The Phenom II List of Overclocks

[Daveburt714]

Hey pershoot, glad to see ya got the bugs worked out man!

I've been working on my 3.9Ghz stable OC, see this post:
http://www.xtremesystems.org/forums/...&postcount=722

I know it's been said 1000 times, but it really seems like these things like staying cool. I've ran OCCT a number of times and everytime my chip gets ~55c it fails. Every run I've made stays stable until it gets around that temp...
(I'm on water BTW)

I backed it down to 1.55v on the CPU, and lowered the HTRef to 204 (3.876Ghz) and it was running fine for about 1/2 an hour, but I saw temps hit 51c and I got greedy so I lowered the voltage 1.5375 and it crashed...
I'm pretty sure it was actually good other than my impatience.

Don't know if you've had the same experiences or not, but I know we have the same stepping. It might be something you want to watch...

[Titan7171]

well heres where I am now

Phenom 2 940BE

CACVC AC 0850
9074212L80111

3.9ghz

1.55v

2800mhz

2000mhz

1066

2x2gb

Unganged

Asus M3A79-T Deluxe

Xigmatec 1284EE

Windows Vista Ultimate x86 or x64




btw Im only getting like 12,1xx at 3.9ghz in cinebench???

[Lastviking]

For the time being, Ill smack up a 24hour after I decide which bios I'm going to stick with.

Gigabyte 790Gx/OCZ vindicator......

Load temp and what fan do you use on the cooler? and also one or 2 fans?

[Cybercat]

Well I tried the new beta BIOS. No new results to report.

[faior]

The max and suicide SS (cold air)
http://valid.canardpc.com/show_oc.php?id=490074

http://faior.miumau.net/wprime4.JPG

cacvc ac 0849apaw

[Dumo]

3Ds with newest v. card driver...Seems like this is max for air.

[pershoot]

Hey pershoot, glad to see ya got the bugs worked out man!

I've been working on my 3.9Ghz stable OC, see this post:
http://www.xtremesystems.org/forums/...&postcount=722

I know it's been said 1000 times, but it really seems like these things like staying cool. I've ran OCCT a number of times and everytime my chip gets ~55c it fails. Every run I've made stays stable until it gets around that temp...
(I'm on water BTW)

I backed it down to 1.55v on the CPU, and lowered the HTRef to 204 (3.876Ghz) and it was running fine for about 1/2 an hour, but I saw temps hit 51c and I got greedy so I lowered the voltage 1.5375 and it crashed...
I'm pretty sure it was actually good other than my impatience.

Don't know if you've had the same experiences or not, but I know we have the same stepping. It might be something you want to watch...

hmm i havent noticed the same behavior when i had the v's bumped up a bit (~1.45), but i'm not using as much voltage, so that is probably why...

wish i could take it higher but my cooling has reached its max and where i feel comfy letting the temps get, so i can't increase v's anymore at this stage.

good going so far daveburt on your clocks it's like the lil engine that could (or lil cpu that could, hehe).

[chew*]

Load temp and what fan do you use on the cooler? and also one or 2 fans?

All your answers can be found here. It's comparable to the stock cooler performance wise. 1 fan on the cpu heatsink, clip on fan cooling the board.

http://www.xtremesystems.org/forums/...d.php?t=215130

[Particle]

@Oldguy: Reminder to please put those images in your OP.

[dawei213]

hell of a machine i recommended every single part to one of my friends. thats about the best perf/$ machine you can get.

Yeah, thanks. All in all, it comes to around $600 after MIR. Hopefully I'll be able to sell my old opty setup and get around $250 to $300 so a < $450 upgrade is nice.

[Caveman787]

Titan, How are your load temps with the s1284EE?

Also tighten up those memory timings.

[Lightman]

....

I know it's been said 1000 times, but it really seems like these things like staying cool. I've ran OCCT a number of times and everytime my chip gets ~55c it fails. Every run I've made stays stable until it gets around that temp...
(I'm on water BTW)

I backed it down to 1.55v on the CPU, and lowered the HTRef to 204 (3.876Ghz) and it was running fine for about 1/2 an hour, but I saw temps hit 51c and I got greedy so I lowered the voltage 1.5375 and it crashed...
I'm pretty sure it was actually good other than my impatience.

