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Old September 11, 2010, 02:27 PM
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Default SMP folding on a 1055t

Well I have to start by saying I'm pretty dissapointed with my 1055t OC. I'm only able to get it stable around the 3.6GHz mark. If anyone has had luck getting it to run faster on an 890 Gigabyte board, I'd love to get a PM with a settings screenshot or some advice for FSB/NB settings.

But anyway... I haven't seen anyone post numbers for this yet, so I thought I'd throw mine up. I don't know what this would get at 4GHz, but so far I'm pretty happy with the numbers at my mild OC. I believe this is on par with stock i7 930 speeds? Pretty dang good for it's price point, espescially when you take in to account I'm 400MHz off the target OC for these. Numbers may get a bit higher as the calculations even out... we'll see.

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Old September 11, 2010, 02:38 PM
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Couple of things to check.....

First, verify if you're running (1t) vice (2t) and check your rated memory settings... chances are the memory is rated @ (2t).

Second... what are you running for NBv? I found I had to bump NBv up pretty high (when compared to what the board allows) once I got above 3.6G with my 1090t.

edit: Also... what are your "FSB" speeds, and are you keeping your HT and NB within specs while you raise FSB up?
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Old September 11, 2010, 03:01 PM
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Quote:
Originally Posted by sswilson View Post
Couple of things to check.....

First, verify if you're running (1t) vice (2t) and check your rated memory settings... chances are the memory is rated @ (2t).

Second... what are you running for NBv? I found I had to bump NBv up pretty high (when compared to what the board allows) once I got above 3.6G with my 1090t.

edit: Also... what are your "FSB" speeds, and are you keeping your HT and NB within specs while you raise FSB up?
Memory is 1t. I've bumped NBv up a bit, but not too crazy. I'll have to check BIOS and see. I'm running the FSB around the 2500 range or so I believe, again I'll need to jump in to BIOS and check. I know I should be running it higher than that to get a faster OC, but when I move it to the 2800 range, I get a post failure due to OC. Is this because it needs more juice to the NB maybe? And my HT is almost bang on the 2k it should be.

*EDIT* At my current OC I am running @ 1.45v for the CPU. But I tried all the way up to 1.6 for the 4GHz range before I dropped back down. I know my issue isn't CPU voltage for sure.
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Old September 11, 2010, 03:08 PM
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As I thought... numbers are balancing a little higher

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Old September 11, 2010, 03:25 PM
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Overdrive pic for NB settings:

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Old September 11, 2010, 03:55 PM
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is that 11k points? nice.

play with the nb dividers. thats what usually nets me better oc's.
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Old September 11, 2010, 03:57 PM
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I'm guessing that 14X is the top multiplier for the 1055t? Your FSB is a lot higher than mine is, but then I've got an unlocked multi.

I'd suggest bumping the NBv up a bit, and drop your memory down to 2t for now, and loosen the timings. Not sure how much it actually helped (I'm convinced that the great majority of sub 4G OC problems with the PH II chips are mostly memory/NB related) but I also bumped my HTT up a bit as well to bring it a bit closer in line with NB.

It took me quite a while to get a good stable OC on the PHII platform.... so much so that I was starting to get frustrated... I'd have a folding stable OC that'd go fine for a month, and then it would start to crap out on me... ended up locking in the secondary memory settings as I was starting to suspect that the "auto" settings were adjusting themselves (tightening) on each boot up to and beyond the truly stable point.

edit: also have a look in your bios to find the cpu - NB link voltages and bump that up a tad.... I believe there's also one for the IMC (CPU - VDDR or something like that).
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Old September 11, 2010, 03:58 PM
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Make sure the HT stays at 2000Mhz or below. A bit over is fine but anymore and you're asking for trouble.

Try pumping up the NB voltage and keep the memory running at stock speeds at proper Vdimm. This includes the timings, and change it to 2T. Try dropping the NB multiplier down to 8.5 as well. You never know...
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Old September 11, 2010, 04:04 PM
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Quote:
Originally Posted by geokilla View Post
Make sure the HT stays at 2000Mhz or below. A bit over is fine but anymore and you're asking for trouble.

Try pumping up the NB voltage and keep the memory running at stock speeds at proper Vdimm. This includes the timings, and change it to 2T. Try dropping the NB multiplier down to 8.5 as well. You never know...
HTT on the 890FX chipset is a bit higher than on previous versions... I was shooting to keep it below 2400.
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Old September 11, 2010, 05:44 PM
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Thanks for the tips gang. I'll be messing with the OC tonight and tomorrow and I'll let you know how it goes. For now I'm 54% in to this WU and I'm waiting to finish before I reboot and mess around with the settings again. But the good news is my numbers have balanced out over time to be much higher:

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