Help: Cache RAM compatability 61256 & 62256

[David J Rankin]

Can someone give me a not too technical answer about the use of
IS61C256AH-20N and 62256-25N in a Mother Board (486 VESA) that has
sockets (9 of) marked 61256.

Are the 62256-25N type essentially the same as 61C256-20N type or what
is the difference?

Can the two types be put in the MB together and be expected to work?

I have been supplied a mixture, and fitted them, and NO GO! That is no
change in benchmark performance and still the same very low speed
indication for the CPU (9MHz) as it was indicating before the Cache.
Which according to the notes with the program, will happen with no
cache active. The BIOS accepts the setting for enabling the Cache,
which I presume it must be seeing the Tag Ram anyway.

So am wanting to know if my board is faulty or should I have been
supplied 9 of the 61C256-20N?

Thanks in advance for your help.

--
Kind regards from:
Dave; from downunder in Ashburton, Mid-Canterbury,
In *clean green* New Zealand.
Check out our towns Web site...
http://www.ashburton.co.nz

[David J Rankin]

david....@xtra.co.nz (David J Rankin) wrote:

>Can someone give me a not too technical answer about the use of
>IS61C256AH-20N and 62256-25N in a Mother Board (486 VESA) that has
>sockets (9 of) marked 61256.
>

>[snipped]

>So am wanting to know if my board is faulty or should I have been
>supplied 9 of the 61C256-20N?
>
>Thanks in advance for your help.
>
>--
> Kind regards from:
> Dave; from downunder in Ashburton, Mid-Canterbury,
>

Hi everybody it is me again and have found after trying another set of
Cache chips that my MB is sick regarding Cache, it even locks up when
I set it to use the CPU cache. The whole thing stopped/locked tonight
at startup just after it identifies the HDD's and I only got it to go
by replacing the Vesa I/O card with an ISA one.

Time for a PCI Mother Board. But not Pentium as yet (too expensive)

Any advice appreciated.