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Thread: issue over clocking 965 be

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    Default issue over clocking 965 be

    I've ran into a wall heres whats going on, im trying to bring my fsb to 300mhz ive seen others who have with similar setups. here is my target:
    FSB 300 mhz
    cpu 3600 mhz multiplier 12x
    HT 2400 mhz multiplier 8x
    ram 1600 mhz

    volts required unknown! this info should help in you assisting me. current info listed adjusted through bios, stability test ran in AMD OVERDRIVE.

    TY in advance,
    ean

    Current System Build:
    MOBO: MSI 790FX GD-70 (non Wiki Edition)
    CPU: AMD Phenom II 965 BE (140w) OPN: HDZ965FBGIBOX
    RAM: OCZ DDR3 Black Edition duel channel 1600mhz 8-8-8-24 @ 1.65v command rate = 2T (OCZ3BE1600C8LV4GK)
    Graphic Card: XFX ATI 4890 XXX edition 1gb gddr5 (Clock 925mhz GPU 1000MHZ GDDR5)
    PSU: ANTEC TRUE POWER QUATTRO 850w
    HD: 1TB Seagate Barracuda 32mb buffer
    CPU HEAT SINK: ZALMAN 100% copper
    OS: WIN7 64-bit Ultimate
    Current Clocks:
    FSB: 240MHZ
    CPU: 3600MHZ (Core Multiplier 15x) Volts 1.425
    HT link speed: 2400MHZ (HT Multiplier 10x) Volts 1.275
    Memory Frequency: 800MHZ volts 1.65
    PCIe Speed: 100MHZ
    SB Speed: 100MHZ
    Current Setup TMPIN TEMPS: At stability test 59th min outta 60 min test
    TMPIN1 59C
    TMPIN2 55C
    TMPIN3 44C
    TMPIN4 (Dont Exist) Default 294.7C

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    Quote Originally Posted by Levantine0507 View Post
    I've ran into a wall heres whats going on, im trying to bring my fsb to 300mhz ive seen others who have with similar setups. here is my target:
    FSB 300 mhz
    cpu 3600 mhz multiplier 12x
    HT 2400 mhz multiplier 8x
    ram 1600 mhz

    volts required unknown! this info should help in you assisting me. current info listed adjusted through bios, stability test ran in AMD OVERDRIVE.

    TY in advance,
    ean

    Current System Build:
    MOBO: MSI 790FX GD-70 (non Wiki Edition)
    CPU: AMD Phenom II 965 BE (140w) OPN: HDZ965FBGIBOX
    RAM: OCZ DDR3 Black Edition duel channel 1600mhz 8-8-8-24 @ 1.65v command rate = 2T (OCZ3BE1600C8LV4GK)
    Graphic Card: XFX ATI 4890 XXX edition 1gb gddr5 (Clock 925mhz GPU 1000MHZ GDDR5)
    PSU: ANTEC TRUE POWER QUATTRO 850w
    HD: 1TB Seagate Barracuda 32mb buffer
    CPU HEAT SINK: ZALMAN 100% copper
    OS: WIN7 64-bit Ultimate
    Current Clocks:
    FSB: 240MHZ
    CPU: 3600MHZ (Core Multiplier 15x) Volts 1.425
    HT link speed: 2400MHZ (HT Multiplier 10x) Volts 1.275
    Memory Frequency: 800MHZ volts 1.65
    PCIe Speed: 100MHZ
    SB Speed: 100MHZ
    Current Setup TMPIN TEMPS: At stability test 59th min outta 60 min test
    TMPIN1 59C
    TMPIN2 55C
    TMPIN3 44C
    TMPIN4 (Dont Exist) Default 294.7C

    300 ON HTT(FS will not work to get max overclock. I have overclocked 5 Phenoms and the sweet spot is 210-230(it does depend on motherboard. Some may get higher HTT). The chip seems to get unstable after that or harder to get stable. Usually higher HTT needs more voltage. On my 965 C3 revision i was arounf 220 on HTT with a 4.14Ghz stable OC. You should keep Hypertransport frequency around 2000-2200MHz again to keep stability. Higher Hypertransport really does not yeild more performance whereas higher NB frequencies will. The sweet spot for NB is around 2600MHz although I got as high as 2800MHz. Dont' be afraid to raise memory frequency to at least 1333MHz at stock voltage and timings.Why are you running it at 800MHz? that is too low of an underclcok on memory.


    I will also say, dump the Zalman heatdink. Most of the Zalmans do not cool good on tri-cores and quad cores. It will inj=hibit you from overclocking the 965 where it should be at 4Ghz.

