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Thread: E8400, GA-EP45-UD3R, HyperX 1066: Wanting to get 500MHz FSB stable




  1. #21
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    Default Re: E8400, GA-EP45-UD3R, HyperX 1066: Wanting to get 500MHz FSB stable

    When you are modifying reference volt settings, are you following Lsdme's procedure in his how-to guide which basically says:

    1) Set VTT to its normal value.
    2) Set the appropriate reference setting values.
    3) Set VTT back to your desired setting.

    I'm pretty sure that this procedure is performed in a similar manner when, you're modifying DRAM reference settings.
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  2. #22
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    Default Re: E8400, GA-EP45-UD3R, HyperX 1066: Wanting to get 500MHz FSB stable

    Yes all reference voltages must be set with their respective "Controlling" Voltages at stock.

    CPU Termination (Vtt) Automatically changes the following if manually set >>>

    CPU Reference Voltage (.63% of Default Vtt/1.20) .76 ET
    CPU Reference2 Voltage (.67% of Default Vtt/1.20) .80 ET
    MCH Reference Voltage (.63% of Default Vtt/1.20) .76 ET

    DRAM Voltage Automatically changes the following if manually set >>>

    MCH/DRAM Reference Voltage (.50% of Default Dram Voltage)
    DRAM Termination Voltage (.50% of Default Dram Voltage)
    Channel A Reference Voltage (.50% of Default Dram Voltage)
    Channel B Reference Voltage (.50% of Default Dram Voltage)

    So for example if you want to try 1.28 Vtt with .74 MCH Ref you must set Vtt to 1.20 first, then go set MCH Ref to .74. Then go raise Vtt back to 1.28 and the MCH Ref will self adjust.

    Here is a guide with image examples >>>>
    http://forums.tweaktown.com/f69/how-...asytune-29746/

    A few members say it is confusing how I word things but I just have not had time to change it up yet. The images should get it explained though if the above does not make sense to you. The same applies for all the other Ref voltages mentioned above Vtt controls 4 of them and Dram voltage controls the 4 others

  3. #23

    Default Re: E8400, GA-EP45-UD3R, HyperX 1066: Wanting to get 500MHz FSB stable

    When I got the Illegal Sumout error in Prime, I asked about it and Psycho 101 told me that vTerm should always be lower than your vDroop, therefore, lower than your vCore.

    I made the adjustment and got 24hrs Stable.

    Just a thought.

    I am following your progress as I, too, am trying to get to 500FSB.
    Quote Originally Posted by Alex St. John
    Consider for a moment that what we think of as “intelligence” is the byproduct of a computing architecture that depends on massive parallelism to interact with the world in real time without stalling for progress bars. If our ancestors’ brains had depended on running Vista on current dual-core processors for their survival, they would have been eaten by bears.

    Best Quote Ever...
    Quote Originally Posted by Psycho101
    Obey the one and only rule without question when you overclock.... don't cause a fire. Fires are hot and burny... not good.
    Intel E8400 EO@445x9--Gigabyte EP45-UD3P v1.1 ~ F9--EVGA 9800GT @ 700/1750/1100--8GB Gskill 1066

  4. #24
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    Default Re: E8400, GA-EP45-UD3R, HyperX 1066: Wanting to get 500MHz FSB stable

    After talking to a gigabyte REP about the abilities of the MCH, I was told that the MCH will stay stable at 450MHz with the proper volts, but the MCH was tested at gigabyte @ 500-533MHz, Gigabyte says "it wont stay stable regardless of the volts used". The MCH was not designed to handle 2000MHz, it tops out at 482MHz stable, states gigabyte! Safe would be an 1800MHz FSB, which Gigabyte said would be stable, but demanding on long term performance and may degrade the life of the MCH. So I took Gigabytes advice and am now going to stay away from a 500MHz FSB until the proper, stable, MCH can be developed. In which the Gigabyte rep said to wait about 6 more months. Would this mean a better, stronger board is about to release? I'm not sure if that is the case, but I'll be watching!

