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Thread: Stable E8400 OC - stock voltages




  1. #221
    Join Date
    May 2009
    Location
    Canada
    Posts
    178

    Default Re: Stable E8400 OC - stock voltages

    Exactomundo !!!!

    Just try what I suggested first SBMongoos. Who knows, you might be unlucky and may not even be able to do 4ghz. 4.5ghz is far too ambitious when you don't even understand the fundamentals for oc'ing as you even said that this is your first oc, and your only using a xiggy. I am not trying to be condescending, so please don't take it the wrong way. When you get the feel for oc'ing at 4ghz, then you can try for higher. However, it is prudent to do it in stages. Don't jump into the deep end when you don't even know how to swim, my friend. Bad things will happen.
    1) Gigabyte EP45-UD3P (rev 1.1, bios F9) E8400 @445x9@1.2625v bios, TRUE 120, Scythe UltraKaze 44cfm, 4x2gb GSkill 8500, Visiontek 3870, Corsair TX850, Antec 900, Win7-64 Home.
    2) Gigabyte EP45-UD3P (rev 1.1, bios F9) E8400 @500x8.5@1.2875v bios, TRUE 120, Schythe UltraKaze 44 cfm, 4x2gb Buffalo FireStyx 8500, XFX 5770, Corsair AX850, CM Scout, WinXP Pro/Win 7-64 Home.
    3) Gigabyte P55A-UD4P (rev 1.0, bios F5) i5 750 @190x20@1.30625v bios, CM Hyper 212+, 4x2gb G.Skill Ripjaw 1600, 7900GS, Corsair TX750, CM Scout, Win7 Pro-64.
    4) Asus P8Z68-V Pro (bios 0801), i5-2500K @44x100@1.248v cpuz, Megahalem rev.B, 4x4gb GSkill Sniper 1600, Corsair AX850, Antec 902, Corsair Performance 3 128GB, Win7-64 Home.


  2. #222

    Default Re: Stable E8400 OC - stock voltages

    So you thinking ~4.0 Ghz is probably tops or maybe 4.25?
    Gigabyte EP45-UD3R (rev 1.1, bios F12), E8400 @ 3.83Ghz, Xigmatek S1283, 2x2Gb OCZ2RPR11504GK Reaper PC2-9500 HPC 1150Mhz, PNY 9600 GSO 768MB PCI-e OC , CoolerMaster 590, WinXP SP3 32bit and Win7 Pro 64 Bit (swappable HDD's via Icy Dock)


  3. #223
    Join Date
    May 2009
    Location
    Canada
    Posts
    178

    Default Re: Stable E8400 OC - stock voltages

    Each cpu may behave differently. You have to try it on your cpu to see what it can do, my friend. I could have gone higher because both my vcore values and temps are relatively low for both my computers but I didn't bother because I wanted low voltages and quiet computers. 4 - 4.25ghz was more than enough for what I needed those computer for. For more, I would have to increase voltages, then I would have to deal with higher temperatures by using higher cfm fans and most likely the noise levels will increase. I did not want to use water or other exotic cooling methods. There are people on this forum and over at extreme that have gone higher on air with the E8400. I set my oc goals based on the criteria that I wanted out of my computers and I achieved those goals. Hopefully you know what you want out of your computer and why. Then set your goals accordingly.

    All the best.
    1) Gigabyte EP45-UD3P (rev 1.1, bios F9) E8400 @445x9@1.2625v bios, TRUE 120, Scythe UltraKaze 44cfm, 4x2gb GSkill 8500, Visiontek 3870, Corsair TX850, Antec 900, Win7-64 Home.
    2) Gigabyte EP45-UD3P (rev 1.1, bios F9) E8400 @500x8.5@1.2875v bios, TRUE 120, Schythe UltraKaze 44 cfm, 4x2gb Buffalo FireStyx 8500, XFX 5770, Corsair AX850, CM Scout, WinXP Pro/Win 7-64 Home.
    3) Gigabyte P55A-UD4P (rev 1.0, bios F5) i5 750 @190x20@1.30625v bios, CM Hyper 212+, 4x2gb G.Skill Ripjaw 1600, 7900GS, Corsair TX750, CM Scout, Win7 Pro-64.
    4) Asus P8Z68-V Pro (bios 0801), i5-2500K @44x100@1.248v cpuz, Megahalem rev.B, 4x4gb GSkill Sniper 1600, Corsair AX850, Antec 902, Corsair Performance 3 128GB, Win7-64 Home.


