DFI K6bv3+: maximum cacheable memory?

I have a DFI k6bv3+ w/2MB L2 cache. I'm figuring that if the VA503+ can
cache 256MB w/1MB of L2 cache the k6bv3+ can probably cache 512MB w/2MB of
L2 cache? The tag RAM size would be the determining factor here right? I'm
assuming write-through mode for the L2 cache.

--
Doug

Yes, that is correct for the MVP3/MVP4. If you were using write-back
mode for the L2 cache, that would limit you to 1/2 the cacheable RAM, so
that would be 256 MB with 2 MB L2 cache. For write-through, a 2 MB L2
cache would give you 512 MB cacheable RAM.




pigdos wrote:
> I have a DFI k6bv3+ w/2MB L2 cache. I'm figuring that if the VA503+ can
> cache 256MB w/1MB of L2 cache the k6bv3+ can probably cache 512MB w/2MB of
> L2 cache? The tag RAM size would be the determining factor here right? I'm
> assuming write-through mode for the L2 cache.
>

I was under the impression that it was more dependent on the CPU used
than any BIOS setting. The K6-2 can cache 256, where as the K 6 III line
can cache much more than that. I doubt if either board would be able to
use 512 MB modules, so 512 total would be the max with a K 6 III.



Alex Zorrilla wrote:
> Yes, that is correct for the MVP3/MVP4. If you were using write-back
> mode for the L2 cache, that would limit you to 1/2 the cacheable RAM, so
> that would be 256 MB with 2 MB L2 cache. For write-through, a 2 MB L2
> cache would give you 512 MB cacheable RAM.
>
>
>
>
> pigdos wrote:
>
>> I have a DFI k6bv3+ w/2MB L2 cache. I'm figuring that if the VA503+
>> can cache 256MB w/1MB of L2 cache the k6bv3+ can probably cache 512MB
>> w/2MB of L2 cache? The tag RAM size would be the determining factor
>> here right? I'm assuming write-through mode for the L2 cache.
>>

We're not talking about the on-board cache on the CPU we're talking about
the motherboard cache, which could be L2 (if you had a K6, Pentium, K62 or
Cyrix CPU) or L3 (if you had a K62+ or K63+).

--
Doug
"farmuse" <> wrote in message
news:e8ogh1$h9v$...
> I was under the impression that it was more dependent on the CPU used
> than any BIOS setting. The K6-2 can cache 256, where as the K 6 III line
> can cache much more than that. I doubt if either board would be able to
> use 512 MB modules, so 512 total would be the max with a K 6 III.
>
>
>
> Alex Zorrilla wrote:
>> Yes, that is correct for the MVP3/MVP4. If you were using write-back
>> mode for the L2 cache, that would limit you to 1/2 the cacheable RAM, so
>> that would be 256 MB with 2 MB L2 cache. For write-through, a 2 MB L2
>> cache would give you 512 MB cacheable RAM.
>>
>>
>>
>>
>> pigdos wrote:
>>
>>> I have a DFI k6bv3+ w/2MB L2 cache. I'm figuring that if the VA503+ can
>>> cache 256MB w/1MB of L2 cache the k6bv3+ can probably cache 512MB w/2MB
>>> of L2 cache? The tag RAM size would be the determining factor here
>>> right? I'm assuming write-through mode for the L2 cache.
>>>

it is dependent on the cpu not the size of the L2

On Sat, 08 Jul 2006 23:11:54 -0400, pigdos <> wrote:

> We're not talking about the on-board cache on the CPU we're talking about
> the motherboard cache, which could be L2 (if you had a K6, Pentium, K62
> or
> Cyrix CPU) or L3 (if you had a K62+ or K63+).
>



--
Using Opera's revolutionary e-mail client: http://www.opera.com/mail/

In the case of the K6-2, K6, Pentium MMX, Cyrix M-II, and other similar
processors, it is quite dependent on the amount of the L2 cache on the
motherboard. These CPUs do not have their own L2 cache, so the chipsets
designed to run them (e.g., Intel 430TX, VIA MVP3, SiS 5597/5598) make
use of the tag RAM on the motherboard's L2 cache to determine the amount
of cacheable system RAM. The actual amount of cacheable RAM depends on
the chipset, the amount of tag RAM available in the L2, and certain BIOS
settings.

Now, when the L2 was moved to the CPU (Pentium Pro, Pentium II, K6-III,
Athlon), the amount of tag RAM still makes a difference, but now it
becomes a function of the CPU in question, as opposed to the motherboard.





John and Karen wrote:
> it is dependent on the cpu not the size of the L2
>
> On Sat, 08 Jul 2006 23:11:54 -0400, pigdos <> wrote:
>
>> We're not talking about the on-board cache on the CPU we're talking about
>> the motherboard cache, which could be L2 (if you had a K6, Pentium,
>> K62 or
>> Cyrix CPU) or L3 (if you had a K62+ or K63+).
>>
>
>
>
> --Using Opera's revolutionary e-mail client: http://www.opera.com/mail/

I know all that, but for the K6 2 vs K6 III is makes a difference.

