Using a strap when overclocking

uksoldierboy

uksoldierboy

uksoldierboy

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Hi all,
quick question if i may, first though this is my current overclock:

4770K @4.6 via multi (46) cache ratio (45) vcore @1.3v adaptive.
Corsair vengeance pro series 1866 @2133 9-10-10-31 1T

As you can see i've overclocked my system using the multiplier, but recently read a few topics that talk of using a strap to overclock too.

I've had a google for info and tbh it's a little confusing so was wondering if you guys could help explain the Pro and Cons of using a strap when overclocking.

Most i've been able to get out of my cpu is 4.8 @1.4 but temps using my H100 started going south of 75c so decided on 4.6 as my 24/7 overclocked.

I did read that a strap can help get the same overclock but will less volts, and as i'm still saving for a waterloop, i thought i'd ask to see if this is the case.

Cheers for any advice or info.

David.
 
Was wondering why you'd see any benefit wearing a strap-on when over clocking, then reread the title.
 
1.4 is a lot for Haswell. Would tone it down a few notches if i were you.

TBH i think overclocking on BCLK/strap is hit n miss when it comes to Haswell, depending on your own chip. My chip did not like anything but 100 on BCLK.
 
Cheers avenged, I could probably get it much lower than 1.4 @4.8 in truth, was just quickly testing it, it was happy on bf4 @4.7 1.320v.

I'm more than happy with its performance and temps at 4.6 1.3v, was just curious about it as I plan on getting a nice waterloop when funds allow.
 
1.4v for 4.8 is deffo too high - if you can get 4.7 with 1.3 - that is the best you are likely to get. These chips should ideally not be run above 1.35v. In any case there are diminishing returns from 4.6-5.0ghZ on temps, volts, unless you want to destroy it quickly for the sake of 100 extra.

Just my humble opinion.

Mark
 
I would never touch BCLK always leave it at 100, most I would take it to is 105. above that and it could very easily be bye bye cpu or other bits.
But it's not worth the risk.
Found from another thread somewhere
" generally you don't want to overclock the BCLK because it overclocks everything (RAM/SATA ports/PCI, PCI-E) and most of that doesn't like a change in speed, frankly the SATA port overclock alone can break your hard drive.

That said you might be able to safely overclock the BCLK +4 - you might be able to get to +6... though somewhere around +6 stuff starts to break... so i'd only go that far if you don't mind breaking stuff.

you'll notice i'm saying MIGHT. there is so many parts with so many different tolerances there is no way to tell at which point things will break. Generally speaking +4 should be safe~ish... but i'm sure people have broke stuff at +4 too... you don't know till you've tried i guess. it's like a game of roulette. Which brings me back to my first comment. "generally you don't want to overclock the BCLK" the return is not enough to justify the risk.
"
 
Cheers guys for the info and advice.

Had a little play around today trying to get the vcore as low as possible for 4.6,
Started at 1.3v and it's now happy and stable @1.25.

Only tested a few cpu heavy games like Bf4/Arma 3 and some handbrake, all fine so i think i'll leave it at 4.6.
 
Cheers Avenged,
In regards to the 290X, max i've been able to run (benchmark depending) is 1250/1625.
Not bad for a reference card on stock cooling, next is to get the lot under water and really push.
 
Very nice. Only got round to maxing my 290x clocks today. Have benched on 1300/1625 on some fairly heavy voltage (+239mv). If i can figure out a way to pass 1300 on MSI AB i would try benching at +300mv and maybe +350mv. Card is reference with elpida memory but cooler was put away within hours of delivery and replaced by a slab of EK. At +239mv in benchmarks it is hitting 50 degrees, so have a bit of room if core allows for it. I doubt ill see memory go any higher.
 
Very nice clocks indeed avenged! I to have elpida memory so think I'm stuck at 1625 too.
But I'm hoping the core has plenty more to give.

What's your vrm temps like with the block fitted?
 
Guy's, the OP talking about using the strap to overclock, not the BLK, 2 different things, To be honest, ive overclocked using the strap and it makes no difference in performance benchmarks, much easier to just the multiplier.

However, if for instance your CPU will only do 4.4ghz, and you set the strap to 125, you just have to set your multipliers to x35 to get your 4.4ghz rather than x44, that also includes your turbo multipliers, you need to also adjust your memory multiplier and uncore one too, to compensate.
 
Straps are good for ringing the most out of memory, its just a shame z87 is far more picky with strap and base clock aadjustments then x79
 
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