  4. #224

    Default Re: Stable E8400 OC - stock voltages

    Quote Originally Posted by BoombasticSloth View Post
    Each cpu may behave differently. You have to try it on your cpu to see what it can do, my friend. I could have gone higher because both my vcore values and temps are relatively low for both my computers but I didn't bother because I wanted low voltages and quiet computers. 4 - 4.25ghz was more than enough for what I needed those computer for. For more, I would have to increase voltages, then I would have to deal with higher temperatures by using higher cfm fans and most likely the noise levels will increase. I did not want to use water or other exotic cooling methods. There are people on this forum and over at extreme that have gone higher on air with the E8400. I set my oc goals based on the criteria that I wanted out of my computers and I achieved those goals. Hopefully you know what you want out of your computer and why. Then set your goals accordingly.

    All the best.
    Well written.

    I think it's to be able to do it and have the speed and not for any really good reason I suppose. It would, at least, be nice to get 4 or just over so it's official that I hit that level.
    Gigabyte EP45-UD3R (rev 1.1, bios F12), E8400 @ 3.83Ghz, Xigmatek S1283, 2x2Gb OCZ2RPR11504GK Reaper PC2-9500 HPC 1150Mhz, PNY 9600 GSO 768MB PCI-e OC , CoolerMaster 590, WinXP SP3 32bit and Win7 Pro 64 Bit (swappable HDD's via Icy Dock)


  5. #225
    Join Date
    May 2009
    Location
    Canada
    Posts
    178

    Default Re: Stable E8400 OC - stock voltages

    Nothing wrong with that.

    So get your feet wet, my friend.
    1) Gigabyte EP45-UD3P (rev 1.1, bios F9) E8400 @445x9@1.2625v bios, TRUE 120, Scythe UltraKaze 44cfm, 4x2gb GSkill 8500, Visiontek 3870, Corsair TX850, Antec 900, Win7-64 Home.
    2) Gigabyte EP45-UD3P (rev 1.1, bios F9) E8400 @500x8.5@1.2875v bios, TRUE 120, Schythe UltraKaze 44 cfm, 4x2gb Buffalo FireStyx 8500, XFX 5770, Corsair AX850, CM Scout, WinXP Pro/Win 7-64 Home.
    3) Gigabyte P55A-UD4P (rev 1.0, bios F5) i5 750 @190x20@1.30625v bios, CM Hyper 212+, 4x2gb G.Skill Ripjaw 1600, 7900GS, Corsair TX750, CM Scout, Win7 Pro-64.
    4) Asus P8Z68-V Pro (bios 0801), i5-2500K @44x100@1.248v cpuz, Megahalem rev.B, 4x4gb GSkill Sniper 1600, Corsair AX850, Antec 902, Corsair Performance 3 128GB, Win7-64 Home.


  6. #226

    Default Re: Stable E8400 OC - stock voltages

    Quote Originally Posted by BoombasticSloth View Post
    Nothing wrong with that.

    So get your feet wet, my friend.
    I'll try the settings you recommended for 4.005Ghz. I'm not one to mess with these settings on my own. Get too impatient and so rarely bother with this sort of thing.
    Gigabyte EP45-UD3R (rev 1.1, bios F12), E8400 @ 3.83Ghz, Xigmatek S1283, 2x2Gb OCZ2RPR11504GK Reaper PC2-9500 HPC 1150Mhz, PNY 9600 GSO 768MB PCI-e OC , CoolerMaster 590, WinXP SP3 32bit and Win7 Pro 64 Bit (swappable HDD's via Icy Dock)


  7. #227

    Default Re: Stable E8400 OC - stock voltages

    What about using Gigabytes tool to OC?
    Gigabyte EP45-UD3R (rev 1.1, bios F12), E8400 @ 3.83Ghz, Xigmatek S1283, 2x2Gb OCZ2RPR11504GK Reaper PC2-9500 HPC 1150Mhz, PNY 9600 GSO 768MB PCI-e OC , CoolerMaster 590, WinXP SP3 32bit and Win7 Pro 64 Bit (swappable HDD's via Icy Dock)


  8. #228

    Default Re: Stable E8400 OC - stock voltages

    Quote Originally Posted by BoombasticSloth View Post
    Here is a starter bios template. I made it easier for you to try.
    Good luck.


