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Complete Overclocking Guide: Sandy Bridge & Ivy Bridge | *ASRock Edition* - Page 11

Poll Results: Was this guide helpful?

Poll expired: Oct 17, 2012  
  • 80% (237)
    Yes (and I DO have an ASRock motherboard).
  • 15% (45)
    Yes (but I DO NOT have an ASRock motherboard).
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post #101 of 9561
Quote:
Originally Posted by tootercomputer View Post

Thanks for the response. Yes these chips do seem to be awesome.
But I'm puzzled. I'm running OCCT ver. 4.1, and I simply bumped the multiplier to40 (and I have my memory set to 1600), and did not touch anything else in the OC portion of the bios. Per OCCT, my vcore is 1.26. Is not the set vcore 1.10? If so, how did my vcore get up to 1.26? BTW, it's running in the low 50s. Thanks.
Update: I lowered the mult to the default of 33, and the vcore dropped to 1.17 in the bios. When I bumped it back up to 40 or 42, the vcore went back up to 1.26 to 1.28. So is there a setting that disengaged the vcore from the multiplier? They seem to be linked. Am I'm seeing this both in the bios and via OCCT.
marty

if you want the board to run 1.10 vcore, then manually input it

btw, i don't think its a good idea to run an overclock with that low of a vcore...it might cause stability issue...besides, raising it to 1.25 to 1.30 is the norm for a small overclock...it won't hurt your temps either
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post #102 of 9561
Quote:
Originally Posted by steven88 View Post

if you want the board to run 1.10 vcore, then manually input it
btw, i don't think its a good idea to run an overclock with that low of a vcore...it might cause stability issue...besides, raising it to 1.25 to 1.30 is the norm for a small overclock...it won't hurt your temps either

Okay, I could manually put it in. I guess my question, though, is that, when upping the multiplier, it also appears to automatically bump up the vcore, That's fine, but when I read of people simply upping their multiplier and getting 4+ GHz, I thought that was with the default vcore. I guess not.

Anyway, right now, I have my mult at 4.5, with a vcore reading of 1.27. I have my vengeance or dominator corsair memory (I can't recall which, I bought this a few years ago, it sat on the shelf for a while, but it's good memory), I have it running at 1600 at 8-8-8-24. I've run prime95 with no errors, now I'm running OCCT again.

I bumped the mult up to 47 and the system crashed. I probably can up the voltage on some settings if so inclined (PLL, something like that), but I suspect 4.5 is my sweet spot, and that's fine. I'm still playing around with the bios, learning the settings. Very different animal this UEFI, e.g., simply setting boot drive order is different, a bit clumsy actually.

All in all, pleased with the mobo, pleased with the chip. It's amazing. What an OC. I"ve never OCed more than 1 GHz without really having to tweak lots of settings. Here I'm OCing 1.2GHz with a minimum of fuss. What an impressive chip.

Thanks for the input. I am open to suggestions on further tweaks to OC this., Perhaps there is a higher sweet spot without pushing voltage too much. This will become a family system, and so a stable OC is necessary, one that easily reboots with windows updates, the day-to-day kinds of use that require occasional reboots, and to be able to do so without problems.

marty
post #103 of 9561
Hi all. One other quick question. Am I reading the Intel specs correctly, that the top temp for this chip is 72C? Here's the link:

post #104 of 9561
Hi all. Here's a link to the Intel specs for the i5 SB. Am I reading this correctly, that the top temp is 72C? Thanks.

Hmm, I'm trying to put a URL line here, but it's not reading it. What's the deal here, I click on the URL icon above in the edit screen, I insert the link, I click OK, I can see it in my edit screen here, bracketed by URL in parens, but when I hit Submit, the final message is lacking the link. I don't get it .


Edited by tootercomputer - 3/17/12 at 8:07am
post #105 of 9561
i think the thermal throttling will kick in at 99C, so 72C is definitely not the max. I personally try to stay under 80.

