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Thread: Looking to fine tune E8500 with GA-EP45-UD3R




  1. #1

    Default Looking to fine tune E8500 with GA-EP45-UD3R

    I am looking for suggestions to fine tune the bios. I am running an E8500 (E0) currently running 500 fsb at 4.0 Ghz. I am using GSkill F2-8000CL5D-4GBPQ 2x2048mb at 5-5-5-15 at 2.1 volts. Here are my bios settings:

    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: Turbo
    CPU Clock Ratio ..........................: 8
    Fine CPU Clock Ratio.....................:.0
    CPU Frequency ...........................: 4.00Ghz

    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control..................: [Enabled]
    CPU Host Frequency (Mhz) ............: 500
    PCI Express Frequency (Mhz) .........:Set to 100 (Currently set to auto, set to 100 and the system didnt boot, dont know if this is the culprit)
    C.I.A.2 .................................:[Disabled]

    Advanced Clock Control [Press Enter]
    CPU Clock Drive...........................: 800
    PCI Express Clock Drive.................: 900
    CPU Clock Skew (ps)....................: 0
    MCH Clock Skew (ps)...................: 0

    DRAM Performance Control
    Performance Enhance...................: [TURBO]
    Extreme Memory Profile (X.M.P.).....: [Auto]
    (G)MCH Frequency Latch...............: [Auto]
    System Memory Multiplier ..............: 2.00B
    Memory Frequency (Mhz) ..............: 1000
    DRAM Timing Selectable ................: [Manual]
    Standard Timing Control
    CAS Latency Time........................ 5
    tRCD ......................................... 5
    tRP'........................................... 5
    tRAS.......................................... 15
    Advanced Timing Control
    tRRD........................................... Auto
    tWTR.......................................... Auto
    tWR............................................ Auto
    tRFC........................................... Auto
    tRTP........................................... Auto
    Command Rate (CMD) ....................: Auto
    Driving Strength Profiles
    Driving Strength ............................
    Channel A
    Static tRead Value.........................: Auto
    tRD Phase0 Adjustment...................:<<< Leave for all below as well
    tRD Phase1 Adjustment...................:Auto
    tRD Phase2 Adjustment .................:Auto
    tRD Phase3 Adjustment..................:Auto
    Trd2rd(Different Rank)....................:Auto
    Twr2wr(Different Rank)...................:Auto
    Twr2rd(Different Rank)...................:Auto
    Trd2wr(Same/Diff Rank)..................:Auto
    Dimm1 Clock Skew Control...............:Auto ps
    Dimm2 Clock Skew Control...............:Auto ps
    Channel B
    Static tRead Value.........................: Auto
    tRD Phase0 Adjustment...................:<<< Leave for all below as well
    tRD Phase1 Adjustment...................:Auto
    tRD Phase2 Adjustment .................:Auto
    tRD Phase3 Adjustment..................:Auto
    Trd2rd(Different Rank)....................:Auto
    Twr2wr(Different Rank)...................:Auto
    Twr2rd(Different Rank)...................:Auto
    Trd2wr(Same/Diff Rank)..................:Auto
    Dimm1 Clock Skew Control...............:Auto ps
    Dimm2 Clock Skew Control...............:Auto ps
    Motherboard Voltage Control
    Voltage Type.………... Manual
    CPU
    CPU Vcore….……….........................: 1.24375
    CPU Termination…..... 1.200V*.......: Auto (tried 1.2 but this was also a setting that did not allow to boot)
    CPU PLL…………………....1.500V*.......: Auto (tried 1.5, another possible culpirit)
    CPU Referen.…………....0.755V*.......: Auto
    CPU Reference2………,,0.800V*.......: Auto

    MCH/ICH
    MCH Core…………….....1.100V...........: 1.26
    MCH Reference….…….0.800V...........; Auto
    MCH/DRAM Ref.…......0.900V...........: Auto
    ICH I/O……………….....1.550V............: Auto
    ICH Core…………...……1.100V............: Auto

    DRAM
    DRAM Voltage ……....1.800V............: 2.1
    DRAM Termination .…0.900V............: Auto
    Channel A Reference 0.900V............: Auto
    Channel B Reference 0.900V............: Auto
    Advanced Settings
    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

    Any help tweeking would be greatly apreciated.

  2. #2

    Default Re: Looking to fine tune E8500 with GA-EP45-UD3R

    So are those settings stable? Meaning like hours of prime runs fine?