    Code:
    Robust Graphics Booster ...............: [Auto]
    CPU Clock Ratio .......................: [ 9]
    Fine CPU Clock Ratio...................: +0.0
    CPU Frequency .........................: 4.005GHz
    
    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control.................: [Enabled]
    CPU Host Frequency (Mhz) ..............: 445Mhz
    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]
    Extreme Memory Profile (X.M.P.)........: [Disabled]
    (G)MCH Frequency Latch.................: Auto
    System Memory Multiplier ..............: 2.00D
    Memory Frequency (Mhz) ................: 890
    DRAM Timing Selectable ................: [Manual]
    
    Standard Timing Control
    CAS Latency Time.......................: 5
    tRCD ..................................: 6
    tRP'...................................: 6
    tRAS...................................: 18
    
    Advanced Timing Control
    tRRD...................................: 5
    tWTR...................................: 5
    tWR....................................: 8
    tRFC...................................: 54
    tRTP...................................: 5
    Command Rate (CMD) ....................: 2
    
    Driving Strength Profiles
    Driving Strength ......................: 1066
    
    Channel A
    Static tRead Value.....................: 11 ( just for starters, I know I suggested 8-10 before, but just try 11 to be on the safe side. You can tweak it lower later.)
    tRD Phase0 Adjustment..................: [Auto] 0
    tRD Phase1 Adjustment..................: [Auto] 0
    tRD Phase2 Adjustment .................: [Auto] 0
    tRD Phase3 Adjustment..................: [Auto] 0
    
    Trd2rd(Different Rank).................: [Auto] 6
    Twr2wr(Different Rank).................: [Auto] 6
    Twr2rd(Different Rank).................: [Auto] 5
    Trd2wr(Same/Diff Rank).................: [Auto] 8
    
    Dimm1 Clock Skew Control...............: [Auto]
    Dimm2 Clock Skew Control...............: [Auto]
    DDR Write Training.....................: [Auto]
    
    Channel B
    Static tRead Value.....................: 11
    tRD Phase0 Adjustment..................: [Auto] 1 (odd as it's not 0 and set to auto)
    tRD Phase1 Adjustment..................: [Auto] 0
    tRD Phase2 Adjustment .................: [Auto] 0
    tRD Phase3 Adjustment..................: [Auto] 0
    
    Trd2rd(Different Rank).................: [Auto] 6
    Twr2wr(Different Rank).................: [Auto] 6
    Twr2rd(Different Rank).................: [Auto] 5
    Trd2wr(Same/Diff Rank).................: [Auto] 8
    
    Dimm1 Clock Skew Control...............: [Auto]
    Dimm2 Clock Skew Control...............: [Auto]
    DDR Write Training.....................: [Auto]
    
    Motherboard Voltage Control
    Voltage Type...........................: [Manual]
    CPU---------------------Normal-----------Current
    Load Line Calibration..................: [Disabled]
    CPU Vcore...............1.25000V.......:   1.325v
    CPU Termination.........1.200V.........: 1.24V
    CPU PLL.................1.500V.........: 1.57v
    CPU Reference...........0.760V.........: [Auto] 
    
    MCH/ICH
    MCH Core................1.100V.........:  1.24v
    MCH Reference...........0.760V.........: 0.785v +- 
    MCH/DRAM Reference......0.900V.........: [Auto]
    ICH I/O.................1.500V.........: 1.570V
    ICH Core................1.100V.........: 1.200V
    
    DRAM
    DRAM Voltage............1.800V.........: 2.200V
    DRAM Termination........0.900V.........: [Auto]
    Channel A Reference.....0.900V.........: [Auto]
    Channel B Reference.....0.900V.........: [Auto]
    __________________

    This seems to be working and I'm testing it with Prime. Where would you adjust from here if this tests fine? Or would it not be worth it?
    Gigabyte EP45-UD3R (rev 1.1, bios F12), E8400 @ 3.83Ghz, Xigmatek S1283, 2x2Gb OCZ2RPR11504GK Reaper PC2-9500 HPC 1150Mhz, PNY 9600 GSO 768MB PCI-e OC , CoolerMaster 590, WinXP SP3 32bit and Win7 Pro 64 Bit (swappable HDD's via Icy Dock)


  9. #229
    Join Date
    May 2009
    Location
    Canada
    Posts
    178

    Default Re: Stable E8400 OC - stock voltages

    Enter all the values into the spreadsheet.

