The AMD Phenom II OC'ers Club

[de.das.dude]

indeed its a excellent cooler, its hard to overheat my cpu it never goes past 55c full load at 4ghz 1.4750v

i am thinking of getting a TX3 myself. seems to be the only one fitting my case.

 

[gymwhaley]

not sure not over clocking in bios using phenommsrtweaker. bios just does not like me its in hex and when i set the values it wont post only thing i was able to get workiing right was the memory and timings at 1066 6 6 6 18 24. right now bios cpu volts at auto program 1.375 autos up to 1.45

 

[Magikherbs]

Hi all !
Ive been running stable for more than 2 weeks at my current oc. The previous 2-3 weeks the cpu was oc'd to 3.4ghz, 1.3v. If I leave the CPU volts bios setting at AUTO, it sets it at 1.4v w/ the CPU multiplier @17.5x. That made my idle temps jump to the mid to high 40's Most everything else is set to stock but using manual settings. Cool and quiet is disabled aswell.
I used Powerproducer yesterday to convert and burn a 1.2gig AVI. Approx 16mins to convert and 5-7 to burn lol. Cpu load was 90-100% for most of that and temps were, Cpu 40C, Vcore 36-40C. None of my fans are turned up but Ive since added a stock AMD cpu fan. I hooked its top left corner to the bottom right corner on my AMD HSF, see pic. Ive since fully suspended it so its not leaning on me GPU ahah.

Q. If temps are low/acceptable, can an OC still become unstable?
I know some chips are golden for OC and others can crash even with a mildish OC like mine. Just wondering how much the temps affect things.
Im about to try 3.7hz, for the first time. Ill notch up the volts a step or two, but something tells me P II's are not as power hungry as you may think.

 

[gymwhaley]

4.0 at 1.475 volts autos up to 1.56 66c occt 3min i have cpu shutting down at that temp, but was stable for those three min

 

[Magikherbs]

So far soo good lol. Ive benched using 1.3125, 1.3250 and 1.3375 volts with no performance difference and a minor temp gain. So Im staying with 1.3125v and may drop it once more to1.3v later on.
I plan on running Prime95 and/or SisSandra soon after I redo Wundows b/c I find clearing the CMOS then a fresh install usually make new/added parts/ oc's run better. heehe
But for now.. Need For Speed Shift is on the agenda ..
I am still fairly new to overclocking, so any tips and advice would be greatly appreciated.
Cheers !

 

[Magikherbs]

4.0 at 1.475 volts autos up to 1.56 66c occt 3min i have cpu shutting down at that temp, but was stable for those three min

Have you tried dropping the volts ? Id try 1.4 but Ill bet you'll be fine at 1.37ish.
http://products.amd.com/en-us/DesktopCPUSideBySide.aspx?id=618&id=560

Looks like you're a half volt over the limit too.
If Im doin fine at my config, 3.8 to 4.0ghz should not need that much volts.
Good luck

 

[gymwhaley]

bsod amything under 1.475 at 4.0

 

[mastrdrver]

My 955 default VID is 1.4v and needs 1.5v to reach 4Ghz. Its a C3 too which helps.

I think the best part of mine is I need 1.45v on the cpu-nb to reach 2870mhz. Can't quite reach 3Ghz. Though this is all on air so that has to be worth something.

 

[Magikherbs]

bsod amything under 1.475 at 4.0

What happens when you drop the volts @3.8ghz? And keep in mind that some chips are uber Oc'ers and some cant be upp'd by more than 200mhz.. heh
Are your other mobo voltages set to auto? I have my NB and HT link and dram volts manually set to defaults.. 1.2 and 1.1v, 1.5v.. . Microcode update and virtualization are on, cool n quiet and spread spectrum are off, btw.

 

[Magikherbs]

My 955 default VID is 1.4v and needs 1.5v to reach 4Ghz. Its a C3 too which helps.

