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Old June 12, 2013, 08:02 AM
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If somebody has both a 3770K and 4770K, would you mind comparing power draw @ 4.5GHz?
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Old June 12, 2013, 09:38 PM
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Retail 4770K: 4.4Ghz@ 1.25v in bios, 1.26v loaded in windows.

10e: Not sure if it has been suggested but I read that using the 125 strap with a lower multi can sometimes help chips that struggle to hit desired speeds...
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Old June 14, 2013, 08:26 AM
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Well, I have to revise the numbers. Even if the CPU was stable @ 4.6Ghz in AIDA, as soon as I started a Prime95 test it would crash within seconds.

After dozens of hours of testing, the best stable clock I could reach was 4.45Ghz at 1.31v. Those results are horrible... If at least I could convince myself that I've got a "bad" chip, but looking at the general overclocking results, this isn't the case. Haswell chips that oc well seem to be very rare, and the engineering samples were obviously cherry picked to a degree we hadn't seen before from Intel.
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Old June 14, 2013, 11:26 AM
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Quote:
Originally Posted by G777 View Post
Retail 4770K: 4.4Ghz@ 1.25v in bios, 1.26v loaded in windows.

10e: Not sure if it has been suggested but I read that using the 125 strap with a lower multi can sometimes help chips that struggle to hit desired speeds...
I've tried that as well, and I seemed to get a bit more stability at 4.375 ghz (35x125) but I can see that something in my Windows install on this crap-bum OCZ Vertex 2 Extended 120Gb does NOT agree with either Haswell, or the Z87 chipset so I'm going to re-install at stock on another disk.

Looking at power consumption on my Kill-A-Watt I shouldn't be seeing over 180 watts used where my 3770K at 4.9 is in the 160-170 range.

One thing I am sure of: I am officially 100% NOT ever buying another S***force product EVAR again.

The reason I'm sure it's the combo of this install plus Haswell/Z87 is because I used the same hard drive with the same install on that de-lidded 3770K and Max V Gene @ 4.5 and 4.6 ghz running IBT, LinX, Prime95, Aida for hours without issue last night using 139 - 154 watts of power.

But I can say that 4.375 Ghz is a crappy overclock, and not much better than I'd achieve with a non-K 3770 which can go to 4.3Ghz with that multi-core enhancement option on most Z77 motherboards. If this ends up being the case I'm going to opt out of Haswell rather quickly.

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Originally Posted by Spblue View Post
Well, I have to revise the numbers. Even if the CPU was stable @ 4.6Ghz in AIDA, as soon as I started a Prime95 test it would crash within seconds.

After dozens of hours of testing, the best stable clock I could reach was 4.45Ghz at 1.31v. Those results are horrible... If at least I could convince myself that I've got a "bad" chip, but looking at the general overclocking results, this isn't the case. Haswell chips that oc well seem to be very rare, and the engineering samples were obviously cherry picked to a degree we hadn't seen before from Intel.
Yeah, Aida64 sucks for stability testing. SKYMTL mentioned that in the review thread too. Same issues here. Prime95 died within five minutes and Aida64 was running for over half an hour for me, though as I've said above, there may be other issues at play. I'll find out tonight. Yay.
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Old June 15, 2013, 07:40 AM
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Quote:
Originally Posted by zoob View Post
If somebody has both a 3770K and 4770K, would you mind comparing power draw @ 4.5GHz?
I put my Asus maximus V gene and 3770k on this same windows installation and tested while connected it to my kill-a-watt.

With prime95 at 4.6ghz and 1.29 volts vcore it hit 139 watts usage and with Intel burn test 155 watts.

My disastrous 4770k at 4.3ghz and 1.33 volts vcore was 183 watts in prime95 and 212 watts in Intel burn test. This was after a full windows 7 sp1 x64 reinstall and driver install for the gryphon z87.

Any higher multiplier like 44 for 4.4 ghz crashed within ten minutes. Higher vcore only resulted in slightly longer runs before crashing or 100 Celsius in ibt and subsequent throttling down to 4.1 or 4.2 ghz.

Both configurations were identical other than cpu and mobo. Both were running internal video and one ssd and two 4gb dimms at 1.5 volts and 1600mhz.

I've resigned to the fact that I have a very poor haswell chip. That'll be it for me until ivy bridge E on lga 2011.



I've been overclocking for nearly 22 years and never had such a poorly overclocking chip in terms of percentage in that time.

Edit: I got it somewhat stable using adaptive voltage. It needs over 1.38 volts to get stable at 4.4 Ghz. At this level, IntelBurnTest gets up to 97 Celsius so no throttling. Kinda funny that I de-lidded it in hopes of lowered temperatures but they don't seem that low. I'll try and use Coollaboratories Liquid Ultra on both side of the IHS now. At this voltage it uses over 232 watts on Intel Burn Test and somewhere between 210 - 218 watts in Prime95.

Intel's new marketing slogan should be

"Haswell, 72% more overclocking features than Ivy Bridge, and 80% more suck."
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Xeven: How about 10^8.450980400142567e-001 -as a possible replacement for "10e"

http://www.heatware.com/eval.php?id=71732

Last edited by 10e; June 17, 2013 at 08:11 AM.
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Old June 15, 2013, 09:12 AM
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Any more stories like this and I'll cry.
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Old June 15, 2013, 09:21 AM
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:( My buddy in the states is picking up his 4770K... I asked him to try and get one for me.

Guess I won't feel so bad if he doesn't.... I only managed to get a 3770K @ 4.8GHz last month lol.
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Old June 15, 2013, 09:46 AM
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Sounds like X79 might be the better option, or AMD. Also, apparently you need to make sure your power supply is ready for Haswell's Zero Load Design. Else you will not see any power saving.
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Old June 19, 2013, 08:18 AM
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After getting a second 4770K (I know I know, glutton for punishment) the first chip is just crappy.

This one does 4.4 Ghz at 1.2 Volts with full stability. This accounts for a reduction of 38 watts in power consumption over my first Haswell chip, and can manage doing this without de-lidding and is sitting under 90 celsius with Intel Burn Test. I'll probably just stick the first chip in a mini-ITX HTPC for the waf and son and use this chip for moAr fun pursuits. Either way it's not not great, but it's better.

Funny thing, even though this chip was from NCIX, it was the same batch, and only 31 different in serial numbers over the first chip which was from TigerReject, so this is the variance you will see, not only within the same batch, but within a small spread of chips.
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Xeven: How about 10^8.450980400142567e-001 -as a possible replacement for "10e"

http://www.heatware.com/eval.php?id=71732
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Old June 19, 2013, 09:59 AM
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Wow big difference!
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