Haswell Overclock Thread

BriT · 22 Jun 2013 at 22:24

max 77c after prime for an hour, voltage is 1.2v.

spankingtexan · 23 Jun 2013 at 07:46

BriT said:
max 77c after prime for an hour, voltage is 1.2v.

OK, have you tried lower volts? I have a stable 4.4Ghz oc with 1.140V, also not sure if makes a difference but I have disabled the igpu, volts went up to 1.152V before disabling but after stayed at 1.140V suggesting more power draw if not disabled.

max 75c with Aida64

spankingtexan · 23 Jun 2013 at 07:48

Anyone bought an overclocked bundle Haswell yet? Would like to see ocuk bios settings for their overclocks and temps.

stulid · 23 Jun 2013 at 10:54

spankingtexan said:
Anyone bought an overclocked bundle Haswell yet? Would like to see ocuk bios settings for their overclocks and temps.

I reviewed one of the Haswell systems (Titan Scythe) it was oc'd to 4.4Ghz via turbo ratios.

CAPTAINBUMFLUFF · 23 Jun 2013 at 20:27

Managed to get my 4770k stable @ 4.5ghz with 1.208 volts all other settings apart from the cpu voltage and multiplier were left at default.
My motherboard is the Asus Z87 GRYPHON Intel Z87 and I am using the corsair h110 (2 BitFenix Spectre PRO 120mm fans).

I have tried to overclock to 4.6 with the following settings:

CPU Voltage 1.24
vring 1.16
uncore 1.86
Cache Multiplier 40

but it only runs the stress test for 30 minutes before getting a 124 error.

Have you got any suggestions? Also is there any reason why I am getting slightly different temperature reading in the two programs?

wazza300 · 23 Jun 2013 at 20:38

124 is too low cpu voltage from my experience

it used to be too low imc voltage on x58 not sure if it applies to haswell

on sb/ivybridge 124 error is too low cpu v

differing temps could be down to how hard each stress program stresses the cpu?

CAPTAINBUMFLUFF · 23 Jun 2013 at 21:17

Ok might try upping it a bit to 1.25.

I meant the difference in the temperatures between the real temp reading realtemp and AIDA

wazza300 · 23 Jun 2013 at 21:38

Ahh I see,its probably just down to different software,I go off realtemp

faxfan · 24 Jun 2013 at 09:48

Guys (or indeed girls) I'm running a i7 4770k on a Asrock Extreme 6, trying to bump up the voltage but can't seem to push it above 1.080(ish) using the Asrock tuning. Obviously missing a trick.

I'm mainly using the "CPU input voltage (offset)" which gives a variance of +0.400v (standard voltage is 0.888v).

These are CPU-Z readings, the Asrock readings are significantly higher (standard voltage 1.770v, going to a touch over 2.000v - that is the CPU volt reading).

Any ideas / guides?

I'm getting 4.3, crashes at 4.4

Shiari · 24 Jun 2013 at 12:22

faxfan said:
Guys (or indeed girls) I'm running a i7 4770k on a Asrock Extreme 6, trying to bump up the voltage but can't seem to push it above 1.080(ish) using the Asrock tuning. Obviously missing a trick.

Dump Asrock A-Tuning, it's pathetic. Get http://www.intel.com/content/www/us...p-boards-software-extreme-tuning-utility.html instead.

I'm mainly using the "CPU input voltage (offset)" which gives a variance of +0.400v (standard voltage is 0.888v).

These are CPU-Z readings, the Asrock readings are significantly higher (standard voltage 1.770v, going to a touch over 2.000v - that is the CPU volt reading).

Any ideas / guides?

I'm getting 4.3, crashes at 4.4

The CPU input voltage is not the primary means of overclocking. Mine is set at 1.9V (which is the default from the 4.6 OC predefined profile, I presume) and I haven't touched value that at all - I'm not sure if I can or need to. Instead, you need to work with the CPU Voltage Mode and its two related settings.

I've written some on the subject recently over on the ASRock support forums at Tweaktown, one of these posts being http://forums.tweaktown.com/asrock/53205-asrock-z87-extreme6-core-speed-fluctuating.html#post459263 (I should also have mentioned: start with one of the predefined OC profiles) and further in that thread (if you're interested) are my particular settings for my 4.6 OC, http://forums.tweaktown.com/asrock/...eme6-core-speed-fluctuating-2.html#post459321

Also, please let us know what the batch number of the CPU is.

faxfan · 24 Jun 2013 at 18:15

Shiari said:
Dump Asrock A-Tuning, it's pathetic. Get http://www.intel.com/content/www/us...p-boards-software-extreme-tuning-utility.html instead.

The CPU input voltage is not the primary means of overclocking. Mine is set at 1.9V (which is the default from the 4.6 OC predefined profile, I presume) and I haven't touched value that at all - I'm not sure if I can or need to. Instead, you need to work with the CPU Voltage Mode and its two related settings.

I've written some on the subject recently over on the ASRock support forums at Tweaktown, one of these posts being http://forums.tweaktown.com/asrock/53205-asrock-z87-extreme6-core-speed-fluctuating.html#post459263 (I should also have mentioned: start with one of the predefined OC profiles) and further in that thread (if you're interested) are my particular settings for my 4.6 OC, http://forums.tweaktown.com/asrock/...eme6-core-speed-fluctuating-2.html#post459321

Also, please let us know what the batch number of the CPU is.

