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Athlon II X4 620 Overclock memory questions

post #1 of 9
Thread Starter 
Ok, so during newegg's black friday sale I picked up some new ram and a cpu cooler. After installing the cooler, I decided to see how far I could OC my Athlon x4 620 (with 3.5 being my goal).

Anyways, I managed to reach 3.5 stable, but I'm stuck on trying to figure out how to get my ram above 1080mhz. I have to have the ram multiplier at the lowest value in bios (4) in order for it to even post. If I increase it to 5.33, it won't even start and reverts to stock settings. I tried manually editing the timings to stock (9-9-9-24) and even tried to loosen them up, but nothing seemed to really make a difference. I also tried boosting ram voltage by .025 to see if it made a difference, which it didn't.

Here is the link for the ram:

http://www.newegg.com/Product/Product.aspx?Item=N82E16820231314

And in case it's needed, here's the motherboard I'm running

http://www.newegg.com/Product/Product.aspx?Item=N82E16813128398

So, I'm not sure what to do here. I've done some reading that may indicate that I need to boost the voltage to the NB or HT, but neither of those are really being pushed at all. Here are cpu-z screenshots:

190


I'm confused by the two different listings of timings for the memory... the memory page says 6-6-6-15, while the spd page says 9-9-9-25. As of those screenshots, the memory settings are set to auto... other than the memory multiplier. Either way, I'm just trying to see how to get my memory up to 1600mhz... if that even matters at all. If there's not really a performance loss from where it's at to where it should be, then I won't even bother, but I'm not expert on these sort of things, so I thought I'd hit up the forum to see what people say (I recognize there's a million threads on oc'ing this/similar cpu(s), but nothing that really addressed what I'm trying to figure out, not to mention that each instance is different).

Just to put it out there, heat isn't an issue, it tops out at 45c under load for extended periods of time.


Thanks in advance,

Edit: I also just realized my ram isn't running in dual channel mode... even though it's in the proper slot configuration (i.e. slot 1/3)... any thoughts?
Edited by iGman - 12/5/11 at 10:45pm
post #2 of 9
Spd is the factory settings.Yours is auto setting to CL 6-6-6-15 at 1080MHz. Increase the CPU/NB voltage to get to 1600MHz,somewhere around 1.35v. It may boot on auto with the extra voltage,or you might have to set manually.Start with the stock rated timings of 9-9-9-24-33.Once you get that then you can overvolt the RAM and hopefully lower the timings.
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post #3 of 9
Thread Starter 
Ok, good to know what SPD is referring to. How much would you recommend increasing the cpu and NB voltage? I tried boosting the NB by .1 (the max it offers is + .2), the cpu by .25, and manually set the ram timings to stock, but every time I do that, the computer won't even post... it just beeps three times and resets. It could be that I just need to add more voltage, but I don't wanna just start throwing voltage at things, unless that's what actually needs to happen.
post #4 of 9
read this guide, it addresses alot of your questions and will give you a good guide to go by on overclocking that chip smile.gif
http://www.overclock.net/t/777378/official-gappos-little-deneb-thuban-overclocking-guide-with-too-many-smileys
also it appears that MB wants the ram in slot 1/2 or 3/4 for dual channel...it may recommend one set as better than the other for max performance wink.gif
Edited by mrinnocent - 12/6/11 at 12:37am
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post #5 of 9
I had the ddr2 version of that board with an x4 630 and easily hit 3.8ghz with it. It's a real over acheiver! was the 785 chipset i think anyhow..point is, you should get some good numbers from it....you'll want to get your cpu/nb freq up to allow the ram to "breath" also...somewhere in the 2400 to 2600 area should be realistic for 24/7, as Redwoodz recommended somewhere in the 1.35v area for cpu'nb should work
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post #6 of 9
Thread Starter 
Ok, regarding setting the cpu/NB, there are two NB settings in the bios; there's the northbridge voltage, and the NB VID voltage. From what I've read, the NB VID is the cpu's NB. However, I'm a bit unsure of how to know if I'm giving it 1.35v. The gigabyte bios only gives the option of how much you want to increment it, not the actual voltage where it's at. When I open AMD overdrive, it says the nb vid is 1.175v... which would require a substantial voltage increase to get it to 1.35 (similarly, the northbridge voltage is listed at 1.2v). As for the nb frequency, I went and did as you suggested and upped that to ~2400, but that makes no difference for the time being, at least till voltages are upped.