Don't know if you've had the same experiences or not, but I know we have the same stepping. It might be something you want to watch...

I know it was not directed at my, but I have exactly same behavior as you. As soon as my CPU hits 54-56C it's error or blue-screen!
BTW my CPU is benchable @3.9GHz in most apps, except OCCTP of course
3.85GHz is stable when using 1.475V not stable when using 1.52V . I will try to do some veryfication/validation over the weekend.

PS. I'm starting to see a pattern that OC scales better with volts when benching in 32bit mode. 64bit mode hits voltage scaling at lower threshold. Possibly due to more heat produced in 64 bit mode and/or hotspots in CPU.

[Rammsteiner]

When I get my pay check Im going to upgrade things Also I just heard from my parents they're prolly going to pay for an uncertain amount of driver lessons because they paid a lot for my sister's pregnancy thus far... Hey, I wont refuse

Getting the M2R out again, replace the cooling with Thermalright HR09 MOSFET cooler, 2x Thermalright HR05 IFX coolers for the NB and SB (this time I wont try to use the stupid push pins, I feel very worried about the current HR05 on the SB, it's not all that tight).

EK Supreme Acetal block on the CPU and 2 EK-VGA Supreme Acetal blocks on the HD4870X2 (seems like Ill have to mod the stock HD4870X2 heat sink, but Im going to keep that on though for the RAM and MOSFETs). Ive to get a new case though, prolly going to get a Silverstone TJ07. 360mm and 120mm rads in it should do the job And of course 1/2" tubes, going to be my first watercooling setup though

Lets see where this beasty CPU will land I'd love to get an AM3 board though but to be honest that would be a waste of money for a while. Since this chip already does 3.7Ghz on 1.48~1.49V on air, 4Ghz+ on water is certainly doable. I guess 99% of all PhII's could hit 4.5~5Ghz easy on subzero, so scaling isnt an issue. But well, on water Ill push Vcore real hard, although it's very likely my older 790FXB was just a lemon, I dont feel safe with 4+1 PWM lay-out, 790FX-M2R lay-out is a whole lot more trustworthy.

[chew*]

Hmm Just realized the above was not in the correct format......

Suicide air.



Motherboard - gigabyte MA790GP-DS4H
CPU - Phenom II 940 AMD ( courtesy of AMD )CACVC AC 0848 FPAW
Memory - 4x1g corsair ddrII 800
PSU - Trusty old seasonic S12 500W
HD - trusty old 36g raptor
Cooling - OCZ vindicator ( AIR )

validated as well.....




And a couple benches run right after I shut off prime to remove any doubts.

[batmang]

Does anyone know if the 920 will overclock well on a K9A2 Platinum? With the NB multiplier changing limitation, how are people getting the best overclocks on that board?

[Titan7171]

Titan, How are your load temps with the s1284EE?

Also tighten up those memory timings.

hey whats up, I got some numbers for you

1.35v idle 30c load 43c
1.45v idle 32c load 50c
1.55v idle 35c load 58c

thats using prime for 15 minutes

ok got the ram at 5,5,5,15,24

Well heres a rundown of the voltages for the clocks....all clocks are bench/game stable. Ill be testing for prime stable clocks later on but heres how it worked with this cpu.

stock clock 3ghz to 3.5ghz 1.35v

3.6ghz 1.4v (need to test for lower maybe 1.375v-1.38)
3.7ghz 1.45v idle temp is 36c......(temp was taken while the house was a bit warmer)
3.8ghz 1.5125v
3.9ghz 1.55v
4ghz 1.575v just for screenie and validation. At this point Im almost at my aircooled max level. Im on air and ambiant is 24c.....Ill post load temps as I get them.

so right now my full overclock for the entire system benchable sits like this.

cpu 3.9ghz
bus speed 200mhz
nb 2.8ghz
ht 2.6ghz
memory 1066mhz

4850x2 running at 700/1150

[Bgriffs]

hey whats up, I got some numbers for you

1.35v idle 30c load 43c
1.45v idle 32c load 50c
1.55v idle 35c load 58c

thats using prime for 15 minutes

ok got the ram at 5,5,5,15,24

Well heres a rundown of the voltages for the clocks....all clocks are bench/game stable. Ill be testing for prime stable clocks later on but heres how it worked with this cpu.

