Utterly boring overclocking experience (AMD)

[ctk1981]

The lower the better. Say you can run at 1.4v @ 4ghz, I'd take that over 4.2 at 1.5v. Aim for the sweet spot. I degraded an x4 @ 1.475v in just under two years.

I see what you're saying. I went ahead and tried. First off, Im not sure what measurement I should believe. The bios gets set at one thing, AOD reports another, and OCCT/CPUZ report yet another measurement. At any rate, 1.41 under load seems about the best I can do at 4Ghz. If I try 1.375 bios, AOD reports 1.4, OCCT reports 1.38 but under load it works its way back up to 1.41V. So I guess I'm stuck at 1.4V for the 4Ghz OC.

Why 4Ghz....why not? I cant see how a little 200mhz OC somehow yields better results than a 600mhz OC. Is it an earth shattering difference, I dont know haven't ran any tests to see, but I doubt it. Its more of a "Because I can" situation.

I am wanting to fiddle with the CPU-NB a little as that does provide an increase in mem/bandwidth according to aida64. I did find that I could tick the 1T command rate on my memory and it works, yielding a very similar increase in performance.

 

[ErickMaga]

Well, I didnt touch any voltages....managed to squeeze 4.2Ghz, 2400 HT, left the bus at 200mhz, ram set to 1600mhz like it should. Wow....boring. I'm going to prime test it overnight but its already 4 hours into it with no problems. OCCT reports temps around 55-58c loaded, vCore is bouncing around 1.477-1.5V. 4.4Ghz results in an almost immediate blue screen,

Want fun? i got a 955BE here thats a lot of fun, you get many BSODs, even when you think you are stable.

Try and raise to 4.2ghz with no voltages to see what you get...

Wanna trade CPU's?

I bet you gonna have a good time here with this CPU to get to 4ghz paartially stable(c3 revision).

And i can get 4.2ghz with no swet.

So wanna trade? that booring cpu?

I really dont get some people. Complaining about easy high clocks? WTF?

 

[BD231]

I see what you're saying. I went ahead and tried. First off, Im not sure what measurement I should believe. The bios gets set at one thing, AOD reports another, and OCCT/CPUZ report yet another measurement. At any rate, 1.41 under load seems about the best I can do at 4Ghz. If I try 1.375 bios, AOD reports 1.4, OCCT reports 1.38 but under load it works its way back up to 1.41V. So I guess I'm stuck at 1.4V for the 4Ghz OC.

Why 4Ghz....why not? I cant see how a little 200mhz OC somehow yields better results than a 600mhz OC. Is it an earth shattering difference, I dont know haven't ran any tests to see, but I doubt it. Its more of a "Because I can" situation.

I am wanting to fiddle with the CPU-NB a little as that does provide an increase in mem/bandwidth according to aida64. I did find that I could tick the 1T command rate on my memory and it works, yielding a very similar increase in performance.

Great OC at 4ghz/1.4v, who wants to kill a chip for a measilly 200mhz ya know?

No matter what CPU you're overclocking you're going to reach a clock limitation, and the closer you get to it the less efficient the transistors become with power leakage and all kinds of other negative crap I don't care to remember. It's just not a good place to leave your chip. Definitely OC the Memory controller, that will give you a nice boost gaming and it'll increase your enconding/transcoding speeds nicely.

 

[ctk1981]

Want fun? i got a 955BE here thats a lot of fun, you get many BSODs, even when you think you are stable.

Try and raise to 4.2ghz with no voltages to see what you get...

Wanna trade CPU's?

I bet you gonna have a good time here with this CPU to get to 4ghz paartially stable(c3 revision).

And i can get 4.2ghz with no swet.

So wanna trade? that booring cpu?

I really dont get some people. Complaining about easy high clocks? WTF?

Sounds like you're just jealous.

I guess some people never really caught on to the fact that the title just may have been a joke and not a complaint.

@BD231 - Yeah I finally figured out which voltage I needed to bump for the CPU-NB to function at 2600mhz. Going to try for 2800 after I verify for a couple hours that this setting is stable now. If I can make it to 2800 and hold the 1T command rate I'll post up the aida64 benchmarks as I've progressed along. Quite an improvement in bandwidth and latency.

Edit: Rather keep bumping this for just trivial information Im going to post, figured I'd edit my last post. I couldnt get the CPU-NB to hold at 2800 with an extra shot of .1V to the CPU-NB, I don't really want to push it too far so I just went ahead and backed down to +.750 and kept it at 2600. Oddly enough, AOD kept reporting the CPU-NB set at 1.1V the entire time, regardless of what I increased it. Frustrating to know whats really going on for sure. 4.5 Hours of OCCT large alongside MSI Kombustor running with OC'd settings on the geforce 570 HD. Not one BSOD. I'd say its pretty stable.

Edit x2: Well, just when you think your OC is stable, 3dmark11 proves you wrong. Wow. Had to back down to 3.9Ghz, 2600mhz CPU-NB and 1T command rate still in place. Couldn't believe that after running prime for hours on end alongside furmark/OC Scanner and not one single failure...3dmark11 brought it down to its knees. I may very well test a lower core voltage now also.

AIDA Results

CPU-NB at 2400

CPU-NB at 2400 Command rate 1 on the memory

CPU-NB at 2600 Command rate 1 on the memory