Please report all spam threads, posts and suspicious members. We receive spam notifications and will take immediate action!
Page 28 of 33 FirstFirst ... 182627282930 ... LastLast
Results 271 to 280 of 322

Thread: Stable E8400 OC - stock voltages




  1. #271

    Default Re: Stable E8400 OC - stock voltages

    Quote Originally Posted by Psycho101 View Post
    As chike said, ET6 reports refs in a different way. I've gotten used to it as have others but it can be confusing, so best not to worry about it. ET6 will always show MCH and CPU Ref to be what ever figure it becomes at 1.2CPU Term. So if you have 0.760V MCH Ref at 1.2CPU Term then even if you set CPU term to 1.4V, ET6 will still show 0.760V. If you have MCH Ref set to 0.720V @ 1.2V CPU Term, then ET6 will always show 0.72V etc, etc.

    The idea of changing MCH Ref when CPU Ref is 1.2V is so that you get the correct % scaling.

    Your plan for testing seems good and I look forward to seeing what you find out. Remember though that with a dual core it's usually the case that less MCH Ref is better.

    For tuning CPU Term and MCH Ref, set a Vcore you know is enough for the speed you want and do the following:

    CPU term to 1.2V, MCH Ref at default 0.760V
    Increase CPU term to 1.22, 1.24, 1.26, 1.28, 1.3, 1.32, 1.34, 1.36, 1.38, 1.40, testing after each change to CPU Term. Don't touch MCH ref after initially setting 0.760 @1.2 CPU Term

    CPU Term to 1.2V and MCH Ref to 0.740V
    Increase CPU term to 1.22, 1.24, 1.26, 1.28, 1.3, 1.32, 1.34, 1.36, 1.38, 1.40, testing after each change to CPU Term. Don't touch MCH ref after initially setting 0.740 @1.2 CPU Term

    CPU Term to 1.2V and MCH Ref to 0.720V
    Increase CPU term to 1.22, 1.24, 1.26, 1.28, 1.3, 1.32, 1.34, 1.36, 1.38, 1.40, testing after each change to CPU Term. Don't touch MCH ref after initially setting 0.720 @1.2 CPU Term

    CPU Term to 1.2V and MCH Ref to 0.700V
    Increase CPU term to 1.22, 1.24, 1.26, 1.28, 1.3, 1.32, 1.34, 1.36, 1.38, 1.40, testing after each change to CPU Term. Don't touch MCH ref after initially setting 0.700 @1.2 CPU Term

    Lower than 0.700MCH Ref at 1.2V CPU Term isn't often needed, and you should find the best value between 0.760 and 0.70V for a dual core.
    Before I continue I need to be clear on something. So when I set the CPU Term to 1.2v the MCH Ref should be .76v. As I ratchet the CPU Term up the MCH Ref should move up automatically (as you said: "so that you get the correct % scaling").

    I'm under the impression to set the MCH Ref to Normal forcing .76. So then as the CPU Term is moved up I'm testing at .76v. Then I go to .74v and so on. Not sure there is a way to effectively choose a specific MCH Ref since changing the CPU Term changes the MCH Ref. The reason I think this is because otherwise it would not make any sense to change the CPU Term and the MCH Ref (MCH Ref move % along with CPU Term) as I'm not working with static numbers to see what works. There would be no way to do what you are saying above.

    After doing your IBT test and using GFlops I determined that 1.28125v was the number to set for Vcore.

    Am I making sense?

    Edit: I think I'm clear now. Thanks for everyone's patience. Often I'm multitasking and when working with something new to me I'm not getting clear.

    It looks like you have a 5 step process with several steps within each. Here's what I now understand. Go into BIOS and set the CPU Term to 1.2v and the MCH Ref to .76 (default or at least verify it lands there). If this works then I'm golden, if not then next push the CPU Term to 1.22v and make note of what the BIOS shows the MCH Ref (my case .772), if it fails try 1.24v (MCH Ref goes to .785) and so on. If all these tests under the initial .76 MCH Ref fails then move onto MCH Ref .74v and starting at CPU Term 1.2v and use the same process I just detailed above. Correct?

