Mixing different speed RAMs

bodibaski · 16-09-2008, 05:52 AM

Hi all,

I am new to this site. At my office i have a problem while upgrading RAM. Before that i was using 512MB DDR2 533MHz RAM, then i tried to add a 512MB DDR2 633MHz RAM. It is working quite well, but not with the Firefox 3.0.1 browser, it crashes often. And my PC Configuration is Intel P4 3GHz HT and the motherboard is MSI-7247.

My question is can we mix the RAMs having different speed means a 533MHz and a 633MHz together?

kozmik kaz · 16-09-2008, 08:18 PM

Unfortunely usually no. If you go into your system settings, how much physical RAM does it say it has? You might be better off picking up some Dual Channel DDR2 since it is so cheap. Also you have to make sure that You Motherboard can support 633MHz.

MSI - Innovation with Style

bodibaski · 17-09-2008, 02:23 AM

Hi,

Thanks for you reply. I am sorry about my motherboard model it is MS-7267(945GM3-F) exactly. The problem is not it supports 633MHz DDR2 RAM. I am trying to mix different speed RAM in that mother board. Usually can we mix different speed RAMs in a system or not?

The motherboard tech spec link is here,

http://www.msicomputer.com/product/p...GM3-F&class=mb

Thanks.

Big B · 17-09-2008, 05:30 PM

Of the same type, yes, you can run them together. However, you'll be limited to the speed of the slower of the two.

RAM speeds are just the maximum speed it's guaranteed at, not the only. It's like a tire speed rating. Say a tire is rated for 150MPH: it will work fine at speeds up to that, like 40MPH, but beyond that is not.

The 533MHz stuff will run up to 533MHz without issue. The 633MHz stuff will run up to 633MHz. You must go with the slower of the two for it to work without issue, as you'd be overclocking the slower stuff to run it beyond 533MHz.

If you're having a problem with one app, it's likely just that one program.

kozmik kaz · 19-09-2008, 12:33 AM

He's the Pro ^_^

16-09-2008, 05:52 AM	#1 (permalink) Top
bodibaski Geek Trainee Join Date: Sep 2008 Posts: 2 Status: Offline	Mixing different speed RAMs Hi all, I am new to this site. At my office i have a problem while upgrading RAM. Before that i was using 512MB DDR2 533MHz RAM, then i tried to add a 512MB DDR2 633MHz RAM. It is working quite well, but not with the Firefox 3.0.1 browser, it crashes often. And my PC Configuration is Intel P4 3GHz HT and the motherboard is MSI-7247. My question is can we mix the RAMs having different speed means a 533MHz and a 633MHz together?

17-09-2008, 02:23 AM	#3 (permalink) Top
bodibaski Geek Trainee Join Date: Sep 2008 Posts: 2 Status: Offline	Hi, Thanks for you reply. I am sorry about my motherboard model it is MS-7267(945GM3-F) exactly. The problem is not it supports 633MHz DDR2 RAM. I am trying to mix different speed RAM in that mother board. Usually can we mix different speed RAMs in a system or not? The motherboard tech spec link is here, http://www.msicomputer.com/product/p...GM3-F&class=mb Thanks. Last edited by bodibaski; 17-09-2008 at 02:26 AM.

17-09-2008, 05:30 PM	#4 (permalink) Top
Big B HWF Godfather Join Date: Dec 2001 Age: 28 Male Posts: 9,636 Times Helpful: 585 My Mood: Devilish Status: Offline My Computer	Of the same type, yes, you can run them together. However, you'll be limited to the speed of the slower of the two. RAM speeds are just the maximum speed it's guaranteed at, not the only. It's like a tire speed rating. Say a tire is rated for 150MPH: it will work fine at speeds up to that, like 40MPH, but beyond that is not. The 533MHz stuff will run up to 533MHz without issue. The 633MHz stuff will run up to 633MHz. You must go with the slower of the two for it to work without issue, as you'd be overclocking the slower stuff to run it beyond 533MHz. If you're having a problem with one app, it's likely just that one program. __________________ Hardware Forums\|HWF Rules\|My DVD's\|PSU FAQ\|HWF Folding Team\|2CPU

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Mixing different RAM types?	yoavby	CPU, Motherboards and Memory	4	17-03-2007 03:22 PM
Mixing RAM	lagwagon555	CPU, Motherboards and Memory	7	30-01-2007 03:55 PM
Adding Rams	Bad Boy	New Build / Upgrade Advice	6	15-08-2006 03:25 AM
RAM Mixing	Thunderfm	CPU, Motherboards and Memory	4	21-06-2005 04:12 PM
Mixing RAM	Waffle	CPU, Motherboards and Memory	2	14-09-2004 08:30 PM

16-09-2008, 08:18 PM	#2 (permalink) Top
kozmik kaz Geek Trainee Join Date: Aug 2008 Gender: Male Posts: 22 My Mood: Cheeky Status: Offline	Unfortunely usually no. If you go into your system settings, how much physical RAM does it say it has? You might be better off picking up some Dual Channel DDR2 since it is so cheap. Also you have to make sure that You Motherboard can support 633MHz. MSI - Innovation with Style

19-09-2008, 12:33 AM	#5 (permalink) Top
kozmik kaz Geek Trainee Join Date: Aug 2008 Gender: Male Posts: 22 My Mood: Cheeky Status: Offline	He's the Pro ^_^

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)