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Thread: LSD, a little GA-EP45C-DS3R overclocking help?




  1. #11
    Lsdmeasap's Avatar
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    Default Re: LSD, a little GA-EP45C-DS3R overclocking help?

    What CPU is this? And What Freq are you trying to run it now? 1.45 is likely only 1.4 or a bit less in windows but at 3.6 if that is what you are trying for you dont need that much unless it is a older 65nm CPU, then you may need more.

    And yes you may need some ram timings set higher to get a initial boot, then you will be able to more freely changes things.

    Can you post what you are trying that fails exactly.

    And while you wait, one thing you can do to be sure your CPU does not need more volts is set all the ram on Auto, manually set the MCH voltage and ram voltage. That should let you load windows if you have enough Vcore set

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    Default Re: LSD, a little GA-EP45C-DS3R overclocking help?

    CPU is an e7200 (45nm) and yeah I'm trying for 3.6, with all the settings you have suggested in this thread. I'm currently running 9.5 multi and 333 FSB with everything practically stock, no problem. Nothing has worked so far at all when I try for FSB @ 400, so I don't know if it's the board holding me back, my CPU or what. I'll try setting the RAM to Auto and see what happens.

  3. #13
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    Default Re: LSD, a little GA-EP45C-DS3R overclocking help?

    Yes, please do then so you can see if you are trying enough volts. Then if it boots see how low you can set the CPU voltage before it fails, then raise it back up a bit.

    Then move onto the things I suggested. Start with MCH latch 400 by itself, then reboot. If all is well set Driving strength profile to 800, then reboot. Then set Static Tread 8-10 and reboot. Then you can move onto the rest of the ram timings all at once.

    And please use FSB 402 not 400

    You may also want to adjust these voltages as well once you find a stable Vcore >>>
    CPU Termination…..... 1.200V*.......: <<< 1.3-1.36
    CPU PLL…………………....1.500V*.......: <<< 1.5-1.6
    CPU Referen.…………....0.755V*.......: <<< .61% Of Vtt (Termination above)
    CPU Reference2………,,0.800V*.......:<<< .67% Of Vtt (Termination above)

  4. #14
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    Default Re: LSD, a little GA-EP45C-DS3R overclocking help?

    OK, hopefully I will have time to get started with this tonight, but I may have to play a little TF2 instead. Do you think it may be possible that my PSU (500w Antec) or HSF (large Gigabyte unit I bought about a year ago, I forget the exact model but surely its better than stock) could be part of the problem? That seems unlikely to me, as everything seems rock solid w/ FSB at 333 and multi at 9.5, even with stress testing, and temps are OK as well. On top of that its only running a few seconds and rebooting with the higher settings before posting so I would doubt that is enough time for it to have overheated due to the HSF being too weak, but I'm not certain.

    Anyway, thanks for sticking with me on this. I've seen plenty of people claiming to get a whole lot more out of this chip than I'm going for, so around 3.5GHz for daily use dosn't seem unreasonable. BTW, how do you like your new P45 (bet you went for the extreme, huh)?

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    Default Re: LSD, a little GA-EP45C-DS3R overclocking help?

    Did some more testing. Seems that 1.20625V is the MAX CPU Vcore I can set and still get this thing to post. Does this indicate a problem with the HSF or maybe the PSU? Seems like most crank it a lot higher (1.35 or more) with few issues.

    I set MCH latch to 400, rebooted posted and loaded windows. Then, I did the same for Driving strength profile to 800 with a reboot into windows, and then static Tread to 10 and rebooted into windows. Everything seemed OK (did not stress test, was mainly making sure it would post). Then manually set all RAM timings with your previous suggestions to the highest values, and it still posted and loaded windows.

    All at once, without touching the FSB (still have it @ 333 from my mild OC), I changed only the Vcore to 1.35, CPU termination to 1.34 and CPU PLL to 1.56, (leaving the CPU referances untouched) and finally MCH Core to 1.3. Saved, rebooted and no post.

    At this point I left everything else alone and adjusted CPU Vcore all the way back to 1.20625V (and MCH Core Back to stock somewhere in there), 1 or 2 increments at a time, and it finally posted. So, it would seem 1.20625 is the highest CPU Vcore I can get right now.

