Windows 8.1 coprocessor driver

[vasouv]

Hey guys, I know this isn't a helpdesk but it seems some of you have installed Win8 so I might as well ask...

I've formatted my desktop and installed Win8.1 Pro x64. I just happened to notice that in the Device Manager, there's an entry "coprocessor driver" that has an exclamanation mark, and in the System Properties (control panel), only one of my processors is showing.

Anyone have encountered this, should I be worried or what?

[osi]

I've had less than satisfying experiences with windows 8. Specifically, Windows 8 to 8.1 upgrade.

Try and grab the latest chipset drivers for your mobo and hopefully they have updated them to be 8.1 compatible.

[vasouv]

Cheers man, I was just about to edit my post and say I downloaded the drivers and will give it a go in a couple of minutes. Didn't find any Win8 drivers (mobo a bit old) so I'll try with the Win7 ones.

Now let me ask this and please excuse my noobiness, I don't know much stuff about hardware; if the drivers fail to install and leave my system as it is (LAN works so... yay), will the OS use only one of my processors and not all four of them?

[osi]

The good thing is that you don't have red X in device manager . As far as the system utilizing all processors, I can't be sure.

Something like CPU-Z should give you a good indication in that matter. It will show you the available cores/threads that the machine has.

[vasouv]

Well, the drivers were installed just fine, cpu-z shows 4 cores/4 threads so I guess I'm good, but the damn Action Center says my chipset is incompatible with Win8. Great, just great...

Guess I'll spend Christmas day re-installing Win7...

[osi]

Good luck man. Make backup's if you can for a quick restore if you have to.

One of my previous work systems would not let me even install 8.1 at all. Windows 8 worked just fine. Ended up switching my whole tower but that may not be feasible in your case.

[vasouv]

Thanks man

Well there's one positive aspect about this, even if i formatted my system for nothing; I'm not "aching" any more for Win8, hadn't I installed it I'd still be excited to give it a try, probably would have formatted at a later time.

So yeah now I'm "OK, no problem if I go back to 7". I guess there is a silver lining after all

[IvanIvanovich]

What is system specs? I have installed Windows 8.1 on quite an array of hardware everything from very old low end Via C7 system to latest Core i5/AMD APU. I've always had total success so far.

[kishy]

Not familiar with that specific item in device manager, but go into device manager, right click on the offending piece of hardware, click properties. Go to the Details tab. Change the drop down to Hardware Ids.

You're looking for a VEN_#### and a DEV_####.
E.g. Intel Sandy Bridge graphics is Vendor 8086, device 0126.

You can then Google the numbers (say, "8086 0126 device") and usually can identify what it is from there.

[Novus]

http://www.pcidatabase.com/

Try using this to narrow down the culprit.

[Oobly]

Thanks man

Well there's one positive aspect about this, even if i formatted my system for nothing; I'm not "aching" any more for Win8, hadn't I installed it I'd still be excited to give it a try, probably would have formatted at a later time.

So yeah now I'm "OK, no problem if I go back to 7". I guess there is a silver lining after all

Ah, now you can have the best of both worlds: Peace of mind AND windows 7 

I don't get why people install 8. I REALLY don't get why people then "upgrade" to 8.1.

[IvanIvanovich]

Instead service packs, now MS will have point release until 9 is ready. So it makes no sense not to install point release as it made no sense to refuse to install service pack on previous OS. Windows 8.1 have several improvement in performance to 7, have much better handling of SSD and many other under the hood benefits. If you can't manage to get used to the UI changes there are several things you can do to make it more like the old way. Too many people get too focused on hating metro and disregard all the other things the new OS have to offer.

[korrelate]

My knee jerk reaction too: wrong chipset drivers.

Last build I did was Win7 on new Asus matx with IB (3770K). I carefully inventoried all of the drivers for all this mobo and noticed a number of weird dependencies. This driver was updated before that and now this driver has to be uninstalled before that driver can be updated (or something like that). I got around this by just carefully building a list of drivers. Maybe I'm just OCD about it and maybe this didn't matter. Who knows, but this is totally a driver issue and probably more important the older your Mobo/CPU gets (because there's more versions of drivers to choose from).

I don't think you need a re-install. Just need to check your drivers. Pay particular attention to the drivers related to video and/or openCL.


Cheers,

K