    Voltages on the Phenom II 965 range from 1.45V to 1.6V depending on chip and Vdroop.

    Edit: I just saw you have a C2 stepping and 3.95GHz is pretty much max for the chip. Almost nobody got to 4Ghz with the C2 revision due to the IMC.
    Last edited by Drdeath; 23-05-2010 at 20:55.

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    Levantine0507 (31-05-2010)

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    Quote Originally Posted by Drdeath View Post
    300 ON HTT(FS will not work to get max overclock. I have overclocked 5 Phenoms and the sweet spot is 210-230(it does depend on motherboard. Some may get higher HTT). The chip seems to get unstable after that or harder to get stable. Usually higher HTT needs more voltage. On my 965 C3 revision i was arounf 220 on HTT with a 4.14Ghz stable OC. You should keep Hypertransport frequency around 2000-2200MHz again to keep stability. Higher Hypertransport really does not yeild more performance whereas higher NB frequencies will. The sweet spot for NB is around 2600MHz although I got as high as 2800MHz. Dont' be afraid to raise memory frequency to at least 1333MHz at stock voltage and timings.Why are you running it at 800MHz? that is too low of an underclcok on memory.


    I will also say, dump the Zalman heatdink. Most of the Zalmans do not cool good on tri-cores and quad cores. It will inj=hibit you from overclocking the 965 where it should be at 4Ghz.

    Voltages on the Phenom II 965 range from 1.45V to 1.6V depending on chip and Vdroop.

    Edit: I just saw you have a C2 stepping and 3.95GHz is pretty much max for the chip. Almost nobody got to 4Ghz with the C2 revision due to the IMC.
    The ram is at 1600 mhz total value but aod reads 800mhz per channel
    in bios set up and boot screen read as 1600mhz,
    but would you say keep my stable 240 fsb and boost cpu?

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    Quote Originally Posted by Levantine0507 View Post
    The ram is at 1600 mhz total value but aod reads 800mhz per channel
    in bios set up and boot screen read as 1600mhz,
    but would you say keep my stable 240 fsb and boost cpu?

    Ohhhh. You need to downclock Ram. C2 revision is native 1333MHz. The IMC gets unstable at too high of frequency. No on FSB. Use a high multi and LOW HTT till you find a good overclock. Try 20X, 19X and 18X. Take your divider up on Memowy and get it to 1333 or 1066MHz. I would start at 1066MHz because raising HTT, will raise the memory frequency too. This will keep it UNDER 1333MHz. Once you get it stabe, you can play around with memory frequencies and divider.
    Last edited by Drdeath; 23-05-2010 at 22:33.

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    In theory, higher HTT(FS should give better performance but it really doesn't with the platform. With all the multi's and dividers you can basically achieve the same performance with a high Multi on both CPU and NB because the NB has a multi too. If the NB is unstable, all you have to do is back the NB multi backwards. Same with memory, take the divider higher which will lower memory frequency and stablize.


    Lowering HTT(FS and raising Multi should get you a higher overclock and better performance. 3.8GHz should be a can of corn on air but watch temps. Keep em 55 or under on full load.


    Here is my results from the C3 revision. I cannot find screenies from my C2 revision but I hit 3.95Ghz stable with C2. I got NB to 2800MHz+ which is pretty good. As you see, I needed voltage. 1.6v to be exact and same on C2. Look at those sweet temps!

    Last edited by Drdeath; 23-05-2010 at 22:44.

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    thanks for the info imma keep playing around with it NB seems to be unstable at 2600 mhz though i ran stability test for 24hrs then the next day it booted up with hyper transport sync error and rebooted then the pc crashed during gaming.
    cpu was only at 3800mhz
    ram was 1600mhz
    NB&Hyper transport were 2600mhz

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    Quote Originally Posted by Levantine0507 View Post
    thanks for the info imma keep playing around with it NB seems to be unstable at 2600 mhz though i ran stability test for 24hrs then the next day it booted up with hyper transport sync error and rebooted then the pc crashed during gaming.
    cpu was only at 3800mhz
    ram was 1600mhz
    NB&Hyper transport were 2600mhz

    NB is fine @ 2600MHz, it is your Hypertransport that is making you unstable. Higher Hypertransport does not yield much performance gain but will add instability as mentioned. Lower your Hypert. to 2000Mhz and that should help. Put your NB at 1.3V and CPU/NB at 1.28-1.34V and you should stabilize.

