The Official Dual Core Opteron Overclocking Thread

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11-25-2005, 05:20 PM
edma2

I think I need to understand more of the relationships between clockspeed, voltage, and temps

HTT is limited by voltage...
voltage is limited by temperatures...

am I right?

I am wondering if the max stable HTT at a given voltage (lets say stock) is affected by temperatures.

For instance, most 0530s go to 2.7ghz at least on STOCK voltages with normal temps.
My 0530 only goes up to 2.5ghz on stock voltages, but I have higher temperatures.

Is temperature limiting the maximum clockspeed?
11-25-2005, 06:58 PM
dinos22

in short yes

Quote:

Originally Posted by edma2

I think I need to understand more of the relationships between clockspeed, voltage, and temps

HTT is limited by voltage...
voltage is limited by temperatures...

am I right?

I am wondering if the max stable HTT at a given voltage (lets say stock) is affected by temperatures.

For instance, most 0530s go to 2.7ghz at least on STOCK voltages with normal temps.
My 0530 only goes up to 2.5ghz on stock voltages, but I have higher temperatures.

Is temperature limiting the maximum clockspeed?
11-25-2005, 07:08 PM
edma2

Ok.

I was worried that I got a bad 0530... the possibility is still there, but I'm not as worried anymore.

Could someone explain why? In all the OCing guides I've read, no direct relationship is explained between temperature and clockspeed.
11-25-2005, 07:41 PM
dinos22

study this guide carefully and also compare your results to other users..........

http://i4memory.com/showthread.php?t=327
11-25-2005, 09:07 PM
Charloz24

Ummm strange... 2500mhz on stock voltage dual prime stable till 4+hr, but unable to do dual super pi 32M ....
11-26-2005, 12:51 AM
Zeus...

got a 'Hot' one here (thats hot running - RichUK has same core and same problem on MSI Neo2 Plat)

Relaxed the mem timings and set the mem to 166. Vcore 1.42 CPUx10 failed to boot to windows at 2750MHz but loaded at 2600MHz one core failed prime after 3.5 hours and temps where hitting 42C - Not room temp ( PC case is in a cuboard which is externally vented via two 100mm tubes and fans was about 5c last night when testing)

the CPU was running cooler in my MSI neo2 but have two gf7800 in there atm so more heat and the artic coolers havnt arrived yet

Going to check the HS/CPU interface as this was the first time I used a rice grain size off AS5

Also have the XP90 over the cooling fins off the heatpipe so will turn it 180degrees as see if I get better airflow/cooling will help

But no impress at all with CPU :( but havnt many here in the UK -might sell it all the same
11-26-2005, 05:23 AM
ION84

Quote:

Originally Posted by QettoE

Yeah 1T with four sticks of identical modules. It's the board and nothing else since I had the rest of the parts on my Ultra-D and it didn't post with the annoying long beeps.

But I don't think that ITE is now showing the right temps. I'm burning in with 1.450v and it shows 28c idle at stock speed and my probe shows 34c. Ultra-D showed identical temps on probe and ITE both.

Would like to try some different sticks to see if it can still do 1T? If this board can do 1T with any 4 sticks then this is my board!
11-26-2005, 06:07 AM
ixtapalapaquetl

Well, I've been trying for over a week to get my Expert to play well with my G.Skills using my 175. Tried five different BIOS's and literally every combination of Driving Strength/Data Strength/MAL/Read Preamble. For the life of me, I couldn't find a combination that would let me run CAS 2.5 at 1T stably. My longest prime run was 59 minutes, always failing large FFT's. The system just felt unstable. I knew it was memory related but couldn't make the necessary adjustments.

