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#1 |
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Hitman
Joined: Jan 2011
Location: Solihull, Birmingham
Posts: 757
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AMD Phenom II X6 1055T - Overclock Guide
Hey, this is my first guide so constructive criticism only please, just sharing what i know with those that may find it useful
![]() Ok so the 1055T is one of the most overclockable and great value CPU's on the market at the moment and for its £140 price tag it peforms very well indeed, obviously if outright performance is your thing then there is no comparison to the Brand new i7 990X (Gulftown), which i believe is an absolute titan of a chip, but also at the moment, especially for gaming, a massive overkill. This guide is just a basic BIOS settings walkthrough and stability checks for 3 main increments i clocked mine up in. First Increment - 3.20GHZ - A decent Overclock for a beginner, nice and safe and in my opinion can be easily ran on a stock heatsink if your ambient room temperature is in the low 20's (Celsius) I am doing this from an asus crosshair board, though i assume most decent boards will have similar options. First and foremost AMD turbocore MUST be off, chances are it will destabilize your entire overclock and make ur cpu run much hotter than it should be. Also at the bottom (most likely) of your overclock screen, disable CPU and PCI-E spread spectrums and the cool and quiet feature (possibly in a seperate CPU settings interface) Then we set CPU control to 'Manual' out of the choices, auto manual and cpu level up, this then gives us the options of FSB speed and Multiplier, which may be set to auto or a bios standard, we want to set our multiplier to 14.00X, most likely the highest option on the board, unless it can be unlocked (feel free to mention if you know) and our FSB speed to 229 This means that Multi (14.00x) X FSB (229) = 3206Mhz (3.2ghz) Voltages for a mild overclock like this can generally be left alone, the only things i would change would be the CPU voltage itself which should be about 1.4500V, the rest i left on auto here and achieved a P95 stable overclock with it. 2nd Overclock Increment - 3.80Ghz - A common and effective overclock - can prove very stable and a nice improvement over the previous increment Here i shall just list the data/numbers required for the overclock as most of the procedure is listed for the previous overclock - if anyone wants more detail or 'human' description of how to do it feel free to ask/comment. Clock Speed 3808Mhz (3.80ghz) - 272 x 14.00x Load Line Calibration - Auto CPU voltage - 1.4500 -1.4625V (this incremental change can make the difference between stable and unstable from my experience CPU/NB voltage - 1.2500V CPU VDDA voltage - Auto DRAM voltage - 1.65625V (1.5000V can work fine) HT voltage - 1.40450V NB voltage - 1.12625V NB 1.8V voltage - Auto SB voltage - 1.33825V S5 1.2V voltage - Auto CPU Spread Spectrum - Disabled PCI-E Spread Spectrum - Disabled Cool & Quiet - Disabled Turbo-Core - Disabled CPU Power - 141.60W- Cpuid H/W monitor Problems at this level overclock can be simple, one i made myself is that my DRAM frequency tried to auto scale themself with my clock speed, which meant my 1600mhz ram was trying to run around 2000mhz or something like that, which is obviously insta crashes and sometimes cold boots, so make sure your DRAM freq is below or at its target clock speed 3rd Increment - 4004Mhz (4.00Ghz) The final totally stable stage I have reached! (for now!) I think it was this stage when my ram perfectly alligned to my clock speed at its peak (1600mhz) therefore i was running maximum ram efficiency at 4Ghz stable, a nice performance boost indeed over my stock settings, Ram performance can be further improved by changed a lot of latency, burst and timing settings, TRAS, CAS etc, but will make another thread for ram performance and efficiency when i have researched it sufficiently to the point where i feel confident to share my knowledge. Clock Speed 4004Mhz - 286 x 14.00x Load Line Calibration - Auto CPU voltage - 1.4625V CPU/NB voltage - 1.2500V CPU VDDA voltage - Auto DRAM voltage - 1.65625V HT voltage - 1.40450V NB voltage - 1.12625V NB 1.8V voltage - Auto SB voltage - 1.33825V S5 1.2V voltage - Auto CPU Spread Spectrum - Disabled PCI-E Spread Spectrum - Disabled Cool & Quiet - Disabled Turbo-Core - Disabled CPU Power - 141.60W 4th Increment 4270Mhz (4.2Ghz) - 305FSB x 14.00X Multi This is my current CPU speed at the moment of this post, i am working to stabilize it, hasnt crashed in 3 days with it but its not totally prime stable, when i have chance to tweak/perfect it, i shal post the successful results, remember however, not every chip of this spec (1055t) will have the same success rate, it may be more or less successful/stable at these settings than mine, each cheap differs, occasionally there is a golden chip which remains stable to very high overclocks, if you have one of these, your a lucky person, treasure it! When i have more conclusive information i will update this thread more, for now, feel free to ask any questions or add any comments or queries (constructive criticism only please, first guide :P) Also check out my ATI radeon 6950/6970 overclocking thread in the graphics card section of this forum! ![]() Jamie - XOUK (Saving thread and updating - work in progress) |
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Last edited by belial8321; 16th Feb 2011 at 01:41.
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#2 |
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Wise Guy
Joined: Jun 2008
Posts: 2,242
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Looking forward to this
have one and to be honest im not great at overlocking it, if possible could you go into detail about northbridge volts/Northbridge VID (apparently the two are different ) and htt volts required etc? Cheers
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#3 |
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Hitman
Joined: Jan 2011
Location: Solihull, Birmingham
Posts: 757
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Ok, all done for now :P comments please if you got em :P
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#4 |
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Hitman
Joined: Jan 2011
Location: Solihull, Birmingham
Posts: 757
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and how come i cant set an avatar
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#5 | |
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Hitman
Joined: Jan 2011
Location: Solihull, Birmingham
Posts: 757
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Quote:
NB voltage - 1.12625V NB 1.8V voltage - Auto For 3.2-4.0ghz it should prove stable
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#6 |
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Associate
Joined: Feb 2011
Posts: 2
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nice one, i will try it as soon as i get a new board.
You didnt mention if you were using the stock cooler or something more advanced as for the ram, you have the XMS3 DHX or just plain XMS3 (1333 9-9-9-24) cheers |
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#7 |
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Capodecina
Joined: Sep 2009
Location: Dormanstown.
Posts: 20,018
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Lower multi, higher bus speed will result in higher overclocks.
Highest I've ever done on this 1055T was 4.375GHZ IBT stable. |
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#8 | |
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Hitman
Joined: Jan 2011
Location: Solihull, Birmingham
Posts: 757
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Quote:
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#9 |
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Hitman
Joined: Jan 2011
Location: Solihull, Birmingham
Posts: 757
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#10 |
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Wise Guy
Joined: Apr 2008
Location: UK
Posts: 1,349
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Is this the standard retail (125w) 1055t or is this is the elusive "oem" version? (95w)
I've been thinking of picking one of these up for a while and have been hearing they are amazing clockers
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#11 |
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Hitman
Joined: Jan 2011
Location: Solihull, Birmingham
Posts: 757
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#12 |
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Hitman
Joined: Jan 2011
Location: Solihull, Birmingham
Posts: 757
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hah, i forgot about this, might do some work on it later
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