    Also lower your ram to 1333MHz. Phenoms IMC is really 1333MHz but will overclock to 1600MHz+. Again, there is little performance gain @ 1600MHz over 1333MHz so when overclocking, it is better to start with lower ram frequencies. Once you find the target overclock, you can overclock ram frequency via your divider and see if it is stable. Until then, I would advise a lower memory frequency.
    Last edited by Drdeath; 31-05-2010 at 21:11.

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    Quote Originally Posted by Patrick View Post
    This is total bull**** and you know it. First of all the 965 has an unlocked multiplier and its QPI is double that of the 920. The 965 has 4.80 GT/s. Secondly I don't know how you have come by the idea that the 920 is exactly the same just because you could never afford one so you make yourself think it is just as good. The 965 has a much higher over clocking potential too. The same goes for all those other 920 n00bs who think it is the same as getting the 965. Know your facts before you say bull**** like that.

    Who is this Patrick guys and what started him on this Rant??????? I do not think he realizes we are talking about the Phenom 965..... he must think is an i7 965 or something.

    Any clues??????? I think he works for the post office or something...LOL

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    offending post deleted. don't let it bug you, he's a spam bot. he made 5 posts and we'll never see him again. they copy and paste posts from other forums and repost it with their advertising signature - it's their way of trying to look like legit posters

    http://www.google.com/#hl=en&source=...01d881a5ff002f

    that's a good search of part of his post. it's a copy/paste.

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    Red face

    Why would u want to the raise FSB or bus this high for this clock speeds?How about doing it this way?Higher CPU clocks & better stability.Also take note that NB/HT Link frequency are in line with FSB/Bus(NB/HT Link:2200 Bus:220)& keep your Ram speed below 1800Mhz to avoid BSOD
    Here are my voltage:
    CPU:1.45
    CPU/NB:1.40
    CPU/VDDA:2.49
    DRAM:1.65
    HT:1.20
    NB:1.11
    NB1.8:1.81
    SB:1.20
    Last edited by Biff73; 30-07-2010 at 17:05.
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    Quote Originally Posted by Biff73 View Post
    Why would u want to the raise FSB or bus this high for this clock speeds?How about doing it this way?Higher CPU clocks & better stability.Also take note that NB/HT Link frequency are in line with FSB/Bus(NB/HT Link:2200 Bus:220)& keep your Ram speed below 1800Mhz to avoid BSOD
    Here are my voltage:
    CPU:1.45
    CPU/NB:1.40
    CPU/VDDA:2.49
    DRAM:1.65
    HT:1.20
    NB:1.11
    NB1.8:1.81
    SB:1.20

    HT does not have to be in line with HTT. Some chips/mobos like higher multis with lower HTT and some like lower multi and higher HTT. The secret is finding the sweet spot for stability. 2000-2200 on these chips seem to be where they need to be. Anything more than 2200 may cause instability plus like mentioned, not reall any performance gain. With my Phenoms, I always looked for max HTT on mobo. I would use a very low multi and see if it would boot at 300HTT. Then I would play around with the multis and adjust the HTT for my overclock to see where stability starts. Most of my chips were 16x - 19.5x. I would keep ram around 1600MHz... Even lower. Get the nice overclock then toy with ram/multi's/dividers........
    Last edited by Drdeath; 30-07-2010 at 17:13.

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    But it does benefits my 955 & Crosshair III to have HT/NB & Bus in line,not only did it gain 1000+ higher points in 3DMark 06,it also improve temperatures & better stabilty.My 955 is @3870MHz(18x215)NB/HT Link:2150,Bus:215,Ram:1720MHz 8-8-8-24 2T.I think most AMD Mobo prefers higher mutiplier but not high bus speeds
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    Quote Originally Posted by Biff73 View Post
    But it does benefits my 955 & Crosshair III to have HT/NB & Bus in line,not only did it gain 1000+ higher points in 3DMark 06,it also improve temperatures & better stabilty.My 955 is @3870MHz(18x215)NB/HT Link:2150,Bus:215,Ram:1720MHz 8-8-8-24 2T.I think most AMD Mobo prefers higher mutiplier but not high bus speeds

    One of my boards highest overclock/performance was my Asus M4A79 Deluxe. It overclocked at 289 on the HTT and was perfect. Max HTT was like 310....... It really is dependent on the system. All 5 of my Phenoms were stable with max OC and performance at 2000-2200 on Hypertransport with different HTT's. Some under 220 and some higher. My Gigabyte GA-MA790XT board likes 218-230 on HTT. It is just a coincidence on the number with the sweet spot being 2000-2200 on Hypert.

