help with new build please

[Christoph]

that CPU must be an C3

a lot of people have it overclocked over 4 Ghz with ram even at 1800 MHz for almost 2 years now

now we know and they know that is not recommended to have the ram at more than 1333 MHz, but is the whole point of overclocking "risk"


and for this "risk" a lot of people had their cpu dead...


and now we have see that an 10xxT cpu can keep the ram at 1600 MHz more easily as it has an improved IMC but this is another chapter 

[Niffler]

Ah!!! but there is risk and calculated risk. I have just replaced an Intel E6600 o/ced to 3.4G. That cpu has run at that speed for best part of 4 years with no problem at all. However there was no risk. as such,  associated with that cpu and it was generally agreed that C2D's were excellent for o/c'ing. However I am on a fixed budget, like a lot of people, and need to make my cpu last. There is/has been a lot of replaced AMD cpus because of the IMC restrictions. I suppose it's like a lot of things in o/c'ing, if you get the right chip you can, if not you can't. Very similar to core unlocking.

[Dark Mantis]

I would have to agree with Niffler regarding the calculated risks involved with running anything at an over the specified rate. There are risks and then there are over the top risks. In my book if you are told that something is likely to fry your CPU then it is not making any sense to do it. Thaking a calculated risk as all overclockers do is different and he has already suggested by tightening the memory timings with a good specced RAM you can probably get a better speed out of it anyway.

There is/has been a lot of replaced AMD cpus because of the IMC restrictions

I think that there has been far more than most people realise if the truth be told.

[babdi]

Arguments accepted. However one thing puzzles me. Why does Gigabyte say "1066/1333 and 1600 OC" in their specifications ?. Are they NOT aware
of MC restrictions of AMD ?

In fact I would never bought a 1600 had they not mentioned 1600 OC.
Therefore there must "something" that AMD must be holding back

Anyway here is latest bench mark,this time at 1333 Mhz RAM , CPU bumped to 1.472 V
http://valid.canardpc.com/show_oc.php?id=1543484

[Christoph]

the first rule or tip to follow of the overclocker is that if you overclock you could burn the cpu or whatever you're overclocking, not to mention about product warranty


and actually like for my MOBO that says 1866+ O.C. or those 2000+ of the ver. 2.1; you can't use or overclock to that speed cuz the AMD CPU, and this is the first impression you get when you buy the MOBO and you say "oh I'm gonna get a 2000 MHz RAM kit", so sometime about this just doesn't fit quite well


and to mention about this, that myself got a dead 1055T AMD cpu, which I dare entirely to claim guarantee cuz I knew I was not overclocking at all, actually it was my first week testing the system to see how it goes which for my surprise it was gone already

and I have to mention that after just 2 days that AMD keep my dead CPU, I got a shipped new one, so  in anyway or the other this says a lot about AMD

[absic]

When it comes to running RAM at over 1333MHz and the advertised O/C figures what you need to remember that this is for no more than 2 sticks of RAM, 1 per memory controller. When you try to fill all  of the RAM Slots on the motherboard, that is when you start facing uncertainty to how any particular CPU will respond.

Babdi has decided to go for 1600MHz and has managed this OK but others have had their CPU's fail at these settings. AMD know there is a problem and they say not to run above 1333MHz because they can not guarantee system stability above this speed.

I have to say that Niffler's advice of bringing the RAM speed down to 1333MHz and tightening the timings is something I have been trying to get across whenever I am asked this question. In real world terms you will actually see little to no difference in speeds by down-clocking your RAM and in some cases you can actually see an improvement. It also has the added of advantage of then being within the specified parameters of the CPU memory controllers.

[Christoph]

like absic said

that is the always recommended thing to do, always

it is ALWAYS recommended to get to know what your cpu is capable to do, you're not in any situation gonna buy a cpu and bring it up to 4.0 GHz just because other people have done it

[babdi]

I believe C3 stepping has addressed this problem.