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Thread: EP45-DS3R & E8400 & 2x2GB 1066MHz - Overclocking help required.




  1. #21
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    Default Re: EP45-DS3R & E8400 & 2x2GB 1066MHz - Overclocking help required.

    Quote Originally Posted by profJim
    Don't send praise, send money.
    If you feel that profJim has helped please feel free to donate to:
    profJim at his PayPal account.

    Quote Originally Posted by profJim View Post
    Thanks Conners, but Chike deserves the bulk of the credit here.
    MadTommy is clearly smart enough to compromise and do it our way.
    Ahhh smart man I see (chike is not to bad himself), nothing like a good old fashion compromise to start your overclocking day.

  2. #22
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    Default Re: EP45-DS3R & E8400 & 2x2GB 1066MHz - Overclocking help required.

    Quote Originally Posted by profJim View Post
    Don't send praise, send money.
    Setting tRFC = 52 should be stable and will further improve memory performance.
    There are several additional memory tweaks that can be set, but it's best to leave these on the loose side while overclocking.
    Changing too many things at one time is asking for trouble.

    Glad to help out.
    I'll set tRFC to 52 and then run some lengthy tests.

    Time for a ******ss

    Thanks again.

    Edit: eh edited my favourite drink! lol
    -Intel Core2 Duo CPU E8400 @ 3.60GHz
    -Gigabyte EP45-DS3R Bios version F10
    -Artic Cooling, Freeze 7 pro
    -Corsair 2x2GB 1066MHz (CM2X 2048- - 8500 C5) (5-5-5-15)
    -EVGA GTX 480 with Backplate/Bracket SuperClocked
    -Creative Soundblaster X-Fi Xtreme Music
    -Corsair TX650 (650W)
    -Cooler Master CM 690 case.
    -Microsoft Windows 7 X64.
    -120GB OCZ SSD & 4 500GB SATA HDs

  3. #23
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    Default Re: EP45-DS3R & E8400 & 2x2GB 1066MHz - Overclocking help required.

    If your favorite drink begins with a "G", I agree, really good stuff!!

  4. #24
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    Default Re: EP45-DS3R & E8400 & 2x2GB 1066MHz - Overclocking help required.

    ^^ it does indeed. :)

    I set tRFC to 52 and failed to boot. Returned it back to its 68 [AUTO] setting.

    ?
    -Intel Core2 Duo CPU E8400 @ 3.60GHz
    -Gigabyte EP45-DS3R Bios version F10
    -Artic Cooling, Freeze 7 pro
    -Corsair 2x2GB 1066MHz (CM2X 2048- - 8500 C5) (5-5-5-15)
    -EVGA GTX 480 with Backplate/Bracket SuperClocked
    -Creative Soundblaster X-Fi Xtreme Music
    -Corsair TX650 (650W)
    -Cooler Master CM 690 case.
    -Microsoft Windows 7 X64.
    -120GB OCZ SSD & 4 500GB SATA HDs

  5. #25
    Chike is offline Senior Member
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    Default Re: EP45-DS3R & E8400 & 2x2GB 1066MHz - Overclocking help required.

    The specified tRFC in the EPP profile is 68, some modules has lower valuie so they might work with 52.
    At this stage it's not worth dealing with memory fine tuning at all. I strongly recommend to use the XMP with all timings on auto. When you increase FSB timings need to me adjusted, either down or up depending if the memory will be overclocked or underclockedm and BIOS does it just fine saving you the need to guess them, for all timings other then CAS latency which is preserved and may need to be changed manually.
    It looks that the only difference between the XMP profile and the standard JEDEC for these modules is the standard timings even though the numbers for the advanced timings appear to be different, so setting XMP profile1 will only make difference with standard timings on auto.
    When you done overclocking the CPU you can have the time tweaking memory if you like.

  6. #26
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    Default Re: EP45-DS3R & E8400 & 2x2GB 1066MHz - Overclocking help required.

    Well i ran tests over night, about 10 hours of testing in all, no failures, no high temps. 6hrs straight on OCCT on medium set and several 1 hr tests on small & large data sets and 2 hours sim running with CPU @ 100%. All looks sweet.

    So here is my present BIOS.

    Code:
    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ..................: 	Auto
    CPU Clock Ratio ..........................: 	9x
    Fine CPU Clock Ratio......................:	0
    CPU Frequency ............................:	3.6Ghz
    
    
    Clock Chip Control 
    Standard Clock Control
    CPU Host Clock Control..................: 	[Enabled] 
    CPU Host Frequency (Mhz) ...............:	400 Mhz
    PCI Express Frequency (Mhz) ............:	100
    C.I.A.2 ................................:	[Disabled]
    
    
    Advanced Clock Control [Press Enter]
    CPU Clock Drive...........................: <<< 800
    PCI Express Clock Drive...................: <<< 900
    CPU Clock Skew (ps).......................: <<< 
    MCH Clock Skew (ps).......................: <<< 
    
