CPU front Bus issues?

[Akolyte]

This happened about a month back, but you guys are so good at helping me, so I decided to ask this, since it seems not everything my local pc shop claims is correct.  In fact very much the opposite.  So someone at my local pc shop claims to have equipped me with 1600mhz memory, however I'm getting kind of suspicious.  Because I would always get blue screens.  So he told me to set it back to 1333mhz, yet he said it was 1600mhz at stock...  I'm using an i7 3820 and a p9x79le mobo, which both claim to handle 1600mhz memory.  So i'm very suspicious.  Here is his reply to my issue:that

> message is because pushing the RAM up 1600 forces the front side bus up on
> the CPU thus overclocking (obviously can't take it) taking this into
> consideration we should leave the RAM at the modest 1333 MHz.

 

Yet this struck me because he said the RAM came at 1600mhz, I dont know what a front bus is sorry, but I do know that this is fishy to me What do you think?

[lufihengr]

Usually ram is set at 1333 by default, before you set it to stock speed/ set the X.M.P profile on.

But if you get BSOD's on 1600 that is a bit worrying.

[KJaboski]

I had smiler problem with my z87 board, the problem was similar that I was getting crashes and bsod while my ram was set at xmp profile of 1600mhz, solution was quite simple: mobo bios update, that might work for you is well

[Akolyte]

I had smiler problem with my z87 board, the problem was similar that I was getting crashes and bsod while my ram was set at xmp profile of 1600mhz, solution was quite simple: mobo bios update, that might work for you is well

Yeah, I recently did a BIOS update, I'm too scared to try though x_x. 

[SkilledRebuilds]

Back in the day before XMP set profiles. (Some motherboards do not lock the frequency and XMP sometimes does this too)

You had to manually set them to 1333/1600/1866/2133 and so on..

But.. when overclocking the FSB, the Memory speeds would rise with it.

 

Setting Stock 1600, and overclocking the CPU via FSB, the ram would rise ABOVE its Rated 1600mhz Speed,

once pushed too far with no extra voltage (likely with overclocking FSB) they will cause BSOD/General Instability when Under load in an Overclocked System.

 

1600mhz ram would be taken to unstable levels, hence you get told to run @ 1333mhz, and with your overclock, it would be pushed faster accordingly and be stable sitting under its rated speed, yet faster than 1333mhz.

[Akolyte]

Back in the day before XMP set profiles. (Some motherboards do not lock the frequency and XMP sometimes does this too)

You had to manually set them to 1333/1600/1866/2133 and so on..

But.. when overclocking the FSB, the Memory speeds would rise with it.

 

Setting Stock 1600, and overclocking the CPU via FSB, the ram would rise ABOVE its Rated 1600mhz Speed,

once pushed too far with no extra voltage (likely with overclocking FSB) they will cause BSOD/General Instability when Under load in an Overclocked System.

 

1600mhz ram would be taken to unstable levels, hence you get told to run @ 1333mhz, and with your overclock, it would be pushed faster accordingly and be stable sitting under its rated speed, yet faster than 1333mhz.

I dont have an overclock, the cpu is at pure defaults.  Which strikes me because both motherboard and cpu say that they can run memory at 1600mhz without issus.