So last night I said to hell with it and switched to 2T. All my problems were immediately solved! Running like a champ now. Obviously, this is not the ideal solution, but until I can figure out where I have been going wrong, 2T is where I be. All shots below at data/drive strength 7/1 (the only combination I had luck with).

http://img492.imageshack.us/img492/5484/30501m7gg.png

Relaxed timings for prime run:
http://img467.imageshack.us/img467/138/2970a647is.png

http://img481.imageshack.us/img481/791/2970prime2rp.png

So my final verdict on the Expert: it's a keeper. I have been able to match my max overclocks with both my 148 and 175 on my Ultra-D. More importantly, the Ultra-D/175 combo had dangerously inaccurate voltage reporting problems (.11v over CPUZ under load). The Expert is much more accurate - the above prime shot reads 1.591v with a DMM under load and 1.579v idle. Once I get my memory sorted out at 1T, this system will be a beast.
11-26-2005, 08:46 AM
QettoE

Quote:

Originally Posted by ixtapalapaquetl

Well, I've been trying for over a week to get my Expert to play well with my G.Skills using my 175. Tried five different BIOS's and literally every combination of Driving Strength/Data Strength/MAL/Read Preamble. For the life of me, I couldn't find a combination that would let me run CAS 2.5 at 1T stably. My longest prime run was 59 minutes, always failing large FFT's. The system just felt unstable. I knew it was memory related but couldn't make the necessary adjustments.

So last night I said to hell with it and switched to 2T. All my problems were immediately solved! Running like a champ now. Obviously, this is not the ideal solution, but until I can figure out where I have been going wrong, 2T is where I be. All shots below at data/drive strength 7/1 (the only combination I had luck with).

So my final verdict on the Expert: it's a keeper. I have been able to match my max overclocks with both my 148 and 175 on my Ultra-D. More importantly, the Ultra-D/175 combo had dangerously inaccurate voltage reporting problems (.11v over CPUZ under load). The Expert is much more accurate - the above prime shot reads 1.591v with a DMM under load and 1.579v idle. Once I get my memory sorted out at 1T, this system will be a beast.

I have the same issue. At 2T I could run 270x10 @ 1.5-2-2-5 and now I can't go over 235x10 2-2-2-5. I'm not sure which one is worth it yet, though. Giving up CAS 1.5 or 1T...
11-26-2005, 08:52 AM
Haltech

:stick: You do realize you cant do 1T with 4 X 512 meg sticks, correct AND AMD's dont use CAS 1.5...?
11-26-2005, 08:55 AM
QettoE

Quote:

Originally Posted by Haltech

:stick: You guys do realize you cant do 1T with 4 X 512 meg sticks, correct?

Why would you say that? We are running at 1T... do you mean that the system will run at 2T even though BIOS is set to 1T?
11-26-2005, 08:58 AM
ixtapalapaquetl

Quote:

Originally Posted by QettoE

I have the same issue. At 2T I could run 270x10 @ 1.5-2-2-5 and now I can't go over 235x10 2-2-2-5. I'm not sure which one is worth it yet, though. Giving up CAS 1.5 or 1T...

Just finished up all my benches. Memory bandwidth obviously take a big hit, but everything else is better than before:

http://img466.imageshack.us/img466/8...70ocdb14ch.png

http://img373.imageshack.us/img373/9...70ocdb24ix.png

http://img354.imageshack.us/img354/1...70ocdb33cb.png

http://img466.imageshack.us/img466/1...70ocdb40dy.png

Further, my system "feels" A LOT more stable now. But let me know if you get 1T sorted out!
11-26-2005, 09:19 AM
QettoE

I can't go past 239 at 1T even with a divider... Pretty weird and it starting to piss me off. Also this 0530TPMW does't do as good as my 0534SPMW (170). Maybe it needs to burn it longer (popped it in yesterday). I was able to dual prime it for six hours at 200x10-2-2-2-5-1T. I'll dual prime it overnight 239x10-1T :(.
11-26-2005, 12:37 PM
QettoE

Quote:

Originally Posted by ixtapalapaquetl

Further, my system "feels" A LOT more stable now. But let me know if you get 1T sorted out!

