Opteron 150 Overclock

[DasFox]

I've been trying to overclock my Opty 150 with bad results. I've been told by many that these are suppose to be great overclockers.

The best I seem to get on air is only 2660. I thought I'd at least get 2.8 out of this thing.

I ran it this way:

FSB: 250
Multi 10.5x
Volts 1.50

How far can you really push the volts on these things?

For me I don't feel comfortable going over 1.52, but then again from other people I talked to, they didn't have to push the volts this high to get a good clock, but then again they must of had a good stepping too.

Also I put the Multi on 10, FSB 260, volts 1.48 and DRAM on DDR333 and, it wouldn't boot.

I guess I have one of the bad steppings, but I'm wondering if I keep it cool I can push the volts more?

I'm just cooling on air with Artic Silver Ceramique, and a ThermalTake Silent 939 HSF:

http://www.thermaltakeusa.com/product/cooler/retail/cl-p0200/cl-p0200.asp

But with it pushed to 2660mhz at 1.52 volts the temps where only 98F.
Can the volts really be cranked to like 1.7 as long as it keeps cool it won't hurt it?

I wonder if the Artic Silver Ceramique, and a ThermalTake Silent 939 HSF will keep it cool enough?

I'd imagine the way it has been running so far that with those volts it won't go over 115F.

Any thoughts on the higher volts?

THANKS

 

[DasFox]

Ahh bonehead me I forgot the HTT.

I now found it in my bios put it at 4x and I can feel the heard room now. I think I may make it this time.

HT is at 880mhz

I'll keep you guys posted, so far I'm at:

CPU Voltage = 1.46
DRAM Voltage = 2.6
CPU Multi = 12x
DRAM Frequency = DDR333
HTT/FSB = 220
HTT 4x
Timings = 2-3-2-5

Running 2640mhz

 

[RallyMaster]

I remember the AMD64s not being able to do half multipliers such as 10.5....I could be wrong. That Thermaltake cooler is also seriously weak for your processor. Get something like a Scythe Ninja.

 

[DasFox]

My TT is just fine thanks, I'm not a total hardware noob, LOL, I don't consider running on air at 2.7ghz at 98F bad.

Ok next report:

CPU Voltage = 1.46
DRAM Voltage = 2.6
CPU Multi = 11x
DRAM Frequency = DDR333
HTT/FSB = 247
HTT 4x
Timings = 2-3-2-5

These setting die on me.

Someone on the DFI forum told me after I run Multi 12x and hit the wall to do Multi 10x and bump the FSB as far as it will go and when it hits the wall to then drop down to Multi 10x and bump the FSB again.

What's the point of this starting with the Multi at 12x then testing then lowering it etc...?

I mean what Multi should I eventually settle on?

I was trying to figure out this method of starting with a high multi and eventually lowering it.

ALOHA

 

[DasFox]

Here's what I'm running so far:

CPU Voltage = 1.46
DRAM Voltage = 2.6
CPU Multi = 11x
DRAM Frequency = DDR333
HTT/FSB = 246
HTT 3x
Timings = 2-3-2-5

I dropped the HTT to 3x and the FSB to 246. Now I'm running at 2706mhz at 96F on the CPU

Where should I go next in trying to reach 2.8ghz in changing what settings?

ALOHA

 

[DasFox]

Hmm someone suggested this:

=========================
I always drop the multi to around 7 or 8, just to eliminate CPU overspeed from any Overclocking issues.

Then find the maximum FSB, and after that raise the multi slowly to find the Max actual Gigahert output.
=========================

Is this good? I've never heard this before going with this low of a multi.

THANKS

 

[the Chase]

You'll have to-

1. Increase memory voltage to 2.7-2.9.

2. Loosen memory timings up and bigger divider OR run the 12 multi. (I would try to stick with the 12 multi for finding max CPU speed).

3. An obvious one but do you have AMD "Cool and Quiet" turned off in the Bios?

 

[DasFox]

Yes Cool and Quiet are off.

Ok I was told this:

You only have the multi low to keep your CPU speed low while you find the max FSB. Then increase the multi it as far as your CPU will allow.


So if I keep the Multi low and push the FSB to find it's max should I leave my Ram on normal DRAM timings? Mines DDR400 and I have it on DDR333 right now.

ALOHA

 

[DasFox]

Loosen memory timings up and bigger divider.

I forgot which way do I go with that? LOL

Memory is DDR333 right now at 2.5-3-2-5

THANKS

 

[DasFox]

Ok here's the wall hit for me for the memory and fsb. I mean any higher then 310 on the FSB she won't boot so either the Ram hit the wall or FSB but I'm not sure with my limited experience.

CPU Voltage = 1.46
DRAM Voltage = 2.7
CPU Multi = 7x
DRAM Frequency = DDR333
HTT/FSB = 310
HTT 3x
Timings = 2.5-3-2-5

 

[the Chase]

Try DDR266 divider and try say 2-3-3-7 timings. Or keep the DDR333 divider with 3-3-3-7 timings.(You'll get slighty better 3Dmark/gaming perf. with the 333 divider and looser timings.)

If that 2-3-2-5 memory of yours is like my G. Skill 2-3-2-5 memory it hates the CAS setting of 2.5.

I would still try the 12 multi with no divider at all and 3-3-3-7 timings with memory volts at 2.8 to 2.9.

Also may have to give your chipset volts a liitle nudge up if you want to keep the lower multi and run past 290 or more "fsb".

Ooops- Edited the timings to 3-3-3-7 for no divider at all.

