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Haswell Overclocking Guide [With Statistics] - Page 1031

post #10301 of 19539
Will a fresh install help if there is no errors found??
post #10302 of 19539
Quote:
Originally Posted by SgtRotty View Post

Will a fresh install help if there is no errors found??

*Try this hotfix
http://support.microsoft.com/kb/2528614

*Back up and format may help.

*Update all device drivers, BIOSs & firmware.
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post #10303 of 19539
Quote:
Originally Posted by coelacanth View Post

In my opinion the whole batch thing is kind of overblown. In addition people don't understand what the batch numbers mean. When your batch number is 3315B357 and you say "avoid Costa Rica batch 331, it sucks" that doesn't make sense.

Saying Costa Rica batch 331 is redundant. The first "3" means Costa Rica. The Costa Rica foundry's plant code is 3.

The second 3 is the year it was made (2013).

The third and fourth numbers are the week it was made. So saying 331 indicates a CPU made in Costa Rica in 2013 anywhere from week 10 to week 19. Effectively you're saying that all the CPUs made between week 1 and week 19 suck when you say "batch 331 sucks." That's almost 5 months of production and I guarantee there are thousands of golden chips made in the first 5 months of 2013.

Letters / digits 5 through 8 are the lot number. So even within 3315 (Costa Rica CPUs made in week 15 of 2013) there are many different lots.

Lastly, even people with the exact same batches and even the same lot get chips that OC differently.

I'm not saying there is nothing to batch numbers, but it's definitely overhyped. At a bare minimum you need to list the first 4 digits (or letters since some plant codes are letters, e.g. L is Malaysia) to even identify the time period and location of origin of an Intel CPU.

Thank You for this correction and explanation, i didn't know the meaning of the numbers.
post #10304 of 19539
Quote:
Originally Posted by SgtRotty View Post

Will a fresh install help if there is no errors found??

Probably but I'd hold off on going that far, 1 BSOD really isn't enough to cause you to do that, if however you're getting it frequently then you need remedy it.

I'd say try the hotfix for now and see how it goes for the next month or 2 unless you want to do a fresh install as it wouldn't hurt to do it
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post #10305 of 19539
Posted this over on the Haswell Owners thread, but now realized it was more appropriate here so I'm reposting.

Just got myself a Haswell (4770k) and I'm already considering returning it and playing the silicon lottery again. Love the chip and all, it's been solid... But after a couple of days of tweeking and testing, I've come to the conclusion that the one I got is just plain bottom of the barrel. Heard of a few people with similar issues, so it seems this chip is perhaps even more of a lotto than others.

Running it on a GA-Z87X-OC with Crucial Ballistix Sport RAM @ 1600mhz / 1.5v (tried 1333 also). Using an H50 cooler.

I can hit 4.3ghz without it putting up much of a fight at ~1.25v but as soon as I bump it to 4.4 I'm having to go all the way to 1.360v for any kind of stability. Currently I'm sitting at 4.4ghz @ 1.36 vcore, with the uncore at 4ghz (1.15v). I'm certainly not displeased with this speed and there isn't any actual reason why I need it to go any faster, but it seems the majority of users are able to squeeze quite a bit more clock speed out of this, especially at the voltages I'm running at.





Yes I realize the temps I'm getting are pretty high, but that could be reduced if I played with my cooling setup a bit and possibly even a delid/TIM swap. Major concern is just the fact that I'm having to get the voltage that high to even reach 4.4, while most users seem to be able to get 4.5 at >1.3v.

Do I need to go any faster than that? Nope, just mildly annoyed at being on the bottom of the barrel of these Haswells. wink.gif




TL;DR: I'm sad cuz my badass CPU isn't moar badass. To return or not to return.... smile.gif
post #10306 of 19539
Quote:
But after a couple of days of tweeking and testing, I've come to the conclusion that the one I got is just plain bottom of the barrel.
Quote:
I can hit 4.3ghz without it putting up much of a fight at ~1.25v but as soon as I bump it to 4.4 I'm having to go all the way to 1.360v for any kind of stability.

This to me screams that you're not doing stuff like playing with VRIN properly. +0.11v for 100mhz, starting from 1.25v? That just doesn't really happen. Straight to eliminating other variables - you're using RAM at 1600mhz, auto SA/DIO/AIO, 33x uncore with 1.15 ring, VRIN LLC is extreme? If not, set all of those. Start out @~1.25vcore, 1.9vrin.

You're also using XTU which is trickier or at least hotter than what many people stability test with - you might want to try grabbing the x264 download from the OP.

If you're getting any kind of instability, be sure to note what type it is, how programs crash etc, if you bluescreen, how long did it take each time and what error code did it throw, etc. That's how you diagnose and fix things without randomly throwing voltages and hoping that you're hitting the right thing - it's still a little bit of a guessing game, but this is better than >completely< random approach.
Quote:
while most users seem to be able to get 4.5 at >1.3v.

