3570k @ 4.5Ghz help and advice!

C6ckneyGeezer

C6ckneyGeezer

C6ckneyGeezer

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Hi guys spec is in my sig. I currently have my 3570k at 4.5Ghz stable after a few hours of several P95 testing, temps hit a max of 77*c under 100% load.

I have all the settings in the bios set to auto, turbo boost is off and multiplier set at x45. All energy saving/down clocking idle settings still auto/active. Volts get reordered at 1.308 under 100% load in CPUZ and HWMonitor.

Now it seems if I use the offset voltage to decrease the voltage by 0.010 I get BSOD. If I up the multi to 46 I also get the BSOD.

Now im guessing unless I start going into more advanced manual settings etc then this is the sweet spot for my chip? Less voltage = BSOD, more multi and voltage = BSOD.

Any help or comments much appreciated.

CPUZ Validation - http://valid.canardpc.com/2sbtp7
 
Thanks for the reply. Last time I touched overclocking a CPU was when I had my old P4 3.6Ghz @ 3.8Ghz on a mild overclock lol.

To be fair im so happy with 4.5Ghz. My FPS in CS GO was at 160FPS @4Ghz now it's running 250FPS easy. Amazing how much of a boost it's given me!
 
Voltage settings are all on auto at the current state of 4.5Ghz.If I use the offset voltage to lower the voltage it just BSOD's. I didn't want to set the voltage manual as I wanted to keep the power saving features active, or am I wrong?

I also notice that voltage is different in bios and CPUZ. If I set a voltage in the bios im scared it will be too much and fry my chip as the reading are not matching.

Edit: Vcore in the bios at idle is 1.212 but next to the vcore setting which is auto it says 1.150.
 
Last edited:
4.5ghz is easy

leave intel turbo on auto

set cpu/pci bclk to 100
set vcore voltage response to fast
pwm phase control to extreme performance
cpu voltage to normal and dvid set to +0.030v
set loadline calibration to medium,if unstable set to high

then stress cpu and make a note of how much cpu v is being used
 
A lot of chips have this characteristic as far as I can tell: depends whether you got a poor, mediocre or good overclocker- the silicon lottery, as it's known...
With Sandy Bridge in particular, 4.5/4.6GHz seems to be the sweet spot, with any more speed requiring quite a bump in voltage for stability. Some chips (like my 2500K) almost hit a brick wall at certain speeds- for some this wall is about mid-fours GHz, some chips will hit 5GHz, and the odd stinker will top out about 4.2GHz.
TBH, as long as your vcore stays below the recommended limits, by all means allow your chip a bit more juice. You can safely go to about 1.4v* if needed, and you're well within that right now.

*well it was 1.42 for Sandy, don't think it's too different for Ivy...
 
Thanks for the replies guys. Still running solid at 4.5Ghz with 1.308v. Might have a bit more of a play later. Temps hit about 60*c after a few hours on gaming.

Edit:

akoska07 said:
Hi!

Your cpu made in Malay or Costa Rica ?
BATCH# Number ?

When i do overclock i'm always using fix voltage.

My 3570K (Costa Rica) in Biostar TZ77XE4 motherboard can work [email protected] and [email protected].
Click to expand...

Batch number is 3338B716 and it's a Costa Rica chip
 
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C6ckneyGeezer said:
Thanks for the replies guys. Still running solid at 4.5Ghz with 1.308v. Might have a bit more of a play later. Temps hit about 60*c after a few hours on gaming.

Edit:



Batch number is 3338B716 and it's a Costa Rica chip
Click to expand...

Costa Rica cpus should work around [email protected].

Use fix vcore voltage.
45x100
Use XMP profile for the memorys
and stock voltage for the memorys
VCore Load Line Calibration - Medium or Higher
put more some voltage for VTT or/and PLL.
play with two voltage
 
Seems I just have a average chip or even a "bad" chip then. Any voltage lower than 1.308 it become unstable.

So I guess 4.5Ghz @ 1.308 is my limit. Any more OC and it needs more volts which I don't want to give it for a 24/7 OC.

Just confirm that 4.5Ghz @ 1.308v and a max temp of 77* after a few hours of Prime is all ok 24/7?

Thanks for all the posts guys!
 
Yup, 1.308v and 77C is fine. Prime will stress your chip more than any daily use, you'd never hit that while gaming, for example.
I couldn't see a problem going 24/7 with that. Assuming you have turbo re-enabled and speedstep enabled, the chip will throttle down anyway unless the power is needed.
Try fiddling with LLC settings- you might be able to knock a smidgeon off the vcore with high LLC and perhaps PLL overvolt enabled (rather than Auto). No guarantees, but perhaps worth a try...!
 
dougal1331 said:
Yup, 1.308v and 77C is fine. Prime will stress your chip more than any daily use, you'd never hit that while gaming, for example.
I couldn't see a problem going 24/7 with that. Assuming you have turbo re-enabled and speedstep enabled, the chip will throttle down anyway unless the power is needed.
Try fiddling with LLC settings- you might be able to knock a smidgeon off the vcore with high LLC and perhaps PLL overvolt enabled (rather than Auto). No guarantees, but perhaps worth a try...!
Click to expand...

Thanks, will have a little play.

Thanks for all the help guys! :D
 
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