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Thread: Crossfire causing GS-X48-DS5 to lockup




  1. #1
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    Default Crossfire causing GS-X48-DS5 to lockup

    Issue:
    Running crossfire on OC'ed system appears to cause system to lockup during gaming or testing (Prime95) otherwise system runs stable when not under load.
    Breakdown:
    1)Running system OC'ed with single card runs fine no issues. Both cards have been tested seperate and no issues each runs fine.
    2)Running system at stock speeds with crossfire has no issues.
    3)Running system OC'ed with crossfire no gaming/no testing is stable just basic internet browsing etc.
    4)Running system OC'ed with crossfire "enabled" during gaming/testing causes lockup within 1 to 10 minutes.
    5)Running system OC'ed with crossfire "disabled" during gaming/testing casues lockup within 1 to 10 minutes.
    System:
    E8400 Core 2 Duo 3.0Ghz
    Gigabyte GS-X48-DS5 mobo
    Corsair CMPSU-750TX 750Watt PSU (crossfire/sli ready)
    OCZ Reaper OCZ2RPR10664GK 4GB Ram PC-8500 1066 MHz 5-5-5-15 2.1v-2.2v
    HIS H487QT1GP Radeon HD 4870 (both cards are exact same models) 1GB GDDR5
    System has good cooling
    Drivers/Bios:
    Current Bios F8C
    Most current AMD Drivers 12.2
    Win7 64 Bit (Also have tried Vista 64 Bit and XP 32 Bit)
    All other drivers should be current
    Overclock:
    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: Auto
    CPU Clock Ratio ..........................: 9x
    Fine CPU Clock Ratio.....................: +0.0
    CPU Frequency ...........................: 3.00Ghz(400x9)
    CPU Host Clock Control..................: [Enabled]
    CPU Host Frequency (Mhz) ............: 400Mhz (or lower no increase works)
    PCI Express Frequency (Mhz) .........: 100
    C.I.A.2 .................................:[Disabled]
    Performance Enhance...................: [Standard]
    System Memory Multiplier ..............: 2.66D or 2.00D (tried both)
    Memory Frequency (Mhz) ..............: 1066Mhz or 800MHz (tried both)
    DRAM Timing Selectable ................: [Manual]
    Standard Timing Control
    CAS Latency Time........................5
    DRAM RAS# to CAS# Delay...........5
    DRAM RAS# Precharge..................5
    tRAS...........................................15 or 18 (tried both)
    Advanced Timing Control
    ACT to ACT Delay(tRRD)................(Auto)
    Rank Write To READ Delay..............(Auto)
    Write To Precharge Delay...............(Auto)
    Refresh to ACT Delay.....................(Auto)
    Read to Precharge Delay.................(Auto)
    Static tRead Value.........................(Auto)
    Static tRead Phase Adjust...............(Auto)
    Command Rate(CMD)......................(Auto)
    Clock Driving & Skew Control
    CPU/PCIEX Clock Driving Control........[800mV]
    CPU Clock Skew Control...................[Normal]
    (G)MCH Clock Skew Control..............[Normal]
    System Voltage Optimized
    System Voltage control....................[Manual]
    DDR2 OverVoltage Control.................[+0.20V or +3.0V] tried both
    PCI-E OverVoltage Control................[Normal or +0.10V] tried both
    FSB OverVoltage Control...................[+0.10V]
    (G)MCH OverVoltage Control..............[+0.100V thru +0.200V] anything over is unstable (+0.020V not very stable)
    Loadline Calibration..........................[Auto]
    CPU Voltage Control.........................[1.2500V thru 1.2750V] tested all voltages
    Normal CPU Vcore............................1.25000v
    Advanced Settings
    HDD S.M.A.R.T. Capability...............:[Disabled]
    Limit CPUID Max. to 3.....................: [Disabled]
    No-Execute Memory Protect............: [Enabled]
    CPU Enhanced Halt (C1E)................: [Disabled]
    CPU Thermal Monitor 2(TM2) ...........: [Enabled]
    CPU EIST Function.........................: [Disabled]
    Virtualization Technology.................:[Disabled]
    Full Screen LOGO Show....................:[Disabled]
    Init Display First..............................:[PCI or PEG] tried both
    All other settings standard but a few fan settings.
    I have tested the memory with MemTest and no issues. Temperatures are all within normal ranges even under load. Graphics cards are not OC'ed. When running Prime95 the "Small FFT's" appears to be stable but not always. Running "In Place Large FFT's and Blend" cause lockups within minutes. So the system is stable with OC but any kind of load and it locks-up. I can usually play WoW for about 5 to 10 minutes before it locks up and i have to reboot. The problem seems to be centered around the crossfire for some reason it hates having it in there and running in crossfire. Regardless if crossfire is enabled or disabled.
    So any help would be great because i have run out of ideas. I have done some research and it appears to be somewhat common problem. People have good stable OC the add 2nd card and crossfire and the thing goes haywire. I have yet to see a solution. Any kind of OC no matter how small and the system becomes unstable.