Top man! worked a treat, just used the presets - now at 4.7 @ 1.32v (according the intel tuner, CPU-Z says 4.6 as does the BIOS?!?) at a steady 42c (have ordered a new cooler, running an old H50).

How do I tell the batch number of the CPU?

BriT · 24 Jun 2013 at 18:39

spankingtexan said:
OK, have you tried lower volts? I have a stable 4.4Ghz oc with 1.140V, also not sure if makes a difference but I have disabled the igpu, volts went up to 1.152V before disabling but after stayed at 1.140V suggesting more power draw if not disabled.

max 75c with Aida64

Thats great but i want to clock higher, will water cooling make the temps drop a fair bit? All other settings are at default. Also noticed my bus speed is 99.77 and not 100.

Shiari · 24 Jun 2013 at 19:58

faxfan said:
Top man! worked a treat, just used the presets - now at 4.7 @ 1.32v (according the intel tuner, CPU-Z says 4.6 as does the BIOS?!?) at a steady 42c (have ordered a new cooler, running an old H50).

How do I tell the batch number of the CPU?

If the multiplier is reported as 46 then it'll be 4.6. I've seen XTU get the clock wrong a few times, no idea why.

The batch number of your CPU is on the box it came in, e.g. L310.

ManiacMatt · 24 Jun 2013 at 22:31

Guys,

Bought the quasar bundle 265i (4770k, k2 & asus hero mobo) from overclockers, 4.6ghz

Just tried my first bd rebuilder encode and the highest temp on one of the cores was 93 degrees. Win 8 bluescreened.

If I dial it back to say 4500mhz do u think it would be any better? What temps for a video encode should I be looking at max?

Temps are taken from aida 64 on a g19 keyboard app.

Thanks for your help

Shiari · 24 Jun 2013 at 22:52

ManiacMatt said:
Just tried my first bd rebuilder encode and the highest temp on one of the cores was 93 degrees. Win 8 bluescreened.

If I dial it back to say 4500mhz do u think it would be any better? What temps for a video encode should I be looking at max?

93 degrees is too much ... you should be looking at a max of around 80, 85 degrees tops under a real life high load (stresstests might push it a tad further).

Unless you can bring the voltages down further while remaining stable (the bsod is not promising in that area) you may have to dial it back a little. You'll also want to take the voltage down to contain the temperatures though.

james_2k · 26 Jun 2013 at 09:41

93 is not too much if you only get it in artifical tests.

anyway, 4.75ghz at 1.357v. very warm under dual radiator water cooling, probably will look at delidding when i get the courage. normal use it doesnt go over 60 though.

Nelly · 26 Jun 2013 at 15:34

Taken from another forum...

Just be careful about some reviews out there. A lot of them are using ES. Nothing wrong with that but some of the ES can do a lot higher Overclocks (stable and bootable) with a lot less voltage than retail. Mileage will vary a lot depending on what cooling method and if your retail CPU is a duffer. The motherboard isn't the limitation in this case. Don't go thinking I'll buy a £200+ motherboard for 4.6+ Overclocks as some of the cheaper ones I've tested do exactly the same. If you can keep CPU temps under 80C and not breach any higher than 1.35v (1.3v ideally), well done. I don't think it's worth hitting 1.4v even on custom water.

You may have noticed the other day we had some OEM speed-tested CPUs for sale. Whats interesting, these Haswell chip vary massively more so than other generations we've tested. Even though they were all from the same batch, to boot into the Windows desktop at 5GHz for example, a few can do so at 1.25v (like some ES CPUs I and reviewers have), others need 1.4-1.45v or higher.

Those of you who are speed binning yourself to get decent chips to OC stable 4.6-4.8 with decent cooling & temps, look for those chips than can boot into Windows at 5GHz with 1.25-1.3v.

Unfortunately, most are dogs. By that I mean 4.2-4.5 is probably going to be the max for most of you no matter what cooling method or motherboard. Lucky ones will hit 4.6. Anything 4.7 and over, count yourselves very lucky with your chip. Out of 60 tested, I found around 45 to be poor clockers. The others we're around 4.6-4.7. Very VERY few could do 4.8. The i7's are a flipping nightmare to get stable with high clocks as the hyper-threading rapes the temps when using OCCT 4.4.0 with AVX enabled on all logical cores. As some review site have claimed. 90-100C+ is true.

Is it worth it? Overclockers, yes. Gamers, not so much. Mr Joe Bloggs, no.

GodAtum · 26 Jun 2013 at 17:14

Can I pay extra to get engineering samples?

hominid · 26 Jun 2013 at 17:30

I've just bought a 4770k and Asus Z87-A motherboard and I must say this is the flakiest (is that even a word) system I have ever put together...

To say I'm not happy with it is an understatement. I've not even began to delve into the overclocking side as this thing isn't even stable at stock. Applications/games just disappear when using them, until the system blue screens...

I'm seriously thinking about DSR'ing this and getting a 3770K and Z77 motherboard as this system has given me lots of issues in the last 2 days that I've had it - it' doesn't boad well for the machine in the long run.

I had to flash the bios to get it to recognise my PCI ASUS Xonar Sound card, which is kind of ironic..

Not happy at all

Skynet5 · 26 Jun 2013 at 18:14

Installed mobo drivers?

If so, and you're confident you have done everything right then yes, DSR and get Ivy, SB-E or wait for IB-E.

Seems like a flop this platform for those that like to have room to ticker. I don't have the platform, this is just from what I'm reading.