AMD Dual Core problems?

XFs · 09-21-2006, 05:37 PM

When people talk about Dual Core problems,
they talk about AMD Dual Core. Right?

I'm staying away from Intel Dual Core CPUs,
but they never had any problems. Right?

{LSK} Otacon · 09-21-2006, 05:48 PM

Ok for one, you dont need 3 threads. For 2, alot of cpus have problems, i dont thinks its AMD specifically, i havent had one problem with my X2 and it overclocks like a demon. So no, its not just AMD.

XFs · 09-25-2006, 04:05 AM

Quote:

Originally Posted by {LSK} Otacon

you dont need 3 threads

My PC froze when I posted this. I didn't even think this post existed since I looked and couldn't find it. But ... three?

Dual Core problems just BIOS. That's a relief.

PC eye · 09-24-2006, 10:42 AM

When new case sees problems with a dual core model cpu the most common advice given for correction is to update the bios on a new board. Many boards will simply not support the faster models without the newer revision.

SirKenin · 09-24-2006, 10:51 AM

The AMD dual core has several problems actually. If you do a search you will find them. One of the most notable is the need for a patch to make the dual core run properly.

There's nothing that can't be fixed with a little bit of due diligence that I know of.

PC eye · 09-25-2006, 05:23 AM

Microsoft developed a hotfix for multiple processor boards(boards with two not one cpu) that is intended for use when you see drastic performance losses. The article is seen at http://support.microsoft.com/?id=896256

How to disable the new performance state policy behavior

loadTOCNode(3, 'moreinformation');Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall your operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.

After you install the hotfix that is described in this article, you may use registry settings to disable the new performance state policy behavior. To do this, follow these steps: 1.Click Start, click Run, type regedit, and then click OK.2.Right-click HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Session Manager, point to New, and then click Key.3.Type Throttle for the new key name.4.Right-click Throttle, point to New, and then click DWORD Value.5.Type PerfEnablePackageIdle for the value name.6.Right-click PerfEnablePackageIdle, and then click Modify.7.In the Value data box, type 0. Make sure that Hexadecimal is selected in the Edit DWORD Value dialog box, and then click OK.

Note You can type 1 in the Value data box to enable the new performance state policy behavior.8.Quit Registry Editor.

StrangleHold · 09-25-2006, 01:29 PM

As fas as I know thats for Dual processors not dual cores

PC eye · 09-25-2006, 09:24 PM

Quote:

Originally Posted by StrangleHold

As fas as I know thats for Dual processors not dual cores

Read it carefully now.
Windows XP SP2 Dual Core Performance FixPosted by: Chris_Tom on Friday, October 07, 2005 - 10:35 AM

Microsoft has released a hotfix to improve performance on dual core systems. It fixes a possible decrease in performance during demand based switching. Cool 'n Quiet must be enabled for the fix to work, and Microsoft will only send you the hot fix if you have been experiencing the problem. The issue is how do you know if you are or not? AMD told me this can have an impact on some games although I've not heard of any problems, and my main gaming system is an Athlon 64 X2 3800+ at the moment. Here are some additional details. Possible decrease in performance during demand-based switching
Demand-based switching refers to the changing of ACPI processor performance states in response to system workloads. For example, demand-based switching can change voltage and frequency in response to system workloads. Windows XP processor power management implements demand-based switching through the Adaptive processor throttling policy. The Adaptive processor throttling policy dynamically and automatically adjusts the processor current performance state in response to the computers CPU use. The Adaptive processor throttling policy works without user intervention.

If you run Windows XP on a computer that has multiple processors, single-threaded workloads may move across available CPUs. This migration behavior is a natural artifact of how Windows schedules work across available CPU resources. However, if a computer is running with the Adaptive processor throttling policy, this thread migration may cause problems. For example, the Windows kernel power manager may not be able to correctly calculate the optimal target performance state for the processor. This problem occurs because the individual logical or physical processor core may appear to be less busy than the processor package actually is. On performance benchmarks that use single-threaded workloads, this artifact may become evident in the following ways:
• Decreased performance
• A high degree of variance between successive runs of the same benchmark tests
The hotfix that is described in this article includes changes to the kernel power manager. These changes make it possible to track CPU use across the processor package. This tracking helps calculate an increased target performance state.

