Sleeper Veteran Posted July 10, 2005 Veteran Share Posted July 10, 2005 Hey all, Can I just at a Second CPU to my server without re-installing windows, or will it screw up? Cheers Link to comment Share on other sites More sharing options...
Japlabot Posted July 10, 2005 Share Posted July 10, 2005 What is the server's current CPU? If it has Intel's HT, then no you wouldn't have to, because it would already have the SMB kernel. If not, you would have to follow a method where you have to delete the HAL. IIRC. Link to comment Share on other sites More sharing options...
Sleeper Veteran Posted July 10, 2005 Author Veteran Share Posted July 10, 2005 cool :D Its already for a XEON in it Link to comment Share on other sites More sharing options...
Steven Posted July 13, 2005 Share Posted July 13, 2005 Standard has support for 4 Processors. Enterprise 8. HT Processors are NOT counted to the license limit. Windows Server 2003 understands a logical processor where as 2000 doesn't. so 2 XEON's with HT enabled only count as 2 Processors. (They'll appear as 4 in Task Manager). Link to comment Share on other sites More sharing options...
Mattimeo Posted July 13, 2005 Share Posted July 13, 2005 Standard has support for 4 Processors. Enterprise 8.HT Processors are NOT counted to the license limit. Windows Server 2003 understands a logical processor where as 2000 doesn't. so 2 XEON's with HT enabled only count as 2 Processors. (They'll appear as 4 in Task Manager). 586205447[/snapback] Steven, I think when you are speaking technically though, you either use the single proc HAL or multi proc HAL. If Intel Hyperthreading is enabled, Windows will install using the multi proc HAL. So if you already have that HAL installed, adding another physical proc will not be an issue. In terms of licensing, he would only have a max of 4 procs (two physical, two logical) in a two proc system in which Windows Server 2003 Standard would be just fine. Link to comment Share on other sites More sharing options...
Computer Guru Posted July 13, 2005 Share Posted July 13, 2005 run sysprep to 'reseal' windwos, then add cpuy and reboot Link to comment Share on other sites More sharing options...
Martog Posted July 18, 2005 Share Posted July 18, 2005 I'm going to sorta bump this thread and ask a similar question, but a slightly different OS. I just installed my Athlon X2 Dual Core, and I had a single core installed. When I booted in XP and XP x64 (2003 code), it detected the new processor and had me reboot. Now the system reads it is ACPI Multiprocessor PC (ACPI Multiprocessor x64-based PC in x64) and task manager shows both cores there. Should I go ahead and reinstall Windows? I don't mind if I have to reinstall XP 32bit and XP x64, not a problem for me. :) Link to comment Share on other sites More sharing options...
Steven Posted July 19, 2005 Share Posted July 19, 2005 In terms of licensing, he would only have a max of 4 procs (two physical, two logical) in a two proc system in which Windows Server 2003 Standard would be just fine. 586205560[/snapback] No, thats the thing in terms of licensing it would only count as 2 processors. The logical processors don't count. They do count in Windows 2000. They dont' count in Windows Server 2003. Windows 2000 Server: 2 Processors with HT = 4 Windows Server 2003: 2 Processors with HT = 2 Which means you can have "8" in Windows Server, 4 Physical with HT. That counts as 4 which is your license max. Task Manager will show 8 but to the system it will only count 4. Link to comment Share on other sites More sharing options...
King Cobra Posted December 14, 2005 Share Posted December 14, 2005 Hi i have a rather strange situation, i have installed Windows 2003 Enterprise on a System with a Asus NCT-D and 2 Xeon Noconas Thing is, windows only shows me one CPU in task manager (yes i ckecked it to show me all the cpus), in taskmanager i see 4 cpus but under Computer it only says ACPI and the installed dll is hal.dll... how can i get it to change to multiprocessor HAL? i tried to update the driver, but it only lets me select ACPI and standard PC... thanks cobra Link to comment Share on other sites More sharing options...
John Veteran Posted December 15, 2005 Veteran Share Posted December 15, 2005 (edited) To change the HAL installed on your system: Open Device Manager. Under the Computer node, you'll find one of the following: Standard PC MPS Uniprocessor PC MPS Multiprocessor PC Advanced Configuration and Power Interface (ACPI) PC ACPI Uniprocessor PC ACPI Multiprocessor PC The first three HALs are used on non-ACPI compliant hardware, the last three are for ACPI compliant machines. You'll have to figure out which one yours is and which one you need to use. It shouldn't be that hard; in your case, you'll either have the Multiprocessor HAL already installed and you won't have to change anything. Or, you might have the Uniprocessor HAL and have to change to the Multiprocessor. To do so, select the HAL and click Update Driver. Choose to Install from a list or specific location (Advanced) and then choose Don't search. I will choose a driver to install. Ensure the Show compatible hardware checkbox is marked and then select your desired HAL. Big fat warning here: MAKE SURE YOU INSTALL ONLY A HAL DRIVER DESIGNED FOR YOUR HARDWARE!!! If you choose the wrong type, your machine WILL BE unbootable and you'll probably have to reinstall Windows. Edit: Read this MSKB article for info on the different types of HAL drivers and how to change them. According to the article, you are fully able to simply install the CPU and Windows will detect it and automatically change the HAL as required. This is what I suggest :yes: 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. Plug and Play detects that the computer devnode's hardware ID list has changed and moves the devnode back through the "found new hardware" detection process. 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. Edited December 15, 2005 by John Link to comment Share on other sites More sharing options...
King Cobra Posted December 15, 2005 Share Posted December 15, 2005 as mentioned i have Advanced Configuration and Power Interface (ACPI) PC installed, which is wrong i presume.. Don't search. I will choose a driver to install.[/i] Ensure the Show compatible hardware checkbox is marked and then select your desired HAL. problem is, i only have the following selection, although 4 CPUs are shown in taskmanager Standard PC Advanced Configuration and Power Interface (ACPI) PC Help! ;-) Link to comment Share on other sites More sharing options...
John Veteran Posted December 15, 2005 Veteran Share Posted December 15, 2005 If you're showing 4 CPUs, then it must not be wrong because it's obvious that Windows is using all of them ;) Link to comment Share on other sites More sharing options...
Recommended Posts