  2. #2
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: Crossfire causing GS-X48-DS5 to lockup

    MCH voltage is often the key to this, and since you have 4GB +0.2-0.3 would already be the norm. And since you have issues at or above +0.2, I think the main issue here might be heat.

    Can you please try setting a 120mm fan on the top of your graphics card pointing at/into the NB heatsink, and then test again at MCH +0.2 and +0.25-0.3 if needed (If the Fan doesn't help stop this at +0.2)

    Blend failure means the system isn't stable for sure, so this is something you need to look into. Can you please post a screenshot of Memset, so we can see what Auto for all those advanced memory timings is giving you, thanks!
    Memset - Tweakers.fr

    Also, what BIOS version are you using (F8h is the latest)?

  3. #3
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    Default Re: Crossfire causing GS-X48-DS5 to lockup

    Quote Originally Posted by Lsdmeasap View Post
    MCH voltage is often the key to this, and since you have 4GB +0.2-0.3 would already be the norm. And since you have issues at or above +0.2, I think the main issue here might be heat.

    Can you please try setting a 120mm fan on the top of your graphics card pointing at/into the NB heatsink, and then test again at MCH +0.2 and +0.25-0.3 if needed (If the Fan doesn't help stop this at +0.2)

    Blend failure means the system isn't stable for sure, so this is something you need to look into. Can you please post a screenshot of Memset, so we can see what Auto for all those advanced memory timings is giving you, thanks!
    Memset - Tweakers.fr

    Also, what BIOS version are you using (F8h is the latest)?
    My BIOS version is F8C which i think is the most current according to Gigabyte site it is.

    I kind already have a fan firing down near the northbridge it hits the heatpipes on the graphics cards and part of the northbridge. I had overlooked the fact that the board doesnt have a fan on the northbridge but has heatpipe system instead. I made a few modifications today by removing the name plate on the northbridge heatsink, lifting some of the fins to add better air flow and then added a fan. Hopefully that will reduce heat issues if they arise at the northbridge.

    I also had some success with a tweakin some setting and getting it stable for 30 minutes running prime95 before i got tired of messing with it. I went in and changed 1 setting at a time with the only constant being Host Freq. at 400Mhz, Memory Multi at 2.00D and everything crashed but when i added +.100V to the G[MCH] (and left all other voltages at stock) it appeared stable.

    Here is what was working with little testing:

    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: Auto
    CPU Clock Ratio ..........................: 9x
    Fine CPU Clock Ratio.....................: +0.0
    CPU Frequency ...........................: 3.00Ghz(400x9)
    CPU Host Clock Control..................: [Enabled]
    CPU Host Frequency (Mhz) ............: 400Mhz (or lower no increase works)
    PCI Express Frequency (Mhz) .........: Auto
    C.I.A.2 .................................:[Disabled]
    Performance Enhance...................: [Standard]
    System Memory Multiplier ..............: 2.00D
    Memory Frequency (Mhz) ..............: 800MHz
    DRAM Timing Selectable ................: [Auto]
    Standard Timing Control
    CAS Latency Time........................ Auto
    DRAM RAS# to CAS# Delay........... Auto
    DRAM RAS# Precharge.................. Auto
    tRAS........................................... Auto
    Advanced Timing Control
    ACT to ACT Delay(tRRD)................(Auto)
    Rank Write To READ Delay..............(Auto)
    Write To Precharge Delay...............(Auto)
    Refresh to ACT Delay.....................(Auto)
    Read to Precharge Delay.................(Auto)
    Static tRead Value.........................(Auto)
    Static tRead Phase Adjust...............(Auto)
    Command Rate(CMD)......................(Auto)
    Clock Driving & Skew Control
    CPU/PCIEX Clock Driving Control........[800mV]
    CPU Clock Skew Control...................[Normal]
    (G)MCH Clock Skew Control..............[Normal]
    System Voltage Optimized
    System Voltage control....................[Manual]
    DDR2 OverVoltage Control.................[Normal]
    PCI-E OverVoltage Control................[Normal]
    FSB OverVoltage Control...................[Normal]
    (G)MCH OverVoltage Control..............[+0.100V]
    Loadline Calibration..........................[Auto]
    CPU Voltage Control.........................[Normal]
    Normal CPU Vcore............................1.25000v
    Advanced Settings
    HDD S.M.A.R.T. Capability...............:[Disabled]
    Limit CPUID Max. to 3.....................: [Disabled]
    No-Execute Memory Protect............: [Enabled]
    CPU Enhanced Halt (C1E)................: [Disabled]
    CPU Thermal Monitor 2(TM2) ...........: [Enabled]
    CPU EIST Function.........................: [Disabled]
    Virtualization Technology.................:[Disabled]
    Full Screen LOGO Show....................:[Disabled]
    Init Display First..............................:[PEG]

    Here are Memset Pics @ 2.00D (800mhz) and 2.66D (1066mhz)





  4. #4
    Lsdmeasap's Avatar
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    Default Re: Crossfire causing GS-X48-DS5 to lockup

    Thanks! I'd suggest the BIOS I mentioned, you can get it here
    http://forums.tweaktown.com/gigabyte...beta-bios.html

    As for what you did to the NB today, you may want to pull it off there now and redo the thermal paste, as you likely broke it's seal/connection while you removed the plate. Plus putting on new paste would be better for temps anyway, just be sure you use non-conductive paste, if you need to wait and order some to do this I'd suggest MX-2 or TX-2 paste.