    Your theory on this is not correct and I will say why. Higher Hypertransport yields little to no gain in performance. It will increase bandwith whereas higher NB frequencies will yield more performance. Get your NB to 2800MHz and now your talking....... If you go to high with Hypertransport, you will gain instability. There is nothing you can do after a certain point with Hypertransport to gain it back but there are a few things you can do with NB to a point....... The best performance and overclock I had was this:




    Thats 2000/2671 respectably.... Compare your CPU score with mine. This was my 965 C3 revision......

    Last edited by Drdeath; 31-07-2010 at 15:33.

  18. The following user thanks Drdeath For this above post:

    Biff73 (31-07-2010)

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    [quote=Drdeath;52375]One of my boards highest overclock/performance was my Asus M4A79 Deluxe. It overclocked at 289 on the HTT and was perfect. Max HTT was like 310....... It really is dependent on the system. All 5 of my Phenoms were stable with max OC and performance at 2000-2200 on Hypertransport with different HTT's. Some under 220 and some higher. My Gigabyte GA-MA790XT board likes 218-230 on HTT. It is just a coincidence on the number with the sweet spot being 2000-2200 on Hypert.

    Your theory on this is not correct and I will say why. Higher Hypertransport yields little to no gain in performance. It will increase bandwith whereas higher NB frequencies will yield more performance. Get your NB to 2800MHz and now your talking....... If you go to high with Hypertransport, you will gain instability. There is nothing you can do after a certain point with Hypertransport to gain it back but there are a few things you can do with NB to a point....... The best performance and overclock I had was this:




    Thats 2000/2671 respectably.... Compare your CPU score with mine. This was my 965 C3 revision......


    Thanks for your info,Impressive OC,but your Ram is at 1390MHzSo mem speeds lower than 1600MHz should allow for higher bus,yes? But my Crosshair III is currently using 1403 bios,will upgrading to latest 1702 bios improve overall OC headroom?Sorry,I know this is off topic,but wish to learn more about OC
    Last edited by Biff73; 31-07-2010 at 16:55.
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    Higher memory frequencies also do not equate in much more performance. If I would kick it up to 1600MHz+, the perf. difference is also minimal. Less than .5%. The IMC on 965s' is native 1333MHz. Going higher is a plus but leaves the instability issue there IMO. Every system is different so if you can achieve over 1600MHz it is a plus no doubt. My overclcock is stable 24/7 and is problably in the top percentages of stable overclocks even with my cooling on the 965. I toiled endless nights to achieve this. Not only was it a great overclock it was top notch for performance on the chip.

    Yes but no on the allowance for higher HTT......Lower memory speeds do not allow for higher HTT because you also have a multiplier. You can adjust the multi accordingly. Id does give you more headroom on HTT to yes, go higher but remember the sweet spot I descibed. My sweet spot on gigabyte board was 210-230. If I went over 230, I had a rough time finding stability so I adjusted the multi to keep me in my comfort range....... To an extent, it is trial and error.....

    Bios updates do not always give better overclocking. I updated a bios once and got less of an overclock. Read what the bios update if for. In your case, it could be for the x 6 Phenoms rendering the update not necessary.
    Last edited by Drdeath; 31-07-2010 at 17:27.

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    Quote Originally Posted by Drdeath View Post
    Higher memory frequencies also do not equate in much more performance. If I would kick it up to 1600MHz+, the perf. difference is also minimal. Less than .5%. The IMC on 965s' is native 1333MHz. Going higher is a plus but leaves the instability issue there IMO. Every system is different so if you can achieve over 1600MHz it is a plus no doubt. My overclcock is stable 24/7 and is problably in the top percentages of stable overclocks even with my cooling on the 965. I toiled endless nights to achieve this. Not only was it a great overclock it was top notch for performance on the chip.

    Yes but no on the allowance for higher HTT......Lower memory speeds do not allow for higher HTT because you also have a multiplier. You can adjust the multi accordingly. Id does give you more headroom on HTT to yes, go higher but remember the sweet spot I descibed. My sweet spot on gigabyte board was 210-230. If I went over 230, I had a rough time finding stability so I adjusted the multi to keep me in my comfort range....... To an extent, it is trial and error.....

    Bios updates do not always give better overclocking. I updated a bios once and got less of an overclock. Read what the bios update if for. In your case, it could be for the x 6 Phenoms rendering the update not necessary.
    Thanks,I will try lowering ram speed & try shooting for higher bus & CPU speedsI will post it up when doneHere is what I hit after lowering ram speed to 1600MHz@8-8-8-24,bus is 200 & 2000MHz for HT Link/NBhttp://valid.canardpc.com/show_oc.php?id=1301839 Hmm,200 bus speed seems to work great on my pc temps or performance wise though
    Last edited by Biff73; 02-08-2010 at 03:11.
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