CPU & RAM burn-in guide

[MrSeanKon]

Thanks Ref well thread's title may mess someone but this is the name of this process.
Skinny13 my RAM is Kingston HyperX PC4300 (please read carefully my first post --> system specifications)..
This means it's DDR 533 not DDR 333.

Well I don't think more to burn my RAM cos it is old now.
Xm...
In addition a good for RAM burn in is MSDOS MemTest (OK it tests your RAM also)...

Note 310 MHz FSB 3-4-4-8/2T Vdimm=2.82 was using Gigabyte K8NS Pro 754 socket (I sold my 754 system yesterday and I have 939 now)...

[CD 1986]

Nice tool! I just had a go with it and it seems very accurate. I know my AMD 3200+ Venice doesn't respond well with more than 1.50v (at over 2700mhz) and using your method got me spot on results.

[MrSeanKon]

CD 1986 I saw that you have the same mainboard!
Wow!
Well do you use multimeter to measure voltages?
If no then MSI's monitor Vcore is -0.02 up to -0.03 Volts lower than actual.
Vdimms are OK Vdimm in BIOS is -0.01 lower than actual.
Well Vcore BIOS settings gives different values than excepted but MSI's monitor is enough accurate.
Well I saw your n is almost 0.5 (2540 --> 2770 MHz) so don't increase more your voltage at this moment.
Please be away to run CPU Stretcher near to unstable FSBs cos it is too dangerous (hard disk data corruptions).
Wow??????
You have stock heatsink and you achieve this speeds??
Wow you have a very good processor!
In addition keep in mind CPU Stretcher must run with a qualified PSU I don't suggest this evil program for medium quality PSUs...

[Ref]

Thanks Ref well thread's title may mess someone but this is the name of this process.

not that it matters but the name of the process is "burn-in"
"burn your CPU" means you put it in a fire or something
correct me if i am wrong ?

[davidw8818]

very nice guide, let me try to burn it this way, ill post bak with some results later

[MrSeanKon]

I changed thread's title as you can see.
Thanks for your suggestion (English is not my first language).

davidw8818 we are waiting your results.


Let's summarize my current CPU status:
Before burn in CPU passed 8M SuperPi at 2310 MHz, Vcore=1.361 and failed at 2320 MHz.
As you can see above I increase FSB (233 MHz) and I ran CPU Stretcher 4-6 hours each time.
I increase more FSB and I ran my system for 8.5 hours.
I went for ZZZ cos I was too tired but ZZZ=0 for my CPU and no rest!
See this photo:



Today I tried 2340 MHz 8M SuperPi and CPU passed!
Wow!



I tried 2350 MHz 8M but failed...
Note that CPUz shows variable Vcore --> multimeter is a must have tool.
Thus total gain after burn in (using Vcore=1.361) is 2340 - 2310 = 30 MHz.
I don't have enough time and patience thus I decided to stop burn in process using Vcore=1.361.
So I increased Vcore to 1.413 Volts.
My table (that's why it is very important to save data/notes) shows that MSF2=2400 MHz, Vcore2=1.413V.
Of course it is not smart to run again 8M there.
I ran 8M at 2410 MHz to see if I gain something.
Yes fellas it passed!



Therefore using Vcore=1.413 Volts current gain is 10 MHz.
I will continue the same process.
I will run my CPU at 2430 MHz for 8 hours (or more), ZZZ=0.
Next day ZZZ=0 at 2440 MHz and so on (until crash).


My recommendations
1) Don't burn too much your CPU!
Let adequate time for rest!
2) At least you must burn your CPU (each Vcore) for 24 hours.
You can split burn time (3 times 8 hours each burn or 4*6).
3) If you are patient burn it more hours e.g. 36 or 48 but I don't suggest you more (OK if you have enough free time burn it for days each step).


F.A.Q.
Q. Your CPU passed 8M at a MHz using b Vcore. This means that is rock stable.
A. Of course no!
See O/c Bible's thread for Mapping method.
To be more specific:
MSF=2340 MHz using Vcore=1.361 as you saw above.
If I decide to use this Vcore for permanent usage then I will reduce CPU speed at 2320 MHz or 2310 MHz and all are OK.
Q. What Vcore should I use?
A. Visit PcPer forums and OCAU (look my signs/threads there).
I opened two AMD Vcore polls and read posts etc...
Q. I have Intel CPU. What should I do?
A. The same process.
Keep in mind that Intel processors gain more MHz after burn in (in general).
See our chat at XtremeSystems for Intels (link is above).
But Intel processors are more sensitive than AMDs --> don't increase too much Intel Vcore...
Q. Why should I burn my CPU? What are advantages?
A. OK 30 or 50 MHz gain means nothing after burn in.
The most important is permanent Vcore.
If your CPU is stable after burn in at same MHz using -2% or more Vcore this is the difference.
CPU wattage follows the square formula --> Increasing Vcore +2% wattage becomes +4% higher, increasing Vcore +3% wattage becomes +9% (3% * 3%) and so on...
Q. Thanks Sir for this program I have achieved my target/goal. Should I use it more?
A. Yes!
Consider a bodybuilder!
Assume that your CPU is Prime95 (24 hours stable) or S&M long FPU test anyway your favourite stability program at a MHz.
Once day per week I suggest you exercise for (6-8 hours when you ZZZ or away from home) 2 - 4 MHz FSB higher (ZZZ=0-50, lowest priority-normal).
Just for keeping your gains (like bodybuilder or a 100m runner).