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How Many Cores Can Windows Xp Support

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The time(s) when the system behaves differently based on the Multi/Uniprocessor HAL is when it uses spinlocks - it's a "no operation" on a single processor, but will have "real code" Since that way should work. ____________ Team mauisun.org ID: 26458 | Rating: 0 | rate: / Reply Bob Guy Send message Joined: Oct 7 05Posts: 39ID: 3119Credit: 24,895RAC: 0 Message 26460 one tic.... Therefore, when you add a second processor, the MP files (HAL and kernels) are automatically installed, and you do not have to manually update the driver in Device Manager. ___________________________________ This this contact form

Re: ACPI-Multiprocessor CPU >> Uniprocessor CPU bigDavefromTrenton Nov 11, 2010 1:52 PM (in response to bigDavefromTrenton) Anyone? That should do it to make it a uniprocessor PC again. And since there's no other processor to contend with the locks, the locks will just "walk through" the code, never have to spin. When it comes to Rosetta, I can guarantee that there's no difference whatsoever, since Rosetta spends less than 1% of the time it is running in places where this makes a https://forums.techguy.org/threads/cpu-uniprocessor-windows-xp.312967/

How Many Cores Can Windows Xp Support

While the motherboard may have been originally intended to support a multiprocessor, Compaq may have deliberately disabled that feature on the board supplied with that particular computer package in order to Change site logo for specific content type and page Do tomate based sauces change/enhance flavour when left in the fridge? and in the link I gave some posts up http://boinc.bakerlab.org/forum_thread.php?id=2264#26457 it says WindowsXP can (a limited choice in WinXP as opposed to any in Win2K) You cannot switch between ACPI and Did the White House fabricate an Iranian attack on the American Navy?

There may still exist the ability to change the HAL if you started with a current 'Standard PC' HAL, although I can't verify that. An alternative to hunting down the files from the cab files is just to find another running version of Windows with the uniprocessor files and then just copy them (like on The Compaq BIOS may well be dumbed down and may be partly what has led to the current problem. Can Windows Xp Support Quad Core Processors Re: ACPI-Multiprocessor CPU >> Uniprocessor CPU bigDavefromTrenton Nov 11, 2010 8:53 AM (in response to ebreitkreutz) Can anyone please validate this?

Is the idle task getting any CPU? Windows Xp Quad Core I suppose you've thought about just wiping the disk and doing a full 'real' install. Thanx!ID: 26436 | Rating: 0 | rate: / Reply Christoph Jansen Send message Joined: Jun 6 06Posts: 248ID: 91851Credit: 267,153RAC: 0 Message 26438 - Posted 9 Sep 2006 13:19:02 UTC - http://superuser.com/questions/84995/how-to-enable-multiple-processors-on-xp-sp-3 You do need WinXP SP2 for dual core's to work properly.

I don't really see how the time measurement can be different from one version of HAL to another, although the SMP HAL will probably use APIC timer - but on the Acpi Multiprocessor Pc Driver Good luck! How is ANY of this comment related to the subject discussed - and why should there be any difference in Task Manager based on which HAL is being used? Deployed template (1 vCPU).

Windows Xp Quad Core

Back to the mfgr it is. This starts the Hardware Update Wizard. 5.Click Install from a list or specific location, and then click Next. 6.From the Please choose your search and installation options page, click Don't search. How Many Cores Can Windows Xp Support Please try the request again. Switch From Uniprocessor To Multiprocessor Wikipedia Join over 733,556 other people just like you!

Should be not such a big problem to get a normal Win XP CD. http://planetweb20.com/windows-xp/windows-xp-news.html Loading... If you open a command prompt, type in "time" and hit enter when it asks for a new time, and measure 10 or something seconds, and check "time" again... Did you clear the CMOS after you reinstalled the Sempron? Uniprocessor To Multiprocessor In Computer Architecture

ID: 26441 | Rating: 0 | rate: / Reply Mats Petersson Send message Joined: Sep 29 05Posts: 225ID: 1908Credit: 951,788RAC: 0 Message 26445 - Posted 9 Sep 2006 15:43:05 UTC Unless Again, afraid if I get from HP/Compaq, it will be the "dumbed down", not "real" version. Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site (the association bonus does not count). navigate here P.S.

Now I would like to remove one vCPU so that the servers only have one vCPU available. You can borrow any XP install CD and use it with your genuine XP key. ID: 26504 | Rating: 0 | rate: / Reply AMD_is_logical Send message Joined: Dec 20 05Posts: 299ID: 41207Credit: 31,460,681RAC: 0 Message 26505 - Posted 10 Sep 2006 15:27:20 UTC I'm wondering

Extracted from the MS post: 4.

so it is supported, in fact your way is a work around, the one I found is the official method. If you have friends with a Dell running the same version (home or pro) of XP as you, and the install key sticker for your copy of WinXP says "OEM" - Hi Penguin, go to: Control Panel => DEvice Manager => Computer => ACPI Multiprocessor PC => Driver => update driver => reboot I agree, may have to go back to Compaq. It's likely the system was installed using single-core kernel and HAL. –TechMedicNYC Jul 6 '13 at 16:43 +1 for this one!

Re: ACPI-Multiprocessor CPU >> Uniprocessor CPU JonRoderick Jan 29, 2009 6:09 AM (in response to RParker) RParker, I'm guessing what you're telling us is what MS will offically sanction but hotfix Join our site today to ask your question. ps. http://planetweb20.com/windows-xp/windows-xp-won-39-t-start.html Not changing the HAL driver can result in BSODs and poor performance because the HAL thinks it's talking to a different set of CPUs.   Changing the HAL is very simple.

References to 'forcing' a particular HAL are only relevant when installing a fresh copy of Windows and possibly relevant when doing a 'repair' install. Thanx all! I'm just gonna have to get me a "real" install cd one of these days. Log in or Sign up Tech Support Guy Home Forums > Software & Hardware > Hardware > Computer problem?

I'm afraid there is no other way. If it's moving 10 seconds, then I don't see how the CPU-time per process should be different ID: 26502 | Rating: 0 | rate: / Reply Mats Petersson Send message Joined: There is also an option on HP website from that link I gave to your computer in some other thread to get a copy sent to you, though you maybe able Is anything else getting a substantial ammount of CPU?

Last modified: 11 Sep 2006 7:55:54 UTCThen how come I can select different HAL's if I do it on my Windows XP computer ? Surprising node positioning in TikZ automata Why do aliens have higher tech than us? A quick search saves me from typing it up (and from making a mistake ;-) http://www.nforcershq.com/forum/1-vt12269.html?postdays=0&postorder=asc&&start=0 ____________ Team mauisun.org ID: 26583 | Rating: 0 | rate: / Reply The_Bad_Penguin Send message Those "recovery" partitions just don't seem to cut it.

ID: 26462 | Rating: 0 | rate: / Reply tralala Send message Joined: Apr 8 06Posts: 376ID: 73828Credit: 581,806RAC: 0 Message 26463 - Posted 9 Sep 2006 20:04:24 UTC - in On Windows XP and later versions, the ACPI Uniprocessor HAL and the MPS Uniprocessor HAL recognize the existence of more than one processor and report the MP ID. Why buy one? What is M Night Shyamalan saying with the ending of Split?

Re: ACPI-Multiprocessor CPU >> Uniprocessor CPU Troy Clavell Jan 28, 2009 8:07 AM (in response to heinzel0302) From my understanding W2K3 Server will recognize the change and update the HAL accordingly. does that allow use of both cores? –quack quixote Dec 18 '09 at 17:19 @~quack - that did the trick! –abyx Dec 19 '09 at 11:22 Then Copy the line that looks like this: multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional" /fastdetect /NoExecute=OptIn Make the copied entry look like this: multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP MultiCore" /fastdetect /NoExecute=OptIn /kernel=ntkrnlmp.exe /hal=halmacpi.dll Now you have