Help me push my Opty to 3GHz?

Duplicity · 01-05-2006, 09:48 PM

My Opteron 148 is at 2915MHz and 3DMark05, 12 hours Prime95, and SuperPi stable at 1.450v. Idle temps are 25-28C and under load, 35C max. My RAM (Mushkin eXtreme Performance DDR500) is running at 208MHz on a 333MHz Memclock divider with the timings 3-4-4-8 I believe. So I still have plenty of voltage room, my RAM isn't holding me back, and my temperatures are awesome. At cpu frequency 273 (3003MHz) I can pass 3DMark05 and SuperPi, but I cannot seem to pass Prime95. I have raised my voltages to everything up to 1.50v, but still, no Prime95 pass. I could go to 1.55v, but would that make any difference since I am stable at 2915MHz with only 1.450v? Basically what I'm asking is if I've reached this CPU's max or if there is anything else to do?

003 · 01-05-2006, 09:55 PM

You can go up to 1.6v. BTW those arn't your real temps (unless you are on water). The optys don't report the temps correctly. No matter what speed and voltage I use, I always have the exact same temps for mine.

P.P. Mguire · 01-05-2006, 10:21 PM

On the Optys you reach a wall on it at one point and then you have to give a **** of alot of voltage to get passed it to OC it more. 2.9 is where i stopped but i prolly could have gone further. GL w/ that.

Duplicity · 01-05-2006, 10:34 PM

003, I have used several different temperature monitoring programs, all with the same result. Why don't the Opty's report the temps correctly? I'll try bumping the voltage to 1.6v.

003 · 01-05-2006, 10:41 PM

I don't know why, but they just dont. I don't think the motherboards we are using are really made for opterons. Before you try 1.6v, try 1.525 and 1.55. I managed to get my 146 to boot at 3GHz with 1.65v, but then the PC froze on the desktop, and it didn't boot at all with 1.68v so I think I've hit my wall. 2.9GHz at 1.6v. Not bad. I still have the 146 from NCIX on the way, I will see how good that does. I will sell the one I don't want, and if it ends up being the one I am using now, it should sell pretty quick due to the fact that it does 2.9GHz on air

Disillusion · 01-05-2006, 11:07 PM

I'm also thinking that the temp is reading incorrectly. No way you're running 2.9 GHz and only 35° under a load on stock air. At least, I think you said it was stock a while back.

gaara · 01-05-2006, 11:27 PM

You've pretty much hit the wall...you aren't gonna see too much difference between that 85MHz and the excessive voltage you're pumping through to reach 3GHz really isn't worth it

Opterons don't like a lot of voltage...they go far on stock vcore and a bit further with a bit more (<1.5vcore) and then they pretty well stop climbing very high after that...1.55vcore would probably be best

Duplicity · 01-06-2006, 08:04 AM

Well its just being able to say you got 3GHz that's appealing

. First though, is there a good overclocking utility that allows you to overclock outside your bios (to let me try 1.6v because my mobo only goes to 1.55v)?

003 · 01-06-2006, 08:22 AM

You need to adjust the CPU VID special control, set the voltage to 1.425v, and the special control to 113%. That should give you 1.6. But before you try that, I really suggest you try 1.525 and 1.55v, because it's always best to use the lowest voltage as you can.

Duplicity · 01-06-2006, 08:28 AM

Already tried em

. Thanks.

01-05-2006, 09:48 PM	#1 (permalink)
Duplicity True Techie Join Date: Oct 2005 Posts: 114	Help me push my Opty to 3GHz? My Opteron 148 is at 2915MHz and 3DMark05, 12 hours Prime95, and SuperPi stable at 1.450v. Idle temps are 25-28C and under load, 35C max. My RAM (Mushkin eXtreme Performance DDR500) is running at 208MHz on a 333MHz Memclock divider with the timings 3-4-4-8 I believe. So I still have plenty of voltage room, my RAM isn't holding me back, and my temperatures are awesome. At cpu frequency 273 (3003MHz) I can pass 3DMark05 and SuperPi, but I cannot seem to pass Prime95. I have raised my voltages to everything up to 1.50v, but still, no Prime95 pass. I could go to 1.55v, but would that make any difference since I am stable at 2915MHz with only 1.450v? Basically what I'm asking is if I've reached this CPU's max or if there is anything else to do? __________________ DFI Lanarty Ultra-D Opteron 165 @ 2.5, 1.325v 1x1GB Mushkin XP4000 @ 250, 3-4-3-8 (another gig on the way) Sapphire X1900XT @ 700/800 (she\'ll do better, but I need to replace the stock cooler) WD 1600JB 160GB Antec SP 500W

01-05-2006, 09:55 PM	#2 (permalink)
003 Wizard Techie Join Date: May 2005 Posts: 3,843	You can go up to 1.6v. BTW those arn't your real temps (unless you are on water). The optys don't report the temps correctly. No matter what speed and voltage I use, I always have the exact same temps for mine. __________________ so, umm, err yeah

