GA-Z77X-UD5H/3770K Stability question(s).

[boondocks]

Re: GA-Z77X-UD5H/3770K Stability question(s).

The Schwab program may stress the cpu in ways that others don't.
But if the board is happy running with the C states disabled and you have no problems then that's all that really matters.

As far as your settings, every cpu/board is different to some degree, probably just coincidence that both my Z77's like identical settings.

[Ken429]

Re: GA-Z77X-UD5H/3770K Stability question(s).

Oh well, I tried LLC set to Medium and the Offset to +.020 and that gets me to the same Vcore under load as LLC set to High and the Offset at +0.000. Unfortunately, I get the same results when running Schwab's SSE stock trading program. When C3/C6 is Disabled all is well as soon as I set it to Auto the WHEA 19's start to appear in the Event Log. Maybe my CPU and/or MB are just getting worn out!

[boondocks]

Re: GA-Z77X-UD5H/3770K Stability question(s).

OK, I put the correct MB back in the case and ran ATTO and AS SSD on Auto (which is the default setting where I started).

The results with C3/C6 set on Auto were AS SSD Score 404 and ATTO Write 514984, Read 554109.

Maybe just needle quiver but the C3/C6 Auto results were lower that the Disable results - except the 554109 Read.

So at least on my configuration "Disable" shows the best SSD performance AND gets rid of the WHEA errors. The only drawback is the CPU idles 4-5C hotter. Just an aside, with the C3/C6 set to Auto the WHEA errors came back with a vengeance, in fact, IE 10 stopped working trying to enter this post because of a WHEA error. Have you go any ideas on how to fix this issue? I have tried increasing the voltage from +0.000 up to +0.025 (LLC set to High) which got the Vcore up to 1.32V under load and still got WHEA errors on one program - Schwab's Streetsmart Edge which uses very little CPU cycles! The system would run IBT and Prime95 with no issues! Is there some other voltage setting I should be playing with that will help stabilize the system when the Vcore jumps from <1.0 at idle to 1.30+ when the multiplier changes from 16 to 45 or whatever? It seem the system is ok as long as the voltage is not jumping around to save energy.

You probably just need more offset / vcore. I don't understand the basis for the WHEA errors with the C states set to Auto, I never had that problem.
Both my 3770K/UD5H boards run at around +.020 offset and medium LLC for a 4.5GHz OC.

[Ken429]

Re: GA-Z77X-UD5H/3770K Stability question(s).

OK, I put the correct MB back in the case and ran ATTO and AS SSD on Auto (which is the default setting where I started).

The results with C3/C6 set on Auto were AS SSD Score 404 and ATTO Write 514984, Read 554109.

Maybe just needle quiver but the C3/C6 Auto results were lower that the Disable results - except the 554109 Read.

So at least on my configuration "Disable" shows the best SSD performance AND gets rid of the WHEA errors. The only drawback is the CPU idles 4-5C hotter. Just an aside, with the C3/C6 set to Auto the WHEA errors came back with a vengeance, in fact, IE 10 stopped working trying to enter this post because of a WHEA error. Have you go any ideas on how to fix this issue? I have tried increasing the voltage from +0.000 up to +0.025 (LLC set to High) which got the Vcore up to 1.32V under load and still got WHEA errors on one program - Schwab's Streetsmart Edge which uses very little CPU cycles! The system would run IBT and Prime95 with no issues! Is there some other voltage setting I should be playing with that will help stabilize the system when the Vcore jumps from <1.0 at idle to 1.30+ when the multiplier changes from 16 to 45 or whatever? It seem the system is ok as long as the voltage is not jumping around to save energy.

[boondocks]

Re: GA-Z77X-UD5H/3770K Stability question(s).

I ran AS SSD and ATTO on my system (OCZ Vertex 3 120GB) and the unofficial results seem to agree with the Overclockers link I provide above.

C3/C6 Enabled AS SSD Score 396 - Disabled 443

C3/C6 Enabled ATTO 8192 Write 517465, Read 552841 - Disabled Write 523776, Read 554109
The ATTO scores were higher for all the reads and writes by about the same percentage.

So it looks like the GA-Z77X-UP5D acts like the ASUS MB in the thread. But all I really cared about is the WHEA errors go away when I Disable C3/C4.

But did you try on Auto? I know the best scores I got with my board was C states Auto.
Anyway if it works for you that's what counts.

Don't believe I ever heard of a GA-Z77X-UP5D. I have two Z77X UD5H which is what I tested on.

[Ken429]

Re: GA-Z77X-UD5H/3770K Stability question(s).