 

[DasFox]

Ok back to the drawing I board, I'm starting to get this.

Ok DRAM is lowest, DDR200 to get full FSB. I see now.

But if DDR is 200 Multi 7x HTT 3x NOW I crank the FSB till she boots no more.

NOW if I leave the FSB where it's at, it doesn't take a pro to figure that bumping the DRAM timings back up to normal are going to make it hit the wall, so how we work around this?

 

[the Chase]

Well I think your motherboard can hit plenty of FSB so it seems, but I would take advantage of that 12 multi and go 3-3-3-7 memory timings even at 2.7 volts should get you close to 250 FSB. So thats 12 x 250 for a CPU speed of 3 Ghz!! Try a max CPU voltage of 1.5 or 1.55 if your daring and work the FSB up slowly once you get up towards the 240+ mark.

 

[the Chase]

Originally posted by: DasFox
Ahh bonehead me I forgot the HTT.

I now found it in my bios put it at 4x and I can feel the heard room now. I think I may make it this time.

HT is at 880mhz

I'll keep you guys posted, so far I'm at:

CPU Voltage = 1.46
DRAM Voltage = 2.6
CPU Multi = 12x
DRAM Frequency = DDR333
HTT/FSB = 220
HTT 4x
Timings = 2-3-2-5

Running 2640mhz

HHmmm...even with these settings I would think you could push more than the 220 HTT. Maybe more CPU volts or you really may have a "dud".

But the more things you try the farther you will get. Must go play some games. Good luck.

 

[DasFox]

Ok I'm learning how to do this.

My MAX:

FSB 325
DDR400 -2-3-2-5 217MHz

Now the CPU is getting:

FSB: 226
Multi: 12
HT 4x
Volts 1.46
2.7GHZ and hitting the wall

So now I know to play within 217mhz for the Ram and I have a wall up to 325 on the FSB.

I'd like to see if I can get this thing to 2.8, so not sure if I'm hitting a wall at 2.7 on 12x multi if I'll really see any differences on 11x or 10x

THANKS

 

[DasFox]

Damm I don't know which way to take this thing now, LOL

I'm at:

FSB: 275
Multi: 10x
Volts: 1.50
DDR: 266
HT 4x
CPU: 2745mhz

But my RAM is only at 183mhz and my OC speed to shoot for is 217mhz.

THANKS

 

[DasFox]

2.75GHz

http://img405.imageshack.us/my.php?image=ssmh3.jpg

I hope I can squeeze another 50mhz out of it, LOL

 

[MadScientist]

Good for Opty's too.
Zebo's Q & D A64 OC Guide

Chase,
What core temps (idle & load) are you getting on air running your Opty 170 at 1.525V?

MS

 

[DasFox]

OK her she is again:

http://img379.imageshack.us/my.php?image=ssvf2.jpg
http://img378.imageshack.us/my.php?image=ss2qc5.jpg

Now I need to run Prime, I had it give me 1 error so I dropped the Ram Volts from 2.8 to 2.7 and changed the HT from 3x to 4x

Not sure that alone will keep me from errors.

I guess if I error again maybe a bit more CPU volts, from 1.48 to 1.50?

THANKS

 

[DasFox]

I got the idea down now after doing this 12 hours today, LOL.

These are my MAX speeds:

FSB: 320
DRAM: DDR400 - 2.5-3-2-5 (240mhz)
DRAM: DDR400 - 2-3-2-5 (217mhz)
CPU: 2.7

So I learned how to find the max fsb and ram timings now I'm done and running PRIME.

ALOHA

 

[DasFox]

Originally posted by: DasFox
I got the idea down now after doing this 12 hours today, LOL.

These are my MAX speeds:

FSB: 320
DRAM: DDR400 - 2.5-3-2-5 (240mhz)
DRAM: DDR400 - 2-3-2-5 (217mhz)
CPU: 2.7ghz

So I learned how to find the max fsb and ram timings now I'm done and running PRIME.

ALOHA

 

[DasFox]

CRAP it got another error on PRIME, oh hell I guess this damm Opty isn't going to hold down 2.7ghz

Bumped it down to 2.64

Running PRIME again.

ALOHA

 

[the Chase]

Originally posted by: MadScientist
Good for Opty's too.
Zebo's Q & D A64 OC Guide

Chase,
What core temps (idle & load) are you getting on air running your Opty 170 at 1.525V?

MS

More than I would like at 34-35 C at idle and 58-60 C on dual prime load. Don't really want to take off the IHS yet. I'm running at 2.95 GHz right now which is a lot more stabe in Orthos(dual prime) than at the 3 Ghz.

DasFox I would still try looser memory timings at 3-3-3-7 cause the memory controller on these CPU's are the things that end up limiting an OC.(of course that's less an issue at 187Mhz memory speed. But meh-something to try).

 

[DasFox]

Ok I think I got it. Prime is running only 20mins so far and two passes, no errors, but still a long way to go.


FSB: 225
Multi: 12x
Volts: 1.50
HT 4x
Dram: DDR400/2.5-3-2-5
CPU: 2.7

Idle is like 36C and Prime is at 50C

ALOHA

 

[aka1nas]

Yeah, don't worry too much on the latency of the RAM, looser timings will give pretty close performance in real-world apps. CPU clockspeed is king with K8s. Also, don't forget that those timings are just clock cycles and if you can run the RAM at higher speeds your clock cycles are shorter, thus negating some of the penalty of looser RAM timings.