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Is it safe raising Sandy's BCLK over 100 MHz?

post #1 of 6
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Coming from C2D's, Clarkdale and Nehalem, i'm trying to squeeze every last MHz off my 2600k to get it 24/7 stable for BOINC/Folding. I'm using an Asrock P67 mobo, 16 GB of Samsung WonderRAM, and a GTX 470+GTS 450. It is also under water with a custom water loop.

IMHO, it is too boring to just raise the multi+voltages, so i planned to raise the bclk to 102-103 MHz to get a bit more off it, but some guides are warning it may be dangerous. I've also noticed most OC's don't tend to touch it.

So i'm wondering if it is true that it shouldn't be touched at all, or if the extra tinkering is worth it.
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post #2 of 6
Yea it's fine to do. Keep in mind it also raises your PCI-E frequency when you increase BCLK, so I would keep it around 103 conservatively, or 105 max for 24/7.
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post #3 of 6
Thread Starter 
Quote:
Originally Posted by Dopamin3 View Post

Yea it's fine to do. Keep in mind it also raises your PCI-E frequency when you increase BCLK, so I would keep it around 103 conservatively, or 105 max for 24/7.

Yeah, i've never had issues with 103 MHz PCI-E speed on my old i3 rig, which i had for 2 years.

For now can't go over 103.4 MHz on this setup, since it won't POST, but haven't tried raising VTT voltage yet, and i doubt i'll ever will.
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post #4 of 6
what about with ivy bridge? I think sin0822 says it causes like your ssd and usb and whatever to degrade and there's no reason to do it, but some guy around here said he got to 5ghz that way when doing it through the multi was much harder to do.

i mean a few people reported overclocking via fsb on phenom got them higher/more stable than the same oc on multi alone.
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post #5 of 6
The warnings regarding BCLK overclocking on Sandy Bridge apply to Ivy Bridge as well since they're the same basic micro-architecture. It's just not worth it, because even O/Cing the BCLK to 102 equals less that one multiplier's worth of MHz.
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post #6 of 6
I don't know why it would be considered dangerous. If you go too high you just get PLL's that won't lock.
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