    It seems we're trying to accomplish the lowest voltage (Vcore) but still have the power/strength needed, then set the other settings at the lowest values (for "V", Vcore, CPU Term MCH Ref...others) but at the same time changing other settings to improve performance (i.e.: SMM, Dram Timing, Static tRead Value). Finding a balance that works and of course will very between different PCs even with the identical setup.

    So is it necessary to reboot every time between every setting and every test for these changes or can you use ET6 to make them? Or is the BIOS the only place to know exactly what you are working with?
    Last edited by SBMongoos; 11-05-2009 at 05:24 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)


  2. #272

    Default Re: Stable E8400 OC - stock voltages

    Okay...apparently I'm too impatient or I'm not going to hit the 4Ghz mark (that and too much going on).

    I've setup Win 7 Pro 64bit on another disk and I noticed when in System it shows the CPU at 3Ghz instead of 3.83Ghz. I assume this is normal?

    Also, when running the performance test in Win 7 I ended up with a 5.9 because the drive scored 5.9. Apparently I need a 10,000RPM drive (using 7200) to get the test up where everything else was hitting (upper 6's)?
    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. #273
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
    Join Date
    Jan 2008
    Location
    PCB Island
    Posts
    25,940

    Default Re: Stable E8400 OC - stock voltages

    Yes, you can ignore Vista/Windows 7 system properties as it is often wrong. CPU-z will always be correct.

    Ya, faster drive or SSD!

    Do you still need a answer to your bold question above? If so, yes reboot and use the BIOS for the most part as ET settings are not the same as what you set in the BIOS due to the Vtt changing ref's

  4. #274

    Default Re: Stable E8400 OC - stock voltages

    Quote Originally Posted by Lsdmeasap View Post
    Yes, you can ignore Vista/Windows 7 system properties as it is often wrong. CPU-z will always be correct.

    Ya, faster drive or SSD!

    Do you still need a answer to your bold question above? If so, yes reboot and use the BIOS for the most part as ET settings are not the same as what you set in the BIOS due to the Vtt changing ref's
    Thanks.

    As for hitting over 4Ghz. I gave up. Probably due to impatience. Too many variables and rather time consuming. I still want to get it done but no idea when. Kept my machine too tied up. Guess I was lucky with the 3.83 recommendations some time back as they seem to work just fine. Probably should retest those settings under this newer test info I got to be sure though.
    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. #275
    Join Date
    Apr 2009
    Location
    J'Habite En Angleterre
    Posts
    2,431

    Default Re: Stable E8400 OC - stock voltages

    Even with a 10KRPM Velociraptor you probably won't break 5.9. I've seen a few SAS 15K RAID0 twin drive arrays only getting 6.4. For a dramatic boost to WEI HDD scores, like Lsd says, a SSD is probably needed. Vista WEI concentrated on sequential read write, but Win 7 also extends this to 512K and 4K random write/read. These small er random file sizes is where HDD's fall over big time. I get 0.3MB/s 4K read on my WD6400AAKS but 24MB/s 4K random read on my SSD. That's 80x more performance :thumbsup.

    you could always cheat though.... there are a few ways to hack WEI on the net...After all, it's only stored in an XML file.
    Coolermaster CM 690 II advance Case
    Corsair HX750 (CWT, 91%(80+ Gold rated @230V) single 62A 12V rail
    P55A-UD4 v2.0 @ F14
    Core i5 760 @ 20 x 201, 4.02GHz
    TRUE Black with a single Noctua NF-P12 pumping out 55 CFM @ 19db .
    2 x 2GB Mushkin Ridgeback (996902), @ 7-10-8-27, 2010-DDR, 1.66v
    2 x Gigabyte GTX 460 1024MB in SLI (Pre OC'd to 715MHz core and 1800MHz VRAM) @ 850 Core / 4100 Mem.
    Intel X25-M Boot Drive (OS and Programs) 200MB/s Read & 90MB/s Write
    Corsair X32 200MB/s Read & 100MB/s Write
    WD Caviar Blue 640GB C (Steam, Games, Storage, Temp Files & Folders, etc)
    Samsung F3 500GB Backup/Images
    Noctua 1300RPM 19dB case fan (rear extraction)
    3 x 140 MM Coolermaster LED fans (one front intake, one top extraction, one side intake)
    Dell Ultra Sharp 2209WAf E-IPS @ 1680x1050

  6. #276
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
    Join Date
    Jan 2008
    Location
    PCB Island
    Posts
    25,940

    Default Re: Stable E8400 OC - stock voltages

    Well if you need help with 4Ghz ask anytime when you find the time to tinker around

  7. #277

    Default Re: Stable E8400 OC - stock voltages

    Quote Originally Posted by Lsdmeasap View Post
    Well if you need help with 4Ghz ask anytime when you find the time to tinker around
    My schedule is more flexible right now. How do we start?

