# Memory Upgrade Question

**URL:** <https://forum.kirupa.com/t/memory-upgrade-question/75827>\
**Category:** random\
**Created:** [January 12, 2005, 1:56pm UTC](https://forum.kirupa.com/t/memory-upgrade-question/75827 "2005-01-12T13:56:37Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![fester8542](https://avatars.discourse-cdn.com/v4/letter/f/a183cd/32.png) [@fester8542](https://forum.kirupa.com/u/fester8542)\
**Post date:** [January 12, 2005, 1:56pm UTC](https://forum.kirupa.com/t/memory-upgrade-question/75827/1 "2005-01-12T13:56:37Z")

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Ok I fully dont understand this.  
Please forgive me if this is a really dumb question.

Here is my board. (pic below)  
Its an Abit - IS7E  
[http://www.abit-usa.com/products/mb/products.php?categories=1&model=80](http://www.abit-usa.com/products/mb/products.php?categories=1&model=80)

Currently I have 512MB (2X256MB) of PC3200 DDR-400 Installed in it. I am looking at upgrading it to 1 GB. Obviously there are two available slots. Can I just throw a single 512 stick in any one of them (leaving one open) or do I need to match two more 256 or 512 sticks?

Sorry…I should probably know the answer to this 😊