Hey
I recently purchased a new computer and everythings running smoothly except for the mouse. On my previous computer i was able to get a stable 1000hz mouse rate, but on the new comp its very jumpy and averages at 749hz or smth.
Anyone have any tips how to fix it?
The motherboard is Evga X58 SLI and im running Win xp sp3.

Just use 500hz. You won't feel a difference anyway.

I would try win xp sp2 and hidusbf.

Installing Windows 7 fixed this issue for me (I also tried installing xp sp2 but it didnt change anything).
I'm now getting stableish 1000hz, which is nice

same here - winxp & DA and it returns 749hz .. my test show that is not measuring problem . before i changed some hardware was 1000hz :/
so win 7 you say .. for now i use 500hz ;{

For XP SP3:

http://zachem.org/temp/USB.Patch.XP.SP3.zip

i think you can consult with the brand you have purchased your computer from. or you can change the mouse.

Using this guide http://helpdeskgeek.com/windows-vista-tips/manage-irq-settings-windows-vista-7/ to prioritize the IRQ of the USB I have my mouse connected to made the rate totally stable at 1000 :-)

Update 2011-01-07 18:12

Just for clarity:

Stable 1000Hz for dmt means like 990-1000Hz when doing a decent size circle

I have this level of stability for all my main mice in all of my USB ports on x58 mobo.

But I still contend that mice only send packages when they need to, so there is no need for actual stable 1000Hz like with FPS. Mouse Hz recorders like markC's that show Hz for wheel etc can easily verify this, showing a steady 1Hz when you are scrolling at under one scroll click per second. This also means that mice won't be sending updates 1000Hz when they don't need to.

In other words, I don't recommend you go through this hassle unless you have very unstable Hz, like 500-1000Hz when drawing circles. It might also be that your mouse doesn't perform well or consistently with 1000Hz and you should drop to 500Hz. For example mx518 (newer version) doesn't seem to like 1000Hz, and you can feel it in qw as a certain type of lagging. Seemed to be the same as with G1 and 500Hz, both mice work just fine when you drop to half (500Hz and 250Hz).


Old post continues

Just to make this a little bit easier for other people trying. To find the correct USB Universal Host Controller (USB UHC) for your mouse:


1. Open compmgmt.msc
2. Go to Device Manager
3. View -> Devices by connection
4. Click open the USB UHC branches till you find your mouse.
4.1 The path should look like:
USB UHC -> USB Root Hub - USB Input Device -> HID-compliant mouse

And then concerning the fix. I cannot produce a totally stable Hz with Zowie EC1, Razer Abyssus, Razer DeathAdder Respawn or Logitech MX518 (hidusbf 'overclocked'). The Hz seems more stable in increments, but it is not at the max Hz all the time. I'm still quite skeptical whether all mice even send at full rate when they don't have enough data to send. On both of these mice, when I move it really quick, I'm at quite a stable 1000Hz (ec1) and 500Hz (mx518).

This was tested with IRQ19Priority 1.

DMT, could you please post a more detailed description of what you actually did so that I and others can make sure that we didn't do something wrong?

saw a post once on x58 and bad usb polling
ceck this post
http://www.esreality.com/?a=post&id=1981209
"Intel's USB Controller in the P55 and X58 chipsets is dodgy, it cannot provide a stable report rate.
.... I have asked clanmates and friends running P55 or X58 to test their USB polling rates with mouserate.exe and they were all suffering the same clipping issues"

I'm actually using a X58 motherboard. Only one of the ports can give me stable khz.

By using the guide, on a Razer Deathadder Black Edition with an oldish pc (E5400 on a low end ASUS motherboard), I was able to get stable (950-1000 average on circles) by setting IRQ priorities as follows; IRQ 8 (system cmos/real time clock) as 1 for better input/output speed of overall system, IRQ19 as 2 (the usb port the deathadder is plugged into) and then the changed the default priority 2 to 3 (Win32PrioritySeparation). I was going to add the video card IRQ in there but I feel I don't need to as the IRQ8 makes a big difference for the overall computer! Instead of capping fps at a stable 255 I am now capping at 525 which is stable also! Admitidly my graphics settings are very low but boot up time is definitely faster (after windows loading screen) with IRQ8 set to high priority!