Johnny_B Posted January 7, 2002 Share Posted January 7, 2002 checked mine, its already set to 200 /512..!! Link to comment Share on other sites More sharing options...
Toxicfume Veteran Posted January 7, 2002 Veteran Share Posted January 7, 2002 ahhh!!! sorry, i got it now ;) Thanks, mine was set to 0! Link to comment Share on other sites More sharing options...
hardbag Posted January 7, 2002 Share Posted January 7, 2002 I have AMD duron 750mhz, what should be my l2cache? Link to comment Share on other sites More sharing options...
Cat Called Domino Posted January 8, 2002 Author Share Posted January 8, 2002 socket has 64 L2 and 128 L1. so....64 buddy! Link to comment Share on other sites More sharing options...
mtgriffith Posted January 8, 2002 Share Posted January 8, 2002 Run the link I posted on page 1. It's from AMD and it works for the Duron too. Link to comment Share on other sites More sharing options...
OrangesOfCourse Posted January 8, 2002 Share Posted January 8, 2002 that link worked on my INTEL PIII.. so give it a try if you own intel based processer.. btw.. Not all PIII are 256.. mine is 512.. why? i have a 450 PIII slot. laterz.. ;) Link to comment Share on other sites More sharing options...
zivan56 Posted January 8, 2002 Share Posted January 8, 2002 Here is what I got with my laptop see here Link to comment Share on other sites More sharing options...
BigBoy Posted January 8, 2002 Share Posted January 8, 2002 Check out the following KB article: http://support.microsoft.com/default.aspx?...b;EN-US;Q183063 So - on older PII system you can hope to get few % of speed increase. This is not the only place where OS checks for the cache! Link to comment Share on other sites More sharing options...
iczman Posted January 8, 2002 Share Posted January 8, 2002 "This is not related to the hardware; it is only useful for computers with direct-mapped L2 caches. Pentium II and later processors do not have direct- mapped L2 caches. SecondLevelDataCache can increase performance by approximately 2 percent in certain cases for older computers with ample memory (more than 64 MB) by scattering physical pages better in the address space so there are not so many L2 cache collisions. Setting SecondLevelDataCache to 256 KB rather than 2 MB (when the computer has a 2 MB L2 cache) would probably have about a 0.4 percent performance penalty." so basically this reg is useless for all our all-mighty-powerful comps... mmm Link to comment Share on other sites More sharing options...
zivan56 Posted January 8, 2002 Share Posted January 8, 2002 The information in this article applies to: Microsoft Windows NT Server version 4.0 Microsoft Windows NT Workstation version 4.0 Microsoft Windows NT Server, Enterprise Edition version 4.0 btw, check my benchmark a few posts up to see what it does :D Link to comment Share on other sites More sharing options...
iczman Posted January 8, 2002 Share Posted January 8, 2002 but xp uses the NT core, remember? Link to comment Share on other sites More sharing options...
Sticktron Posted January 9, 2002 Share Posted January 9, 2002 For those fiddling with your SecondLevelDataCache value, here is the scoop from Microsoft. "If the value of this entry is 0, the system attempts to retrieve the L2 cache size from the Hardware Abstraction Layer (HAL) for the platform. If it fails, it uses a default L2 cache size of 256 KB. If the value of this entry is not 0, it uses this value as the L2 cache size. This entry is designed as a secondary source of cache size information for computers on which the HAL cannot detect the L2 cache." So, if yours is set to 0, no sweat... if Windows *needs* this information, it will grab it from the HAL or default to 256KB. Link to comment Share on other sites More sharing options...
mtgriffith Posted January 9, 2002 Share Posted January 9, 2002 What if your processor is a Duron with 64 kb of L2 cache? Does it cause a problem if it defaults to 256 kb? Link to comment Share on other sites More sharing options...
MxxCon Posted January 10, 2002 Share Posted January 10, 2002 Originally posted by Sticktron For those fiddling with your SecondLevelDataCache value, here is the scoop from Microsoft. "If the value of this entry is 0, the system attempts to retrieve the L2 cache size from the Hardware Abstraction Layer (HAL) for the platform. If it fails, it uses a default L2 cache size of 256 KB. If the value of this entry is not 0, it uses this value as the L2 cache size. This entry is designed as a secondary source of cache size information for computers on which the HAL cannot detect the L2 cache." So, if yours is set to 0, no sweat... if Windows *needs* this information, it will grab it from the HAL or default to 256KB. thank you. that's what i've been saying from the begining. if your processor is a Duron, windows will grap L2 cache amount from cpu and will set it properly. unless you have really old system or malfunctioning system you don't have to worry about that reg...you have bigger problems:) Link to comment Share on other sites More sharing options...
Scorcho Posted January 11, 2002 Share Posted January 11, 2002 whew, another XP 'tweak' with negligible gains (see QoX 'tweak' - http://www.lockergnome.com/issues/daily/20011221.html). i heard the best tweak to make XP faster is to actually buy a better processor. sadly i haven't been able to back this up with benchmarks :( Link to comment Share on other sites More sharing options...
X3M Posted January 21, 2002 Share Posted January 21, 2002 I have mine already at 256. Link to comment Share on other sites More sharing options...
masterbug Posted January 27, 2002 Share Posted January 27, 2002 anybody knows what happens if its set to high. Just wondering. Thanx Link to comment Share on other sites More sharing options...
MxxCon Posted January 27, 2002 Share Posted January 27, 2002 Originally posted by masterbug anybody knows what happens if its set to high. Just wondering. Thanx read this thread and you'll know Link to comment Share on other sites More sharing options...
masterbug Posted January 30, 2002 Share Posted January 30, 2002 sorry MxxCon, guess I over looked it Link to comment Share on other sites More sharing options...
skold Posted February 1, 2002 Share Posted February 1, 2002 mine was set at 256 .. (tbird 1200) no boost for me i guess ;/ heh Link to comment Share on other sites More sharing options...
steen Posted February 1, 2002 Share Posted February 1, 2002 Originally posted by The Hillbilly Cat From Tweaktown.com The L2, or second-level, cache, is an integral part of your CPU. However, XP is very shoddy at detecting it, so setting it manually is sometimes necessary. It's easy to do, though, you simply have to navigate to HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSession ManagerMemory Management in the registry and find the value SecondLevelDataCache. You must then adjust it to the value (in kilobytes) of the L2 Cache of your processor. :) :devious: Hi again Angus. As another participant mentioned AMD has a great utility on their board which will tell you the siza and purpose of the L1 & L2 cache.Cheers :rambo: :) Link to comment Share on other sites More sharing options...
BiG DaWg Posted February 2, 2002 Share Posted February 2, 2002 I have an Athlon 4 with 256, tested with AMD's utility. Mine was set as 512. Should I set it back to 256??????????? Link to comment Share on other sites More sharing options...
steen Posted February 2, 2002 Share Posted February 2, 2002 Hi there I will say no If you are using the util from AMD it should be right, otherwise try to email AMD. All the Best :) :) Link to comment Share on other sites More sharing options...
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