Upgradeing to a x2 cpu core ? Dont forget to reinstall your OS

[emenance]

You will need to format and reinstall your OS when plopping in that new dual core cpu!!! Check sandra cpu math benchs for proof.

this applies to msi neo boards and probley any other nforce chipset.

[Prophet_169th]

And what is the reason? I will check sandra, but how do I know thats proof?

 

More information would definately be helpful. Like something from AMD, or the manufacturer.....

[bflagg]

I'm not sure is sandra applies with your statement or not... but I would anyway due to the fact of it being a major component of the pc and all things being equal... windows will act like.....well ....windows...

[Guest EVIL-SCOTSMAN]

the reason is the HAL, if you dont install windows from scratch, HAL will load and will load config settings for a single core cpu, there is no way around this like a reg tweak or similar, the only way to change it isto reinstall and either let windows sort it auto when it installs or press f5 or f6 when installing and it will give you HAL options, usually there is no need to get the options as when windows install it will usually install the proper settings.

[zenTera]

Arrrgg...no...don't tell me such things. Just went from singlecore to dualcore and I really hope you're wrong. It took me more than 4 weeks lately to reinstall my whole system for the singlecore, don't want to do that again. Are you really sure that a reinstall is necessary?

Scotsman, what's that HAL you're talking about good for? What would my machine do wrong if I didn't reinstall? Surely that's not the reason why I get no 8000 3DMarks!?!!?

[Guest EVIL-SCOTSMAN]

if you have only 1 vid card, your scores are probably right..

 

HAL, Hardware Abstraction ;) Layer. Deep Deep shit for windows, you NEED to format to get windows to works properly with that cpu, now you can just leave it without formatting and no physical harm will come to your pc I dont think, but it is not recommended...

 

Basically HAL is what configures all your hardware when you install windows, now when you change cpu, the single core cpu that was in before its information is stored in HAL, that loads when the pc boots and there is no way to change it from single to dualcore except installing windows again...

 

its something like that...

[zenTera]

Just phoned with the tech service from AMD. Two people over there told me the same: it should not be necessary to reinstall windows, unless you encounter any problems; that' a clear statement again :confused:

You can google yourself to death, search in MS support data base, in AMD forums or wherever you want. You will not find a single place, where someone definitely says: Yes, if you change from single-core to dual-core: do a clean install, otherwise this or that will not run or you can't run on true dualcore or whatever...or no, if you have the latest drivers installed reinstalling windows wouldn't bring more out of the machine.:(

If by chance anybody has a trustworthy source dealing with that, please post links here. Until then I for myself will leave my machine as it is and do no reinstall, just hoping, that I don't spoil any resources or power with that.

[slatr]

dual core/dual cpu

 

The quickest way to check it just to open task manager and go the performance tab.

 

Do you have one CPU history block or 2?

[slatr]

http://forums.amd.com/index.php?showtopic=64936

[zenTera]

The quickest way to check it just to open task manager and go the performance tab.

 

Do you have one CPU history block or 2?

 

In Device-Manager (? don't know what it's called in English, the one where you can see your hardware) everything is ok, 2 CPUs showing up. Under 'Computer' it also tells me I've got an ACPI Multiprocessor CPU. Taskmanager also shows two history blocks with different graphs of CPU load, as well as does the AMD-dashboard-software. Furthermore, of course, after installing the CPU windows found new hardware at the first startup (but I still wonder why I didn't have to reactivate windows, I would have expected changing the CPU such a great hardware change that I would have had to). So, I guess everything works just fine:)

[zenTera]

http://forums.amd.com/index.php?showtopic=64936

 

That's exactly one of the links I found this afternoon, but that don't really help:(

This guy says you have to reinstall windows, and at the same time he quotes other people who say you don't have to.

Furthermore he says you have to install the X2 driver: No, you don't have to! I have two partitions with separate windows-versions, one for my apps and one for games only. In the BIOS I have enabled C'n'Q. Well, on my apps partition I have installed the X2 drivers, on my games partition I have not. Tried this afternoon and installed them on the games partition, too. Guess what: CPU performance even went DOWN in the benchmarks. Restored the drive immediately and won't touch it anymore with any drivers or so. But it's strange anyway:confused: Still I'm curious what a reinstall would do. Maybe if I get too much time one day, I will do a fresh install of windows on that game drive and try myself - thanks to DriveImage I will have todays state in 20 minutes if it doesn't work out well. But this day with too much time is faaar away;)

[Guest EVIL-SCOTSMAN]

You can google yourself to death, search in MS support data base, in AMD forums or wherever you want. You will not find a single place, where someone definitely says: Yes, if you change from single-core to dual-core: do a clean install,

 

dude, STFU ( not to be taken literally), there is loads of places that tell you that, so how you think google will not find one single hit is way beyond me, also there is an article in MS knowledge base regarding HAL and dualcore problem or similar, it doesnt refer to installing a new cpu from singlecore cpu to dualcore cpu with the same version of windows still installed, Its about something else todo with HAL and it mentions dualcore cpu's and such, so it is there.

 

where did you think that emenace heard about what he said in his original post ?

 

he seen it on some webpage probably after googling something most likely, thus so did I ages ago, now I have not installed DC onto the same pc that had a single core chip, so "I do not know of any problems" that it would cause, but all the websites that I looked at regarding HAL when my pc was fuxed for the last 2 months, everyone of them was regarding HAL and dualcore cpu's, so if I can find them on google, am sure as f00k you can aswell.

 

Also, there is no real need for the amd64 cpu driver, as its a driver for cool n quite to adjust clock speeds on the fly, as without the driver, there were problems previously with changing clock speeds on the fly when C&Q was enabled, so if you dont use cool n quite the driver really isnt needed.

 

me personally, I would install windoze afresh with any new cpu.

 

google is your friend!!!

[emenance]

And what is the reason? I will check sandra, but how do I know thats proof?

 

More information would definately be helpful. Like something from AMD, or the manufacturer.....

 

The cpu math test will DOUBLE. You will find out which one.