Tag chip is fine. Check the jumpers.

I did, please read first message again. I edited it.

Eh... you need 1024Kb cache chips. With 512Kb you only get 256KB. Tag is fine.

Okay, thanks.

To be clearer, these chips hold 512kilobits

To hold 512kilobytes you need eight of them, but since your board only have four, you only have 256KB.

4 512Kb cache chips make 2048Kb of cache. 8 bits is 1 Byte, so 2048 Kb is 256KB; your cache is fine.

appiah4 wrote:

4 512Kb cache chips make 2048Kb of cache. 8 bits is 1 Byte, so 2048 Kb is 256KB; your cache is fine.

Perfect!

Except, kilo is lowercased k, uppercased K is Kelvin. 😀
(No offence, just had to put my two cents in... 😜 )

Then we should talk of kibibytes (kiB) and not kilobytes 😁

@Deksor, well, you can use both, but you are right - kilo is ALWAYS 1000 and never 1024, kibi is 1024.

Why do some boards use 5 chips instead of 4 for cache memory? 😕
https://stason.org/TULARC/pc/motherboards/E/E … AY-EV-8038.html

RiP wrote:

Why do some boards use 5 chips instead of 4 for cache memory? 😕
https://stason.org/TULARC/pc/motherboards/E/E … AY-EV-8038.html

There can be two tag chips. Sometimes it works faster this way.

ph4nt0m wrote:

RiP wrote:

Why do some boards use 5 chips instead of 4 for cache memory? 😕
https://stason.org/TULARC/pc/motherboards/E/E … AY-EV-8038.html

There can be two tag chips. Sometimes it works faster this way.

Thanks for reply.
But actually, there are three tag chips, two bigger and one smaller at bottom 😕

RiP wrote:

ph4nt0m wrote:

RiP wrote:

Why do some boards use 5 chips instead of 4 for cache memory? 😕
https://stason.org/TULARC/pc/motherboards/E/E … AY-EV-8038.html

There can be two tag chips. Sometimes it works faster this way.

Thanks for reply.
But actually, there are three tag chips, two bigger and one smaller at bottom 😕

Some boards can take an additional chip to make extended tags for larger cacheable range or in order to enable write back functionality. This 1x64K chip seems to do the latter.

Sometimes some motherboard have 1 chip for tag, and one chip for write-back buffering. 😉 (I have a 386 with that - doubles the memory write speed (Y) )

GigAHerZ wrote:

Sometimes some motherboard have 1 chip for tag, and one chip for write-back buffering. 😉 (I have a 386 with that - doubles the memory write speed (Y) )

PC Chips M321 ?

Thanks all!
My mobos are EV-18108/EV-8038 and they have PC Chips too but not sure about the exact chipset.

ph4nt0m wrote:

GigAHerZ wrote:

Sometimes some motherboard have 1 chip for tag, and one chip for write-back buffering. 😉 (I have a 386 with that - doubles the memory write speed (Y) )

PC Chips M321 ?

Bingo!