Just started Overclocking Phenom II 955be

[Meteora]

Hey guys i just started getting into the overclocking scene again, currently running my AMD Phenom II 955 BE at 3.8Ghz

 

CPU VID 1.4375

NB VID 1.1000

Memory VDDQ 1.500

CPU VDDC 1.464

NB Core Voltage 1.100

CPU HT Voltage 1.200

 

I raised the Core Multiplier to x19 and the NB Multiplier to x12 i left the FSB Frequency at 200 and just bumped up the CPU Voltage.

 

I've looked at many threads with different opinions, but i decided to start my own. Do you think i should raise any other voltage right now?

 

I've been running Prime95 on Blend for 29 minutes now using AMD Overdrive to see CPU Temp and it appears its holding at 52.5 to 53C on all cores..

 

My goal is to get it to 4.0 but i cant seem to find a stable combo or a starting point to work from to get it stable at 4.0

 

Any input would be nice And sorry for posting if i missed a thread that covers this

 

Im using an Arctic MX2 Thermal and a Coolermaster V8 for cooling inside of a HAF 932 with 3 230mm fans and 2 120mm fans

Edited September 29, 2010 by Meteora

[Meteora]

Just an update, been running Prime 95 Blend for almost a full hour now, still max temp is only 52, and has yet to fail a test yet

[NearlyEpic]

Raise multiplier, test, tweak voltage if necessary, repeat.

 

I don't really know a simpler way to say it.

 

If it's stable, i don't see a reason to tweak the voltages.

Edited September 29, 2010 by NearlyEpic

[cery25]

raise multiplier to x19,5 , fsb to 203 and cpu v to 1,45 this is the max i can get from mine

[IVIYTH0S]

Before we go on is that a C3 955? If not then you're at your max clock

[Meteora]

Yeah sadly it is the C3, I lowered the CPU VID 1.4375 to 1.4.. As far as i can tell having it at 1.4375 did nothing but raise the temps. and i can run it stable at 1.4.... So yeah it appears max Overclock for this without serious cooling is 3.8 =/

 

Also the only voltage i changed at all was the CPU VID from 1.3500 stock to 1.4000

 

--- System Below --

 

AMD Phenom II 955 BE 3.2 (OC to 3.8) x19 CPU Multiplier x12 NB Multiplier raised stock CPU from 1.35 to 1.40 voltage, rest all auto/stock

MSI 790GX-G65 Crossfire Ready MB

XFX ATI Radeon HD 5870 x2

8GB Kingston HyperX DDR3-1333 9-9-9-24

WD 320GB 16MB Cache SATA II x2 Raid 0

Coolermaster HAF 932 Full Tower (x3 230mm x2 120mm)

Coolermaster V8 Cpu Cooler

Coolermaster 800W GX Series PSU +80 Amp

LED Blue Cold Cathode Tubes x2

Acer V233H 23" Widescreen x3 (Eyefinity Baby)

Windows 7 Home 64

Edited September 29, 2010 by Meteora

[IVIYTH0S]

NO NO NO NO lol

being C3 is a good thing, that means there's still hope!

what speeds are your NB and HT link runnin at??

[Drdeath]

NB 2600-2700MHz

Hypertransport 2000-2200MHz

CPU/NB voltage 1.25-1.35V

Vcore 1.45-1.55V depending on clock. 4.1Ghz will need close to 1.55V.

 

Keep memory close to stock. Enable LLC

 

You will need better cooling to get higher clocks. I got 3.8Ghz on default vcore.

Edited September 30, 2010 by Drdeath

[Meteora]

NO NO NO NO lol

being C3 is a good thing, that means there's still hope!

what speeds are your NB and HT link runnin at??

 

My HT is running at 2000, and my NB is at 2400 x12 Multiplier

Edited September 30, 2010 by Meteora

[Meteora]

NB 2600-2700MHz

Hypertransport 2000-2200MHz

CPU/NB voltage 1.25-1.35V

Vcore 1.45-1.55V depending on clock. 4.1Ghz will need close to 1.55V.

 

Keep memory close to stock. Enable LLC

 

You will need better cooling to get higher clocks. I got 3.8Ghz on default vcore.

 

Yeah last night i did some experimenting with my clock at 4.0.... ran pretty hot, i had to keep the AC on in my office just to keep it in the 55-57 range.... It ran stable for about 2 1/2 minutes on Prime95

 

CPU VID 1.4750

NB 1.3750

x20 CPU Multiplier

x14 NB Multiplier

Kept stock ram settings

 

Like you said i would need better cooling to go higher, i don't really doubt that at all. I went with the V8 because i'm kind of going with a coolermaster theme, Otherwise i probably would have used a Koolance water cooling kit, or the Corsair H50

 

The temps inside my computer are very low as it is with this much airflow, but the CPU could definitley use something more, Any suggestions?

 

Using Everest here are some temps at idle

 

Temperatures

Motherboard 24 °C (75 °F)

CPU 33 °C (91 °F)

CPU #1 / Core #1 33 °C (91 °F)

CPU #1 / Core #2 33 °C (91 °F)

CPU #1 / Core #3 33 °C (91 °F)

CPU #1 / Core #4 33 °C (91 °F)

GPU1: GPU Diode (DispIO) 34 °C (93 °F)

GPU1: GPU Diode (MemIO) 35 °C (95 °F)

GPU1: GPU Diode (Shader) 33 °C (91 °F)

GPU2: GPU Diode (DispIO) 28 °C (82 °F)

GPU2: GPU Diode (MemIO) 29 °C (84 °F)

GPU2: GPU Diode (Shader) 26 °C (79 °)

WDC WD3200AAJS-22B4A1 29 °C (84 °F)

WDC WD3200AAJS-22B4A0 29 °C (84 °F)

 

Cooling Fans

CPU 2086 RPM

System 772 RPM

Chassis 772 RPM

GPU1 2705 RPM (55%)

GPU2 1357 RPM (31%)

 

Voltage Values

CPU Core 1.42 V

+3.3 V 3.36 V

+5 V 4.97 V

+12 V 12.14 V

+3.3 V Standby 3.34 V

VBAT Battery 3.28 V

Edited September 30, 2010 by Meteora

[IVIYTH0S]

try lowering your NB multi one step

[Meteora]

Little bit of an update

 

still running it at 3.8 x19 CPU Multiplier 1.4000 , but i now havee my NB at x13 (2600) running at 1.2500 from x12 (2400) at 1.1000

 

Seems to be holding steady, kinda scared to go higher