I think the best part of mine is I need 1.45v on the cpu-nb to reach 2870mhz. Can't quite reach 3Ghz. Though this is all on air so that has to be worth something.

my friend's P II x4 2.8ghz, runs stock at 1.35v and his temps are waay high also. Even at stock cpu speed. I think it depends on the motherboard/chipset as to what default volts you are given... eg my ram is 1.5v but when set to AUTO, the bios sets it to 1.6 or 1.65, cant remember excactly lol.

 

[gymwhaley]

What happens when you drop the volts @3.8ghz? And keep in mind that some chips are uber Oc'ers and some cant be upp'd by more than 200mhz.. heh
Are your other mobo voltages set to auto? I have my NB and HT link and dram volts manually set to defaults.. 1.2 and 1.1v, 1.5v.. . Microcode update and virtualization are on, cool n quiet and spread spectrum are off, btw.

volt using phenommrstweaker for cpu is set at 1.375 for 3.8 anything lower bsod.. nb in bios is auto but software has it at 1.2 and it goes up it is now sitting at 1.25 prob goes up to 1.3 i have not checked. i did have it sitting at 1.25 before today when i move it down 1.2 but at 1.25 it started at 1.28 went as high as 1.36 any thing beside memory on this xfx 8200 board it just wont post maybe my hex volts are wrong.. but it just wont take me uping volts or nb from 2000 2400 or ocing cpu. nb vid nb fid in bios are hex dont know what to put them thought i had the right numbers from what i was reading awhile ago, but it does not post. then i found thee software and was able to oc. up nb from 2000 to 2400 using cpu-tweaker

 

[mastrdrver]

my friend's P II x4 2.8ghz, runs stock at 1.35v and his temps are waay high also. Even at stock cpu speed. I think it depends on the motherboard/chipset as to what default volts you are given... eg my ram is 1.5v but when set to AUTO, the bios sets it to 1.6 or 1.65, cant remember excactly lol.

Cpu and cpu-nb vids are fixed for each chip independent of the board at stock speeds.

All AM3 quads are 1.1v and I think all others are 1.175v for the cpu-nb vid. Cpu vid varies per chip. I had a 555 that would unlock fully and it's vid was 1.375, my 550BE C2 that also fully unlocks vid is 1.35, 955BE 1.4, Athlon X3 435 C2 that is a deneb die and fully unlocks with L3 cache is 1.325 and runs very, very cool even when adding volts both locked and unlocked, and my 805 C2 is 1.325 (I think been a while).

The cpu vid is all over the place and doesn't matter what board it is in as I've had all those in many and at stock speeds those are the default cpu vids and don't change. The Athlon is the coolest. It will run at room temps on default volts on any type of cooler I have. Never really gets much warmer that room temperature which is surprising for a C2. My 955 runs very, very warm. Even under my Noctua D14 it will run mid 40s at stock volts when running stress apps. Run 1.4v on both cpu and cpu-nb and it runs 50C max. I did initially try it with my Vendetta 2 and it would hit 55C+ at stock volts. Even with a 2000 rpm 120mm fan on it.

 

[de.das.dude]

just did new overclock!

previously, i had a 3.6GHz on the cpu, 2.4GHz on NB and HT
this time.
i did 3.5 on cpu and 2.5 on nb and ht (HT has been kept at 2000 because i didnt see any performance advantage)

 

[Magikherbs]

Well.. I ran @3.7ghz 1.3125v, for a few more hours the other day before redo'ing the OS. The windows install went fast but crashed during windows update. I had disdabled SMART in the bios,just before that. I then enabled it and re did windows, only to see it crash during the windows update once more. So Im back to 3.5ghz land haha There was no BSOD or error messeges, the machine simply shut off. The NB/CPU/SB volt were manually set and I have since set all back to auto, except CPU and DRAM volts.
I know Im skimpin on the volts, but why then did it run fine for over 4 hours ? And complete several runs using Passmark and windows exp rating.