    
    DRAM Performance Control
    Performance Enhance...................: 	[STANDARD]
    Extreme Memory Profile (X.M.P.).......:		[Disabled]
    (G)MCH Frequency Latch................:		[Auto]
    System Memory Multiplier .............:		[2.66D]
    Memory Frequency (Mhz) ...............:		1066 	1066
    DRAM Timing Selectable ...............: 	[Manual]
    
    Standard Timing Control
    CAS Latency Time........................	5	[5]
    tRCD .........................................	7	[5]
    tRP'...........................................	7	[5]
    tRAS..........................................	24	[15]
    
    
    Advanced Timing Control
    tRRD........................................... 4 [AUTO]
    tWTR..........................................	4 [AUTO]
    tWR............................................	8 [AUTO]
    tRFC...........................................	68[AUTO]
    tRTP...........................................	4 [AUTO]
    Command Rate (CMD) ....................:	0 [AUTO]
    
    Driving Strength Profiles
    Driving Strength ............................
    
    Driving Setting Both Channels.................;	All AUTO
    
    Timing Settings........................
    
    Channel A
    Static tRead Value.........................:	10 [7]
     tRD Phase0 Adjustment...................:	0 [Auto]
    tRD Phase1 Adjustment...................:	0 [Auto]
     tRD Phase2 Adjustment .................:	0 [Auto]
     tRD Phase3 Adjustment..................:	0 [Auto]
    
    Trd2rd(Different Rank)....................:	8 [Auto]
    Twr2wr(Different Rank)...................:	8 [Auto]
    Twr2rd(Different Rank)...................:	7 [Auto]
    Trd2wr(Same/Diff Rank)..................:	9 [Auto]
    Dimm1 Clock Skew Control...............:	Auto  ps
    Dimm2 Clock Skew Control...............:	Auto  ps
    DDR Write Training.....................:	Auto
    
    Channel B
    Static tRead Value.........................:	10 [7]
     tRD Phase0 Adjustment...................:	0 [Auto] 
    tRD Phase1 Adjustment...................:	0 [Auto]
     tRD Phase2 Adjustment .................:	0 [Auto]
     tRD Phase3 Adjustment..................:	0 [Auto]
    
    Trd2rd(Different Rank)....................:	8 [Auto]
    Twr2wr(Different Rank)...................:	8 [Auto]
    Twr2rd(Different Rank)...................:	7 [Auto]
    Trd2wr(Same/Diff Rank)..................:	9 [Auto]
    Dimm1 Clock Skew Control...............:	Auto  ps
    Dimm2 Clock Skew Control...............:	Auto  ps
    DDR Write Training.....................:	Auto
    Motherboard Voltage Control
    
    CPU
    CPU Vcore….……….........................: 	1.2375	[1.2375]
    CPU Termination….......................: 	1.200	[1.200]
    CPU PLL………………….........................:	1.500 	[1.500] 
    CPU Referen.………….......................:	0.760	[AUTO]
    CPU Reference2………,,0.800V*.............:	
    
    MCH/ICH
    MCH Core……………..........................:	1.100	[1.200]  
    MCH Reference….……......................:	0.760	[AUTO]
    MCH/DRAM Ref.….........................:	0.900	[AUTO]
    ICH I/O………………..........................:	1.500	[1.500]
    ICH Core…………...……1.100V................:
    
    DRAM
    DRAM Voltage ……....1.800V..............:	1.800	[2.100] 
    DRAM Termination .…0.900V..............:	0.900	[AUTO]
    Channel A Reference 0.900V.............:	0.900	[AUTO]
    Channel B Reference 0.900V.............:	0.900	[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] 
    Integrated Peripherals
    Legacy USB Storage Detect .............:	[Disabled]
    And here is the other relevant info:






    So what speed do you think i should try and achieve and how would you go about it at this stage? Just to reiterate, i really don't want to stress my PC to the max, I'm after a balance of power, stability and longevity. I do a lot of work on this PC and would prefer to be conservative rather than rash.



    Cheers
    Last edited by MadTommy; 08-21-2009 at 06:09 PM.
    -Intel Core2 Duo CPU E8400 @ 3.60GHz
    -Gigabyte EP45-DS3R Bios version F10
    -Artic Cooling, Freeze 7 pro
    -Corsair 2x2GB 1066MHz (CM2X 2048- - 8500 C5) (5-5-5-15)
    -EVGA GTX 480 with Backplate/Bracket SuperClocked
    -Creative Soundblaster X-Fi Xtreme Music
    -Corsair TX650 (650W)
    -Cooler Master CM 690 case.
    -Microsoft Windows 7 X64.
    -120GB OCZ SSD & 4 500GB SATA HDs

  7. #27
    Chike is offline Senior Member
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    Default Re: EP45-DS3R & E8400 & 2x2GB 1066MHz - Overclocking help required.

    It's realy up to you, you said you want 4GHz that's 445FSB compromising memory speed or overclocking it.
    427FSB will be 3.84HGz compromizing memory speed but with close to optimal lower timings.
    Don't forget to save you current settings in a BIOS profile.

  8. #28
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    Default Re: EP45-DS3R & E8400 & 2x2GB 1066MHz - Overclocking help required.

