Opty 165 Dynamic OC Lowest safe Vcore?

CosmoHorizon

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Feb 4, 2006
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Hi all this is my first post on the forum, any c&c welcome

Basically, i've got my new rig assembled just a few nights ago, and i did some testing to it and i got some questions. Here goes the specs.

Opty 165 CCBWE 0551VPMW @ 240 (300*8) @ 1.33V
Asus A8N32-SLI DLX Latest Bios
2x1GB Kingston DDR @ 1T 3/3/3/8

The cooling involves 1 80mm intake in the front, 1 80mm from the side panel directly into the cpu cooler and 2 73 CFM YStech 120mm fan with XP-120 (1 Exhaust and 1 CPU)

When I first set it up, it got a max load of 52 C, which is quite hot (ambient @ 24ish) and then i did some tweaking, and realised that my cpu is 12hr dual prime stable when undervolted, which impresses me quite a bit. Now, it seems that when dual prime it, the max goes to 51 (24 ambient). From what i've seen, it's a oktemperature, however, it idles at 41. So, after knowing that CnQ produces problems, I've decided to us RM Clock.

So, I would like it to run at around 30ish degrees when completely idle, yet not cause any problem. What should be my LOWEST voltage/clock?
 

CosmoHorizon

Member
Feb 4, 2006
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Oh and by the way, what are the recommended setting for RM Clock?

State 0 Multiplier X 6 @ 1.275V 1.8GHZ
State 1 Multiplier X 7 @ 1.3V 2.1GHZ
State 2 Multiplier X 8 @ 1.325V 2.4GHZ (Speed fan shows 1.34 V)

All power off settings to "never"
I would like to run download managers that does about 10% CPU Load and OS Load runnining overnight without wasting my processor's power (they don't need good CPU to run good =p)

Bascially my goal is
1. Have state 0 (0 load) to have the lowest clock/voltage
2. Have stable state for my overnight applications
3. Making sure that frequent adjustment is not going to stress any component of my system beyond their limit.

Help reuqired pros from all around =D

Thanks in advance!!
 

Doctorweir

Golden Member
Sep 20, 2000
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First of all: Welcome to Anandtech :beer:
Also being a big fan of RMClock, I give you my insights...
RMClock also uses CnQ for its purposes, but produces less issues than leaving it to Windows, as you can customize... ;)
I run only two states in RMClock, as I basicly need either power saving/idle or fullpower:
State 0: 4x / 0.900V (= real world 1.000V), 1200MHz
State 1: 9x / 1.350V (= real world 1.475V), 2700MHz
In the different profiles it's set as follows:
Performanc on demand: State 0 & 1
Power safe: Only State 0
Maximum Performance: Only State 1

Normally I run performance on demand, but I am able to switch to the other profiles for "guaranteed" idle mode for e.g. overnight or guaranteed performance for e.g. benchmarking, gaming, etc.
 

Doctorweir

Golden Member
Sep 20, 2000
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And another....just had a read on AMD's official specifications...they recommend 1.1V for minimum power state on the 165 @ 1000MHz:

Min P-State 1000 MHz
VID_VDD 1.100 V
IDD Max 44.3 A
Thermal Design Power 51.6 W

:eek: Whoops...maybe I should go higher...but fully stable though...
 

CosmoHorizon

Member
Feb 4, 2006
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Ok, by the look of it it's great! Pity i don't have a high multiplier like 11 or 10.

I occured to me that RM clock doesn't change your HHT/FSB but only the multiplier?

What I did before was using RM clock to down clock it to 1.2GHZ and 1.05 V, and I primed it for 5 hours, and it's been doing good.

CCBWE 0551VPMW is a great stepping to have =D
 

Furen

Golden Member
Oct 21, 2004
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You could always test each State for prime stability, that's what I do.

These are the states I use:

HTT 260

State 0: x5 = 1300MHz at 1.0v
State 1: x8 = 2080MHz at 1.2v
State 2: x10 = 2600MHz at 1.4v (like 1.380 or so in CPUz, speedfan)

EDIT: By the way, I only offered my settings as an example since obviously we dont have the same CPU.
 

Doctorweir

Golden Member
Sep 20, 2000
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Originally posted by: CosmoHorizon
Ok, by the look of it it's great! Pity i don't have a high multiplier like 11 or 10.

I occured to me that RM clock doesn't change your HHT/FSB but only the multiplier?

What I did before was using RM clock to down clock it to 1.2GHZ and 1.05 V, and I primed it for 5 hours, and it's been doing good.

CCBWE 0551VPMW is a great stepping to have =D

Jep, RMClock only changes Voltage and Multiplier. It does not change HTT, but memory frequency is also affected, as it is derived from the processor speed.
0551 UPMW isn't bad either... ;)