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Thread ID: 79624 2007-05-26 10:25:00 AMD Athlon 64 question Tony (4941) Press F1
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553367 2007-05-26 10:25:00 My PC has an Athlon 64 X2 dual-core 4400 processor. It all seems to be running OK, but when I look in Device Manager (Windows Vista Business) I see two instances of the processor, with the exclamation mark against one of them. If I check the properties on that one, it says "This device cannot start. (Code 10)".

Is this something I should be worried about?
Should I try uninstalling the marked instance?
Is it because I am running 32-bit Vista ona 64-bit processor?

Basically, *** is going on?
Tony (4941)
553368 2007-05-26 10:43:00 Update: I uninstalled the instance with the exclamation mark and rebooted.

Windows "found new hardware", and installed a driver, and asked me to reboot. After rebooting, the two instances were still there, but both OK.

So what has been happening? I can't see any difference in performance or anything like that.
Tony (4941)
553369 2007-05-26 13:25:00 i think this was a case of vista being a new os with dodgy hardware support.

the reason you have two instances, just like i do with a Athlon 64 X2 4600 running XP pro, is because your dual core processor is actually two processors on the same die. if you look at task manager (in xp this is, i don't know about vista, just try pressing ctrl, alt and delete at the same time), under the performance tab you'll see two graphs showing CPU load, one for each core

see pic (www.imagef1.net.nz)

running a 32bit os on a 64bit cpu will not cause any problems, you just won't be taking advantage of the benefits of 64 bit processing.
motorbyclist (188)
553370 2007-05-26 20:52:00 the reason you have two instances, just like i do with a Athlon 64 X2 4600 running XP pro, is because your dual core processor is actually two processors on the same die.I thought that might be the case.


under the performance tab you'll see two graphs showing CPU load, one for each coreIndeed I do, and what is interesting is that before I didn't, so presumably I was running at half-speed (sort of).


running a 32bit os on a 64bit cpu will not cause any problems, you just won't be taking advantage of the benefits of 64 bit processing.I chose 32-bit Vista because of a reported lack of 64-bit drivers.
Tony (4941)
553371 2007-05-27 01:00:00 i think this was a case of vista being a new os with dodgy hardware support.

***? Vista has far superior support for dual cores than any previous Windows version. Good to see someone whose never used Vista making ignorant assumptions. :rolleyes:
Pete O'Neil (6584)
553372 2007-05-27 01:11:00 ***? Vista has far superior support for dual cores than any previous Windows version. Good to see someone whose never used Vista making ignorant assumptions. :rolleyes:

And we remember posts and threads about installing service pack 2 on WinXP do we not? Stay with Win98SE for example.

There are reasons why you would dual boot.
Sweep (90)
553373 2007-05-27 06:51:00 I chose 32-bit Vista because of a reported lack of 64-bit drivers. that too. does anyone know of any software limitations? i kinda assumed that there was otherwise why still sell/buy 32bit versions?


***? Vista has far superior support for dual cores than any previous Windows version. Good to see someone whose never used Vista making ignorant assumptions. :rolleyes:

well vista was pretty successful at screwing it up, so i speculated that it may be vista's so far unimpressive driver support, being a new os this is to be expected of course and bugs may be present an ANY software. that's why i said
i think this was a case of vista being a new os with dodgy hardware support.

i never thought i'd see someone defending vista this early in the game lol
motorbyclist (188)
553374 2007-05-27 06:54:00 oh and i have used vista, but on friend's machines. from their experiences, and the beta *shudder* i have decided not to install it onto my machines until i see a compelling reason to "upgrade" from xp. i'll have another look come sp2 for vista, but by then vienna will be out anyway motorbyclist (188)
553375 2007-05-27 10:13:00 I'm running an Athlon 4200 x2 chip with Vista Ultimate 64 and it rocks!

The only thing I havn't got working is my Netgear wireless NIC.
supersi (8401)
553376 2007-05-27 10:24:00 So if I install a 64-bit version of Vista, will my current 32-bit apps run? Tony (4941)
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