    Quote Originally Posted by Chike View Post
    Don't forget to save you current settings in a BIOS profile.
    Yeah i've been saving my configs as i go

    Hmm unless i'm mistaken i'd only want to increase CPU speed if i was able to keep memory speed at least as high as stock. Unless i'm mistaken it would seem daft to overclock one only to have to underclock the other.

    "Optimal lower timings" sound good and I'd be happy with 3.84Ghz.

    From what i've read about overclocking the E8400 you get the biggest performance increase in ratio to voltage/temp going from 3 - 3.6 and once over 3.85 you get much larger temp increases for ever decreasing speed increases.

    So 427FSB @ 3.84HGz sounds like a good target.

    Rather than me taking pot shots at it, what do you suggest i do?
    -Intel Core2 Duo CPU E8400 @ 3.60GHz
    -Gigabyte EP45-DS3R Bios version F10
    -Artic Cooling, Freeze 7 pro
    -Corsair 2x2GB 1066MHz (CM2X 2048- - 8500 C5) (5-5-5-15)
    -EVGA GTX 480 with Backplate/Bracket SuperClocked
    -Creative Soundblaster X-Fi Xtreme Music
    -Corsair TX650 (650W)
    -Cooler Master CM 690 case.
    -Microsoft Windows 7 X64.
    -120GB OCZ SSD & 4 500GB SATA HDs

  9. #29
    Chike is offline Senior Member
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    Default Re: EP45-DS3R & E8400 & 2x2GB 1066MHz - Overclocking help required.

    Quote Originally Posted by MadTommy View Post
    Hmm unless i'm mistaken i'd only want to increase CPU speed if i was able to keep memory speed at least as high as stock. Unless i'm mistaken it would seem daft to overclock one only to have to underclock the other.
    Not nesessarally, there are differences between memory speed within limits. Unfortunately your ram is rated 1066 and there are only two multipliers for the 400MHz strap, others strap multipliers like 2.40B may work but not very likely.
    Make a memory benchmark so we can compare memory performances.

    Quote Originally Posted by MadTommy
    "Optimal lower timings" sound good and I'd be happy with 3.84Ghz.
    I was just looking to find which memory speed with CL 4 timings will be eqivalent to DDR-1066 with CL 5.
    4/5 = 0.8, 0.8 * 1066 = 852.8 = FSB426/7 with 2.00D multiplier.

    Quote Originally Posted by MadTommy
    From what i've read about overclocking the E8400 you get the biggest performance increase in ratio to voltage/temp going from 3 - 3.6 and once over 3.85 you get much larger temp increases for ever decreasing speed increases.

    So 427FSB @ 3.84HGz sounds like a good target.

    Rather than me taking pot shots at it, what do you suggest i do?
    As befor I suggest to lower CPU Ratio to 8/8.5 to get memory/FSB stable without increasing CPU speed and then up the multiplier.
    Try 426FSB with 8.5 CPU Ratio (maybe a tick or two up vcore) with 2.00D mulriplier see if it boots, then try standard timings 4-4-4-12/13, increase of Static tRead may be needed. If you get it running to some stability tests then you can up CPU Ration to 9 and see what changes it requires, hopefully a small increase of vcore only.
    You are still at stock vcore right?

  10. #30
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    Default Re: EP45-DS3R & E8400 & 2x2GB 1066MHz - Overclocking help required.

    Quote Originally Posted by Chike View Post
    Make a memory benchmark so we can compare memory performances.
    Will do.
    Quote Originally Posted by Chike View Post
    I was just looking to find which memory speed with CL 4 timings will be eqivalent to DDR-1066 with CL 5.
    4/5 = 0.8, 0.8 * 1066 = 852.8 = FSB426/7 with 2.00D multiplier.
    I can't say i really understand this.. but i'll do some digging about & read up.
    Quote Originally Posted by Chike View Post
    As befor I suggest to lower CPU Ratio to 8/8.5 to get memory/FSB stable without increasing CPU speed and then up the multiplier.
    Try 426FSB with 8.5 CPU Ratio (maybe a tick or two up vcore) with 2.00D mulriplier see if it boots, then try standard timings 4-4-4-12/13, increase of Static tRead may be needed. If you get it running to some stability tests then you can up CPU Ration to 9 and see what changes it requires, hopefully a small increase of vcore only.
    Ok sounds good.
    Quote Originally Posted by Chike View Post
    You are still at stock vcore right?
    Yes i am.

    -Intel Core2 Duo CPU E8400 @ 3.60GHz
    -Gigabyte EP45-DS3R Bios version F10
    -Artic Cooling, Freeze 7 pro
    -Corsair 2x2GB 1066MHz (CM2X 2048- - 8500 C5) (5-5-5-15)
    -EVGA GTX 480 with Backplate/Bracket SuperClocked
    -Creative Soundblaster X-Fi Xtreme Music
    -Corsair TX650 (650W)
    -Cooler Master CM 690 case.
    -Microsoft Windows 7 X64.
    -120GB OCZ SSD & 4 500GB SATA HDs

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