01-05-2006, 10:34 PM	#4 (permalink)
Duplicity True Techie Join Date: Oct 2005 Posts: 114	003, I have used several different temperature monitoring programs, all with the same result. Why don't the Opty's report the temps correctly? I'll try bumping the voltage to 1.6v. __________________ DFI Lanarty Ultra-D Opteron 165 @ 2.5, 1.325v 1x1GB Mushkin XP4000 @ 250, 3-4-3-8 (another gig on the way) Sapphire X1900XT @ 700/800 (she\'ll do better, but I need to replace the stock cooler) WD 1600JB 160GB Antec SP 500W

01-05-2006, 10:41 PM	#5 (permalink)
003 Wizard Techie Join Date: May 2005 Posts: 3,843	I don't know why, but they just dont. I don't think the motherboards we are using are really made for opterons. Before you try 1.6v, try 1.525 and 1.55. I managed to get my 146 to boot at 3GHz with 1.65v, but then the PC froze on the desktop, and it didn't boot at all with 1.68v so I think I've hit my wall. 2.9GHz at 1.6v. Not bad. I still have the 146 from NCIX on the way, I will see how good that does. I will sell the one I don't want, and if it ends up being the one I am using now, it should sell pretty quick due to the fact that it does 2.9GHz on air __________________ so, umm, err yeah

01-05-2006, 11:07 PM	#6 (permalink)
Disillusion \m/ Metalhead \m/ Join Date: Nov 2005 Posts: 801	I'm also thinking that the temp is reading incorrectly. No way you're running 2.9 GHz and only 35° under a load on stock air. At least, I think you said it was stock a while back. __________________ CPU: Intel Q6600 B3 @ 3.0 GHz Cooler: Tuniq Tower 120 Mobo: Gigabyte GA-P35-DS3L RAM: G.Skill 4 GB DDR2 800 GPU: EVGA 8800GT Superclocked 512 MB HDD: 2 x Seagate Barracuda 160 GB PSU: OCZ StealthXStream 600W Case: Cooler Master Centurion 5

01-05-2006, 10:21 PM	#3 (permalink)
P.P. Mguire Banned Join Date: Dec 2004 Posts: 4,546	On the Optys you reach a wall on it at one point and then you have to give a **** of alot of voltage to get passed it to OC it more. 2.9 is where i stopped but i prolly could have gone further. GL w/ that.

01-05-2006, 11:27 PM	#7 (permalink)
gaara Wizard Techie Join Date: Dec 2004 Location: Canada Posts: 3,835	You've pretty much hit the wall...you aren't gonna see too much difference between that 85MHz and the excessive voltage you're pumping through to reach 3GHz really isn't worth it Opterons don't like a lot of voltage...they go far on stock vcore and a bit further with a bit more (<1.5vcore) and then they pretty well stop climbing very high after that...1.55vcore would probably be best __________________ Intel C2D E6320 / AMD Athlon X2 3800+ Gigabyte 965P DS3 / DFI nF4 Ultra-D 2GB OCZ Gold PC2-6400 / 2GB OCZ Gold PC4000 eVGA 8800GTS 320MB / eVGA 6800GS 256MB 150GB Raptor / 74GB Raptor 2x500GB / 320GB OCZ GameXStreme 850w / OCZ StealthXStream 600w

01-06-2006, 08:04 AM	#8 (permalink)
Duplicity True Techie Join Date: Oct 2005 Posts: 114	Well its just being able to say you got 3GHz that's appealing . First though, is there a good overclocking utility that allows you to overclock outside your bios (to let me try 1.6v because my mobo only goes to 1.55v)? __________________ DFI Lanarty Ultra-D Opteron 165 @ 2.5, 1.325v 1x1GB Mushkin XP4000 @ 250, 3-4-3-8 (another gig on the way) Sapphire X1900XT @ 700/800 (she\'ll do better, but I need to replace the stock cooler) WD 1600JB 160GB Antec SP 500W

01-06-2006, 08:22 AM	#9 (permalink)
003 Wizard Techie Join Date: May 2005 Posts: 3,843	You need to adjust the CPU VID special control, set the voltage to 1.425v, and the special control to 113%. That should give you 1.6. But before you try that, I really suggest you try 1.525 and 1.55v, because it's always best to use the lowest voltage as you can. __________________ so, umm, err yeah

01-06-2006, 08:28 AM	#10 (permalink)
Duplicity True Techie Join Date: Oct 2005 Posts: 114	Already tried em . Thanks. __________________ DFI Lanarty Ultra-D Opteron 165 @ 2.5, 1.325v 1x1GB Mushkin XP4000 @ 250, 3-4-3-8 (another gig on the way) Sapphire X1900XT @ 700/800 (she\'ll do better, but I need to replace the stock cooler) WD 1600JB 160GB Antec SP 500W

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