I upgraded my RAM from 1 gig to 2.5 on a Windows Vista laptop with a Dual Core 2.1 GIG Turion CPU, upgraded my Video driver for my Radeon X1270 card and my frame rate dropped dramaticaly, Any Ideas????

Must be the new driver, have you tried installing the older one?.

how many sticks of ram do you have in your PC?

wrong driver or the ram you added was rated at a slower speed.

Take out the extra ram and see what happens. If you mix ram speed your memory will ALL fall back to the slowest speed and that will effect you performance.

Also, how many slots do you have to stick ram in?

Maybe he tried to fit 2 RAM sticks in a single slot, that would explain why it is slower...

I think he may have gone from dual channel to single channel. You need to pair up your memory for it to run dual channel. In most applications this won't make a huge difference, but anything that likes memory bandwidth it certainly will. If not it's likely the driver, rollback or uninstall-reinstall.

Wow Noob replies ....
"I think he may have gone from dual channel to single channel. "

That changes nothing!


Things To Check:

• RAM Brand Eg: Kensington - What Brand Do You Have!
  
• Check What Speed That RAM Is Running At Eg: 677 - 800Mhz
  
• Are YOUR Ram Modules Running At Different Speeds.
  
• Check What Your Graphic Cards Optimum/Recommended RAM Eg:The 8800 GTX Recommended RAM is Around 2GB - 3GB If you go over the recommended RAM it may slow down graphical games by 50%. But In Other Cases It Speeds FPS up by 3 - 10% +
  
• Check Your Processors > Has The New Driver Put Shit Running In The Background?
  
• Lastly Have You Changed Any Timing's in Your BIOS?

Do the Checklist And Report Back Here So We Can Solve This Problem..

Quote from DHRammstein :

I think he may have gone from dual channel to single channel. You need to pair up your memory for it to run dual channel. In most applications this won't make a huge difference, but anything that likes memory bandwidth it certainly will. If not it's likely the driver, rollback or uninstall-reinstall.

I'm currently running on a single-chanel set of memory - SuperPi and other memory benchmarks are a bit slower but i can't notice it in game so i doubt it.

I'm sure it's the drivers he installed.

Quote from Eclipse2000 :

That changes nothing!

Apart from halving the memory bandwidth... yeah, that can't do anything.

Does LFS need DDR2 levels of bandwidth? Doubt it.

It will affect performance (a bit), but from my experience in LFS it does very very very little.

Still waiting for more info on the "8800GTX needs x amount of RAM to run best" quote, bearing in mind i've run an 8800GTX on 1, 2 & 3 GB of RAM :P

Quote from Jakg :

Does LFS need DDR2 levels of bandwidth? Doubt it.

I was more commenting on the condescending knowitallism of the little squirt than anything else. You're right it has little real world performance benefit in LFS' case.

FIXED IT! The bios settup was assigning the lowest video RAM on auto, set it to 256mb and life is good again B)

Quote from Eclipse2000 :

Wow Noob replies ....
"I think he may have gone from dual channel to single channel. "

That changes nothing!

I gained 20-25fps when I went from single channel to dual channel, my bottleneck just happened to be my slower memory. Sorry I just don't see how dual channel memory "changes nothing".

Quote from Eclipse2000 :

Check What Your Graphic Cards Optimum/Recommended RAM Eg:The 8800 GTX Recommended RAM is Around 2GB - 3GB If you go over the recommended RAM it may slow down graphical games by 50%. But In Other Cases It Speeds FPS up by 3 - 10% +

Really! Holy Crap! I would love another topic via PM if you would like on why that is.

Quote from Eclipse2000 :

Wow Noob replies ....
"I think he may have gone from dual channel to single channel. "

That changes nothing!


Things To Check:

• RAM Brand Eg: Kensington - What Brand Do You Have!
  
• Check What Speed That RAM Is Running At Eg: 677 - 800Mhz
  
• Are YOUR Ram Modules Running At Different Speeds.
  
• Check What Your Graphic Cards Optimum/Recommended RAM Eg:The 8800 GTX Recommended RAM is Around 2GB - 3GB If you go over the recommended RAM it may slow down graphical games by 50%. But In Other Cases It Speeds FPS up by 3 - 10% +
  
• Check Your Processors > Has The New Driver Put Shit Running In The Background?
  
• Lastly Have You Changed Any Timing's in Your BIOS?

Do the Checklist And Report Back Here So We Can Solve This Problem..

Ok so what happened is Im using a Dell laptop with an integrated 256mb Radeon vid card and when I added 2gigs of RAM (677hz, dual Channel DDR2) the bios auto setting for Video RAM assignment wigged out, so if anybody dose that upgrade u need to make sure the bios setting for Vid RAM is manually set to 265mb.