mate, how do you find this stuff out??

i'm up for breaking my system, i'll give it a go tonight.

Hey all. So... my USB normally runs at 125Mhz? And it can run at 1000Mhz!? Why in the world does it not default to that speed if it can handle it? Does this mean that some of my USB devices that can dish the data up that fast will work faster? How about my flash drive?

Any risks?

signed - Ignorant in Wisconsin

uhh it depends can your mouse support that speed
just try to double up the speed from 125 to 250

this is the mouse polling rate, increasing the mouse polling rate will not make other usb devices faster.

having the sample rate too high can be disastrous

Has anyone found a way to change the USB polling rate in Vista SP1 x64?

Yes. Use Hidusbf and Driver Signature Enforcement Overrider.

hi im running x64 sp1 and i can't seem to do this with hidusbf, disabled dirver signature enforcement, and installed the service, but whenever i set my rate and restart in setup.exe, i lose control of my mouse. any ideas or other solutions? i would rather just overclock my mouse and not all of my usb ports since i have usb keyboard and webcam. i don't want to damage them. TIA

1. Download this program Driver Signature Overrider and put your windows into test mode.

2. Restart computer and run windows in safe mode.

3. Change your usbport.sys to one you want (500Hz/1000Hz) and restart windows.

4. Now you have to run DSO program again and choose 'Sign a System FIle' - enter the whole path to usbport.sys file like this: C:\Windows\System32\drivers\usbport.sys and then restart windows again.

5. Enjoy with 500Hz/1000Hz smooth mouse.

I uploaded all usbport.sys files with DSO program and mouserate.exe here: http://www.speedyshare.com/368949342.html

Hmmm..seems this discussion is kind of old. However, I've tried to run mouserate.exe to see exactly what my current polling rate is, and it's not working. ???

http://forum.overclock3d.net/showthread.php?t=8561

I have Vista x64 SP1 (integrated) and MX-500.

And i cannot find any usbport.sys in C:\Windows\System32\drivers\ (((

When it was Vista x86 there was one definitly.

is this good to server 2008 too ?

If anyone still have problems with changing the mousepolling rate in Vista SP1
I wrote a small howto here

Thanks for the nice guide but I can't get it work in windows vista x64 SP1 ultimate. At the point where you need to restart your mouse it goes all wrong. First of all the "restart" -button won't work so you have to manually unplug and then plug again. But when you plug it back the mouse will not work anymore. It just gives a small error sound. When I checked from the Device Manager it says windows can't load the drivers because they are somehow faulty.

I've been through all the "howto's" available around and neither of them worked for me the symptom is always the same - mouse and usb keyboard stops responding after I restart my os, no matter what! I've tried the hidusb version too :/

I'm running Vista Ultimate x64 SP1 and what I've found out is that the version number of my original usbport.sys file is 6.0.6001.18000 whilst "overclocked" ones available on the net are never newer than 6.0.6000.16386. Perhaps that could be the problem here?

Could someone give me some info about hexediting original usbport file from vista x64 SP1 in order to switch it to 500Hz? TIA

This is not working.. im i doing something wrong or what is reason because always when i overwrite my usbport.sys my usb ports stop working.. i have too this version 6.0.6001.18000 and this "hack" driver version is 6.0.6000.16386 so how i can update my usbport.sys?

All right, got it working! All i had to do was disabling driver signature check during boot (by pressing F8 and selecting proper option) as the TEST MODE doesn't in fact work on Vista x64 SP1

And what about "manual hexediting original usbport file from vista x64 SP1" namely ver. 6.0.6001.18000? Nobody can't help or it's to difficultly?!

the digital signature is still lost preventing it from working.

test signing still works fine, you just don't know what you are doing.