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Thread: X48-DS5 Moderate O/C




  1. #11
    Join Date
    Dec 2008
    Location
    Australia
    Posts
    1,183

    Default Re: X48-DS5 Moderate O/C

    lol i tried one of those bodge job with a real old mini fan that sounded like it did 10,000 RPM but boy did it keep the silent pipe cooling cold. But it didnt help my problem
    Lian Li PC-7F Chassis Black
    Gigabyte GA-X48-DS5 MB (Rev. 1.1 BIOS v.F8c)
    Gigabyte ODIN GT 800Watt PSU
    Intel Core2Quad Q9550 E0 @ 3.4Ghz @ 1.25vcore
    Noctua NH-U12P + AS5
    G.Skill 2X2GB F2-8500CL5D-4GBPK
    2 X ATI Radeon HD4850 512MB (Crossfired)
    Dell Ultrasharp 2209WA IPS
    2 X 1TB Seagate 7200.11 in RAID 1
    Pioneer DVR216 SATA DVD MultiDrive
    Windows 7 Ultimate X64 RC1 (Build 7232)
    ------------------------------------------------
    Gigabyte Poseidon Chassis
    Gigabyte GA-EP45-DS3 (Rev. 1.0 BIOS v.F9)
    ASUS Artic Square CPU Cooling with AS5
    Thermaltake TR2 RX 550Watt PSU
    Intel Core2Duo E8500 E0 @ 3.8Ghz @ 1.25vcore
    Corsair 2 X 2Gb XMS2 PC6400C5 DDR2
    NVIDIA GeForce 8800GT 512MB
    1 X Seagate 1TB 7200.12 + Seagate 750GB 7211.11
    Sony SATA DVD MultiDrive
    Windows 7 Ultimate X64 RC1 (Build 7232)
    ------------------------------------------------

  2. #12
    Join Date
    Jan 2009
    Posts
    13

    Default Re: X48-DS5 Moderate O/C

    Yeah, I've still got that problem. I've upped the voltages to +0.2V for the FSB and MCH and the CPU's running at 1.275V but it still drops off. I'm tempted to go to +0.25V on each of the FSB and MCH as Anandtech reckon that the FSB voltages on X48's need to be pretty high to get a stable overclock: AnandTech: The Gigabyte GA-X48T-DQ6 - Redefining the High End?

    Anyway, I have to go to work on Australia Day so I see how it goes when I get back :(

  3. #13
    Join Date
    Apr 2008
    Posts
    942

    Default Re: X48-DS5 Moderate O/C

    In your first post, with the template, you ay your Ram is at 5-5-5-15 @ 2.1volts, yet on the template you indicate 5-5-5-18 at +0.2volts (2.0v), which one is it?
    Try and increase tRFC too, to say 60
    Also you can increase tRD to check stability, although you will reduce memory throughput. Good for troubleshooting though.

    I had some strange issues with Vista64, which MCH and FSB made no difference to. It seems to be something with Vista's ASLR finding fault with less than perfectly setup RAM. In the end I had to increase my Ram voltage to it's maximum allowable rating.
    Incidently it didn't fail with memtest at a lower voltage.

    One test that i found quickly highlighted Vista problems and I think is a fantastic tool, is the X3 TC Rolling Demo Benchmark by Egosoft. It may help to speed up your fault finding. You don't need to sign up to anything etc.

    http://www.egosoft.com/download/x3tc...en.php?list=92

    The demo takes around 5 minutes, but steadily per scene increments the stress on the PC.
    It doesn't tax a specific item like the CPU to a level prime95 will, but it will simultaneously, stress CPU, Memory, NB and Video card, just like 3d game will.

    Edit:

    Just noticed that you say what the RAM is rated at, rather than there being a conflict - sorry

    I would try the Ram at 2.1volts (if thats the maximum allowable under warranty)
    Also change everything back in that voltage section to Normal.
    Last edited by VorLonUK; 01-26-2009 at 08:12 AM.
    GA-P35C-DS3R Rev2.0 F11 bios, E8200 (@3.0Ghz), OCZ DDR3 PC3-10666 Reaper 4GB (@1200Mhz), Xonar D1, 8800GTS 512, Corsair HX520 (Single 12volt line, Max 40A), WDC 3200aaks/5000aaks in AHCI mode, Vista 64 Premium.