    Just to see what would happen, I left everything like that and upped the FSB to 402, rebooted and it posted. I let windows load and checked the core temp w/ RealTemp, both were about 31 degrees at idle. Tried to run a blend test in Orthos and it failed immediately, so I'm sure the voltage is way too low to run the FSB that high.

  6. #16
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    Default Re: LSD, a little GA-EP45C-DS3R overclocking help?

    You should be able to adjust Vcore higher then that for sure. Can you try a high FSB with the ram all on auto except the above voltage settings? And of course up the vcore

    And try with MCH 333 this time around and see if you can get any further, I dont think you Heatsink or PSU is any part of the problem. A double or triple boot is just incorrect settings is all nothing to do with power or heat

    Most initial issues with P45 seem to me to be ram settings, then once you finally get them started you can change at will. it is just getting that initial manual settings to go is the hard part

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    Default Re: LSD, a little GA-EP45C-DS3R overclocking help?

    Quote Originally Posted by Lsdmeasap View Post
    You should be able to adjust Vcore higher then that for sure. Can you try a high FSB with the ram all on auto except the above voltage settings? And of course up the vcore
    Sure thing. I'll put all RAM settings back to auto except voltage. Mine are rated for 2.0-2.1, so would 2.1 be the safer bet here? Also should I set even the main timings to auto? I'm pretty sure another user with this RAM mentioned running 5-5-5-15 insteasd of 4-4-4-12 in order to OC, but I tried that this last time and it didn't seem to be the cause of my not being able to post with higher Vcore. Should I go straight for 402 fsb or try something smaller first like 366?


    Quote Originally Posted by Lsdmeasap View Post
    And try with MCH 333 this time around and see if you can get any further, I dont think you Heatsink or PSU is any part of the problem. A double or triple boot is just incorrect settings is all nothing to do with power or heat
    I kinda figured that it would have to run for more than around 3 seconds for heat to be an issue lol. The PSU and HSF coming from an older build just kinda makes me a little nervous, even though I know they arn't total junk. So which should be more likely to get up and running for MCH, 333 or 400?


    Quote Originally Posted by Lsdmeasap View Post
    Most initial issues with P45 seem to me to be ram settings, then once you finally get them started you can change at will. it is just getting that initial manual settings to go is the hard part
    Thankfully there are saved CMOS profiles. Otherwise I doubt I could tolerate this process! Hopefully I will have time tonight to give it another shot.

  8. #18
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    Default Re: LSD, a little GA-EP45C-DS3R overclocking help?

    Sure 2.0-2.1 would be better most likely anyway. 2.2 is HOT on the ram, especially with those paper thin heatsinks. I always recommend to never run 2.2V unless you have a fan Directly on the ram. 2.1-2.2 is just the warrantied amount, generally not what is needed and for sure not at stock speeds

    Well it depends on what speeds you want to run the ram at, I would say anything over 850-870 MHZ and 444-12 will fail. That does not mean 555-15 is needed though, sometimes 455-12/15 will work, others 544-12/15 will work.

    But yes, for starters when overclocking you may want to set 555-15 or 455-15, and trd of 8 or more.

    I would say at 405 or so use 400 MCH latch for sure. Please remember to set this only and reboot and voltages Can be applied as well, then trd and reboot. Then the rest can be done more at once. Set very high twtr and twr for starters as well (twtr -12, twr-14)

    Ya, I love F11 and F12, lifesaver!!!

    Good luck, and when you post back with or without success please post what settings you are using. And what failed

  9. #19
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    Default Re: LSD, a little GA-EP45C-DS3R overclocking help?

