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Thread: Normal Voltage for E6750




  1. #61
    Lsdmeasap's Avatar
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  2. #62
    Ken429 is offline Senior Member
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    Default Re: Normal Voltage for E6750

    ProfJim, I ran Prime 95 for 6+ hours @ FSB 440 and a Vcore of 1.3750V. Thought I had a success. Then I ran IBT as you suggested and it failed on the 8th pass. I increased the Vcore to 1.38125V and it completed 10 passes with no errors. So I'm running 4-4-4-12 or 880 @ 1.38125V but want to go to FSB 450. Do I keep increasing the Vcore or should I play with something else? I wanted to get to FSB 450 with the 4-4-4-12. It would seem I'm doing something wrong that it wants so much Vcore? I upped the FSB to 445 and IBT failed on the second pass more voltage??
    Code:
    Motherboard: Model: GA-EP45-UD3P(rev 1.6) Bios Version:  FD
    Cpu: E6750
    Ram: 2 X 2 GB Brand:  Mushkin 996599
    Power Supply Unit: Corsair 620HX
    
    
    MB Intelligent Tweaker (M.I.T.)
    Robust Graphics Booster ---------------- : [Auto] 
    CPU Clock Ratio ------------------------ : [ 8 X]
    CPU Frequency -----------------------: 3.52GHz( 440X8)
    
    Clock Chip Control
    
    Standard Clock Control
    CPU Host Clock Control ----------------- : [Enabled]
    CPU Host Frequency (Mhz) --------------- : [ 440]
    PCI Express Frequency (Mhz) ------------ : [100]
    C.I.A.2 -------------------------------- : [Disabled]
    
    Advanced Clock Control     [Press Enter]
    
    CPU Clock Drive ------------------------ : [ 800mV]
    PCI Express Clock Drive ---------------- : [ 900Mv]
    CPU Clock Skew (ps) -------------------- : [   0ps]
    MCH Clock Skew (ps) -------------------- : [   0ps]
    
    DRAM Performance Control
    Performance Enhance -------------------- : [Standard]
    (G)MCH Frequency Latch ----------------- : [Auto]
    System Memory Multiplier --------------- : [2.00D]
    Memory Frequency (Mhz) -----------------: 1066 880
    DRAM Timing Selectable -(SPD)----------- : [Manual]
    
    Standard Timing Control
    CAS Latency Time -------- 5 ------------ : [4]		
    tRCD -------------------- 5 ------------ : [   4]	
    tRP --------------------- 5 ------------ : [   4]	
    tRAS ------------------- 15 ------------ : [  12]	
    
    Advanced Timing Control    [Press Enter]
    tRRD -------------------- 4 ------------ : [Auto]		
    tWTR -------------------- 4 ------------ : [Auto]		
    tWR --------------------- 8 -------------: [Auto]		
    tRFC ------------------- 68 ------------ : [Auto]		
    tRTP -------------------- 4 ------------ : [Auto]		
    Command Rate (CMD) ------ 0 -------------: [Auto]
    
    Channel A
    Channel A Timing Settings  [Press Enter]
    Static tRead Value ----- 10 ----------- :  [9]		
    tRD Phase0 Adjustment --- 0 ------------ : [Auto]
    tRD Phase1 Adjustment --- 0 ------------ : [Auto]
    tRD Phase2 Adjustment --- 0 ------------ : [Auto]
    tRD Phase3 Adjustment --- 0 ------------ : [Auto]
    
    Trd2rd(Different Rank) -- 6 ------------ : [Auto]
    Twr2wr(Different Rank) -- 6 ------------ : [Auto]
    Twr2rd(Different Rank) -- 5 ------------ : [Auto]
    Trd2wr(Same/Diff Rank) -- 8 ------------ : [Auto]
    
    Dimm1 Clock Skew Control --------------- : [Auto]
    Dimm2 Clock Skew Control --------------- : [Auto]
    DDR Write Training --------------------- : [Auto]
    
    Channel B
    Channel B Timing Settings  [Press Enter]
    Static tRead Value ----- 10 ------------ : [9]		
    tRD Phase0 Adjustment --- 0 ------------ : [Auto]
    tRD Phase1 Adjustment --- 0 ------------ : [Auto]
    tRD Phase2 Adjustment --- 0 ------------ : [Auto]
    tRD Phase3 Adjustment --- 0 ------------ : [Auto]
    