    So what I did was put the CPU back down to 400MHz*9 multiplier, 1.169vcore(CPUID) than put my RAM at 2.66D for 1066MHz making 3:4, clocks at 5-5-5-14, 2.2v. Now I will work my way up to 450MHz, at 900MHz this should give me a 1:1.33, which should work, maybe!

    I'll just keep posting my work-ups as I progress. If you have more advice, I'll be pleased to accept it, as you guys have done wonders for helping me understand OC'ing better.

    For this I really am in appriciation, thanks guys,
    Mark-
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  5. #25

    Default Re: E8400, GA-EP45-UD3R, HyperX 1066: Wanting to get 500MHz FSB stable

    Quote Originally Posted by Alex St. John
    Consider for a moment that what we think of as “intelligence” is the byproduct of a computing architecture that depends on massive parallelism to interact with the world in real time without stalling for progress bars. If our ancestors’ brains had depended on running Vista on current dual-core processors for their survival, they would have been eaten by bears.

    Best Quote Ever...
    Quote Originally Posted by Psycho101
    Obey the one and only rule without question when you overclock.... don't cause a fire. Fires are hot and burny... not good.
    Intel E8400 EO@445x9--Gigabyte EP45-UD3P v1.1 ~ F9--EVGA 9800GT @ 700/1750/1100--8GB Gskill 1066

  6. #26
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    Default Re: E8400, GA-EP45-UD3R, HyperX 1066: Wanting to get 500MHz FSB stable

    After talking to a gigabyte REP about the abilities of the MCH, I was told that the MCH will stay stable at 450MHz with the proper volts, but the MCH was tested at gigabyte @ 500-533MHz, Gigabyte says "it wont stay stable regardless of the volts used". The MCH was not designed to handle 2000MHz, it tops out at 482MHz stable, states gigabyte! Safe would be an 1800MHz FSB, which Gigabyte said would be stable, but demanding on long term performance and may degrade the life of the MCH. So I took Gigabytes advice and am now going to stay away from a 500MHz FSB until the proper, stable, MCH can be developed. In which the Gigabyte rep said to wait about 6 more months. Would this mean a better, stronger board is about to release? I'm not sure if that is the case, but I'll be watching!
    Not really wanting to speak ill of the Gigabyte rep you spoke to, but it sounds like he's either talking out of his back side, or is being deliberately over cautious.

    I've seen this board being able to run a 32M prime run at 605 MHS FSB, and there are various accounts of people running 533 plus, stable 24/7. How high you can get your FSB depends as much on the CPU that has to communicate down it as it does on the P45 chip itself. I certainly wouldn't take 450 FSB as a maximum. I have a quad core running 486FSB solid as a rock, and by that I mean 50 runs if IBT, 12 hours Prime95 Small and Large FFT and 24 hours Blend.

    The unfortunate fact is that while reps are good at selling, they often don't have the advanced product knowledge you'd expect, and probably haven't ever overclocked a PC in there lives.
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  7. #27
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    Default Re: E8400, GA-EP45-UD3R, HyperX 1066: Wanting to get 500MHz FSB stable

    Quote Originally Posted by pdxer View Post
    After talking to a gigabyte REP about the abilities of the MCH, I was told that the MCH will stay stable at 450MHz with the proper volts, but the MCH was tested at gigabyte @ 500-533MHz, Gigabyte says "it wont stay stable regardless of the volts used". The MCH was not designed to handle 2000MHz, it tops out at 482MHz stable, states gigabyte! Safe would be an 1800MHz FSB, which Gigabyte said would be stable, but demanding on long term performance and may degrade the life of the MCH. So I took Gigabytes advice and am now going to stay away from a 500MHz FSB until the proper, stable, MCH can be developed. In which the Gigabyte rep said to wait about 6 more months. Would this mean a better, stronger board is about to release? I'm not sure if that is the case, but I'll be watching!

