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Thread: GA-P35-S3G BIOS for E8400 E0 OC?




  1. #1
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    Default GA-P35-S3G BIOS for E8400 E0 OC?

    Hi,

    I just put together a budget performance system based on a GA-P35-S3G and an E8400. I didn't get a choice of core when I orderred the CPU, and happened to get an E0 core, as opposed to the earlier C0 core. Now normally this would be good, but I notice from googling on OCing this mobo that generally people have only had success OCing it with F3a BIOS (eg: OC'ing Gigabyte GA-P35-S3G -**Update** - New Bios works! - OverclockersClub Forums). Problem for is that F3a is pre-E0 core support. E0 support was introduced with F4 BIOS.

    I'm starting to try OCing, and I can so far only get to 337MHz :( Beyond that it double resets the BIOS back to defaults, without getting as far as trying to start the OS. I've tried Auto settings which I thought would be fine for a mild initial test OC, and I've tried setting a variety of manual voltages and timings, and all attempts get the same result. Now I expected a few difficulties, but from previous experience OCing Northwood P4C I figured it would at least try to start the OS and BSoD, or something like that, as I approached the upper limits, not refuse to try the settings at almost no OC.

    I can post details later (when I'm back at home), but I'm just looking for basic wisdom on OCing this mobo with the E0 core CPUs. The BIOS seems very reluctant to take OC settings, and perhaps I need to find just the right ones. Or is there a particular BIOS version I need. I could try F5a I notice is available. What's the risk of trying F3a with an E8400 E0? Would my system totally fail to work, or would it be something less serious I might be able to live with.

    Also, my memory is rated to run at 2.2v to 2.4v, but this mobo only permits DDR2 OverVoltage to +0.4. Anyone know a way to get +0.6v from a GA-P35-S3G?

    I suppose my last resort would be to get a more OC friendly mobo, but I really like the feature set of the S3G - 1 PCIE, lots of PCI slots and a parallel port are just what I wanted.

    Cheers and thanx in advance, Pum.
    ---
    Mobo: Gigabyte P35-S3G + 40mm fan on MCH/Northbridge HS
    CPU: E8400 E0 (333x9) @ 337x9
    Cooling: Zalman CNPS 9700 (Core temp 43c load)
    Memory: Geil Black Dragon DDR2-PC8500C5 (1GBx2)
    Video Card: Sapphire ATI HD 4850 Dual Slot Cooler (64c load)
    Harddisk: Seagate SATA2 500GB 7200rpm 32MB cache
    Harddisk: Samsung SATA2 500GB 7200rpm 16MB cache
    CD/DVD Drive: LG GH22LP20 22X DVD+/-RW
    CRT/LCD Model: Dell 3007WFP 30" (2560x1600)
    Case: Antec Three Hundred + 2 x 120mm front fans
    PCI card: Cheapo sound card to provide game port only
    PCI card: Cheapo Firewire
    PSU: Corsair TX 650W
    OS: WinXP
    Last edited by Pum; 11-24-2008 at 09:58 PM.

  2. #2
    Lsdmeasap's Avatar
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    Default Re: GA-P35-S3G BIOS for E8400 E0 OC?

    I would try F4 or F5a, since your CPU is not supported with F3a it may or may not work, and if it does it may not work properly.

    That thread was likely made before much F4 and F5a testing was done, and I bet those users are now on the newer BIOS's anyway.

    Your issues are likely just due to incorrect settings, I can for sure help you

    That is only the Max Warrantied Voltage and is likely not needed at all until you go past 1066, Anything over 2.1V I suggest always to have a fan on the ram. I see that ram will run 1066 at 2.0V so you should be fine.

    Give me your settings you are using that fail and where you want to go and I will advise back >>>>

    This is Just a template I use to ask people their settings, pay no attention to the numbers in it, replace with yours

    Code:
    Robust Graphics Booster___________ [Auto]
    CPU Clock Ratio ____________ [8] 
    Fine Clock Ratio ____________[0.5]
    CPU Host Clock Control_ [Enabled]
    CPU Host Frequency (MHz)__________ [450] 
    PCI Express Frequency (Mhz)_______ [100]
    C.I.A. 2__________________________ [Disabled]
    System Memory Multiplier (SPD)____ [2.00]
    DRAM Timing Selectable_______ SPD __ [Manual]
    
    Performance Enhance = [Standard]
    
    CAS Latency Time________________ ?
    Dram RAS# to CAS# Delay_________ ?
    Dram RAS# Precharge Delay_______?
    Precharge Delay (tRAS)__________ ?
    