I ran AS SSD and ATTO on my system (OCZ Vertex 3 120GB) and the unofficial results seem to agree with the Overclockers link I provide above.

C3/C6 Enabled AS SSD Score 396 - Disabled 443

C3/C6 Enabled ATTO 8192 Write 517465, Read 552841 - Disabled Write 523776, Read 554109
The ATTO scores were higher for all the reads and writes by about the same percentage.

So it looks like the GA-Z77X-UD5H acts like the ASUS MB in the thread. But all I really cared about is the WHEA errors go away when I Disable C3/C4.

[boondocks]

Re: GA-Z77X-UD5H/3770K Stability question(s).

Looks like I may get a slight increase in SSD performance turning off the power saving C-States. At least, maybe, I get something for the increased idle temperatures.
Effect of Power Saving features on SSD speed

That is highly dependent on the motherboard. I did some testing last year with the UD5H and my best SSD speeds were when the C states were on Auto.
I would encourage you to do your own testing and see what you get with C states on Auto; Enabled; & Disabled.

[Ken429]

Re: GA-Z77X-UD5H/3770K Stability question(s).

Looks like I may get a slight increase in SSD performance turning off the power saving C-States. At least, maybe, I get something for the increased idle temperatures.
Effect of Power Saving features on SSD speed

[wazza300]

Re: GA-Z77X-UD5H/3770K Stability question(s).

I didn't think c3/c6 would have an affect on whea errors,with mine just throwing more dvid/offset at it cures them,but that's trickier on a non delidded chip as temps are an issue with increased voltage

but if c3/c6 disabled cures it then leave it at that,it does have something to do with low power state,normally it would be below 1v at idle and now its slightly more hence the higher idle temps,no idea on what affect it has on load temps

[Ken429]

Re: GA-Z77X-UD5H/3770K Stability question(s).

Still having issues with WHEA errors when running Schwab's SSE trading program when the CPU Frequency is set to 45. It did not seem to help adding voltage via the DVID. So...I gave up on the BIOS 16c and went back to BIOS F14 but I still had the WHEA errors when the CPU frequency was set at 45! So...I tried Disabling C3/C6 and setting the DVID back to +0.000V. IBT runs 10 passes with no errors and the system runs SSE without WHEA errors - at least today! So...it looks like the drawback to Disabling C3/C6 is the system Idles at exactly 1.032V versus ~1.000V when C3/C6 was Enabled. Also it looks like the system idle temperature is several degrees C higher. But the Maximum Core Temps when running IBT is ~3C cooler. Overclockers - Does any of this make sense?

[wazza300]

Re: GA-Z77X-UD5H/3770K Stability question(s).

its not too bad voltage/temp wise,its down to what chip you get on the silicon lottery

[Ken429]

Re: GA-Z77X-UD5H/3770K Stability question(s).

Follow up on my stability issues:
BIOS F16c seems to hang in there, I have not had to re-flash or clear CMOS and I have changed the hardware configuration several times.
Went back to using my trusted Mushkin Ridgeback 1600-C8 memory since the system wanted .015 more Vcore to achieve stability with the GSkill 2400 C10 memory.
The 3770K ran 10 passes of IBT a couple of seconds faster with the 2400 versus the 1600 memory but it also ran ~2C (83C on hottest core) hotter.

So I'm back to LLC=High and DVID +0.010. CPUz says the CPU voltage peaks at ~1.308V versus 1.320V with the DVID @+0.025 needed for the 2400 memory. I know you cannot believe everything you see on the internet but my CPU seems a little sub-par when it comes to voltage and temps running IBT at 4.5GHz OR them ASUS MB's run a little better?

[wazza300]

Re: GA-Z77X-UD5H/3770K Stability question(s).

you might have to power off the pc for a minute or two,then startup and the settings should apply,ive heard that on another forum

it's upto you whatever bios works best for you

for me on the up4 th the latest final bios works best but might be different for different models

[Ken429]

Re: GA-Z77X-UD5H/3770K Stability question(s).

I've re-flashed the 15q BIOS so many times I think I have worn it out! It seems every time I change hardware I either have to Clear CMOS and or re-flash the BIOS. So...I moved on to the latest beta version 16c. It appears to work as advertised. When I play with the DVID setting the CPU Voltage changes as it should and as a bonus I have a mouse that works in the BIOS! If, or when, this version of the BIOS starts doing strange things I will go back to F14 and leave it alone?!

[wazza300]

Re: GA-Z77X-UD5H/3770K Stability question(s).

try reflashing the same bios again and re enter oc settings

you should see a difference,seemslike it's not applying the changes