Quote:
Originally Posted by mapesdhs 
Sweet!! 8)
I'm curious, did you oc your 875K? If so, how? By that I don't mean the general procedure (I already have an 870 running at 4270);
instead, I mean did you use a fixed clock with Turbo, etc. all off, or take advantage of the totally customisable Turbo levels to create
an oc that exploits the higher thermal liimits available when only 1 or 2 cores are running?
I know my 870 can run at 4444 with HT off, so if only 2 cores are active (with HT on) then using Turbo sounds like a good idea with
the 875K, though one must of course be careful. Likewise, how might it go with just one core active? Hard to say, but should be
interesting to find out (I bagged an 875K for 102 UKP a while ago, plus an EVGA P55 FTW board for 71, but I've not done anything
with them yet). Review articles for the 875K didn't really mention the customisable Turbo levels much at all. So I figure perhaps, a base
clock of 4200 or 4300, with Turbos set to allow for 4400 to 4500 with 2 cores active, maybe 4600 with 1 core active? This is easy
with Clarkdale (my i3 550 is running at 4.7 atm, but I think it could handle 5+ on a better mbd) but Lynnfield is a different beast. Either
way, I welcome your input if this is something you experimented with. I'll be using a lapped TRUE RevC (or maybe a TRUE black).
Ian.
Sweet!! 8)
I'm curious, did you oc your 875K? If so, how? By that I don't mean the general procedure (I already have an 870 running at 4270);
instead, I mean did you use a fixed clock with Turbo, etc. all off, or take advantage of the totally customisable Turbo levels to create
an oc that exploits the higher thermal liimits available when only 1 or 2 cores are running?
I know my 870 can run at 4444 with HT off, so if only 2 cores are active (with HT on) then using Turbo sounds like a good idea with
the 875K, though one must of course be careful. Likewise, how might it go with just one core active? Hard to say, but should be
interesting to find out (I bagged an 875K for 102 UKP a while ago, plus an EVGA P55 FTW board for 71, but I've not done anything
with them yet). Review articles for the 875K didn't really mention the customisable Turbo levels much at all. So I figure perhaps, a base
clock of 4200 or 4300, with Turbos set to allow for 4400 to 4500 with 2 cores active, maybe 4600 with 1 core active? This is easy
with Clarkdale (my i3 550 is running at 4.7 atm, but I think it could handle 5+ on a better mbd) but Lynnfield is a different beast. Either
way, I welcome your input if this is something you experimented with. I'll be using a lapped TRUE RevC (or maybe a TRUE black).
Ian.
This was my 24/7 overclock 1.36v full load http://valid.canardpc.com/show_oc.php?id=1985541 after that it needed alot of vore
This is as far as I have tried with 1.45v bios with HT On http://valid.canardpc.com/show_oc.php?id=1985664 seems to be a good little chip but it wasn't stable at those settings
I had a EVGA P55 FTW 200 MB and it was great with the i7 875K. My chip could do 4.0GHz HT On at 1.19v bios and 1.23v full load. I really didn't do much to overclock it just set 160 because of my 1600 ram and uped the multiplier. I didn't change most of the voltages to get that overclock just set the ram alittle over 1.5v, didn't touch the vtt and uped the vcore.
If you want pm me I can show you some pics of my bios settings for my 4.3GHz overclock, And you can see I didn't have to do much to get there
932 OverKill
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932 OverKill
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