    As for your settings above, you need to set the ram voltage, unless it's rated at 1.8V

    Very odd to see, the board is giving looser timings for advanced settings when at 800Mhz vs what it gives you are 1066mhz?

    Please try setting all those to the following, starting with the higher values and then you can lower later one by one testing as you go

    Advanced Timing Control --- (Set higher first!)
    ACT to ACT Delay(tRRD)................ 3-4
    Rank Write To READ Delay.............. 3-6
    Write To Precharge Delay............... 3/4-10
    Refresh to ACT Delay..................... 52-62
    Read to Precharge Delay................. 3-5
    Static tRead Value......................... 6/7-9
    Static tRead Phase Adjust...............(Auto) Always
    Command Rate(CMD)...................... 2T

    Also, use 401 FSB instead of 400, so you are not right on the strap line as this can be iffy sometimes.

  5. #5
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    Default Re: Crossfire causing GS-X48-DS5 to lockup

    Quote Originally Posted by Lsdmeasap View Post
    Thanks! I'd suggest the BIOS I mentioned, you can get it here
    http://forums.tweaktown.com/gigabyte...beta-bios.html

    As for what you did to the NB today, you may want to pull it off there now and redo the thermal paste, as you likely broke it's seal/connection while you removed the plate. Plus putting on new paste would be better for temps anyway, just be sure you use non-conductive paste, if you need to wait and order some to do this I'd suggest MX-2 or TX-2 paste.

    As for your settings above, you need to set the ram voltage, unless it's rated at 1.8V

    Very odd to see, the board is giving looser timings for advanced settings when at 800Mhz vs what it gives you are 1066mhz?

    Please try setting all those to the following, starting with the higher values and then you can lower later one by one testing as you go

    Advanced Timing Control --- (Set higher first!)
    ACT to ACT Delay(tRRD)................ 3-4
    Rank Write To READ Delay.............. 3-6
    Write To Precharge Delay............... 3/4-10
    Refresh to ACT Delay..................... 52-62
    Read to Precharge Delay................. 3-5
    Static tRead Value......................... 6/7-9
    Static tRead Phase Adjust...............(Auto) Always
    Command Rate(CMD)...................... 2T

    Also, use 401 FSB instead of 400, so you are not right on the strap line as this can be iffy sometimes.
    Im going to start messing around with the timings and see what happens. The ram rated voltage is 2.1V to 2.3V. If its running at 800MHZ can the ram voltage be set lower like the stock 1.8V, it seems to run fine at 1.8V @ 800MHZ. Doing some diggin around it seems getting this ram to run at the rated 1066MHZ can be an issue.

    As far as the Northbridge goes i didnt remove the entire heatpipe. The heatsink above the NB has a copper coated nameplate that says "SILENTPIPE" glued to the main heatsink. I popped that off because it was flat and blocked air flow down the heatsink. But when you take it off the surface under it is flat also. The flat surface is made up of the coppper fins of the heat sink and they can be pried up and folded over to allow better air flow down the heatsink. I pried up every 3rd one and then my old MSI board had a NB fan with a bracket that fit right on top (i took a few pics if anybody was interested in seeing).

    Adding this fan to the Northbridge has solved alot of issues becaue i have been able clock it at 3.6Ghz with the memory at 800Mhz (1066Mhz was still crashing) with crossfire enabled. It was something i never thought of until your first post mentioned it. So THANKS!!! I still have some fine tuning to do but i think i am on my way. If others are having any issues with the GA-X48-DS5 board overclock wise i would recommend adding a fan to the NB. I woud still like to know why crossfire was casuing so much heat at the NB it was the variable that seemed to be the issue.

  6. #6
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    Default Re: Crossfire causing GS-X48-DS5 to lockup

    Ahh ya, if it's rated 2.1-2.3 that means some passed spec at 2.1 but others required 2.3V, so it all depends on how good the kit you have runs at spec. You could drop the memory speed and loosen timings, that way it's out of the way and not part of this issue, so you can see if you can resolve the Xfire stability problems first, before bringing memory back into the picture. You'll still likely need to tweak MCH voltage though, just due to the amount of memory installed.

    I know what you meant about the NB, I was just saying you may have unknowingly moved it a little bit while you were bending and prying the cover, and the stock paste is thick brittle cement like crap under there anyway. So I mean you could have broke it's original seal, and it's a poor paste anyway, so it would be best to replace it no matter what.

    So, you solved the crossfire issue basically now? If so, and it sounds like it, that's great to hear! I'd still order some paste once you have some spare $$, and redo the paste under the NB.

    Crossfire adds heat to the NB two ways, one by making the NB work harder itself, and two by all the rising heat from two graphics cards. Replace that past and you'll be a much better spot! Use TX-2 or MX-2, those are always what I suggest for bare chips with metal connections all around them!

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