stock clock 3ghz to 3.5ghz 1.35v

3.6ghz 1.4v (need to test for lower maybe 1.375v-1.38)
3.7ghz 1.45v idle temp is 36c......(temp was taken while the house was a bit warmer)
3.8ghz 1.5125v
3.9ghz 1.55v
4ghz 1.575v just for screenie and validation. At this point Im almost at my aircooled max level. Im on air and ambiant is 24c.....Ill post load temps as I get them.

so right now my full overclock for the entire system benchable sits like this.

cpu 3.9ghz
bus speed 200mhz
nb 2.8ghz
ht 2.6ghz
memory 1066mhz

4850x2 running at 700/1150

I've got the same cooler and my results are pretty similar there. I just need to get some better cooling over the chipset and pwm sections so I can get 3.8 stable or more out of it.

[Oese]

New one:

Oese
DFI 790FX-M2R
Phenom II X4 940
CACVC AC 0850BPMW xxxx80418
4 GB Ballistix D9GMH
Tagan 2-Force II 700w
Vista 64



I think tomorrow i'll lap the cpu and do some xp32bit benching on the balcony xD

[KELL5]

Does anyone know if the 920 will overclock well on a K9A2 Platinum? With the NB multiplier changing limitation, how are people getting the best overclocks on that board?

You can use WPCREDIT to change the NB multi on K9A2's......or any mobo with no NB multi control

[jonspd]

You can use WPCREDIT to change the NB multi on K9A2's......or any mobo with no NB multi control

care to post a link that shows how>?

[Titan7171]

Phenom 2 940BE

CACVC AC 0850
9074212L80111

3.812ghz

1.55v

2800mhz

2600mhz

1066

2x2gb

Unganged

Asus M3A79-T Deluxe

Xigmatec 1284EE

Windows Vista Ultimate x86

heres OCCT 1 hour I forgot to take a screenie so heres the info from the folder

[batmang]

care to post a link that shows how>?

^^^ Yes, how?

[Ben_Brown]

Well I am selling my Engineering Sample and getting a retail to see if the newer retail steppings are any different. With that said, below is my suicide and my max stable at 1.55 vcore.

Description of pics

#1 - Suicide Run 1m SuperPI (in garage during sub zero weather)

Settings for Suicide Run:
CPU: Phenom II 940 BE (ES)
Stepping: FACOC AC 0825FFM
Frequency: 4340MHz
vCore: 1.7 (in bios)
NB Frequency: 3080MHz
Memory: 2x2GB G.Skill 1066
Motherbaord: ASUS M3A79-T Deluxe
Cooling: Water
OS: Windows 7 x86

#2 - CPU Temp.

#3 - Core 0 temp (the rest were consistently the same)

#4 - CPU Vcore (yes this board sure does like to overvolt under load)


Settings for StableRrun:
CPU: Phenom II 940 BE (ES)
Stepping: FACOC AC 0825FFM
Frequency: 3800MHz
vCore: 1.55 (in bios)
NB Frequency: 200MHz
Memory: 2x2GB G.Skill 1066
Motherbaord: ASUS M3A79-T Deluxe
Cooling: Water
OS: Windows 7 x86

[Caveman787]

Wow titan, love your overclock seems the increased hypertransport speed increased performance atleast a little wonder how much a difference it'll make in gaming.

[Titan7171]

Wow titan, love your overclock seems the increased hypertransport speed increased performance atleast a little wonder how much a difference it'll make in gaming.

Thankswell I can tell you GTA4 is super smooth now not a glitch, bump, slowdown or stutter the system is perfect and Im OCCT stable at 3.8ghz cpu, 2.8ghz nb, 2.6ghz ht

May try for 3ghz nb but right now I cant ask for anything more.......except 3.9 or 4ghz OCCT stable

this is my new suicide

Phenom 2 940BE

CACVC AC 0850
9074212L80111

4.060ghz

1.6v

2800mhz

2600mhz

1066

2x2gb

Unganged

Asus M3A79-T Deluxe

Xigmatec 1284EE (AIR)

Windows Vista Ultimate x86