    And thanks!
    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. #278

    Default Re: Stable E8400 OC - stock voltages

    Quote Originally Posted by Psycho101 View Post
    Even with a 10KRPM Velociraptor you probably won't break 5.9. I've seen a few SAS 15K RAID0 twin drive arrays only getting 6.4. For a dramatic boost to WEI HDD scores, like Lsd says, a SSD is probably needed. Vista WEI concentrated on sequential read write, but Win 7 also extends this to 512K and 4K random write/read. These small er random file sizes is where HDD's fall over big time. I get 0.3MB/s 4K read on my WD6400AAKS but 24MB/s 4K random read on my SSD. That's 80x more performance :thumbsup.

    you could always cheat though.... there are a few ways to hack WEI on the net...After all, it's only stored in an XML file.
    You know. I just installed a WD GP (Eco/Green Power) hard disk. Apparently they are variable speed and will go to 7200 RPM when called to. I wonder if this may be an issue? Plus, I'm noticing some video issues I didn't before. Like when swapping between app windows and still seeing an image from the previous app. I have my swap file (pagefile) set up on the WD drive.
    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. #279
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
    Join Date
    Jan 2008
    Location
    PCB Island
    Posts
    25,940

    Default Re: Stable E8400 OC - stock voltages

    Ya, I have seen those disks and wondered why anyone would buy one...

    Could be an issue? Why did you decide to get it anyway?

    Give me your full current settings and I will advise back for what to try next for 4Ghz.

  10. #280

    Default Re: Stable E8400 OC - stock voltages

    Quote Originally Posted by Lsdmeasap View Post
    Ya, I have seen those disks and wondered why anyone would buy one...

    Could be an issue? Why did you decide to get it anyway?

    Give me your full current settings and I will advise back for what to try next for 4Ghz.
    Got it for $49. But my main drive is 7200RPM and the pagefile is on the WD so it causes issues as it's too slow. I talked to a tech at WD and it seems they don't even know what speed except that it's between 5400-7200. I found a spec sheet at the WD site saying it was 7200 so that is why I bought it. I had also read it was variable speed so I figured it would do the job and gear to the speed needed. Not the case. Cleaned the drive and it's going back (Office Max). Order the 640Gb WD Black at Newegg for $49 with free s/h last night as a replacement.

    My BIOS settings:

    Robust Graphics Booster ...............: [Auto]
    CPU Clock Ratio .......................: [ 9]
    Fine CPU Clock Ratio...................: +0.0
    CPU Frequency .........................: 3.83GHz

    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control.................: [Enabled]
    CPU Host Frequency (Mhz) ..............: 426Mhz
    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 ..............: 2.40B
    Memory Frequency (Mhz) ................: 1022
    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.....................: 8
    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.....................: 8
    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.......: 1.28750V
    CPU Termination.........1.200V.........: 1.200V
    CPU PLL.................1.500V.........: 1.500V
    CPU Reference...........0.760V.........: [Auto]

    MCH/ICH
    MCH Core................1.100V.........: 1.220V
    MCH Reference...........0.760V.........: [Auto]
    MCH/DRAM Reference......0.900V.........: [Auto]
    ICH I/O.................1.500V.........: 1.500V
    ICH Core................1.100V.........: 1.100V

    DRAM
    DRAM Voltage............1.800V.........: 2.200V
    DRAM Termination........0.900V.........: [Auto]
    Channel A Reference.....0.900V.........: [Auto]
    Channel B Reference.....0.900V.........: [Auto]
    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)


Page 28 of 33 FirstFirst ... 182627282930 ... LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •