Cacheable area on ALI chipsets

Discussion relating to Socket 7 hardware.
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Cthulhu8u
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Cacheable area on ALI chipsets

Post by Cthulhu8u »

Here's some information I found on one of the 3Dfx sites I visit. The poster (whose english gets a bit confusing at at times) talks about cacheable ram on SS7 boards:

click here

Maybe this info is already posted somewhere on this site... can't remember. Any comments, does this trick work for Alladin owners?
ASUS P5A-B rev 1.04 (bios 1011 beta 02)
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Jim
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RE: Cacheable area on ALI chipsets

Post by Jim »

Interesting; but don't ask me if he is correct in stating that the Alladin V chipset can only handle cacheing 128 meg. I thought that "Tag Ram" had some influence on how much ram you can cache, and that the Alladin V was better in that regard than the MVP3.

Would be interested to hear a definitive answer about all this as I have a number of both Alladin V boards and MVP3 boards, and am not entirely sure which to use.
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Guest

Re: RE: Cacheable area on ALI chipsets

Post by Guest »

i can remeber all versiosn before revision 'e' of the aladin 5 chipset were buggy... so that external tag rams habe to be used and the caching area was limited... with revision e the are was extended to 256 mb (or perhaps even 512mb? i'm not sure)
Jim wrote:Interesting; but don't ask me if he is correct in stating that the Alladin V chipset can only handle cacheing 128 meg. I thought that "Tag Ram" had some influence on how much ram you can cache, and that the Alladin V was better in that regard than the MVP3.

Would be interested to hear a definitive answer about all this as I have a number of both Alladin V boards and MVP3 boards, and am not entirely sure which to use.
Guest

Re: RE: Cacheable area on ALI chipsets

Post by Guest »

...or, simply use a processor with own 2nd level cache on die... so boarduncached regions of memory (over 128mb) are cached by processor...
i think it works up to 1gb...
Anonymous wrote:i can remeber all versiosn before revision 'e' of the aladin 5 chipset were buggy... so that external tag rams habe to be used and the caching area was limited... with revision e the are was extended to 256 mb (or perhaps even 512mb? i'm not sure)
Jim wrote:Interesting; but don't ask me if he is correct in stating that the Alladin V chipset can only handle cacheing 128 meg. I thought that "Tag Ram" had some influence on how much ram you can cache, and that the Alladin V was better in that regard than the MVP3.

Would be interested to hear a definitive answer about all this as I have a number of both Alladin V boards and MVP3 boards, and am not entirely sure which to use.
Jim
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Post by Jim »

Cthulhu8u; you started this one, so I am going to redirect you to another one of yours from some time back: -- "128 to 256 megs? Asus P5A-B". In it you will find some posts by "nk". He did some research on the topic, which from the look of it, is more definitive than anything else I have seen on the subject. You will find the links that he posted on both the first and second page of the topic. You will also find a link posted by a "Guest" for an unofficial Win98 service pack that enables you to run some enormous amount of ram, (upwards of 4 Gig), under win98, but I am darned if I can find where I read that part. In addition you will find a link posted by "Mr2Di4" that has information on the topic.
Superpuppy 3
K6-3+ 450 ACZ (6x100)
DFI K6BV3+/66 Rev B2 (2 Meg) w/ 2x28mm Chipset Fans
2x256 Meg PC 133 Hynix SDRAM
1x 20G Maxtor (7200)
2x 80G Maxtor (7200) Ducted w/ 2x486 Fans Mount
52/24/52/16 LG CDR/RW/DVD
8/4/3/12/24/16/32 LG Super Multi
ATI 9000 aiw Radeon AGP
SB Audigy 1 MP3 Sound
CMD 649 IDE Controller
NEC USB 2 Card
Guest

Re: RE: Cacheable area on ALI chipsets

Post by Guest »

Anonymous wrote:...or, simply use a processor with own 2nd level cache on die... so boarduncached regions of memory (over 128mb) are cached by processor...
i think it works up to 1gb...
Anonymous wrote:i can remeber all versiosn before revision 'e' of the aladin 5 chipset were buggy... so that external tag rams habe to be used and the caching area was limited... with revision e the are was extended to 256 mb (or perhaps even 512mb? i'm not sure)
Jim wrote:Interesting; but don't ask me if he is correct in stating that the Alladin V chipset can only handle cacheing 128 meg. I thought that "Tag Ram" had some influence on how much ram you can cache, and that the Alladin V was better in that regard than the MVP3.

Would be interested to hear a definitive answer about all this as I have a number of both Alladin V boards and MVP3 boards, and am not entirely sure which to use.
He's right. Most reasonable way, is turning off m/b onboard L2 cash, and activating write allocation feature of k6-2+.
Jim
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RE: new to this site

Post by Jim »

About what? Re turning off cache, not a good idea. That much has finally been settled.
Superpuppy 3
K6-3+ 450 ACZ (6x100)
DFI K6BV3+/66 Rev B2 (2 Meg) w/ 2x28mm Chipset Fans
2x256 Meg PC 133 Hynix SDRAM
1x 20G Maxtor (7200)
2x 80G Maxtor (7200) Ducted w/ 2x486 Fans Mount
52/24/52/16 LG CDR/RW/DVD
8/4/3/12/24/16/32 LG Super Multi
ATI 9000 aiw Radeon AGP
SB Audigy 1 MP3 Sound
CMD 649 IDE Controller
NEC USB 2 Card
DonPedro
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Post by DonPedro »

re size of cacheable area on ali-5 chipset see here
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