Please explain RAM info I found with Everest

I built this computer 2 years ago:

MB ASUS P5GD2 deluxe
P4 3.0 Prescott (overclocked 10% with no problems)


Below is the info I have copied from EVEREST. I have never changed any setting on the RAM. I didn´t notice this before until I recently found the program EVEREST. I don´t understand these numbers but it looks strange to me.

Thanks


Quote:
SPD Memory Modules:
DIMM1: Kingston 512 MB DDR2-533 DDR2 SDRAM (4.0-4-4-12 @ 266 MHz) (3.0-3-3-9 @ 200 MHz)
DIMM2: Samsung M3 78T6553CZ3-CD5 512 MB DDR2-533 DDR2 SDRAM (5.0-4-4-11 @ 266 MHz) (4.0-4-4-11 @ 266 MHz) (3.0-3-3-8 @ 200 MHz)
DIMM3: Kingston 512 MB DDR2-533 DDR2 SDRAM (5.0-4-4-12 @ 266 MHz) (4.0-4-4-12 @ 266 MHz) (3.0-3-3-9 @ 200 MHz)
DIMM4: Samsung M3 78T6553CZ3-CD5 512 MB DDR2-533 DDR2 SDRAM (5.0-4-4-11 @ 266 MHz) (4.0-4-4-11 @ 266 MHz) (3.0-3-3-8 @ 200 MHz)
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More about please explain info found everest
  1. That's the data from the SPDs of the modules (not necessarily the speed/timings the memory is actually running at). Check out this post: http://forumz.tomshardware.com/hardware/modules.php?name=Forums&file=viewtopic&p=1249881#1249881
  2. What info is shown under the MEMORY tab?
  3. Thanks for all the help so far:

    I have been building and changing my computer since my first 486sx/33 but memory timing and over clocking is something new for me. In the next few months I will upgrade the board and chip to something duel core so I thought this would be a good time to experiment and learn in case I do any damage :lol:

    This is the info from SPD, I am not sure what type of info you mean from MEMORY TAB. These 2 dims are both Kingston bought at the same time. Shouldn´t the info be the same?

    Dim 1:
    @ 266 MHz 4.0-4-4-12 (CL-RCD-RP-RAS)
    @ 200 MHz 3.0-3-3-9 (CL-RCD-RP-RAS)

    Dim 3:

    Memory Timings:
    @ 266 MHz 5.0-4-4-12 (CL-RCD-RP-RAS)
    @ 266 MHz 4.0-4-4-12 (CL-RCD-RP-RAS)
    @ 200 MHz 3.0-3-3-9 (CL-RCD-RP-RAS)
  4. Quote:
    What info is shown under the MEMORY tab?
    Ooops.....sorry. I replied as if you were using a utility called CPU-Z. You may want to download it and take a look at the MEMORY tab as well as the SPD tab.
  5. Quote:
    .... These 2 dims are both Kingston bought at the same time. Shouldn´t the info be the same?....

    Not necessarily. Manufacturers make frequent changes to DIMM modules even without changing the part numbers. I wouldn't worry about it.
  6. Quote:
    .... These 2 dims are both Kingston bought at the same time. Shouldn´t the info be the same?....

    Not necessarily. Manufacturers make frequent changes to DIMM modules even without changing the part numbers. I wouldn't worry about it.
    Yeah, if it is running fine you have no worries. I was just curious as to what the bios was actually setting as compared to what was in the SPD considering the mix you have.
  7. Hey All:

    I read the post referred to above by Mondoman a few times. I understood about half of it.

    I downloaded the program "CPU-Z" and here is what it says on the memory tab:

    Type: DDR2
    Channels: Dual
    Size: 2048 MBytes
    Frequency: 220.5 MHz
    CAS# Latency: 4.0 clocks
    RAS# to CAS# Latency: 5 clocks
    RAS# Precharge: 5 clocks
    Cycle Time (Tras): 15 clocks


    Could you explain to me in plain English what this means? I think I have a learning curve going here. The computer is working fine at the moment but I would like to learn more and possibly experiment now before I upgrade in a month or two.

    Thanks
  8. The 4,5,5,15 are the 4 primary memory latencies. The actual frequency is 220mhz which = DDR440. Your memory is designed to run at 266mhz or DDR533. However, since you have a mixed bag of 2 different types of modules, your bios is setting them all to run at a slightly relaxed speed of 220mhz, most likely to ensure stability.
  9. Can this be changed or is it best for stability to leave it alone? Also, I have noticed that the bios is over 2 years old. Everything is working fine and common sense tells me to leave it alone.

    OPINIONS (I know I am asking for it here :D )
  10. You "should" be able to manually set the timings to 5,5,5,15 and set the memory speed to 266mhz aka DDR533. However, the board might not like those speeds, especially if your memory voltage or NB voltage cannot be adjusted. This may fall into the "if it ain't broke, don't fix it" catagory.
  11. I went into the BIOS and it was set to "Auto, let SPD decide" I changed it to Manual and set it to 5, 5, 5, 15. There was a 5 setting called "DRam write Recovery Time" (set at 4) which I didn´t touch. I booted with no problem but after running "Memtest.exe" under windows for about 6 hours it came up with an error so I reset the BIOS to "Let SPD decide" and now it is back to 4, 5, 5, 15.

    I ran a different testing program called "Memtest86+" which runs from boot (not under Windows XP ) and I go another error message. This leads me to believe that changing the timing would not be a problem but I have a problem with one of my 4 Dimms that I didn´t know about.

    Any ideas on what I should do now?

    Thanks
  12. Install one DIMM at a time and run memtest86+ through a number of complete cycles for each DIMM.
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