    Interesting about the PCI express not booting at 100 as thats supposed to be the frequency it runs at.
    Last edited by SpeedEuphoria; 12-17-2008 at 02:27 AM.

  3. #3

    Default Re: Looking to fine tune E8500 with GA-EP45-UD3R

    I have had to bump the voltage up a couple notchs, it passed intel burn but failed prime95. I am letting it burn as we speak, I will post the current voltage im using this evening. I will try to enable 100 pci frequency this evening by its self, try to eliminate one thing at a time, see what stops it from booting. When it did boot, it said it recovered from an overclock, thats when I loaded optimized settings, then set the voltage, mem, fsb and northbridge.

  4. #4

    Default Re: Looking to fine tune E8500 with GA-EP45-UD3R

    Quote Originally Posted by tonyjanderson1 View Post
    When it did boot, it said it recovered from an overclock, thats when I loaded optimized settings, then set the voltage, mem, fsb and northbridge.
    Just remember for future happenings, if you have a different CPU reference or MCH reference that works, best, remember that CPU termination changes the reference values.

    I think you need more MCH, like 1.32 or more for 500fsb, I need 1.32 at low FSB like just over 400, then 1.34 will get me a little more on top of that.
    Last edited by SpeedEuphoria; 12-17-2008 at 09:36 PM.

  5. #5

    Default Re: Looking to fine tune E8500 with GA-EP45-UD3R

    For the MCH, I dont know why I thought the safe voltages were between 1.24 and 1.28. If prime95 fails this afternoon, i'll bump up the MCH to 1.28 (or in your opinion should I just jump up to 1.32 or 1.34?), run prime95 again. Would you increase the cpu voltage or just start with MCH?
    Antec tps-650 E8500 A/C Freezer 7 pro
    Gigabyte ga-ep45-ud3r WD 640GB Vista 64
    G.Skill (2x2GB) PC2 8000 5-5-5-15 @1000
    Sapphire Radeon HD 4870 1GB 800 Gpu 1000 mem

  6. #6

    Default Re: Looking to fine tune E8500 with GA-EP45-UD3R

    Yeah bump the MCH voltage up, and your also going to find that MCH reference is a very important setting. Most people are finding success with lower, like .64-.70(while VTT aka CPU term is set at 1.2v as it changes otherwise)

  7. #7

    Default Re: Looking to fine tune E8500 with GA-EP45-UD3R

    Am I pushing the FSB too high or would I be better running 425 at 9.5 multiplier. Some reason I got myself on this 500 FSB kick to run the memory 1:1 (2b multiplier atm, also, I thought I saw where 2b was not stable over 400 FSB, is that true? Should I change this also to 2d?)
    Antec tps-650 E8500 A/C Freezer 7 pro
    Gigabyte ga-ep45-ud3r WD 640GB Vista 64
    G.Skill (2x2GB) PC2 8000 5-5-5-15 @1000
    Sapphire Radeon HD 4870 1GB 800 Gpu 1000 mem

  8. #8

    Default Re: Looking to fine tune E8500 with GA-EP45-UD3R

    Nope 2B seems to be the stablest around or above 500FSB from what I've seen. But not until you get near 500, from 400 to just over the 2D works well. Like when I was testing at low 400's 2B wouldn't even boot for me.

  9. #9

    Default Re: Looking to fine tune E8500 with GA-EP45-UD3R

    So I got home and it failed at 8hrs and 9mins. I have increased the mch to 1.34 and set the pci express freq to 100, booted with no problems. I'll set prime95 to run again shortly and see if I got this stable.
    Antec tps-650 E8500 A/C Freezer 7 pro
    Gigabyte ga-ep45-ud3r WD 640GB Vista 64
    G.Skill (2x2GB) PC2 8000 5-5-5-15 @1000
    Sapphire Radeon HD 4870 1GB 800 Gpu 1000 mem

  10. #10

    Default Re: Looking to fine tune E8500 with GA-EP45-UD3R

    Prime95 failed after 39 minutes with mch set to 1.34 and pci express is now set to 100. Not sure where to bump it up to now.
    Antec tps-650 E8500 A/C Freezer 7 pro
    Gigabyte ga-ep45-ud3r WD 640GB Vista 64
    G.Skill (2x2GB) PC2 8000 5-5-5-15 @1000
    Sapphire Radeon HD 4870 1GB 800 Gpu 1000 mem

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