Can anyone explain mouse dpi and if its causing me a problem?

double post...delete please

ok,

dpi = dots per inch

think of it this way, a dot is equal to a pixel, the more dpi you have the faster the mouse can traverse the screen, so on a 800x600 resolution(with 800dpi mouse) you could traverse the screen(left to right) by moving the mouse exactly 1 inch.

first off what kind of mouse do you have? is it laser? ball? wireless?

a ball mouse tends to get clogged up and "sticks" causing this issue, a wireless mouse may be affected by nearby metal items also causing this issue.... a laser corded mouse has none of these problems the mouse wouldnt freeze, it would simply take a long time for you to turn.

if it is a laser mouse or led mouse, then it could be the surface you are trying to play on, i find a cloth mat or the wood of my desk are best for led/laser mouse.

this problem sounds more like an overheating issue to me.

all of those temps, look very low.... i dont trust speedfan tbh, ive never had it tell me the truth, tend to use the software that came with my board(asus probe).

technically a higher dpi mouse would give you better accuracy, the way i mention about thinking of dpi is the easiest explanation.

the other way is that a higher dpi captures more images per second, this is how a mouse tells where it is going, takes an "image" then compares it to the last to work out where it is, more dpi more images per second....(the images refer to the desk surface in microscopic detail that isd picked up from the led or laser of the mouse)

dpi does have a correlation to screen res, more dpi is better with higher screen resolution.

i only mentioned overheating because you say the game is jerky, why dont you lend a mouse of a friend, preferably a G5/G9/razer diamond etc and try it.

Refernce temps. There is a newer (beta) ver of speed fan.
a good test is to (1) run newest ver of orthos and monitor temps, or load ati tools and run 3dview and mon cpu/gpu temps.
There is also coretemp and MB utilities

as fare as 28/32 C idle temps, that depends alot on your ambient temps and case air flow and CPU fan.

If your having problems shooting peps, meaning you seem to miis when your sure you have them in your sights..........You also say when playing COD4 online. It could be the server or your connection. Is it as bad when in solo play? If it's only in multiplayer, then it's your conn to the net. Whats your connection speed, use speedtest.net and speakeasy.net to find your ping in general and use the COD4 stuff to check your ping to the game server.

Some games actually lag with bad pings..

Make sure your mouse is not plugged into a usb hub, this can decrease the number in inputs/sec and make it less smooth....

800(higher just makes the mouse move even smother and see even your slightest hand shakes. so you have to be real smooth to use lets say 2500+) should be almost dead on perfect for that screen rez. I only use 800 most of the time...but if its too jumpy maybe you might want to try 600 or 400....

This is all a combination of your mouse and the in game settings too. Maybe try with Vsync on, on some games this smooths out the mouse

Some mice can run do more reports per second making things smoother(i noticed a big improvement), but the pain in that is needing an app to change the usb driver. Now all usb devices are unsigned.

What mouse are you running?

For temps, try core temp or speedfan beta. the old one reads 15c too low...your temps still look safe

Speedfan 1.34 beta no longer reads too low...you can adjust speedfan 1.33 with info found below

Adjust speedfan
http://www.tomshardware.com/forum/ [...] p-speedfan

Core temp download?
http://www.alcpu.com/CoreTemp/

I hope this helps some...

Your temps are fine, There is a guide in my sig that will explain why the gigabyte software shows a different temperature(Tcase most likely)

For your pings and packet loss. This is in many cases out of your ISP's control since the world is linked and all it takes in one busted router out in the middle(on a different ISP) to drop packets or increase your pings.

In most games you can see your ping by hitting ~. For packet loss, i know of no way to test in game. If you use teamspeak it will keep track of such things. On average packet loss for most people is in the range of 0.3 - 1 percent. but this depends of servers and even the protocol used(way too much to type).

My 518(i did not try both, the second one is a logi replacement for my MX700 because i said...no more wireless) will do 500. and thats just fine by me for a 19 dollar mouse(Staples, damn i wish i got more)

You should try the 518 again...i think they would all do it....but hey they changed it once...first ones maxed at 1600dpi and now its 1800 for some reason...

Well since you say its less smooth with more players you are almost certainly seeing others pings effecting things.

Even if you have a nice low ping of 40. The other guy with a ping of 200-400 may appear to be mini warping....

Check out the pings of others.

There may still be a graphics limmit. The more players the server has the more your computer has to render(more players, bullets, explosions, and other items they interact with.) Even when you can not see it the computer is rendering it. Thats the unfortunate reason why wall hacking works.

I would recommend trying different servers(since its not just server pings but user pings that effect game play) and seeing if you can turn down some of the in game settings. turning off shadows, AA and down shader levels can improve performance at the cost of visual quality.

A gaming mouse will do nothing to help if the actual game play is jerky.