Strange mouse lag in BF2 when overclocking CPU

[Lowe]

Basic system:

E6600 2.4ghz,
Quad GT mobo,
2 gig Corsair 533,
GTS 8800,
Audigy 2,
Razer Boomslang 2100,
Win XP Pro.

All drivers are up to date etc, latest firmware.

If I run the system standard or just overclock the GFX, BF2 runs fine, no problems whatsoever. Silky smooth at about 100fps under most conditions. However, if I overclock the CPU up to 2.7ghz (310x9) I start to get a strange issue when mouselooking around.

Lets say you're looking directly north, and spin a 180 turn to look south. The initial response is spot on and you'd find yourself looking south. However, a split second later you'd find yourself looking south east or south west depending upon which way you had turned. It's as if something can't quite keep up. I've not noticed this kind of behaviour with any other game, but to be honest, BF2 (well, Project Reality Mod) is my main game at the moment, so this is annoying to say the least. For the moment I guess I don't really need the overclock, but it'd still be nice for a bit of extra grunt as and when, without the control issues.

Anyone got any suggestions to help?

[Lowe]

Anyone... Bueller... Bueller?

[MrP]

is the mouse usb??

if so, do you get any other problems with USB devices at that overclock?

[Lowe]

Mouse is USB - other USB devices seem fine (webcam/printer)

[mycarsavw]

My wireless optical mouse looks to the sky every now and then, I put it down to a dimpled desk surface

[streetster]

i assume your motherboard is locking all the bus speeds at 33/66/whatever, so they arent being overclocked?

do you have vsync enabled/disabled, try switching to the opposite of what you have and see if that makes any difference

what happens if you run at 300x9? same problem?

[Lowe]

I believe the mobo locks the freq yes, since I've seen that option in the bios for the PCi slots, but the usb is obviously onboard and isn't related to the PCi slots... so who knows. It's a new system and I'm not entirely clued up on it!

Vsync is usually off, I'll try forcing it on. Haven't tried 300x9, will also try that later.

[Zak33]

Anyone... Bueller... Bueller?

Oh, I'm sorry. I can't come to the door right now. I'm afraid that in my weakened condition, I could take a nasty spill down the stairs and subject myself to further school absences. You can reach my parents at their places of business. Thank you for stopping by. I appreciate your concern for my well-being. Have a nice day!


Try a different usb port..... seriously, try one on a different header. USB ports get all frisky when you overclock, cos I had this too. But it was a prnter that wouldnt work on an overclocked Intel mobo years ago.

[bluesatin]

As people have said above, try using a PS/2 port mouse just to check if that works fine.

If it does seem to work, you could try getting a usb->ps/2 conversion dongle thing (do they exist? I swear I used to have one or two)

[Lowe]

Well, I've tried a several USB ports, didn't help. I've tried turning the overclock down, but no matter what I set it to, as soon as it goes over default it starts to play up, albeit not as bad.

I'll see if I can find a dongle whatsit. Saying that though, I swear I remember reading that Razer mice don't work on PS/2

[Merlin4458]

isnt there a program that overclocks the USB ports, mrsUSB i think it was called. Maybe have something to do with not enough juice to the USB now ur overclocking, or it doesnt allow as much juice? Clock it up to 800mhz or maybe a 1000 depending on what ur mouse can take

[Lowe]

Found a dongle - will try later. I'll take a look at that USB thing too.

[Lowe]

Bum, still has problems on the PS/2 port.

I wonder if it's the network card struggling to keep up?

[Merlin4458]

overclocking can take power which was previously allocated to components away. So the network card MAY be suffering. USB port was my guess, but obviously isnt. Would be interested to know wot the problem turned out to be

[Merlin4458]

jsut had a little forum trol and seems to me as if bf2 cant seem to handle even 300mhz cpu overclock. Obviously if ur pc is stable, programs on pc should be fine with an overclock. So i personally think it can be solved by finding out what component isnt getting the juice it needs

[Lowe]

Hmm, gonna have to have a look at the rails, see what's low on juice. Should be Ok though, it's a brand new Corsair PSU. :S