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Intel 440 BX chipset... Only accepts 64 meg modules?

B

bjc112

Lifer
Hey all, i am working on a computer here for someone and im a little confused..

It is a P2 SLOT 350.. on a 440 BX chipset...

This board has 4 available slots the first being occupied by a 64 meg PC 100 chip - The second by a KVR 128 meg PC 133...

Now i now they are both clocked down to 100 mhz right now, but why am i only reading 128 megs?

Wasn't sure if the board only accepted 256.. 64x4 or if i have some bad memory...
 
The BX chipset doesn't support 'high density' modules and if you try to use one, it only reads some of the memory or doesn't work at all. If your PC133 module is uses these chips, that is likely your problem. On a 256M module, you can usually tell by the number of chips - if it has 8 or more chips on both sides of the stick you are fine, if it only has 8 chips or less on one side, you aren't. On a 128M module, you need to see 8 chips on 1 side or 4 on both sides - if your module has 2 on one side or 2 on each side, it's high density and you can't use it.

Most PC133 modules sold in retail stores are of the 'high density' flavor and won't work for you.

 
The 128MB is probably a newer high-density one that the BX can't recognize properly. BX can use 128 & 256 DIMMs if they're single-sided.
 
depends what motherboard is it, i know manufactured pc's like gateway, compaq, etc...are picky on memory sizes. I had an abit bx6 (bx 440 chipset) i had a 128mb chip in it, actually 4 (512). Again like they said above ^, the newer modules won't work in bx boards
 
Thanks for that info Bozo,

This Value ram only has chips located on one side... (High Density)

Damn it i wish i knew that...
 
It's a common thing people run into. It's simply a fact that these higher density chips didn't exist when these chipsets were designed and they just don't know how to communicate with them properly. You can get regular modules from Crucial, Kingston, etc., if you use their memory configurator and order the correct part number.
 
Well i did a number on this computer, formatting and what not..

They want it back pretty soon so, i think im just gonna stick it out with 128 megs..

Only charging them like 50 bucs...

🙂
 
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