Not really the case, ~4.5@1.3 is standard. Looks to me like you can do 4.4@1.3 which isn't great but it's not terrifyingly bad either
Edited by Cyro999 - 2/24/14 at 7:56am
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post #10307 of 19539
Quote:
Originally Posted by Cyro999 View Post

You're also using XTU which is trickier or at least hotter than what many people stability test with.

I don't know I could run the stability test with XTU indefinitely with 4.5 @ 1.27 but it would crash within minutes of running the prime benchmark in XTU, same with Aida64 that would run fine too, but I decided to settle on the 1344 settings in prime you posted as my stability benchmark which is why I'm at 4.4 instead of the 4.5 I wanted

As for Funk selling the chip and playing the lottery again, what happens if you get a chip that's even worse and you can't even do 4.3 ? I really wanted my chip to hit 4.5, technically I could have avoided running Prime altogether and I could say my chip was stable as it did fine in everything but prime at 4.5 however for me it wasn't stable but I wasn't going to throw it away and cry over 100mhz, is it really worth that much to you for what is pretty much insignificant in terms of general every day use ?
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post #10308 of 19539
Quote:
Originally Posted by Cyro999 View Post


This to me screams that you're not doing stuff like playing with VRIN properly. +0.11v for 100mhz, starting from 1.25v? That just doesn't really happen. Straight to eliminating other variables - you're using RAM at 1600mhz, auto SA/DIO/AIO, 33x uncore with 1.15 ring, VRIN LLC is extreme? If not, set all of those. Start out @~1.25vcore, 1.9vrin.

First of all thanks for the reply. I've tried going as high as 2.0 vrin and still can't hit 4.5ghz. My RAM is 1600 and at the time of these tests I had set it to 1333 just for the sake of testing. I have tried 4.5 with uncore set at factory, haven't tried setting it lower than factory. I suppose I can increase VRIN even further but I'm not sure how big a difference that's going to make after 2.0.

Also, when I set this to 4.5ghz I get an almost immediate crash with any stress tester, so it's clear (I think) that I need to go higher on the voltage. With my current cooling, though, it's difficult for me to go any higher than 1.4 without getting throttled. Obviously that's something I can work with later, though, but again I'd like to see 4.5 at a lower voltage than 1.4 as others have.
Quote:
You're also using XTU which is trickier or at least hotter than what many people stability test with - you might want to try grabbing the x264 download from the OP.

I had been using this as well as prime95 to check for stability. I will try the x264 as well.
Quote:
If you're getting any kind of instability, be sure to note what type it is, how programs crash etc, if you bluescreen, how long did it take each time and what error code did it throw, etc. That's how you diagnose and fix things without randomly throwing voltages and hoping that you're hitting the right thing - it's still a little bit of a guessing game, but this is better than >completely< random approach.
Not really the case, ~4.5@1.3 is standard. Looks to me like you can do 4.4@1.3 which isn't great but it's not terrifyingly bad either

I did a solid bit of testing overall and wasn't completely random with it, I did have a method to it. With that said I didn't document it for ****, so I'm going off memory atm which is just a bad idea. When I get home tonight I'll start over and try to actually document my results to better troubleshoot it. I'm still getting the overall feeling that I got somewhat of a dud, though, just based on how high I'm having to go on vcore to even hit 4.4ghz.


Quote:
Originally Posted by Minusorange View Post

As for Funk selling the chip and playing the lottery again, what happens if you get a chip that's even worse and you can't even do 4.3 ? I really wanted my chip to hit 4.5, technically I could have avoided running Prime altogether and I could say my chip was stable as it did fine in everything but prime at 4.5 however for me it wasn't stable but I wasn't going to throw it away and cry over 100mhz, is it really worth that much to you for what is pretty much insignificant in terms of general every day use ?

Plan was actually to come up with some reason to return it to Newegg for replacement. Sketchy, I know. tongue.gif And yeah I know I could theoretically get worse, and I realize that these results of course will make little to no difference in the long run, but if my testing is accurate so far I'm in the bottom 20% or so, so odds are decent that I get a better one or at least as good. It's mainly just annoying me knowing I'm in a low percentile, and hurting my unga bunga e-peen. I do realize the insignificance of this and that I'm being picky.

I'm going to do some more testing to be sure before I consider that route, though.
Edited by Funkwheat - 2/24/14 at 8:17am
post #10309 of 19539
Quote:
Originally Posted by Cyro999 View Post

IBT is worse than prime27.9 fft 1344. I don't know a lot of details about XTU bench but it's likely hotter, too
I just did a 30 mins run of XTU cpu stress test and temps didnt go above 69 on the hottest core. I guess its much lighter than other tests.
post #10310 of 19539
XTU stress test from what i've heard is just terrible, anyone who mentions XTU i'll pretty much assume they mean the benchmark which is completely different ^.^
Quote:
First of all thanks for the reply. I've tried going as high as 2.0 vrin and still can't hit 4.5ghz

Just go back and narrow down 4.3 as much as possible, whatever multi is closest to ~1.23vcore set, make sure it works properly and then work up slowly after that with other settings in place. Use ~1.85 vrin for that until you have to raise it
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