Note This solution favors performance gains over power savings. Although benchmark performance scores may improve, battery life could be negatively affected. Therefore, this kernel policy change must be enabled in the registry to allow for maximum flexibility.
I would be interested to know if this actually effected anyone out there.

http://www.amdzone.com/modules.php?o...rder=0&thold=0

This is only one original reference to using the same hotfix for dual cored models seen in late 2005. http://support.microsoft.com/?id=896256

StrangleHold · 09-26-2006, 12:21 AM

Quote:

Originally Posted by PC eye

This is only one original reference to using the same hotfix for dual cored models seen in late 2005. http://support.microsoft.com/?id=896256

Computers that are running Windows XP Service Pack 2 and that are equipped with (multiple processors)

**Archangel** · 09-25-2006, 09:35 PM

anyone heard of such a fix for Win xp x64 pro?

09-21-2006, 05:37 PM	#1 (permalink)
XFs Silver Member Join Date: May 2006 Posts: 152	AMD Dual Core problems? When people talk about Dual Core problems, they talk about AMD Dual Core. Right? I'm staying away from Intel Dual Core CPUs, but they never had any problems. Right?

09-25-2006, 01:29 PM	#7 (permalink)
StrangleHold VIP Member Join Date: Nov 2005 Posts: 11,183	As fas as I know thats for Dual processors not dual cores __________________ NZXT Apollo S75QB 750W ZEROtherm FZ120 Phenom II 720BE (X4) 3.5GHZ. Gigabyte GA MA790X UD4P G Skill DDR2 1066 4GB. MSI GTS 250 Seagate 7200.12 500GB. Welcome to the show

09-25-2006, 09:35 PM	#10 (permalink)
Archangel Moderator Join Date: Jan 2005 Location: Netherlands Age: 22 Posts: 9,892	anyone heard of such a fix for Win xp x64 pro? __________________ Don't hit me with them negative waves so early in the morning.

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09-21-2006, 05:48 PM	#2 (permalink)
{LSK} Otacon banned Join Date: Jun 2006 Location: Kansas Age: 20 Posts: 400	Ok for one, you dont need 3 threads. For 2, alot of cpus have problems, i dont thinks its AMD specifically, i havent had one problem with my X2 and it overclocks like a demon. So no, its not just AMD.

09-24-2006, 10:42 AM	#4 (permalink)
PC eye banned Join Date: Apr 2006 Posts: 21,091	When new case sees problems with a dual core model cpu the most common advice given for correction is to update the bios on a new board. Many boards will simply not support the faster models without the newer revision.

09-24-2006, 10:51 AM	#5 (permalink)
SirKenin banned Join Date: Aug 2006 Posts: 4,711	The AMD dual core has several problems actually. If you do a search you will find them. One of the most notable is the need for a patch to make the dual core run properly. There's nothing that can't be fixed with a little bit of due diligence that I know of.

09-25-2006, 05:23 AM	#6 (permalink)
PC eye banned Join Date: Apr 2006 Posts: 21,091	Microsoft developed a hotfix for multiple processor boards(boards with two not one cpu) that is intended for use when you see drastic performance losses. The article is seen at http://support.microsoft.com/?id=896256 How to disable the new performance state policy behavior loadTOCNode(3, 'moreinformation');Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall your operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk. After you install the hotfix that is described in this article, you may use registry settings to disable the new performance state policy behavior. To do this, follow these steps: 1.Click Start, click Run, type regedit, and then click OK.2.Right-click HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Session Manager, point to New, and then click Key.3.Type Throttle for the new key name.4.Right-click Throttle, point to New, and then click DWORD Value.5.Type PerfEnablePackageIdle for the value name.6.Right-click PerfEnablePackageIdle, and then click Modify.7.In the Value data box, type 0. Make sure that Hexadecimal is selected in the Edit DWORD Value dialog box, and then click OK. Note You can type 1 in the Value data box to enable the new performance state policy behavior.8.Quit Registry Editor.