    What are your load temperatures at, and what is your vcore after droop as per cpuz. Record these values into the spreadsheet. Run it for at least 12 hrs -24 hrs on prime blend.
    1) Gigabyte EP45-UD3P (rev 1.1, bios F9) E8400 @445x9@1.2625v bios, TRUE 120, Scythe UltraKaze 44cfm, 4x2gb GSkill 8500, Visiontek 3870, Corsair TX850, Antec 900, Win7-64 Home.
    2) Gigabyte EP45-UD3P (rev 1.1, bios F9) E8400 @500x8.5@1.2875v bios, TRUE 120, Schythe UltraKaze 44 cfm, 4x2gb Buffalo FireStyx 8500, XFX 5770, Corsair AX850, CM Scout, WinXP Pro/Win 7-64 Home.
    3) Gigabyte P55A-UD4P (rev 1.0, bios F5) i5 750 @190x20@1.30625v bios, CM Hyper 212+, 4x2gb G.Skill Ripjaw 1600, 7900GS, Corsair TX750, CM Scout, Win7 Pro-64.
    4) Asus P8Z68-V Pro (bios 0801), i5-2500K @44x100@1.248v cpuz, Megahalem rev.B, 4x4gb GSkill Sniper 1600, Corsair AX850, Antec 902, Corsair Performance 3 128GB, Win7-64 Home.


  10. #230

    Default Re: Stable E8400 OC - stock voltages

    Quote Originally Posted by BoombasticSloth View Post
    Enter all the values into the spreadsheet.

    What are your load temperatures at, and what is your vcore after droop as per cpuz. Record these values into the spreadsheet. Run it for at least 12 hrs -24 hrs on prime blend.
    Doing this now. Have one question though. What were your settings for the Blend Test?

    Here's what I've been using based on info from another user here:

    For ORTHOS, yes, get the Dual Core version as it stresses both cores at the same time. I first
    run Small FFT for about an hour to make sure the CPU voltage is correct. You can accept all
    default options, but I like priority 9. You will not be able to use your computer while testing,
    but priority 9 is more stressful in my opinion. Priority 1 will still stress your rig very well, but
    you will be able to use your PC at the same time.

    Once you know CPU Vcore is good, proceed to Large FFT, priority 9, for an hour. Then you will
    know if RAM is okay.

    Finally, proceed to Blend Test. After you select Blend Test, go back to the drop-down menu
    and select custom. Leave everything at default, but change "Time to run each FFT" to 3
    minutes. It is very important to select Blend Test, and then go back and select Custom! Run
    this for as long as you are able to. I ran for 15 hours before I manually stopped it, but you
    should be fine if you get no errors after 4 hours, especially if you are using my settings.

    I was thinking I'd go right to the Blend Test. I tried the first two tests listed above and had no issues. Only did step two for about 2 hours though. I don't see VDroop results in Prime. Or do you enable the Voltage under the MBM Senors for Prime?

    Edit:

    I see I need to use CPU-Z for the VCore info per your notes. However, what do you mean by "what is your vcore after droop as per cpuz". I see that CPUZ has Core Voltage on the CPU tab so it seems clear to me this is what you're referring to. Need details on the "after droop" thing.

    If it helps I have revision E0 of the E8400 CPU.
    Last edited by SBMongoos; 10-22-2009 at 12:48 AM.
    Gigabyte EP45-UD3R (rev 1.1, bios F12), E8400 @ 3.83Ghz, Xigmatek S1283, 2x2Gb OCZ2RPR11504GK Reaper PC2-9500 HPC 1150Mhz, PNY 9600 GSO 768MB PCI-e OC , CoolerMaster 590, WinXP SP3 32bit and Win7 Pro 64 Bit (swappable HDD's via Icy Dock)


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