[Solved] Mix 2 different RAM (but works - sometimes BSOD) is okay?

Again, do you overclock your cpu? May be oc cause bsod due to unstable setting. Dram frequency is 357mhz in cpuz. Reset your bios setting to default.

Getting BSOD after set it to 800.

Windows won't start after I set it to 800, get BSOD just after the loading screen.
Is it showing 357mhz because I'm turning on SpeedStep?

It's random. But I think it's happen if I turn on my computer longer than 10 hours (is that bad? D: )
And the CPU freq. is 266 by default.

Uh, no first of all, you are trying to set 800mhz ram to 1600mhz which it wont allow, so since its double pumped you need to set it to 400 in the bios (400x2=)

Also make sure your timings are fine.

if that still gives you BSODs then try loosening up the timings (higher is looser) make sure they are all the same timing

I'm fairly certain speedstep only messes with your cpu frequency, if you can edit the Dram Freq to 400, do so, if not don't worry about it, what are your timings set at and have you run Windows Memory Diagnostic

Well I oc my cpu to 320Mhz. The DRAM freq. changed to 400.4Mhz. But my cpu temp. is like 100-102c while running PES 2012. Is that okay?

I've just test it with default freq. (266Mhz) and it's still at 99-102c.
Will it blow up or something?

I just change the FSB from 266 to 320.
CPU voltage at around 1.200v in cpu-z.
I did change it to default, but it's still at around 100c. I never knew this before I get core temp.
Is it the motherboard or the HS problem?
I'm using local (ugly) motherboard.

Okay HS problem solved (It turn to a bit black O.o). Now I'm getting around 80c-90c at full load. Is that okay?
About the timing, should I do manually or keep auto?

No, your temp is very high. It should be under 60c without oc. Buy a new HS.

Auto timing works for most of time. Check each memory individually with memtest. Different size memory shouldnt be a problem.

Set it down to 266Mhz, since the as the FSB rises it also increases the rate the ram needs to be run at, causing instability, and since you cant underclock the ram overclocking the fsb should not be done.

I don't really know how to explain this one... uhmmm, but basically as you raise the fsb the ram must run at a higher speed, now normally this is done you HAVE to underclock the ram so as to not allow the ram to run higher then what its rated for

basically its what your ram is set and plus whatever your FSB is set at is the true speed your ram is trying to run (guys im kinda limited in my knowledge at fsb/ram ratios so if anyone has the formula please tell me )

Actually this problem solved already (Thanks to you guys), but come up another problem
http://www.tomshardware.com/forum/335848-31-beep-video

This topic has been closed by Nikorr