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Gaming and mouse response BIOS optimization guide for modern PC hardware - Page 15

post #141 of 3506
merci, merci :j

i'm trying to do the fancy IRQ thingy now, but i either took a wrong turn somewhere or there is something missing(?)
any ideas?

edit: or does this simply mean that this device is not supported by MSI?
you can see that the top one does have "MessageSignaledInterruptProperties", but most others don't.

i wonder if my setup is too old.. :E
Edited by Bucake - 4/17/14 at 7:35am
post #142 of 3506
Yeah, some devices are like that, but that's usually the ones that also won't ever want to do anything with firing events that show up in LatencyMon.

About your screenshots of LatencyMon: mine doesn't look that different if I let it run for a good while it seems. Something that had high latency will eventually show up on that main screen of the program. On the driver screen, it recorded the NVIDIA driver doing something for 1700 µs once for example.
post #143 of 3506
.
Edited by Tazzzz - 1/6/16 at 12:01pm
post #144 of 3506
Quote:
Originally Posted by Tazzzz View Post

You dont have to do this to every device u have, only if u are having issues or many devices share the same irq line like in my rig im having videocard sound card and 4 other devices on the same irq line. And ofcourse that retarded creative driver doesnt support msi mode.
I tried switching videocard to msi but i didnt like the way it felt afterwards it was kinda different and not so good. Id say if its default then there is some reasoning.
PS: dont buy creative, worst company ever.

I switched my Creative SB Z to MSI without issue..

But yeah, i wouldent buy another creative anything either ever again
post #145 of 3506
Quote:
Originally Posted by Bucake View Post

thanks for your (quick) reply :j much appreciated.

should i run this while 'doing my thing' (games, spotify, browser...), or while idling?
(it already appears that my nvidia drivers and directx are the biggest latency creators for me. - monitoring while typing this post)

edit: 15 minutes
20 minutes

damnit!

sorry for the late reply

Yeah, some nvidia drivers jump to 400+ µs for me too, the current beta driver 337.50 does not, and is usually well below 100µs

The network driver will go up by default when you use your network, the higher usage, the higher it will go, that is pretty normal
post #146 of 3506
I followed all the instructions, but nVidia drivers create 350-600us spikes. ASUS Xonar DGX drivers also create 120-250us spikes, which is normal, even with UNi Xonar drivers that reduce latency. I would suggest that you DO install Intel MEI drivers, the latest ones from Station-Drivers, but make sure to only use the .INF through the Device Manager, and not use Intel Setup. You also need to look up the latest firmware for MEI as that probably matters even more than drivers. Intel MEI is actually quite important and besides controlling something remotely (its technical description), it also controls motherboard bus, overclocking features, and whole bunch of other device functions.

There is evidence that nVidia videocards and drivers benefit from modded BIOS/firmware ROMs that disable Boost, which changes clocks and voltages all the time, which may cause DPC fluctuations/spikes.

I am not sure whether it is possible to have a fully multi-tasking PC with many functions, including gaming, if you were concentrate purely on DPC latency. For example, how does Java, even with disabled process/service, increase DPC latency? Flash? I do not need those, but I do need my good old MS Office 2013 SP1 + all updates. Is that also increasing my DPC latency?

I think the following items matter most
Updating firmware if possible and then disabling in BIOS:
-ASMedia USB 3.0
-ASMedia SATA
-All on-board devices you are not using
-Intel USB 3.0
-Legacy USB Support
-All un-used USB ports
-C-States
-Wake-Up states
-Intel SpeedStep
-HPET

Driver-wise, uninstall or better yet, re-install Windows 8.1 Pro Update 1 and never install:
-Intel drivers like RST and Chipset Drivers with exception for NIC (if you are using it), MEI, and possibly iGPU (if you are using it). Use the driver .INF files through Device Manager ONLY. Do not use any installers!
-Any ASMedia SATA or USB drivers
-Any keyboard or mouse driver (especially Logitech!)
-All other drivers that are not necessary, for which Windows has native drivers
post #147 of 3506
Everything I looked at always worked for me without installing the MEI driver (I mean with regards to overclocking). Are you sure you really need it? I've seen the same sentence you underlined posted somewhere else, but have never seen anyone actually saying they have proof for that and did not see anything that suggests it's true myself.

The biggest spikes of the NVIDIA drivers for me are usually about 200 µs. I let LatencyMon run for about 2 hours today and it did not spike higher than that. This is with a GTX 560 Ti, which has nothing of that boost stuff you mentioned, so I guess that could be a hint that what you say about patched vBIOS might be something you should try out?

Other than those spikes, the time used on average seems to be super low for the NVIDIA driver. If you divide "total execution time" by the "DPC count" in LatencyMon, you get something like 6 µs for example, so much lower than those spikes.
Edited by deepor - 4/17/14 at 4:20pm
post #148 of 3506
Interesting reading. Though I agree with some of the BIOS settings etc, "disable what you don't use" mentality,

I do question both the not installing IME and Chipset. Note that you already have IME firmware, so you're not avoiding anything. Then the question becomes how are you communicating with it using some MS driver or no driver at all? I always make sure I have the latest driver matching the IME firmware - of course I go in and disable the unnecessary services it creates.

Regarding Chipset, not installing this left me with 1 unknown device. I could update this alone using the Chipset package and now it was using my latest Intel information - everything else was using base MS or were not listed at all. Once I installed Chipset, other devices showed up that were not even there earlier + they're using Intel information instead of base MS.

Regarding the Legacy vs. MSI, I don't know about this either. In my case LAN, RAID, USB3, IME are already using MSI. The rest are not, mainly my Creative Titanium HD (did not work after trying this, no sound) and my 780 TI Classy (won't be trying this for that). Windows is smart enough to warn about IRQ conflicts and it obviously uses MSI when possible so "forcing" this just doesn't sound right IMO.
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post #149 of 3506
If it used MSI when possible we wouldent have to try and force it, when it works on most "devices"

windows is quite a mess actually, loaded with bloat and everything from the start that you have to get rid of, had 7 devices on the same IRQ, and they all switched to MSI just fine.
post #150 of 3506
Is this driver recommended to be uninstalled and replaced with default microsoft driver?

Reference under "Software 6) Intel Rapid Storage"

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