You probably just need to raise your vcore to go above 4.5, I use 1.38 or so for 4.7, ymmv
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post #106 of 9561
Quote:
Originally Posted by mtbiker033 View Post

i think the thermal throttling will kick in at 99C, so 72C is definitely not the max. I personally try to stay under 80.
You probably just need to raise your vcore to go above 4.5, I use 1.38 or so for 4.7, ymmv

Okay, then I'm good. At 4.5GHz, I'm running in the mid-50s with vcore auto-adjusting to 1.28. So it looks like I may have some headroom with which to play and possibly find a higher sweet spot. Thanks.

marty
post #107 of 9561
Hi all. Okay, questions about the OC guide. Initially, I simply bumped the multiplier, did not tweak anything else in the bios, and was stable at a mult of 45 (now stable at 46). Then I looked closely through the OC guide and thought I would followed all the suggestions such as enabling PLL over-voltage rather that simply bumping up the multiplier. Running at a mult of 45, where I had had it set, I noticed that I was running hotter with those various suggested settings, in my core temps by about 5C hotter core temps (high 50s, low 60s). So I went back to simply bumping up the multiplier, and the core temps temps went back down (mid-50s). I know those temps are not that hot, but that was a 5C bump in core temps with no change in speed.

One other thing I have notice is that while running Prime95 or OCCT, the multiplier drops from 45 to 44, 43, 42. Is there a way to keep the multiplier stable? The cpu is under full load while running these tests, so I'm not sure why this occurs. Also, this happens even when turning off Intel Speed Step. Perhaps this drop in the mult is simply an artifact of some features of Prime95 and OCCT, a period of lower stress?

Anyway, open to any suggestions, insights. Still loving this board and chip so far, no disappointments whatsoever.

Thanks.

Quick update. I tried setting the vcore to a constant 1.32 and I got my first blue screen after Windows froze. That was interesting. biggrin.gif

marty
Edited by tootercomputer - 3/17/12 at 8:38pm
post #108 of 9561
Hi, Im curious about this. Why are some running the CPU overclocked in fixed mode but still have speed step and C1E enabled? Wouldn't fixed mode have speedstep, C1E, C3, & C6 disabled but looking at the guide below its confusing. More explanation on how this works would be great. Thanks

Quote:
So heres your 2 options:

Offset Mode: Your CPU will use VERY LITTLE voltage and speed when idling, ANYTIME you idle. (Even browsing can be considered idling.)
Enhanced Halt State (C1E): Enabled
CPU C3 State Support: Disabled
CPU C6 State Support: Disabled
Package C State Support: Disabled
Fixed Mode: Your CPU will run full voltage and speed all the time, even when idling.
Enhanced Halt State (C1E): Enabled
CPU C3 State Support: Enabled
CPU C6 State Support: Enabled
Package C State Support: Auto
Edited by Lucky 23 - 3/18/12 at 11:08am
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post #109 of 9561
Enhanced Halt State (C1E): Enabled
CPU C3 State Support: Disabled
CPU C6 State Support: Disabled
Package C State Support: Disabled

Where are those in the bios? I am not seeing these anywhere. I used to disable these or similar settings on my gigabyte boards. Thanks.

marty
post #110 of 9561
They are under the advanced tab, then click CPU config.
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RAMHard DriveHard DriveCooling
Gskill RipJaws V 16GB 3000mhz Samsung 850 EVO 250GB Seagate Barracuda 2TB EK-Supremacy EVO CPU Water Block 
CoolingCoolingCoolingCooling
EK R9 290X GPU Waterblocks EK-XRES 140 Revo D5 PWM Pump Alphacool NexXxoS 360mm ST30 Alphacool NexXxoS 240mm ST30 
CoolingCoolingOSMonitor
Alphacool NexXxoS 120mm ST30 Cooler Master Jetflo 120mm Fans Windows 10  LG 34UC88 
KeyboardPowerCaseMouse
Quickfire TK red switch Cooler Master V1000 MasterCase Pro 5 CM Storm Havoc 
CPUMotherboardGraphicsGraphics
I5 2500K @ 4.6ghz  ASRock Z68 Extreme 3 Gen 3 ASUS 7870 Ghz Edition ASUS 7870 Ghz Edition 
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Gskill RipJaws X 16GB 1600mhz Seagate 2TB Seagate 320GB ASUS Burner 
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