    Trd2rd(Different Rank) -- 6 ------------ : [Auto]
    Twr2wr(Different Rank) -- 6 ------------ : [Auto]
    Twr2rd(Different Rank) -- 5 ------------ : [Auto]
    Trd2wr(Same/Diff Rank) -- 8 ------------ : [Auto]
    
    Dimm1 Clock Skew Control --------------- : [Auto]
    Dimm2 Clock Skew Control --------------- : [Auto]
    DDR Write Training --------------------- : [Auto]
    
    Channel A Driving Settings [Press Enter]
    Driving Strength Profile --------------- : [Auto]
    Data Driving Pull-Up Level ------------- : [Auto]
    Cmd  Driving Pull-Up Level ------------- : [Auto]
    Ctrl Driving Pull-Up Level ------------- : [Auto]
    Clk  Driving Pull-Up Level ------------- : [Auto]
    
    Data Driving Pull-Down Level ----------- : [Auto]
    Cmd  Driving Pull-Down Level ----------- : [Auto]
    Ctrl Driving Pull-Down Level ----------- : [Auto]
    Clk  Driving Pull-Down Level ----------- : [Auto]
    
    Channel B Driving Settings [Press Enter]
    Driving Strength Profile --------------- : [Auto]
    Data Driving Pull-Up Level ------------- : [Auto]
    Cmd  Driving Pull-Up Level ------------- : [Auto]
    Ctrl Driving Pull-Up Level ------------- : [Auto]
    Clk  Driving Pull-Up Level ------------- : [Auto]
    
    Data Driving Pull-Down Level ----------- : [Auto]
    Cmd  Driving Pull-Down Level ----------- : [Auto]
    Ctrl Driving Pull-Down Level ----------- : [Auto]
    Clk  Driving Pull-Down Level ----------- : [Auto]
    
    Motherboard Voltage Control
    CPU
    Voltage Types ----------- Normal ---------- Current
    Load-Line Calibration ------------------ : [Disabled]
    CPU Vcore --------------- 1.35000V ----- : [1.38125V] 
    
    CPU Termination --------- 1.200V* ------ : [1.260V] 
    CPU PLL ----------------- 1.500V* ------ : [1.570V] 
    CPU Reference ----------- 0.760V* ------ : [0.798V] 
    
    MCH/ICH
    MCH Core ---------------- 1.100V ------- : [1.260V] 
    MCH Reference ----------- 0.760V ------- : [0.798V]
    MCH/DRAM Ref ------------ 0.900V ------- : [1.030V]
    ICH I/O ----------------- 1.500V ------- : [1.570V] 
    ICH Core ---------------- 1.100V ------- : [1.200V] 
    DRAM
    DRAM Voltage ------------ 1.800V ------- : [2.060V] 
    DRAM Termination -------- 0.900V ------- : [1.030V]
    Channel A Reference ----- 0.900V ------- : [1.030V]
    Channel B Reference ----- 0.900V ------- : [1.030V]
    
    Standard CMOS Features
    Floppy A ------------------------------- : [None]
    Floppy 3 Mode Support ------------------ : [Disabled]
    
    Advanced Settings
    Hard Disk Boot Priority ---------------- : [Press Enter]
    Quick Boot ----------------------------- : [Disabled]
    First Boot Device ---------------------- : [CDROM]
    Second Boot Device --------------------- : [CDROM]
    Third Boot Device ---------------------- : [Hard Disk]
    Boot Up Floppy Seek -------------------- : [Disabled]
    Boot up Num-Lock ----------------------- : [On]
    Password Check ------------------------- : [Setup]
    HDD S.M.A.R.T. Capability -------------- : [Enabled]
    CPU Multi-Threading -------------------- : [Enabled]
    Limit CPUID Max. to 3 ------------------ : [Disabled]
    No-Execute Memory Protect -------------- : [Disabled]
    CPU Enhanced Halt (C1E) ---------------- : [Disabled]
    CPU Thermal Monitor 2 (TM2) ------------ : [Enabled]
    CPU EIST Function ---------------------- : [Disabled]
    Virtualization Technology -------------- : [Disabled] 
    Display For HDD (Secs) ----------------- : [ 0]
    Full Screen LOGO Show ------------------ : [Disabled]
    Backup BIOS Image to HDD --------------- : [Disabled]
    Init Display First --------------------- : [PEG]
    
