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Dual Processors with SP1?


thenapking

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Hey Guys,

Have just installed a stripped down version of XP SP1 on my new Core 2 Duo laptop. Can't get the 2 cores to work - there is no processors bit in the Device Manager (so 2 processors certainly aren't showing up there), and my computer has "Standard PC" underneath it, not ACPI. I know the dual core is working because i have a bloated version of XP Media Centre installed on a separate partition and that is all working as it should be.

The question is: do i need to go through the whole slipstreaming process and reinstall XP, could i run autoupdate instead, or are there drivers i could install to get it working? How much a performance hit am i likely to take if i run auto update - will it put all the crap back in that nLite has (wonderfully!) removed? Also, i didn't install any network services with nLite, so it might be a bit of a hassle to run auto update. Does some one have a link to the necessary drivers to get SP1 working with multicore processors? FYI This is an Intel Core 2 Duo T5500 1.66Ghz on an Acer 5630 Laptop.

Thanks in advance,

Tom

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As LLXX said, you need ntkrnlmp.exe.

Search for it in SYSTEM32. If it is not present, extract if from service pack2 (or SP1). The file you'll get (*.ex_) is itself compressed, any file archiver can extract it.

And as far as I'm concerned, I just realized two of my kernels were missing... :unsure:

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if you removed multi-processing support while making the install, then thats why. i had the same issue when i went to use a stripped down version that i made a while ago, i kept wondering where my second one was, then i went and made a new one that worked.

that may be something to look into.

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Thanks for all the suggestions. I'm pretty sure I wouldn't have removed the multiprocessor support, unless it was hidden under something i didn't notice. I'll check for that kernel file when i'm back on my laptop later. If i haven't got it, once i extract it from the relevant place on the xp disk, how will i get it to run? Surely i need to do more than just dump it in the system32 folder?

thanks

tom

PS It's XP Pro - home doens't do multiprocessor support does it?

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I knew this all sounded too easy. I've just dumped ntkrnlmp.exe in my system32 directory and hasn't worked. no change. does it need to be in a particular sub directory?

On my other install of XP on this machine - which does have the dual core functioning correctly - ntkrnlmp is not in the system32 directory. ntkrnlpa.exe is. Also i have checked the install disk i made with nLite and that did include ntkrnlmp.ex_

Any ideas?

Thanks!

Tom

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As far as I'm concerned, I only have ntkrpa.exe and ntoskrnl.exe BUT in device manager I have two entries, my computer is seen as ACPI multiprocessor PC, two cores are shown in task manager and 7-zip is definitely threaded.

Could you check C:\WINDOWS\system32\$winnt$.inf ?

Does it have any interesting line ?

Check your drivers. And if you run autoupdate you probably won't get any bloat back (don't make it automatic, check entries by hand).

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What on earth is a checked kernel environment? Anyway, specifying halmps or halmacpi along with ntkrlmp and ntkrpamp makes windows fail to load - it says hal.dll is corrupt. I have followed their instructions for making a "checked kernel env" because, what ever it is, it allows you to set up another kernel regime.

Nothing interesting in $winnt$ i'm afraid. I think i may have to make a slipstreamed disc and do a full reinstall with sp2...

cheers

tom

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