On Mon, 17 Jul 2006 11:58:15 -0400, Alex Zorrilla <> wrote:

> In the case of the K6-2, K6, Pentium MMX, Cyrix M-II, and other similar
> processors, it is quite dependent on the amount of the L2 cache on the
> motherboard. These CPUs do not have their own L2 cache, so the chipsets
> designed to run them (e.g., Intel 430TX, VIA MVP3, SiS 5597/5598) make
> use of the tag RAM on the motherboard's L2 cache to determine the amount
> of cacheable system RAM. The actual amount of cacheable RAM depends on
> the chipset, the amount of tag RAM available in the L2, and certain BIOS
> settings.
>
> Now, when the L2 was moved to the CPU (Pentium Pro, Pentium II, K6-III,
> Athlon), the amount of tag RAM still makes a difference, but now it
> becomes a function of the CPU in question, as opposed to the motherboard.
>
>
>
>
>
> John and Karen wrote:
>> it is dependent on the cpu not the size of the L2
>> On Sat, 08 Jul 2006 23:11:54 -0400, pigdos <> wrote:
>>
>>> We're not talking about the on-board cache on the CPU we're talking
>>> about
>>> the motherboard cache, which could be L2 (if you had a K6, Pentium,
>>> K62 or
>>> Cyrix CPU) or L3 (if you had a K62+ or K63+).
>>>
>> --Using Opera's revolutionary e-mail client:
>> http://www.opera.com/mail/



--
Using Opera's revolutionary e-mail client: http://www.opera.com/mail/

Ahhh, OK. Now I see what you mean. Agreed.


John and Karen wrote:
> I know all that, but for the K6 2 vs K6 III is makes a difference.
>
> On Mon, 17 Jul 2006 11:58:15 -0400, Alex Zorrilla <> wrote:
>
>> In the case of the K6-2, K6, Pentium MMX, Cyrix M-II, and other
>> similar processors, it is quite dependent on the amount of the L2
>> cache on the motherboard. These CPUs do not have their own L2 cache,
>> so the chipsets designed to run them (e.g., Intel 430TX, VIA MVP3, SiS
>> 5597/5598) make use of the tag RAM on the motherboard's L2 cache to
>> determine the amount of cacheable system RAM. The actual amount of
>> cacheable RAM depends on the chipset, the amount of tag RAM available
>> in the L2, and certain BIOS settings.
>>
>> Now, when the L2 was moved to the CPU (Pentium Pro, Pentium II,
>> K6-III, Athlon), the amount of tag RAM still makes a difference, but
>> now it becomes a function of the CPU in question, as opposed to the
>> motherboard.
>>
>>
>>
>>
>>
>> John and Karen wrote:
>>> it is dependent on the cpu not the size of the L2
>>> On Sat, 08 Jul 2006 23:11:54 -0400, pigdos <> wrote:
>>>
>>>> We're not talking about the on-board cache on the CPU we're talking
>>>> about
>>>> the motherboard cache, which could be L2 (if you had a K6, Pentium,
>>>> K62 or
>>>> Cyrix CPU) or L3 (if you had a K62+ or K63+).
>>>>
>>> --Using Opera's revolutionary e-mail client:
>>> http://www.opera.com/mail/
>
>
>
> --Using Opera's revolutionary e-mail client: http://www.opera.com/mail/

And you're still wrong because it STILL makes a difference in how much RAM
the motherboard cache can handle REGARDLESS of the type of CPU you have
installed.

--
Doug
"John and Karen" <> wrote in message
news...
> I know all that, but for the K6 2 vs K6 III is makes a difference.
>
> On Mon, 17 Jul 2006 11:58:15 -0400, Alex Zorrilla <> wrote:
>
>> In the case of the K6-2, K6, Pentium MMX, Cyrix M-II, and other similar
>> processors, it is quite dependent on the amount of the L2 cache on the
>> motherboard. These CPUs do not have their own L2 cache, so the chipsets
>> designed to run them (e.g., Intel 430TX, VIA MVP3, SiS 5597/5598) make
>> use of the tag RAM on the motherboard's L2 cache to determine the amount
>> of cacheable system RAM. The actual amount of cacheable RAM depends on
>> the chipset, the amount of tag RAM available in the L2, and certain BIOS
>> settings.
>>
>> Now, when the L2 was moved to the CPU (Pentium Pro, Pentium II, K6-III,
>> Athlon), the amount of tag RAM still makes a difference, but now it
>> becomes a function of the CPU in question, as opposed to the motherboard.
>>
>>
>>
>>
>>
>> John and Karen wrote:
>>> it is dependent on the cpu not the size of the L2
>>> On Sat, 08 Jul 2006 23:11:54 -0400, pigdos <> wrote:
>>>
>>>> We're not talking about the on-board cache on the CPU we're talking
>>>> about
>>>> the motherboard cache, which could be L2 (if you had a K6, Pentium,
>>>> K62 or
>>>> Cyrix CPU) or L3 (if you had a K62+ or K63+).
>>>>
>>> --Using Opera's revolutionary e-mail client:
>>> http://www.opera.com/mail/
>
>
>
> --
> Using Opera's revolutionary e-mail client: http://www.opera.com/mail/

I know the FIC 503+ can cache more ram with the K6 III than it can
with the K6-2. there are many instances where this is true, where what
CPU you use makes a difference. There are some P II that can cache a lot
less than other P II that run at the same speed. Believe it or not.
Because the L2 cache is on the K6 III chip itself then it is a different
configuration than with the K6-2.

pigdos wrote:

> And you're still wrong because it STILL makes a difference in how much RAM
> the motherboard cache can handle REGARDLESS of the type of CPU you have
> installed.
>