    Integrated Peripherals
    SATA RAID/AHCI Mode -------------------- : [Disabled]
    SATA Port0-3 Native Mode --------------- : [Disabled]
    Azalia Codec --------------------------- : [Auto]
    Onboard H/W 1394 ----------------------- : [Disabled]
    Onboard H/W LAN1 ----------------------- : [Enabled]
    Onboard H/W LAN2 ----------------------- : [Enabled]
    Green Lan ------------------------------ : [Disabled]
    Smart LAN1 ----------------------------- : [Press Enter]
    Smart LAN2 ----------------------------- : [Press Enter]
    Onboard LAN1 Boot ROM ------------------ : [Disabled]
    Onboard LAN2 Boot ROM ------------------ : [Disabled]
    Onboard SATA/IDE Device ---------------- : [Enabled]
    Onboard SATA/IDE Ctrl Mode ------------- : [IDE]
    Onboard Serial Port 1 ------------------ : [Disabled]
    Onboard Parallel Port ------------------ : [Disabled]
    X Parallel Port Mode ------------------- :  SPP
    X ECP Mode Use DMA --------------------- :  3
    USB 1.0 Controlller -------------------- : [Enabled]
    USB 2.0 Controlller -------------------- : [Enabled]
    USB Keyboard Function ------------------ : [Enabled]
    USB Mouse Function --------------------- : [Enabled]
    USB Storage Function ------------------- : [Disabled]
    
    PC Health Status
    Reset Case Open Status ----------------- : [Disabled]
    CPU Warning Temperature ---------------- : [70 C/158 F]
    CPU Fan Warning ------------------------ : [Disabled]
    System Fan2 Fail Warning --------------- : [Disabled]
    Power Fan Warning ---------------------- : [Disabled]
    System Fan1 Fail Warning --------------- : [Disabled]
    CPU Smart Fan Control ------------------ : [Enabled]
    CPU Smart Fan Mode --------------------- : [PWM]
    
    Ran OCCT for 60 minutes
    Ran Prime95 for 6+ Hours on 3/17/2010
    Ran IBT 10 Passes
    Last edited by Ken429; 03-18-2010 at 08:23 AM.

  3. #63
    Lsdmeasap's Avatar
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    Default Re: Normal Voltage for E6750

    I'd suggest More Vtt and MCH Voltage, but I think Profjim has you on a different path than I would take so you may want to wait on his suggestions.

    Some CPU's just need way more Vcore than others, yours may or may not but I would think if you raised your Vtt a bit you could likely use less Vcore

  4. #64
    profJim's Avatar
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    Default Re: Normal Voltage for E6750

    Lsdme wrote:
    I'd suggest More Vtt and MCH Voltage, but I think Profjim has you on a different path than I would take so you may want to wait on his suggestions.
    It's Lsdme's first day back and he's already meddling again in one of "my"threads.

    In post # 55, I wrote:
    Increasing VTT often helps with stability. The general guideline is that VTT should be at least 0.05 - 0.10 volts lower than CPU Vcore.

    MCH Vcore = 1.28 might required.
    My Mushkins will run with MCH Core = 1.26 or 1.28, but my system feels "better" with 1.28 volts. YMMV, you might even need a bit more with 4GB of memory.
    Just to clarify the VTT statement, It's safe to increase CPU Termination VTT as long as the VTT setting is at least 0.05 - 0.10 volts lower than CPU Vcore.
    My system is happy with VTT = 1.28 with 492MHz FSB. Once again, YMMV.
    Keep in mind that no two systems will have the exact same bios settings, even when they both have similar hardware.
    Increasing VTT can have a major positive effect on stability. Your goal is to use the lowest VTT setting that provides stability.

    Your posted bios settings in post #62 shows that you have MCH Vcore = 1.26.
    In post #56, you said:
    MCH Vcore is now 1.28V
    Which setting were you using, 1.26 or 1.28?

    It's best to always include the ET6 ---> Tuner ---> Advance ---> Voltage screen along with the cpu-z CPU screen, and Memset screen when you're including a screen-shot, especially if you're having issues.

