for 4.8 ghz, 1.36 vcore, temps hover ~60 after hour orthos, 20 burn intel burn steps or w/e.

Sticking with low stress. For me more than the CPU

OCing takes it outa me. Poor comp , poor eyes seeing all those blue screens, poor harddrives being constantly erased, poor windows cd for install all those times, and poor liquid cooling for being used,,, then abused.

Maybe some day in the near future ill take another crack at her. I got temps and v to spare
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post #4295 of 10699
It makes me mad seeing people stop at such a low voltage and are already at 4.8Ghz. There is so much more headroom.
post #4296 of 10699
Thread Starter 
Quote:
Originally Posted by no_safe_HAVEN View Post
Hey munaim1, Got an update. Went from 4.7 to 4.9GHz!
Thanks bud, appreciate it. Updated your submission. Your old screenshot is still available so that you can make comparisons between your own overclocks, a bit like your own database.


OLD Screenshot:
no_safe_HAVEN / 4700.2mhz / 1.344v / 12hrs / 68-74-72-72 / WATER - Cosair H70 / 2500k / 8GB 1600mhz
http://www.overclock.net/14862294-post3619.html



NEW screenshot:
no_safe_HAVEN / 4900.2mhz/ 1.384v / 12hrs / 70-77-75-74 / WATER - Cosair H70 / 2500k / 8GB 1600mhz
http://www.overclock.net/15132723-post4290.html



Good job, temps didn't go that high (+3c max temp on core) and you managed to keep the voltage under 1.4v and gain another 200mhz, job well done!!!!!!
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post #4297 of 10699
Quote:
Originally Posted by jdip View Post
Thank you! It worked.
Yes I actually do have an MSI P67 board (P67A-G43). I just disabled spread spectrum and it's at 100 now. Thanks for the input though.
It probably isn't important, but I wanted it at 100 to appease my OCD
Lol!
I'm glad that disabling spread spectrum worked for you.
Mine is always at 100.2, but that irritates me less than 98.2 did!

Quote:
Originally Posted by Zeromark View Post
Ended up settling for 4.8 ghz, 1.36 vcore, temps hover ~60 after hour orthos, 20 burn intel burn steps or w/e.

Sticking with low stress. For me more than the CPU

OCing takes it outa me. Poor comp , poor eyes seeing all those blue screens, poor harddrives being constantly erased, poor windows cd for install all those times, and poor liquid cooling for being used,,, then abused.

Maybe some day in the near future ill take another crack at her. I got temps and v to spare
That's a nice low vcore for your cpu, now that all the dirty work is done, 4.8GHz is a good 24/7 overclock.

Quote:
Originally Posted by SightUp View Post
It makes me mad seeing people stop at such a low voltage and are already at 4.8Ghz. There is so much more headroom.
For those that are lucky enough to be able to run 4.8GHz at a relatively low vcore.
I can run mine at 4.8 in windows and gaming at 1.400v. with no issues, but a 2-hour P95 Blend test takes 1.420v. to avoid any crashing. 5000MHz is much more voltage-hungry, 1.4500v. will run it in windows, but it crashes/blue-screens instantly in P95 at a 50x multi. at that voltage.
Edited by DerComissar - 10/1/11 at 8:21am
    
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post #4298 of 10699
Quote:
Originally Posted by FoLmEr View Post
Yup I can attest to the C3-C6 states lowering throughput of SSDs.
(...)
Other sysconfigs may yield different results, so you should test it yourself on your system altho generally I ALWAYS disable C-states while overclocking since I just don't see the need for them.
Now this is INTERESTING to say the least!
I find my writes to be a little low (crucial m4 128gb, tested with Anvil pro), about 200MB/s.
I definitely try with C3 and C6 disabled, even if i'm using fixed voltage atm. I need to check this.
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post #4299 of 10699
I'm really frustrated with trying to overclock my CPU. I've been at it for weeks now and I still keep failing my Prime95 stress test at 12+ hours (system freeze/blue screens/random reboots). I've read the front page guides and everything. I've gone as high as 1.36 for my Vcore for a 4.5GHz overclock.

I've tried a whole array of voltages, changing settings, testing my RAM to see if it's to blame, etc to no avail. I took some screen shots, could some please look over them and give me some advice.








Edited by jdip - 10/1/11 at 11:48am
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post #4300 of 10699
Change the timing mode to manual.

Disable PPL OV and the two settings under it.

You need to change VDroop control to high? I don't know that motherboards BIOS well.

For the time being set your vCore to 1.4v. This won't hurt your CPU and will give you a good starting point and you can just lower and lower the voltage as it passes test.

Set your DRAM Voltage to what it should be.

I hope this helps!
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