    Just for reference, here is the OC that I run every day that is perfectly stable and passes all the stress tests i have tried:


    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: Auto
    CPU Clock Ratio ..........................: 9
    Fine CPU Clock Ratio.....................:.5
    CPU Frequency ...........................: 3.16GHz


    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control..................: [Enabled]
    CPU Host Frequency (Mhz) ............: 333Mhz
    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)....................: <<< 0
    MCH Clock Skew (ps)...................: <<< 0


    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) ..............: 800
    DRAM Timing Selectable ................: [Manual]

    Standard Timing Control
    CAS Latency Time........................4
    tRCD .........................................4
    tRP'...........................................4
    tRAS..........................................12

    Advanced Timing Control
    tRRD...........................................[AUTO]
    tWTR..........................................[AUTO]
    tWR............................................[AUTO]
    tRFC...........................................[AUTO]
    tRTP...........................................[AUTO]
    Command Rate (CMD) ....................[AUTO]

    Channel A
    Static tRead Value.........................:[AUTO]
    tRD Phase0 Adjustment...................:[AUTO]
    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]
    Dimm2 Clock Skew Control...............:[AUTO]

    Channel B
    Static tRead Value.........................:[AUTO]
    tRD Phase0 Adjustment...................:[AUTO]
    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….……….........................: 1.20V
    CPU Termination…..... 1.200V*.......: [AUTO]
    CPU PLL…………………....1.500V*.......: [AUTO]
    CPU Referen.…………....0.755V*.......: [AUTO]
    CPU Reference2………,,0.800V*.......:[AUTO]

    MCH/ICH
    MCH Core…………….....1.100V...........: [AUTO]
    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............: 2.0
    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............: [Disabled]
    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................: (I don't have this option here).


    The settings I put in bold are different for the OC I'm trying to get, as follows:


    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: Auto
    CPU Clock Ratio ..........................: 9
    Fine CPU Clock Ratio.....................:0
    CPU Frequency ...........................: 3.61GHz


    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control..................: [Enabled]
    CPU Host Frequency (Mhz) ............: 402Mhz
    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)....................: <<< 100
    MCH Clock Skew (ps)...................: <<< 200

    DRAM Performance Control
    Performance Enhance...................: [STANDARD]
    Extreme Memory Profile (X.M.P.).....: Disabled
    (G)MCH Frequency Latch...............: 333 and 400
    System Memory Multiplier ..............: 2.00
    Memory Frequency (Mhz) ..............: 804
    DRAM Timing Selectable ................: [Auto]

    Standard Timing Control
    CAS Latency Time........................[Auto]
    tRCD .........................................[Auto]
    tRP'...........................................[Auto]
    tRAS..........................................[Auto]

    Advanced Timing Control
    tRRD...........................................[AUTO]
    tWTR..........................................[AUTO]
    tWR............................................[AUTO]
    tRFC...........................................[AUTO]
    tRTP...........................................[AUTO]
    Command Rate (CMD) ....................[AUTO]

    Channel A
    Static tRead Value.........................:[AUTO]
    tRD Phase0 Adjustment...................:[AUTO]
    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]
    Dimm2 Clock Skew Control...............:[AUTO]

    Channel B
    Static tRead Value.........................:[AUTO]
    tRD Phase0 Adjustment...................:[AUTO]
    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….……….........................: 1.20V
    CPU Termination…..... 1.200V*.......: [AUTO]
    CPU PLL…………………....1.500V*.......: [AUTO]
    CPU Referen.…………....0.755V*.......: [AUTO]
    CPU Reference2………,,0.800V*.......:[AUTO]

    MCH/ICH
    MCH Core…………….....1.100V...........: 1.2v
    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............: 2.0 and 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................: (I don't have this option here).

    With these settings, it will not post and reboots itself 3 times or so until it finally posts with last good config. It would still post and boot into windows, even with 402 FSB (but instantly fail Orthos) before I enabled No-Execute Memory Protect under advanced settings and
    CPU Clock Skew (ps) to 100 instead of 0 and MCH Clock Skew (ps) to 200 instead of 0 under Advanced Clock Control. When I leave those as they were before so that I can still get it to post, if I set CPU Vcore to any value over 1.20625V the system will not post and will reboot until it reverts to last good config. Having all RAM values set to auto does not seem to help, and anytime I try to push the Vcore past 1.20625V, regardless of other settings, it will not post and go into a reboot cycle. As far as the order in which I have changed things, I do the MCH latch, reboot, FSB, reboot, then Vcore and reboot.

  10. #20
    Lsdmeasap's Avatar
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    Default Re: LSD, a little GA-EP45C-DS3R overclocking help?

    Ya, Auto is not going to get you in there, have you took some time and tried the first settings on page one I gave you lately. Don't give up, set things timingwise high until you get in there, then you will be able to lower then

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