 

[Magikherbs]

some phenoms came in two revisions. 125w and 140w. the 125's run cooler than the 140's.

also its a good idea to give the cpu a little extra voltage for better stable operation.

a good rule of thumb when oc'ing is have an aftermarket hsf before oc'ing. cooler master

has a good one for $30 bones.http://www.coolermaster-usa.com/product.php?category_id=1623&product_id=2922

this one for example will keep your oc'ed cpu at around 30c's idle and around mid 40c's full

load.hope this helps.

I rma'd a new HSF from AMD, 2 months ago and glad I didn't waste money on another. As far as I know, they are the new AMD standard.

 

[de.das.dude]

Well.. I ran @3.7ghz 1.3125v, for a few more hours the other day before redo'ing the OS. The windows install went fast but crashed during windows update. I had disdabled SMART in the bios,just before that. I then enabled it and re did windows, only to see it crash during the windows update once more. So Im back to 3.5ghz land haha There was no BSOD or error messeges, the machine simply shut off. The NB/CPU/SB volt were manually set and I have since set all back to auto, except CPU and DRAM volts.
I know Im skimpin on the volts, but why then did it run fine for over 4 hours ? And complete several runs using Passmark and windows exp rating.

i dont keep my OC all the time. my cpu is just a month old. and i OC for achievements, do benchmark and its back to 3.0GHz for me.

 

[Velvet Wafer]

i dont keep my OC all the time. my cpu is just a month old. and i OC for achievements, do benchmark and its back to 3.0GHz for me.

Under 1.5v vcore, and 1.4v cpu-nb, i hardly see you killing a Phenom 2,if you dont overheat it past 65c
also, most phenoms can reach 3.8ghz with 1.3v-1.4v.
The ones that fail to achieve that, are mostly unlocked procs, and lemons.
1.2-1.4v on the CPU-NB should give nearly every Phenom2 owner about 2700-2800 NB, but it can be within 2600-3000 NB, under certain circumstances.

 

[de.das.dude]

Under 1.5v vcore, and 1.4v cpu-nb, i hardly see you killing a Phenom 2,if you dont overheat it past 65c
also, most phenoms can reach 3.8ghz with 1.3v-1.4v.
The ones that fail to achieve that, are mostly unlocked procs, and lemons.
1.2-1.4v on the CPU-NB should give nearly every Phenom2 owner about 2700-2800 NB, but it can be within 2600-3000 NB, under certain circumstances.

lemons.
LOL

 

[cadaveca]

Yeahh..

LEMONS.


I have one.

 

[Velvet Wafer]

lemons.
LOL

Here in Germany, we call them Monday Models... just a nice term for a thing, not as good as others of its kind

Yeahh..

LEMONS.


I have one.

yeah... that seems to be a really bad OCer.... must have passed the binning only by a scratch,you poor one!

 

[fullinfusion]

Hey Velvet! how's things?

Any way how High can I go?

How's this?

Ah Winter is on it's way lol

Ya gotta love how high this 5970 clocks after Sapphire's latest Bios release.

 

[Magikherbs]

Even if mine wont get past 3.5ghz, Im plenty happy with it. The 400mhz boost has opened up some/most of the bottleneck and Ive never seen Win7 so perky ! tee hee

 

[fullinfusion]

Even if mine wont get past 3.5ghz, Im plenty happy with it. The 400mhz boost has opened up some/most of the bottleneck and Ive never seen Win7 so perky ! tee hee

Im past the bottle neck! I just cant crank the gpu any higher.... It's at its limit even using MSI Afterburner :shadedshu...

 

[de.das.dude]

another OC!

 

[Corduroy_Jr]

Im past the bottle neck! I just cant crank the gpu any higher.... It's at its limit even using MSI Afterburner :shadedshu...

what a guy phenom 1090t dont count its the phenom quad club lol