    ACT to ACT Delay (tRRD)_________ ?
    Rank Write to READ Delay________ ?
    Write to Precharge Delay_________ ?
    Refresh to ACT Delay______________ ?
    Read to Precharge Delay__________ ?
    Static tRead Value_______________
    Static tRead Phase Adjust________ [Auto]
    
    CPU/PCIEX Clock Driving Control [800mV]
    CPU Clock Skew Control [normal]
    GMCH Clock Skew Control [Normal]
    
    System Voltage Control____ [Manual]
    DDR2 OverVoltage Control__ [+0.300V] 
    PCI-E OverVoltage Control_ [+0.1V] 
    FSB OverVoltage Control___ [+0.1V] 
    (G)MCH OverVoltage Control [+0.1V] 
    CPU Voltage Control_______ [1.25]
    
    Limit CPUID Max. to 3.....................: [Disabled]
    No-Execute Memory Protect............: [Enabled]
    CPU Enhanced Halt (C1E)................: [Disabled]
    C2/C2E State Support....................: [Disabled]
    x C4/C4E State Support..................: [Disabled]
    CPU Thermal Monitor 2(TM2) ...........: [Enabled]
    CPU EIST Function.........................: [Disabled]
    Virtualization Technology................: [Disabled] Enabled if you use Vmware/Virtual PC
    
    Integrated Peripherals
    Legacy USB Storage Detect___________________[Disabled] *Note* Must be enabled to flash from USB

  3. #3
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    Default Re: GA-P35-S3G BIOS for E8400 E0 OC?

    Hi Lsdmeasap, I sure hope you can help. Here's the settings I used successfully to get a massive 1% OC

    <link rel="File-List" href="file:///C:%5CDOCUME%7E1%5CPum%5CLOCALS%7E1%5CTemp%5Cmsohtm l1%5C01%5Cclip_filelist.xml"><!--[if gte mso 9]><xml> <w:WordDocument> <w:View>Normal</w:View> <w:Zoom>0</w:Zoom> <w:Compatibility> <w:BreakWrappedTables/> <w:SnapToGridInCell/> <w:WrapTextWithPunct/> <w:UseAsianBreakRules/> </w:Compatibility> <w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel> </w:WordDocument> </xml><![endif]--><style> <!-- /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-parent:""; margin:0cm; margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";} @page Section1 {size:612.0pt 792.0pt; margin:72.0pt 90.0pt 72.0pt 90.0pt; mso-header-margin:36.0pt; mso-footer-margin:36.0pt; mso-paper-source:0;} div.Section1 {page:Section1;} --> </style><!--[if gte mso 10]> <style> /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman";} </style> <![endif]-->
    Code:
      Robust Graphics Booster      Auto 
      CPU Multi                    9 
      CPU Host MHz                 337 
      BIOS reported CPU GHz        3.03 
      PCI Express Frequency (Mhz)  100 
      Perf Enhance                 Std 
      Mem multi                    2 
      Mem MHz                      674 
      Mem Timing                   Man 
      CAS Latency                  6 
      DRAM RAS# to CAS# Delay      6 
      DRAM RAS# Precharge Delay    6 
      Precharge delay (tRAS)       18 
      ACT to ACT Delay(tRRD)       6 
      Write to READ Delay          8 
      Write to Pre-charge Delay    10 
      Refresh to ACT Delay         44 
      Read to Precharge Delay      7 
      Static tRead Value           15 
      Static tRead Phase Adjust    Aut 
      System Voltage Control       Man 
      DDR2 OverVolts               0.2 
      FSB OverVolts                0.1 
      FSB DeOverVolts              Norm 
      (G)MCH OverVolts             0.1 
      CPU GTLREF Volts             0.636 
      CPU Volts                    1.25000 
      Limit CPUID Max to 3         Dis 
      No-Execute Memory Protect    Ena 
      CPU Enhanced Halt (C1E)      Dis 
      CPU Thermal Monitor 2(TM2)   Ena 
      CPU EIST Function            Dis 
      Virtualization Technology    Dis 
      Legacy USB Storage Detect    Dis
    I then changed only the CPU Host MHz to just 340, and it double resets back to defaults

    The mem timings are very loose to try to maximise chances of success.

  4. #4
    Lsdmeasap's Avatar
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    Default Re: GA-P35-S3G BIOS for E8400 E0 OC?

    Try this for 3.6, not sure what you want to reach so I thought that may be acceptable.

    Robust Graphics Booster Auto
    CPU Multi 9
    CPU Host MHz 402
    BIOS reported CPU GHz 3.618
    PCI Express Frequency (Mhz) 100
    Perf Enhance Std
    Mem multi 2.40
    Mem MHz 900
    Mem Timing Man
    CAS Latency 5
    DRAM RAS# to CAS# Delay 5
    DRAM RAS# Precharge Delay 5
    Precharge delay (tRAS) 15
    ACT to ACT Delay(tRRD) 6 << may be to high try 4-5 for now
    Write to READ Delay 8
    Write to Pre-charge Delay 10
    Refresh to ACT Delay 44
    Read to Precharge Delay 7
    Static tRead Value 15 << may be too high causing issues, use 10-12
    Static tRead Phase Adjust Aut
    System Voltage Control Man
    DDR2 OverVolts 0.2 << +.4 =2.2
    FSB OverVolts 0.1
    FSB DeOverVolts Norm
    (G)MCH OverVolts 0.1
    CPU GTLREF Volts 0.636 << Auto
    CPU Volts 1.25000 << 1.25-1.35 or more, this could have been your issue with the above, what does this give you for actual in windows? it is normally less then what you set in the BIOS, you can check with CPU-z

  5. #5
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    Default Re: GA-P35-S3G BIOS for E8400 E0 OC?

