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Thread: Finally got some RAM, TCCD no less...

  1. #1
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    Finally got some RAM, TCCD no less...

    Aftr my basic twinmos dual channel 512mb kit failed on me i have been desperately trying to get hold of some decent replacement ram. I had been patiently waiting for this ram to come into stock as its the cheapest TCCD i could find. But i got bored so i bought some corsair TCCD ram from overclockers for about £150 inc. postage. Its a lot for ram, but just at the highest end of my budget. This is the spec:

    Corsair TWINX1024-4400C25PT
    2x512mb
    ddr 550 @ 2.5 4 4 8
    ddr 400 @ 2.0 2 2 5

    Now my 3.0 prescott can clock pretty high (3.75ghz+) but the stock cooling cant cope. So until i get better cooling i have back it down to a conservative 3.51ghz with a fsb of 234mhz.

    First i put this ram in running at stock timings at 234. Then i tightened the timings to the tightest i could stably; 2 3 3 5. I got the following super pi results:

    Ram:-------Ram speed:-------Latencies:-------Super pi time:
    Twinmos----195--------------2.5 4 4 8---------41
    Corsair------234--------------2.5 4 4 8---------38
    Corsair------234--------------2.0 3 3 5---------37

    My results as they are arent very impressive as half this pc is still junk, but its the difference that important. This is an almost 10% increase in performance. I cant be bothered to test it properly with other programs, all i know is that its faster. The extra 512mb makes a huge difference to everyday running. I hope the performance increase of this ram will be even more noticeable when i get round to putting the fsb back up. Ill keep you posted.
    Last edited by Scarlet Infidel; 16-04-2005 at 11:06 AM.

  2. #2
    Ah, Mrs. Peel! mike_w's Avatar
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    If you're willing, the true test would be how much impact latencies have i.e. clock the Corsair down to the old TwinMOS speeds, take out one stick and see how it compares to the old stick.
    "Well, there was your Uncle Tiberius who died wrapped in cabbage leaves but we assumed that was a freak accident."

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    I might give that a go. Just tested at 3.6ghz:

    Corsair------240--------------2.5 3 3 6---------36s

    Any higher and the processor gets too hot. Im not even comfortable at this speed as i thnk it needs a slight voltage increase to be stable which i just cant give it at the moment.

  4. #4
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    Just done the latency test you suggested:
    Corsair------195--------------2.0 2 2 5---------37s

    So as far as super pi is concerned, latency makes a lot of difference even on an intel system. What to try next....

    Im actually quite surprised that '195mhz, 2 2 2 6' and '234mhz, 2.5 3 3 5' got exactly the same score, maybe 1:1 is overrated. Obviously this is just one test, the thing i do most is video encoding so ill have to find (any suggestions) or make a test to see what difference the ram makes in that.

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    lazy student nvening's Avatar
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    What is tccd? I have looked, but with no results
    http://search.internet.com/www.webop....webopedia.com
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    Ah, Mrs. Peel! mike_w's Avatar
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    TCCD is the chips used on memory sticks (like Winbond). It's faster than most sticks, so it any memory using TCCD comes at a premium.
    "Well, there was your Uncle Tiberius who died wrapped in cabbage leaves but we assumed that was a freak accident."

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    lazy student nvening's Avatar
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    Where does it say, could not see it in the specs imn the link at the top.
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    YUKIKAZE arthurleung's Avatar
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    • arthurleung's system
      • Motherboard:
      • Asus P5E (Rampage Formula 0902)
      • CPU:
      • Intel Core2Quad Q9550 3.6Ghz 1.2V
      • Memory:
      • A-Data DDR2-800 2x2GB CL4
      • Storage:
      • 4x1TB WD1000FYPS @ RAID5 3Ware 9500S-8 / 3x 1TB Samsung Ecogreen F2
      • Graphics card(s):
      • GeCube HD4870 512MB
      • PSU:
      • Corsair VX450
      • Case:
      • Antec P180
      • Operating System:
      • Windows Server 2008 Standard
      • Monitor(s):
      • Dell Ultrasharp 2709W + 2001FP
      • Internet:
      • Be*Unlimited 20Mbps
    Why this pair of ram if you are not going 275+ FSB?
    Workstation 1: Intel i7 950 @ 3.8Ghz / X58 / 12GB DDR3-1600 / HD4870 512MB / Antec P180
    Workstation 2: Intel C2Q Q9550 @ 3.6Ghz / X38 / 4GB DDR2-800 / 8400GS 512MB / Open Air
    Workstation 3: Intel Xeon X3350 @ 3.2Ghz / P35 / 4GB DDR2-800 / HD4770 512MB / Shuttle SP35P2
    HTPC: AMD Athlon X4 620 @ 2.6Ghz / 780G / 4GB DDR2-1000 / Antec Mini P180 White
    Mobile Workstation: Intel C2D T8300 @ 2.4Ghz / GM965 / 3GB DDR2-667 / DELL Inspiron 1525 / 6+6+9 Cell Battery

    Display (Monitor): DELL Ultrasharp 2709W + DELL Ultrasharp 2001FP
    Display (Projector): Epson TW-3500 1080p
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    Headphones: Etymotic hf2 / Ultimate Ears Triple.fi 10 Pro

    Storage: 8x2TB Hitachi @ DELL PERC 6/i RAID6 / 13TB Non-RAID Across 12 HDDs
    Consoles: PS3 Slim 120GB / Xbox 360 Arcade 20GB / PS2

  9. #9
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    Well, i know this chip can do at the very least 250mhz on stock air cooling. I will eventually move to watercooling so i wanted ram i could run at 1:1 at good timings at an unknown fsb above 250mhz. I could have maybe saved £20 and gone for pc4000 ram but then that could in future limit my processor.

    You have to remember that high performance ram such as this runs at very tight timings low speed or reasonable timings very high speed. It gives me ultimate flexibility and performance whatever speed i run it at on intel or even amd systems. Also i should be able to sell this ram on for a good price in the future if i choose to.

  10. #10
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    Quote Originally Posted by nvening
    Where does it say, could not see it in the specs imn the link at the top.
    Thanks
    The PQI ram wont say anywhere that its tccd, you have to read up enthusiast reviews who have identified it by looking at the chips and by their characteristics.

    The same goes for the corsair ram i decided to go for in the end.

  11. #11
    lazy student nvening's Avatar
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    untill DDR3 comes, also intel uses DDR2 (unless the special mobo)
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  12. #12
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    Im still using socket 478, i wanted to stick with agp and ddr.

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    • YorkieBen's system
      • Motherboard:
      • Gigabyte P35-DS3R
      • CPU:
      • C2D E4600
      • Memory:
      • 4 x 1GB PC6400 Corsair XMS
      • Graphics card(s):
      • Leadtek 8800GT
      • PSU:
      • Corsair 520W
      • Case:
      • Silverstone TJ06
      • Monitor(s):
      • Philips 20" Widescreen
      • Internet:
      • Post Office Broadband
    this site has alot of RAM and it tells you if it is TCCD or not


    http://www.pc-memory-upgrade.co.uk

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