SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Pastimes : Computer Learning

 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  
To: Zbyte who wrote (19102)4/26/2001 12:29:43 PM
From: tanstfl  Read Replies (1) of 110652
 
Hi, the following is one possible cause based on what you've mentioned so far:

"Many motherboards do not cache ram over 64 megs, and since windows uses memory from the top down, some users have actually had a slowdown in their computer when going from 64 megs to more-than-64 megs.

Most of the Pentium and Pentium mmx motherboards are based on the Intel chipsets. These chipsets do support functions to the CPU. Things like the eide hard disk controller and the expansion bus controller. For Pentium and Pentium mmx processors, there are three Intel chipsets:vx, hx, tx--generally written i430tx etc. Most of the low end soho computer are based on the vx and tx chipsets. The vx chipset is older than the tx chipset. A lot of the newer motherboards are thus based on the tx chipset. Among many other features these two chipsets only support caching of the first 64 megabytes of RAM. The hx chipset supports caching of up to 512 megabytes of RAM. The other issue with caching is that a few months ago it was reported that some hx motherboards were not manufactured correctly to cache above 64 megabytes. To cache main memory you use to types of cache memory. There is the memory that is storing the actual data that is generally quoted as the l2 cache size i.e. 256 or 512KB. Then there is additional memory called tag ram which is used to index into the cache memory. On some motherboards they didn't include enough tag ram to cache above 64 megabytes."
Report TOU ViolationShare This Post
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext