AMD Thuban X6 OCing database

[Sunny129]

time to bring this thread back from the dead...


* CPU Model: AMD Phenom II X6 1090T
* CPU Stepping: CCBBE CB 1020 DPMW
* CPU Frequency: ~3700 MHz
* CPU vCore: 1.375V (BIOS)
* CPU Multiplier: 18.5
* CPU Turbo: Disabled
* CPU NB Speed: 2400 MHz
* HT Bus Speed: 2400 MHz
* HT Link Speed: ~200 MHz
* RAM Brand and Model: Mushkin Redline DDR3 1600/PC12800 (model #996805)
* RAM Speed: default ~1600 MHz
* RAM Timings: 6-8-6-20-1T
* RAM Configuration: 2x2gb
* RAM vDIMM: 1.6V
* Motherboard: ASUS M4A89GTD PRO/USB3
* Chipset/Socket: 890GX + SB850, AM3
* Cooling: Tuniq Tower 120 Extreme (fan on low, ~1,100rpm)
* Temps: 22°C Idle / 47°C Load
* Operating System: WinXP Pro 2002 SP3
* 32/64-Bit: 32
* Stable/Suicide/Untested: ~24.5 hrs of Einstein@Home (all 6 cores @ 100% load) - stable


i know the picture shows an OC of 3900MHz, and that did hold stable for 24+ hours, but i decided to back down the OC to 3700MHz b/c i didn't like my max temperature of 47°C @ 3900MHz. it should be noted that my Tuniq Tower is blowing air front-to-back and out the rear case fan. My case is a CoolerMaster Gladiator 600, and i've got 120mm fans at the front, rear, and top of the case.

 

[richierich1212]

looks good Sunny, so everything is ok now since that ASUS mobo switch is off now?

 

[Sunny129]

looks good Sunny, so everything is ok now since that ASUS mobo switch is off now?

lol yeah...although i'm still learning as i go. and unfortunately my stress test only made it ~3.5 hours before the machine randomly restarted. but that's normal when experimenting with increased frequencies and increased voltages. anyways i've made some changes in the BIOS and will edit the above post.

 

[richierich1212]

what's your CPU-NB voltage at?

 

[Sunny129]

1.25V now...it was at 1.175 before. i have a feeling it wasn't getting enough juice @ 2600MHz and that it might have had something to do with my hang-up.

 

[brownstone]

Quick question, why would my core voltage reading differ between my bios, amd overdrive and cpu-z? Bios and AMD overdrive state 1.3125 (which is what I set if for in bios) and on cpuz it fluctuates right around 1.34...

 

[Sunny129]

Quick question, why would my core voltage reading differ between my bios, amd overdrive and cpu-z? Bios and AMD overdrive state 1.3125 (which is what I set if for in bios) and on cpuz it fluctuates right around 1.34...

some motherboards tend to slightly over-volt or under-volt. for instance, if you look back to my OC specs, you'll see that my Vcore is set to 1.35V in my BIOS, but CPU-Z is reading it at 1.392V. my system actually crashed with those settings, so i've since upped Vcore to 1.36V, but CPU-Z still reads it at 1.392V. so my mobo has a tendency to over-volt by .03-.04V (at least with Vcore...i can't confirm this for all the other voltages yet).

 

[richierich1212]

yeah some mobos have load line calibration which bumps up vcore

 

[Sunny129]

yeah some mobos have load line calibration which bumps up vcore

ahh...i saw that in the BIOS and wasn't sure what it was for. have you noticed similar over-volting w/ your M4A89GTD PRO/USB3 like i did? have you messed with the load line calibration at all?

 

[Sunny129]

another question - i know some of you posted your OCs over half a year ago, but i'm hoping some of you are still subscribed to the thread and see this - can you confirm which idle/load temperatures you documented? did you list your core temps or your actual CPU temp?

TIA and Merry Christmas everyone,
Eric

 

[Markfw]

No idle temps, mine is never idle. 45c full load @ 4 ghz though

 

[Sunny129]

No idle temps, mine is never idle. 45c full load @ 4 ghz though

i'm glad you saw this Mark, b/c i actually have a few questions specifically for you.

1) i take it the 45°C temp you mentioned above is the temperature of your individual cores (and not the CPU itself)?
2) how the heck are you staying so cool under full load @ 4GHz? what rpm is the fan on your Core Contact running? the reason i ask is b/c the fan in your Core Contact (assuming you're using the fan that came with it) and the fan in my Tuniq Tower 120 Extreme have essentially the same specs: 1000-2000 rpm ±10%, 16-20 dBA ±10%, and both have a max of 90.65 CFM. basically i'm wondering how loud your system is, b/c i can't maintain ~44°C under full load @ 4GHz unless my Tuniq Tower fan is spinning full-speed (1800rpm), at which point it is FAR too loud for my liking.

btw, i also don't really have an idle temp either, as i'm crunching for Einstein@Home, SETI@Home, and LHC@Home @ 100% CPU load 24/7. however i decided to suspend my DC projects for a short while just to see where my idle temp was at.

also, i wanted to add that its 2:45pm where i'm at right now, and its arguably the hottest part of the day both outside and in my master bedroom where the computer is, and currently i'm at 46-47°C under 100% CPU load @ 3.9GHz, and the fan in my Tuniq Tower is spinning @ 1500rpm. the noise is bearable for daytime use, but i would never be able to sleep with the fan this high i don't hink.

 

[Markfw]

Well, I had to do this from memory. I am 4000 miles away from the system right now, so I can't answer any better right now. BUT, as far as the temp, the software that came from the motherboard mfg and core temp both say the same thing,

 

[Sunny129]

thanks for the info Mark. while PC Probe II (the software provided by ASUS along with my mobo) unfortunately only records a CPU temp and not actual individual core temps, i do happen to use Core Temp and WCPUID's PC Wizard 2010, and they're both reporting the same core temps.

i don't know when you'll be near your 1090T rig again, but if you happen to remember, i would appreciate it very much if you could let me know at what RPM your Core Contact fan is spinning, what your ambient temps in the house are, and how loud you system sounds to you (i know that's subjective, but any opinion is better than none at all in this case).


thanks again,
Eric

 

[richierich1212]

mine stays at low 40s under load, pretty silent with gentle typhoons too

 

[Rhoxed]

46C full load @ 4.2 for CPU temp - cores read 36C (but they are borked)

idle is 32C temp with 16C cores.

Ambient is about 22C

EDIT: i should clarify i have a xig thors hammer with 2x 3000RPM Kaze's on it (hooked to fan controller) i run them in silent mode ~1000 rpm

 

[Sunny129]

well i had another crash last night after over 48 hrs of Einstein@Home with all 6 cores at 100% load. it was ~3:00am and i didn't feel like troubleshooting it right then, so i backed the CPU down to ~3.7GHz for the time being. i suspect the CPU-NB or the HT Link, which brings me to another question. i'm sure many of you are familiar with Dolk's Guide to the Phenom II article over at overclockers.com, as it seems to be one of the more popular references to OCing the Phenom II. in a portion of his article he stresses the importance of having the CPU frequency and the CPU-NB frequency "within spec" of each other. that is, the CPU-NB clock should not differ too much from the CPU frequency. he then provides a formula for calculating the CPU-NB frequency based on a given CPU frequency (specifically, CPU-NB freq. = CPU freq. X 2 / 3.15). obviously this formula is more of a guideline than it is an exact calculation of what your CPU-NB should be. he also provides a chart of benchmarks that does seem to generally support his theory & formula. but i don't think he mentions once in his article what the actual benchmark is measuring. here's the chart - i know its looks generic enough to be from just about any software suite, but i'm hoping someone might recognize it:

then there is the issue with erratic data. for instance, if was take a CPU freq. of 3000MHz and use the formula to get a rough calculation of what the CPU-NB freq. should be, we get 3000*2/3.15 = ~1900MHz. if we then reference the 3.0GHz section of the chart to see system performance should be (at least i think that's what it might be measuring) at various CPU-NB clocks, we quickly see that our calculated value of ~1900MHz sits half-way between 1800MHz and 2000MHz. while the 2000HMz CPU-NB freq. wins the benchmark by a healthy margin (at a CPU freq. of 3GHz), performance with the CPU-NB set to 1800MHz is dismal.

don't get me wrong, i think what Dolk did for the overclocking community is great. i'm just looking for more clarification from the chart, and i don't yet have a membership @ overclockers.com, so i thought i would ask and here first and see if i could get some responses from those who might have referenced his article while first learning to OC your Phenom II CPU.

 

[Sunny129]

ok guys, so i made some changes since posting my original OC back on 12/23/10. i have since purchased some additional parts with the intent to build myself a home office PC for my guest room/home office. to keep the list simple, i got myself an AMD Phenom II X4 965 BE / ASUS M4A78T-E / OCZ PC12800 Special Ops Edition (2 x 2GB) for CPU/mobo/memory. but instead of assembling all of that stuff together, i decided to shut down the other PC i built a few months ago and swap some parts around. so now my setups are as follows:

Master Bedroom PC: AMD Phenom II X4 965 BE / ASUS M4A89GTD PRO/USB3 / OCZ PC12800 Special Ops Edition (2 x 2GB)

Home Office PC: AMD Phenom II X6 1090T BE / ASUS M4A78T-E / Mushkin Redline PC12800 (2 x 2GB)

the 965 BE system has been running at the stock clock (3.4GHz) for the past week while i've been attempting to find a stable OC on the 1090T system...and here it is:


* CPU Model: AMD Phenom II X6 1090T
* CPU Stepping: CCBBE CB 1020 DPMW
* CPU Frequency: 3700 MHz
* CPU vCore: 1.425V (BIOS)
* CPU Multiplier: 18.5
* CPU Turbo: Disabled
* CPU NB Speed: 2000 MHz
* HT Bus Speed: 2000 MHz
* HT Link Speed: 200 MHz
* RAM Brand and Model: Mushkin Redline DDR3 1600/PC12800 (model #996805)
* RAM Speed: default 1600 MHz
* RAM Timings: 6-8-6-24-1T
* RAM Configuration: 2 x 2gb
* RAM vDIMM: 1.64V
* Motherboard: ASUS M4A78T-E
* Chipset/Socket: 790GX + SB750, AM3
* Cooling: Tuniq Tower 120 Extreme (fan on low, ~1,100rpm)
* Temps: 21°C Idle (max) / 38°C Load (max)
* Operating System: WinXP Pro 2002 SP3
* 32/64-Bit: 32
* Stable/Suicide/Untested: 24+ hrs of Milkyway@Home/Einstein@Home/SETI@Home (all 6 cores @ 100% load) - stable

...a few notes:
1) Why only a 3.7GHz OC when temps are so much more manageable this time around? b/c the 1090T needs more voltage to remain stable with the M4A78T-E than it did with the M4A89GTD PRO/USB3 clock for clock...and i'm only comfortable bumping the voltage up so far. i don't know why that is, its just something i noticed after trying to OC the same chip in two different mobos. i was stable @ 3.8GHz & 1.4625v, as well as 3.9GHz & 1.5v, but i was starting to get visual artifacts w/ my onboard graphics, so i brought the OC back down.
2) Why are temps so much more manageable this time around? i think its a combination of things. first, the system is now in a Rosewill ARMOR case, which is almost entirely mesh, and comes ready with (4) 120mm case fans, (1) 200mm side panel fan, and (1) 80mm mobo tray fan...and its not that loud believe it or not. secondly, my Tuniq Tower is now blowing air bottom-to-top, and out the top exhaust fan (as opposed to front-to-back in my other case with my previous setup). the Tuniq Tower fan is still on its lowest setting, just as it was with my previous setup.
3) so now that i have reason to believe that my new case and alternative mounting method of the Tuniq Tower are responsible for my much improved cooling, i'm tempted to start swapping parts around again. if my 1090T can OC w/ less voltage clock for clock on my M4A89GTD PRO/USB3 than it can on my M4A78T-E, then i think its time to move the 1090T and Mushkin Redline memory back to the M4A89GTD PRO/USB3, install it in the Rosewill case, and see how far this 1090T is really capable of OCing...

 

[Zapper48]

It's been a long time since I've been on the forums lol. I picked up a 1090T to play with at Christmas. I haven't clocked it much but I did find that some boards thay say they are compatable with the higher watt Hex core just aren't able to handle it even with updated
bios.I'll start clocking abit now that I have a few days off in a row.

 

[flexcore]

@ Sunny129
* CPU NB Speed: 200 x 16 = ~2000 MHz
* HT Bus Speed: 200 x 16 = ~2000 MHz

These don't add up? 200 x 16= 3200, or am I missing something here?

 

[Sunny129]

@ Sunny129
* CPU NB Speed: 200 x 16 = ~2000 MHz
* HT Bus Speed: 200 x 16 = ~2000 MHz

These don't add up? 200 x 16= 3200, or am I missing something here?

fixed it...i don't know why i had the "200 x 16" in there lol. but my CPU NB and HT Bus frequencies are in fact currently @ 2000MHz...sorry for the confusion.

 

[flexcore]

NP. I was just wondering what I was missing. Nice testing you got going. You leaving all other voltages at stock?

 

[Sunny129]

yes sir. only Vcore and Vmem has been adjusted. Vcore likes to default to 1.3v when left on auto, and i really don't know what Vmem likes to default to when left on auto b/c i have no software to monitor Vmem from within WinXP. nor do the mobo health diagnostics give me a Vmem reading while in the BIOS. so not only do i not know what Vmem defaults to, but i also don't know how accurately the mobo is maintaining Vmem after i manually set it to 1.64v.

speaking of which, have any suggestions on some software that does monitor Vmem? i currently use a mix of programs to monitor voltages, temps, and fan speeds (ASUS PC Probe II, CPU-Z, and Core Temp), but none of them provide info on Vmem. i had no luck w/ Motherboard Monitor 5 or SpeedFan when the 1090T was on the M4A89GTD PRO/USB3 mobo, but i haven't tried either with the M4A78T-E yet. i suppose i ought to give them a shot first, but i'm still open to suggestions...

 

[Morgot]

- Core: 4.2Ghz
- NB: 2007.87Mhz
- vCore: 1.536
- vNB: Auto
- Ram Speed / Timings: 1600 9-9-9-24
- FSB: 200
- Multi: x 21.0
- Motherboard: Asus Crosshair Formula IV
- Cooler: CM 212 Hyper Plus
- Stable: Y

http://valid.canardpc.com/show_oc.php?id=1654318

 

[madmanmarz]

AMD Phenom II X6 1055T
pH-EO
4228.39 MHz
1.624v
14X
Disabled
2114 MHz
302 MHz
DDR2-1006
5-5-5-13
4 GB (2 x 2 GB)
2.1V
MSI 790XT-G45
AM2+, 790X + SB710
Water - 1x - Swiftech 120mm Radiator, Enzotech SCW-REV.A, Quiet one 1200 Aquarium pump, Scythe Ultra Kaze 120
Temps: Coretemp - 21C Idle 29C Load - Overdrive 22C Idle - 40C Load
Windows 7
64
Untested (partially)
I could've gone higher but It would've required more voltage. Not bad for a 790XT AM2+ MOBO with a simple NB cooler and no VRM cooling (added some little copper dudes). Got another radiator coming in in two days, might decide to push a bit more if temps drop any. All fans are on low and case is open right now because of troubleshooting. 600W Rosewill PSU is pushing it as it is (smoked up the other day), so I don't want to stress it yet. Waiting on a new 1200W Mushkin, came in today and popped right off the bat w/ stock settings. I think I can probably suicide a 4400 on this thang but I think I'ma stick to 4.2. There is certainly still headroom although vcore is high already.