  4. #14
    Join Date
    Jan 2009
    Posts
    13

    Default Re: X48-DS5 Moderate O/C

    Cheers for the reply. I just got back from work and am about to go to sleep, so I'll give it a go tomorrow night. Yeah I've got to +0.25V as the BIOS actually reports the RAM was at 2.03V at +0.2V so the voltage option seemed to be a little understated. How do manufacturers tell what voltage you have gone to? I can't imagine I will fry my RAM at all, although I am curious that it is warrantied up to a certain voltage.

    You are targeting the memory with most of your ideas - do you think this is where the problem most likely lies? I haven't done a Memtest at all as the boot CD I made up didn't seemed to work; I might burn another one and give it another go.
    Last edited by Colostimos; 01-27-2009 at 04:17 PM.

  5. #15
    Join Date
    Jan 2009
    Posts
    13

    Default Re: X48-DS5 Moderate O/C

    Happy times - it appears to work. I'm not getting my hopes up and saying its fixed, however I added another 0.05V to the RAM and took 0.05V off the MCH and FSB. CPU is now at 1.265V. I was reluctant to boost the RAM up to +0.30V as the motherboard indicates a bias of an extra 0.03V (so if its set to +0.30V it reads back as +2.13V).

    But it works, the RAM is still cool enough to hold my finger on indefinitely and I just played GTA4 for an hour without a crash (as compared to 8 minutes at best). I'll keep you posted. Thanks VorLonUK and Nimrod for your help.

  6. #16
    Join Date
    Dec 2008
    Location
    Australia
    Posts
    1,183

    Default Re: X48-DS5 Moderate O/C

    Good news mate. I hope your problems are over. Thers just no fun in these problems. Im really hoping I get my replacement MB and RAM this week so I can also bask in the joy
    Lian Li PC-7F Chassis Black
    Gigabyte GA-X48-DS5 MB (Rev. 1.1 BIOS v.F8c)
    Gigabyte ODIN GT 800Watt PSU
    Intel Core2Quad Q9550 E0 @ 3.4Ghz @ 1.25vcore
    Noctua NH-U12P + AS5
    G.Skill 2X2GB F2-8500CL5D-4GBPK
    2 X ATI Radeon HD4850 512MB (Crossfired)
    Dell Ultrasharp 2209WA IPS
    2 X 1TB Seagate 7200.11 in RAID 1
    Pioneer DVR216 SATA DVD MultiDrive
    Windows 7 Ultimate X64 RC1 (Build 7232)
    ------------------------------------------------
    Gigabyte Poseidon Chassis
    Gigabyte GA-EP45-DS3 (Rev. 1.0 BIOS v.F9)
    ASUS Artic Square CPU Cooling with AS5
    Thermaltake TR2 RX 550Watt PSU
    Intel Core2Duo E8500 E0 @ 3.8Ghz @ 1.25vcore
    Corsair 2 X 2Gb XMS2 PC6400C5 DDR2
    NVIDIA GeForce 8800GT 512MB
    1 X Seagate 1TB 7200.12 + Seagate 750GB 7211.11
    Sony SATA DVD MultiDrive
    Windows 7 Ultimate X64 RC1 (Build 7232)
    ------------------------------------------------

  7. #17
    Join Date
    Jan 2009
    Posts
    13

    Default Re: X48-DS5 Moderate O/C

    Yep, I'm now where I want to be at 3.40GHz with my RAM at its max of 1066MHz. I also noticed that the RAM dips to 2.11V under load down from 2.13V at idle. I've heard of Vdroop for CPUs, not RAM though.

  8. #18
    Join Date
    Apr 2008
    Posts
    942

    Default Re: X48-DS5 Moderate O/C

    Quote Originally Posted by Colostimos View Post
    Yep, I'm now where I want to be at 3.40GHz with my RAM at its max of 1066MHz. I also noticed that the RAM dips to 2.11V under load down from 2.13V at idle. I've heard of Vdroop for CPUs, not RAM though.
    Almost anything electrical/electronic will have volt drop, where there's a load and an imperfect conductor.
    If we could afford sealed solid silver print (silver traces) then we'd probably minimise volt drop. Although the improvement wouldn't justify the costs.
    GA-P35C-DS3R Rev2.0 F11 bios, E8200 (@3.0Ghz), OCZ DDR3 PC3-10666 Reaper 4GB (@1200Mhz), Xonar D1, 8800GTS 512, Corsair HX520 (Single 12volt line, Max 40A), WDC 3200aaks/5000aaks in AHCI mode, Vista 64 Premium.

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