Overclocking into the Haswell

Swizz · 4 Jul 2013 at 23:57

Yikes! that didn't turn out all to good. As soon, as I went in-to Bios to punch in 4.6Ghz at 1.20V and "Save to Exit" It black-screened and refused to boot into Windows. 2hrs later I came back to power up, with no luck. With trying for another 45 minutes I received a message stating "The main Bios is corrupted. The system will be recovered from the backup Bios" So, all-in-all..I think I can safely say that 1.20V is a no, no for me. Oh well. I guess I'm back to feeding the monster. 4.4Ghz @ 1.318v it is then

(EDIT) I say Monster..It purrs like a kitten once it's idel at 32.33.34.28. According to RealTemp And once the cogs turns with playing three games so far. Farcry 3. Grid 2 and Company of Heroes 2. It has never escalated past 62c. Just wish I could knock down a few volts. I guess I can be greatful' with 4.4Ghz from a Q5550 2.8Ghz lol to which I'm still using BTW for other little things

Swizz · 5 Jul 2013 at 00:00

Duff-Man said:
As did I... Unfortunately I got a "dog of dogs" chip. 4.2Ghz is the most I can do stable, and I need 1.29v just for that.

Luckily I have a new chip incoming (I won the OcUK super pi 32m contest ), so hopefully this one is a little more capable! I'll find out soon I guess.

Congratulations dude!..Keep us all updated on how well you push the chip

Shiari · 5 Jul 2013 at 00:15

Swizz said:
Yikes! that didn't turn out all to good. As soon, as I went in-to Bios to punch in 4.6Ghz at 1.20V and "Save to Exit" It black-screened and refused to boot into Windows. 2hrs later I came back to power up, with no luck. With trying for another 45 minutes I received a message stating "The main Bios is corrupted. The system will be recovered from the backup Bios" So, all-in-all..I think I can safely say that 1.20V is a no, no for me. Oh well. I guess I'm back to feeding the monster. 4.4Ghz @ 1.318v it is then

You need to make much smaller jumps ... try lowering in steps of 0.02V or so. 4.6 at 1.20V would make for a very very good chip.

killoc · 5 Jul 2013 at 10:48

james_2k said:
did you try the method of asus to determine how 'good' your cpu is?

de that I followed,
Now, I’ll share a secret imparted by the folks at ASUS who gave several reviewers some tips on overclocking the retail stepping Haswell chips: Set Vcore to 1.20 V. Set all cores to 46x (which would be a 4.6 GHz overclock), save & reboot. If the system boots past the UEFI and either begins to load or, ideally, makes it into the OS and is stable, you have a 50th percentile or greater chip on the Haswell overclocking-ability bell curve. If it won’t at least boot there and make it into the UEFI, you probably have less than a 50th percentile chip. You can expect chips in the lower 50th percentile to top out in the 4.4-4.5 GHz range at 1.25 V.

Click to expand...

Same guide I use for my overclocking. Manage to lower voltage for 4.6Ghz at 1.143v in bios and reading from cpu-z (ver.1.65.0) 1.52v manual overclocking. Steady for 2 weeks normal use.

Can boot at 4.8ghz/1.20v and bench aida64 for 15mins before I have to shut it down cause it was in 90c+. Trying to boot 5.0Ghz but havent manage with 1.26v, Might be limited with aircooling. Try later this weekend if I got time to boot 5.0ghz under 1.30v.

james_2k · 5 Jul 2013 at 11:26

what is your uncore set at?

killoc · 5 Jul 2013 at 19:29

james_2k said:
what is your uncore set at?

Uncore min/max cpu cache ratio? I left them on auto, is it a bad thing? Coming from [email protected], everything is so new to me on overclocking, So I only spend a few hours every weekend reading and playin about with it. Last week overclock the ram.
4.6ghz/1.143v/2133mhz/11-12-12-35 1T/1.50v
I know timing sux and didnt see any big improvement on FF14 benchmark so set it back to 1600mhz/c9/1.35v.

while waiting for MVIG to be release, I come across a post where ppl was comparing batch number and overclocking, its not 100% and shouldnt taken for granted but was menton L311B*** is a good chip with last 3 numbers around 400-500. I got L311B515 malaysia and it overclock well.

james_2k · 5 Jul 2013 at 19:56

you should have your uncore within 3 multis of your core speed really.

killoc · 5 Jul 2013 at 20:04

james_2k said:
you should have your uncore within 3 multis of your core speed really.

Will do over the weekend, need to read up on it. Only on step 2/3 from the guide I'm using.

So how would you set ur 3 multis on a 4.6ghz?

james_2k · 5 Jul 2013 at 20:05

well i would set it for 4.8 for a start

but in seriousness,

46x core sync all
43 x uncore.

after you are sure you are stable, then ram as required.

killoc · 5 Jul 2013 at 20:53

james_2k said:
well i would set it for 4.8 for a start

but in seriousness,

46x core sync all
43 x uncore.

after you are sure you are stable, then ram as required.

Thanks, you been a star with been helping me out this week.

Swizz · 5 Jul 2013 at 23:36

Thanks guys to whom'ever helped me along. This new rig is friggen awesome

james_2k · 5 Jul 2013 at 23:37