WinXP SP1 Hotfix Fixes High nForce 2 CPU Utilization

[MaTrIx]

We reported on Q815411 initially on March 22nd and offered you the download as well as the german version on March 24th. The patch that fixes a memory allocation problem with SP1 and the speed of programs loading in Windows XP has another significant effect as german website HardTecs4U reports. The patch was entitled: Programs Run Slower After You Install Windows XP SP-1.

HT4U has reviewed several nForce2 mainboards in their comprehensive nForce round up. During their benchmarking sessions which included HDTach, a popular IDE performance test, they observed CPU utilization up to almost 60% under Windows XP with nForce IDE drivers. Windows XP standard drivers still showed CPU utilization in the mid 30% range.

A recent update on their mainpage now states that after applying Q815411 CPU utilization has returned to pretty standard measures of 15%. No other changes have taken place.

source: warp2search
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Added by Seawolf

http://support.microsoft.com/?kbid=815411
Note: This article was revised on 4/12/2003 to more accurately reflect the specific purpose and details of the fix. The original title of this article gave the false impression that this was a problem facing many, if not most, Windows XP users who installed SP1. In fact, the problem affects a very small number of customers who are using a privately designed program that exhibits behavior that the hotfix was created to address. (This article was previously published under the title: “Programs Run Slower After You Install Windows XP SP-1”. The contents of the hotfix itself have not changed, only the Knowledge Base documentation was revised for improved accuracy and clarity.

Windows XP
Date Time Version Size File name
--------------------------------------------------------------
28-Feb-2003 19:05 5.1.2600.1177 654,336 Ntdll.dll

If you don't think they're past THAT version number, assuming you keep up to date on the SPs and winupdates, then you're nuts.

[FastGame]

Well it worked great for me the CPU usage in HD tach went from 50% to 9% on my system and programs load faster !

What a treat

[Jazz]

Yeah i just tried them and it fixed my problems. Thanks for the link mate

Mine went from 50% to 5.9%, i just tried it now and i get 0.0% but im thinking that might be a bug

[FastGame]

Yeah i just tried them and it fixed my problems. Thanks for the link mate

Mine went from 50% to 5.9%, i just tried it now and i get 0.0% but im thinking that might be a bug

Well I'd rather think that 0.0% was a bug than go through life like I was thinking that 50% was a bug.... 8O

[Moe Foe]

Two questions.

Is this problem related to using the "NVIDIA NForce MCP2 IDE Controller" or "NVIDIA® nForce(TM) IDE Controller"?

How do you obtain the new ntdll.dll ?

[thomasj]

Here:

http://home.t-online.de/home/5200921372 ... 86_ENU.exe

[Gr8h8m]

Ok. I'm using the nVidia/Microsoft "MCP2 IDE Controller".
Before patch - HDTach reports 60.2% CPU utilization.
After patch - reports 11.5%
Seems like a goer to me!

[gumbydude]

Thanks ThomasJ for the link!

[HellHorse]

Yeah, mine went from 58% to 8.5%

[Seawolf]

Well I wasn't having any problems but I installed it anyway (heh heh) and my system seems noticably faster (loading stuff, at least.)