Unsure what is going on

russell664

russell664

russell664

Soldato
Joined
19 Nov 2011
Posts
4,906
Hi all,

This may seem like a noob question, and maybe it is But I can assure you I have hunted so many places, and I can't find anything which is directly related to my chip, so sorry in advance if I have missed anything.

Anyway, to the crazy story of Russell664's Desktop... :p

I have had my Haswell i5 4670k in two z87 boards so far, the last one being an Asrock extreme 6 z87, however, I decided to upgrade to a new board in preparation to building my brother a new system.

However, the voltages I used to run was a fully stable 4.4ghz @1.310 Vcore on the z87 boards.
The z97 will not play ball @4.4ghz on this voltage. I have read reviews about and they too mentioned about z97 needing the Vcore higher for older haswell chip, but the temperature where much lower than those of z87.

Now I have tried voltages from 1.360 Vcore all the way to 3.9 Vcore for a 4.6GHZ overclock, of which I end up with BSOD's with x124, more Vcore.
I really wanted to pull of a 4.6GHZ overclock with my H100i as I know I could cool the chip with that with not problems.

My motherboard is a MSI Gaming 7 Z97. I have to say the BIOS is far different to Gigabyte or Asrock, but i think I'm getting the hang of what is what, currently I'm at work, but if it helps I can provide some screenshots of my settings.

Just for reference I have tried my RAM @1333mhz, which was actually more unstable that it @2400mhz, which to me makes little sense. I have been hatching at this for about 4 days now and it's starting to annoy me.

What could be causing all this, or is there maybe a setting I have missed?

In regards to the power limits on the CPU, I have turned them all the way up which I should be able to confirm in a screenshot later.

Oh and my specs are:
1x Kingston 120GB SSD
1x WD Green 1TB HDD
1x WD Green 2TB HDD
i5 4670K
MSI Z97 Gaming 7
16GB RAM (Avexir and Team Group, however the are exactly the same CAS 10-11-11-31 @2400mhz settings, and my PC still did this before I got the new modules, actually since I get them it appears to be crashing less, I have also done memtest to confirm all is good)
2x Gigabyte 270x's
750w Corsair RM Series PSU

I used to do F@H 24/7 on my system and i wish to do it again, I just need to sort out this damn overclock. I have noticed a huge difference in frames on some games @4.4GHZ or above so I would like to try and achieve something like that.

Thanks again for any help in advance.
Currently i'm at a loss, I just wanna play Titanfall :D.
 
Just to add to my previous post, in terms of active cooling I think I am fine in terms of that, I have a NZXT Sentry Mix 2, and have most of the fans above the half point.
For fans I currently have:
3x 120mm Be Quiet Pure Wings 2
4x 140mm Be Quiet Pure Wings 2
2x Corsair SP 120 Performance Edition

I don't think any of my BSOD's are related to temps, @1.390 Vcore I was hitting 85c tops on the IETU stability test.
Also in terms of stability testing, how long for, and which is the best program to use?
I have read about and heard bout a program called 'LinX' if you can pass 20 runs of that then deem your system relativity stable, on my system I can pass 50 Passes without crashing.

I just trying to provide as much information as I can so I can track down these annoying, completely random crashes.

Thanks again,
Daniel.
 
If you need 1.31v for 4.4Ghz then you may not even get to 4.6Ghz. That's a pretty poor cpu really. Mine needs 1.265v for 4.4Ghz, 1.285v for 4.5Ghz. Don't use Linx for stress testing with Haswell as it uses AVX coding which will add a extra 0.1v to your already high voltages. Try IBT instead.
 
The problem is that on my Z87 Boards 1.31 Vcore was stable, however on my Z97 it isn't stable at that voltage.

Why could this be, the only difference was that I had an offset on my Asrock Board which was @1.25 and then a +0.060 which added to v1.310 Vcore. Could the fact I have not set an offset for my Vcore be causing an issue?

I'm really stumped, could IEST or dynamic CPU core frequency be causing an issue? I have noticed that through CPUz the voltage when idle goes really low, and sometimes the voltage goes up and down depending on use, could this maybe be causing the CPU to be starved of voltages?

In terms of IBT, how long, and how many runs would you deem as 'stable'?
For my OC what would be the best thing to do, I just want a stable 4.4ghz+ OC to be honest.

Looks like I lost the silicon lottery eh? *sigh*
 
Okay so after having a snoop around I have changed some settings, and made my Vcore Voltage Offset +.

I have set the base voltage @1.25v and set the + @0.060v which = v1.31 vcore.

The system has been left for over two days F@H, with the Girlfriend using it to sometimes play games, browse about while I was at work, and it came up decent with no crashes.
 
Sounds like a good result in the end. Sometimes a change of motherboard can mean you need to do funny things like change the voltage type and such. Unfortunately it sounds like you didn't do too well in the silicon lottery. I remember having a 3570K that wouldn't go over 4.2GHz. Very disheartening indeed!

Also you might want to edit and add to your previous posts instead of making lots of new ones, just in case the mods don't like it. :p
 
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