Anyways, thanks for the replies and I look forward to figuring this out;
post #7 of 9
535
CPU NB VID is the CPU/NB voltage(or IMC,internal memory controller)-set to 1.35v. It should show the total voltage after you make a change.
NB voltage is for the NorthBridge.You may also need to increase this to 1.2-1.3v to overclock your memory. 1600MHz is an overclocked memory setting for all AMD K10 processors,except for maybe Thubans.
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post #8 of 9
Quote:
Originally Posted by iGman View Post

Ok, regarding setting the cpu/NB, there are two NB settings in the bios; there's the northbridge voltage, and the NB VID voltage. From what I've read, the NB VID is the cpu's NB. However, I'm a bit unsure of how to know if I'm giving it 1.35v. The gigabyte bios only gives the option of how much you want to increment it, not the actual voltage where it's at. When I open AMD overdrive, it says the nb vid is 1.175v... which would require a substantial voltage increase to get it to 1.35 (similarly, the northbridge voltage is listed at 1.2v). As for the nb frequency, I went and did as you suggested and upped that to ~2400, but that makes no difference for the time being, at least till voltages are upped.
Anyways, thanks for the replies and I look forward to figuring this out;

did you move your ram to slots 1/2 or 3/4 to get dual channel?.....once you have both your nb's voltage set you should be able to start overclocking the ram, 1600 will be about all you'll get out of that chip...I see you got your cpu/nb to 2400 ....if you got that without a voltage increase then 2600 should be realistic......also read in mb manual to see if they recommend 1/2 or 3/4 for best ram performance.....every little bit helps. set ram to next available multi and see if it'll boot.....I'm guessing you'll be in the 1300 range if it boots go for the next multi.....theres going to be a choice between tight timings and lower freq or loose timings at higher freq...your better of with lower freq at tighter timings with K10....check temps you will now be running hotter with the cpu/nb voltage and freq increase...have fun and good luck smile.gif
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post #9 of 9
Thread Starter 
I haven't played around with ram slots yet, may get around to that tomorrow. I figured out that the voltages weren't showing because of the old bios version I was running. I updated it today and set the nb to 1.35, but that still didn't make it boot. I'm fairly convinced it has to do with the timings... every time I edit the timings, even if it's just copying the exact same settings that it was running on auto, it trips out on me. If I set it to the lowest multiplier, it automatically runs up some low timings (see: cpuz screen above), but at 1000ish. If I up the multiplier to 5.33 (~1400 - I would be perfectly happy with getting 1400 at this point), it decides the timings should be around 7-7-7-??. If I try put the timings that should be there... the 9-9-9-24, it just beeps and won't post... even though it's a looser timing. It makes no sense to me. I even copied the auto settings from bone stock settings (which it decides is 11-11-11-28) and it still won't take it. I've copied the exact same thing auto says, and it still freaks out (that is, not post).

Anyways, I've tried all this shenanigans with varying NB voltage (up to and a little above 1.35) and didn't get it anywhere (I even tried putting the NB at over 2600 with the voltage, but the ram wanted nothing to do with it... again, at the higher multiplier, the auto setting was for a lower latency than what the ram was able to do at that speed [and if I even touch anything in the DRAM config, it trips balls].... I don't think it all really has to do with the NB at this point, but it could... I don't really know). So, for now it sits at the low timings and low frequency - and given what said about being better off with tighter timing and lower speed... I'm curious if sitting at the equivalent of 1066 with CAS6 is a worthwhile tradeoff for the overclock? I'm kind of tired of fighting with it - given that it won't let me change any timings or seem to respond to anything other than what it decides should be set on auto.

Anyways, I'm curious to see what suggestions you guys might have.

Thanks for your feedback so far, and I appreciate your help;


Update: put the ram into the appropriate 1/2 for dual channel. I have no idea why I had it the other way... Anyways, tested all the aforementioned tweaks with dual channel... but it makes no difference to the oc.
Edited by iGman - 12/7/11 at 3:14pm
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