    To save time, I always run IBT or LinX for 10 loops before I run any extended Prime95 or OCCT stress tests. If IBT or LinX tests fail, I know my system isn't stable, so I don't continue with the other tests. Many times I've had IBT or LinX tests pass, only to have Prime95 or OCCT generate errors, sometimes after 8 - 12 hours.

    Are you currently running with 4GB or 8GB with your E6750 system?

    Both of our cpu's have the same VID = 1.35000. I'm using 1.36850 volts at 3.44GHz (7x492) with 984MHz memory. At 3.52GHz (8x440), I'd be surprised if you had to use CPU Vcore higher than 1.37500 volts.
    My mobo revision # is 1.0 and you're using rev: 1.6

    If Lsdme disagrees with anything in this post, he needs to remember my motto: "compromise and do it my way".
    Last edited by profJim; 03-18-2010 at 05:27 PM.
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
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  5. #65
    Ken429 is offline Senior Member
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    Default Re: Normal Voltage for E6750

    I'll stop including the BIOS settings since it would appear you don't trust/like them. Anyway, MCH Core is at 1.26V, I tried 1.28V at FSB 450 and it had no effect. Likewise, I tried raising the VTT in the past and it did not have a positive effect. The top line on the BIOS setings says I have only 4 GB of the Mushkin memory (set at 4-4-4-12, 9, everything else AUTO) installed on this system that's what I got. It is a new day so I'll try increasing the VTT and the MCH Core and see if that helps this time around. I don't think I want to keep raising the Vcore much past where it is now - do I? Screen shots are on the way.

  6. #66
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    Default Re: Normal Voltage for E6750

    We need the combination of posted bios settings and the detailed screen-shot helps cut way down on errors.
    It's very easy to make errors when you're preparing an updated bios template. The screen-shot helps to confirm some of the bios settings.
    It wastes yours and out time when incorrect settings are posted. We need accurate information.
    Having the correct voltages for your system will allow the lowest possible settings.

    I'm sure that Chike and others can help you from here on out.
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S
    .


  7. #67
    Ken429 is offline Senior Member
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    Default Re: Normal Voltage for E6750

    I increased the MCH Core to 1.28V and the VTT to 1.28V. IBT crashed on 3rd pass. I increased the VTT to 1.30V and IBT crashed on the 2nd pass - screen shot attached. HELP!

  8. #68
    Ken429 is offline Senior Member
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    Default Re: Normal Voltage for E6750

    ProfJim, I know you want screen shots and I was just lazy after I ran IBT successfully for the first time. I understand that the only good information is from the actual screen shots - so don't give up on me - my sense of humor got carried away on the BIOS listing. You got me to 4 GHz on the Q9550 system all I want with this one is 3.6GHz. However, it does seem like VTT and MCH Core increases don't seem to help once this thing gets past FSB 440. Time to play with the Reference Voltages? Also, am I reaching the 4-4-4-12 limit on the Mushkin Memory?

  9. #69
    Ken429 is offline Senior Member
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    Default Re: Normal Voltage for E6750

    Well it it is any consolation I think something has finally "broke". I have replaced the MB and Memory and always get to the same spot. Now, I'm even loosing ground. The FSB 440 IBT that I ran successfully yesterday failed today. An IBT run with 445 FSB that ran 5 passes successfully came right back and failed an hour later. The stable system I had at FSB 440 is no longer stable blue screens everywhere! I dropped back to FSB 430 and it still is able to run IBT for five passes - I'm afraid to try 10 passes. Ever had a processor go bad after 2 or three years of usage? That's about the only part I have not replaced! I'll run the Mem test and make sure that memory is ok. Any suggestions on the best way to make sure the memory is not the problem would be appreciated. Or is a clear CMOS and start over in order?
    Last edited by Ken429; 03-19-2010 at 01:23 AM.

  10. #70
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: Normal Voltage for E6750

    Quote Originally Posted by profJim View Post
    Lsdme wrote:

    It's Lsdme's first day back and he's already meddling again in one of "my"threads.

    Hey buddy! Ya, sorry, I was just trying to play a little bit of catch up and I had not read the full thread.

    I'll leave you be with threads you are helping with, as we do things quite differently often times. And ya you are right about the Vtt, it all just looked very low to me for IBT is why I made those suggestions

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