    Cheers, I'll give those settings a try when I'm back home from work later.
    Is there a particular reason why you recommend "CPU Host MHz 402" rather than 400 or any other nearby value? Are certain multiples of something better, or something like that?

    BTW, my goal is 4GHz stable, or whatever I can get, for occasional video rendering or other compute intensive apps (like alife simulation).
    Last edited by Pum; 11-25-2008 at 06:32 PM.

  6. #6
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    Default Re: GA-P35-S3G BIOS for E8400 E0 OC?

    Yes, 400 is right on the 333/400 strap line and using it may cause issues. Just best to use 399 or 401 or so

    4ghz eh, should be easy with your CPU as long as you have good cooling

  7. #7
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    Default Re: GA-P35-S3G BIOS for E8400 E0 OC?

    Didn't have much time yesterday evening, but got a chance to try your suggested settings. Failed with same problem - double reset back to defaults The BIOS appears to start trying to POST, but fails almost immediately. My guess is that it is checking the new settings and sees something it doesn't like, but is being way too fussy about what it will accept

    Specific settings I tried:

    Robust Graphics Booster_____Auto
    CPU Multi_____9
    CPU Host MHz_____402
    BIOS reported CPU GHz_____3.62
    PCI Express Frequency (Mhz)_____100
    Perf Enhance_____Std
    Mem multi_____2.4
    BIOS reported Mem MHz_____964.8
    Mem Timing_____Man
    CAS Latency_____5
    DRAM RAS# to CAS# Delay_____5
    DRAM RAS# Precharge Delay_____5
    Precharge delay (tRAS)_____15
    ACT to ACT Delay(tRRD)_____4
    Write to READ Delay_____8
    Write to Pre-charge Delay_____10
    Refresh to ACT Delay_____44
    Read to Precharge Delay_____7
    Static tRead Value_____11
    Static tRead Phase Adjust_____Aut
    System Voltage Control_____Man
    DDR2 OverVolts_____0.4
    FSB OverVolts_____0.1
    FSB DeOverVolts_____Norm
    (G)MCH OverVolts_____0.1
    CPU GTLREF Volts_____0.636
    CPU Volts_____1.30000
    Limit CPUID Max to 3_____Dis
    No-Execute Memory Protect_____Ena
    CPU Enhanced Halt (C1E)_____Dis
    CPU Thermal Monitor 2(TM2) _____Ena
    CPU EIST Function_____Dis
    Virtualization Technology_____Dis
    Legacy USB Storage Detect_____Dis

    Any ideas?

  8. #8
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    Default Re: GA-P35-S3G BIOS for E8400 E0 OC?

    Try more CPU Volts, that may not be enough at all with vdrop

    A double reboot is normal, triple is not. Also set your ram to 555-18 for not to further rule that out and put your ref voltage in Auto for now as well and maybe add more to FSB voltage

  9. #9
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    Default Re: GA-P35-S3G BIOS for E8400 E0 OC?

    I'll hopefully get more time to test this evening.

    Re double/triple reboot:
    I set OC values in BIOS, exit and save.
    It turns off for about 2 secs and back on.
    Tries to POST for about 1 sec.
    Turns off for about 2 secs and back on with default (non-OC) settings.

  10. #10
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    Default Re: GA-P35-S3G BIOS for E8400 E0 OC?

    Now here's a thing. I've tried beseeching the lord BIOS with quite a few different combinations of mystic numerals, and got nowhere. So, I tried the much derided EasyTune software that came on the CD with the mobo. Wonders of wonders, it went up to 4.1GHz with no trouble at all (CPU 456x9 = 4104MHz, Mem 456x2.4 = 1094MHz). I basically wanted to see if it made any difference, and if so then explore the limitations of the system. Well I didn't have time to reach the limitations yet, but at least it proves that the hardware is capable of the speeds I'm aiming for. Here's some screenshots when I was running at 4GHz:






    I must admit that running EasyTune felt dirty somehow, and it wasn't "proper" OCing , but if it's stupid and it works then it ain't stupid! Anyway, it's the best I've got for now.

    I didn't get time to try the OC from the BIOS with more vcore (was 1.3v), but note that the EasyTune OC was running at less volts (it ran at 1.3v too, but I tried dropping it in EasyTune.) Also, notice in CPU-Z that the memory seems to be running happily at 5-5-5-15.

    Note also that PCIE freq and volts do not appear in EasyTune - I guess the APIs that EasyTune uses for these features are missing in the chipset. In the BIOS I cannot change PCIE volts either, although PCIE freq is available.

    More testing when I get some more time.

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