    So what I did was put the CPU back down to 400MHz*9 multiplier, 1.169vcore(CPUID) than put my RAM at 2.66D for 1066MHz making 3:4, clocks at 5-5-5-14, 2.2v. Now I will work my way up to 450MHz, at 900MHz this should give me a 1:1.33, which should work, maybe!

    I'll just keep posting my work-ups as I progress. If you have more advice, I'll be pleased to accept it, as you guys have done wonders for helping me understand OC'ing better.

    For this I really am in appriciation, thanks guys,
    Mark-
    Pdxer,

    How reputable do you think this rep is? This news kind of freaks me out. I am one that is running 500+Mhz FSB stable.. I have a rev 1.1 of the GA-EP45-UD3P so maybe it has a newer MCH. If true this is a pretty huge statement from Gigabyte IMHO. The MCH is made by Intel so this would be across all motherboards would it not be? I have barely uped it's voltages.

    MCH/ICH from 1.100 to 1.220
    MCH Ref from 0.760 to 0.778
    MCH/DRAM ref 0.910
    ICH I/O from 1.500 to 1.590
    ICH Core from 1.100 to 1.20

    but what you are saying it is more the high frequency that is the issue... Maybe I need to put my finger on the heatsink and see how hot it's getting... Nope I did the Lsdmeasap 10 second finger test and had no issue holding my finger on it for 20 seconds.
    Still REALLY want to know if this is true.

    -devoh
    Last edited by devoh; 05-20-2009 at 08:21 AM.
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  8. #28
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    Default Re: E8400, GA-EP45-UD3R, HyperX 1066: Wanting to get 500MHz FSB stable

    Didn't want to be so blunt in my original comment, but to avoid any confusion, the Gigabyte rep who supposedly (I say that just to cover myself) said no more than a 482 FSB will be stable is talking out of his backside.

    This is further justified by the fact he also supposedly said "Wait 6 more months". It's next to certain that Intel won't be making any more chipsets supporting Core 2 CPUs. They are moving onward with Core i7 for the enthusiast market and Core i5 will be replacing the Core 2 line in the market place. P45 and X48 will almost certainly be the last chipsets for Core 2.... unless they decide to make a really cheap cut down version in a while to shift any remaining stock of CPUs.

    It is definitely not true. If someone did say this, they should know better than to second guess the maximum frequency of a component they had no part in the development and manufacture of (ie a P45 die, I know Giga designed and built the UD3P but that's different).

    The maximum frequency for any MCH chip is what ever you can get it to, on sensible voltages and good temps. I'm running 1.38V MCH Core with a 486 FSB and it's barely even warm.
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  9. #29
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    Default Re: E8400, GA-EP45-UD3R, HyperX 1066: Wanting to get 500MHz FSB stable

    I've withheld commenting on the rep's 428MHz statement, my golden rule is to never PWPO (Post While Pissed Off).
    The only EP4x boards that I've seen that don't overclock at speeds higher than 420MHz are some of the less expensive "L" models or motherboards with integrated graphics chipsets.
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  10. #30
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    Default Re: E8400, GA-EP45-UD3R, HyperX 1066: Wanting to get 500MHz FSB stable

    Quote Originally Posted by profJim View Post
    I've withheld commenting on the rep's 428MHz statement, my golden rule is to never PWPO (Post While Pissed Off).
    The only EP4x boards that I've seen that don't overclock at speeds higher than 420MHz are some of the less expensive "L" models or motherboards with integrated graphics chipsets.

    Well I feel better and agree that it really makes no sense for Intel to make a new MCH for this line of chips. If it was the MCH it would be effecting all manufactor's so I think we would have heard something by now. I'm running 515Mhz FSB now and it seems real stable after 12 hrs of Memtest86+ and 4 hours of IBT and Prime95. I can go higher but not without losing my 9 tRD and some more voltage bumps. My goal is only 4 to 4.2 Ghz.. So 515 x 8 = 4120 or I could go 500 x 8.5 = 4250 (probably pushing my luck there) which is pretty sweet if the cpu can take it.

    -devoh
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