Tom's Hardware > Forum > Overclocking > General Discussions > Help me, about RAM ratio and memory

Help me, about RAM ratio and memory

Forum Overclocking : General Discussions - Help me, about RAM ratio and memory

Tom's Hardware: Over 1.4 million members in 6 different countries available to answer all your high-tech questions. Sign up now! Its free!
Ask the community Add a reply
Word :    Username :           
 
goldcomputer   07-23-2007 at 10:29:43 AM

I have:
MAINBOARD: ASUS P5GZ-MX
CPU: INTEL 3GHZ 531 BUS 800MHZ
RAM: 2 module 512MB DDRII-533MHZ are running dual channel
FSB:DRAM is 3:4

1/
I don't know that is the FSB:DRAM ratio ok?
Should I set it to 1:1?
Please give some advice to overclock or optimize my system. :)

2/ In my mainboard manual was wroten that
"Memory: Dual-channel memory architecture
2 x 240-pin DIMM sockets support up to 2GB of unbufferred non-ECC 533/400 Mhz DDR2 DIMMs"
Now, if I attach to mobo 2 module 1GB (total=2GB) then will the memory be running dual channel and will the memory total be 4GB (effective speed)?

Thanks for reading.

Message quoted 1 times
Add a reply
Sponsored Links
Register or log in to remove.
menetlaus   07-23-2007 at 05:45:12 PM
- 0 +

goldcomputer wrote :

I have:
MAINBOARD: ASUS P5GZ-MX
CPU: INTEL 3GHZ 531 BUS 800MHZ
RAM: 2 module 512MB DDRII-533MHZ are running dual channel
FSB:DRAM is 3:4

1/
I don't know that is the FSB:DRAM ratio ok?
Should I set it to 1:1?
Please give some advice to overclock or optimize my system. :)

2/ In my mainboard manual was wroten that
"Memory: Dual-channel memory architecture
2 x 240-pin DIMM sockets support up to 2GB of unbufferred non-ECC 533/400 Mhz DDR2 DIMMs"
Now, if I attach to mobo 2 module 1GB (total=2GB) then will the memory be running dual channel and will the memory total be 4GB (effective speed)?

Thanks for reading.


The 4:3 ratio is correct (both CPU and Ram are Quad or Dual "pumped" so the 800 / 533 aren't the base numbers - it's actually 200 MHz CPU and 266 MHz ram) So with a 4:3 ratio - the 200 from the CPU gives a 266MHz FSB for the ram (266 "double-pumped" gives the stock 533MHz Double Data Rate)

I don't understand your Ram question, you already have 2 - 512MB sticks for a total of 1GB, and if you add 2 more 1GB sticks you will have 3GB total memory not 4GB (and GB is size and has nothing to do with effective speed).

Message quoted 1 times
Reply to menetlaus
goldcomputer   07-23-2007 at 08:24:19 PM
- 0 +

menetlaus wrote :

I don't understand your Ram question, you already have 2 - 512MB sticks for a total of 1GB, and if you add 2 more 1GB sticks you will have 3GB total memory not 4GB (and GB is size and has nothing to do with effective speed).



Thanks for your answer.
I mean that I will remove 2 modules 512MB, after, I attach 2 other modules 1GB.

Let I ask you more: somebody said that the ratio 1:1 is the best, so should I set the FSB:DRAM ratio from 3:4 to 1:1 ?

Reply to goldcomputer
menetlaus   07-23-2007 at 09:00:52 PM
- 0 +

From what I've heard, 1:1 is preferred because it's synchronized. So when the double data rate ram "talks" to the quad-pumped CPU - every other "pump" for the CPU gets additional information to or from the ram.

Where any other ratio (like say 4:3) only the first "pump" is in sync with the ram and the others don't line up as well (the data still gets through, but if the CPU was waiting on some info from ram - it has to wait another 1/4 cycle to get it.)

But with CPU speeds as fast as they are, and all the improvements in memory controllers... your a lot better off with DDR2-533 and a 4:3 ratio than running 1:1 (with DDR2-400)

Reply to menetlaus
goldcomputer   07-25-2007 at 06:47:14 PM
- 0 +

thanks friend ! nice to meet you

Reply to goldcomputer
Ask the community Add a reply
Tom's Hardware > Forum > Overclocking > General Discussions > Help me, about RAM ratio and memory
Go to:

There are 993 identified and unidentified users. To see the list of identified users, Click here.

Forum map
Bestofmedia Forum ©
2000-2009 Bestofmedia Group
Page generated in 0.370 seconds
Please mind

You are about to answer a thread that has been inactive for more than 6 months.
If you still wish to proceed, please ensure that your posting is original and does not duplicate or overlap any prior responses to this thread.

Add a reply Cancel
Sponsored links
  • Ask the community now
  • Publish
Ad
Related Topics
See all relatives topics
They won a badge
Join us in greeting them