Getting a little farther than before FYI. I can get the system to boot fine 250x10 2-2-2-5-1T@stock 1.300v/3.33v with no memory divider. SP2004 fails on core 0 in less than a minute but core 1 keeps going (small and large FFT). SP runs a lot longer with 2-3-2-5-1T ATM... Temp report still bothers me. ITE shows 27c and my naked probe on the side of IHS 33.7c.
11-26-2005, 02:06 PM
biohead

Quote:

Originally Posted by QettoE

Getting a little farther than before FYI. I can get the system to boot fine 250x10 2-2-2-5-1T@stock 1.300v/3.33v with no memory divider. SP2004 fails on core 0 in less than a minute but core 1 keeps going (small and large FFT). SP runs a lot longer with 2-3-2-5-1T ATM... Temp report still bothers me. ITE shows 27c and my naked probe on the side of IHS 33.7c.

remember when you use high vdimm you have to up vcore aswell! 1,3v versus 3,33v.. risky.
11-26-2005, 02:11 PM
QettoE

Quote:

Originally Posted by biohead

remember when you use high vdimm you have to up vcore aswell! 1,3v versus 3,33v.. risky.

Ooops... I was going to see how well it does with low voltage and totally forgot about that. Thanks for reminding :).
11-27-2005, 08:44 PM
jc2mm2

Ei guys, Im planning to buy an Opty 170 but its a 0544, anybody tried this one? Cuz Im going to oc it thru air cooling only. Im ordering this Opty from Japan since, not one store here in the Philippines has any Opty 939... sheesh...
11-27-2005, 08:50 PM
eva2000

Quote:

Originally Posted by jc2mm2

Ei guys, Im planning to buy an Opty 170 but its a 0544, anybody tried this one? Cuz Im going to oc it thru air cooling only. Im ordering this Opty from Japan since, not one store here in the Philippines has any Opty 939... sheesh...

coughs see sig ;)
11-28-2005, 05:14 AM
jc2mm2

wow :D Is that h20 cooling or air?:D will it run @ 2.6ghz w/ only air cooling?:D Since my rig runs 24/7 :D Having a h20 kit w/ a 24/7 rig is quite scary :D
11-28-2005, 09:18 AM
Ic3man

Hit my first 'wall' with the opty 165, hope you guys can help.

Managed to prime for 10 hours @ 285 FSB but as soon as I go higher (286fsb) I am getting this error within the first few seconds in Prime95:

http://img.photobucket.com/albums/v6...pusettings.jpg

Havn't messed with the memory yet as the board seems to do that auto...183.9mhz???

Apart from the vcore and FSB everyting else is stock.

Temps are 39c idle / 47c load (w/cooled).

Don't know what to try next...suggestions please?
11-28-2005, 10:00 AM
Zeus...

Quote:

Originally Posted by Ic3man

Don't know what to try next...suggestions please?

CPU Burn here

well thats what I am trying
11-28-2005, 11:09 AM
Concorde Rules

Well I've got a pants X2 3800+ Toledo, Im putting 1.613V BIOS setting (1.425Vx113%) at 252x10, 180 divider.. I need one of these Opterons :(

So is 1.613V, Under 45C load, 24/7, is this safe?

Cheers Conc
11-28-2005, 11:19 AM
Ic3man

Quote:

Originally Posted by Zeus...

CPU Burn here

well thats what I am trying

Thx for that. Should the Dos screen stay blank, or does it identify your cpu? Checked in taskmanager and cpu burn shows a 50% load so it is working yet the screen stays blank, is this right?
11-28-2005, 11:41 AM
phadeout

Burning in my 0536xpmw, the dos box stays blank for me... Will post tonight on results.
11-28-2005, 12:02 PM
Zeus...

Quote:

Originally Posted by Ic3man

Thx for that. Should the Dos screen stay blank, or does it identify your cpu? Checked in taskmanager and cpu burn shows a 50% load so it is working yet the screen stays blank, is this right?

make two copies off burn in differnt dir. then make shortcuts Burn 1 and two then run two off them - well thats what I did

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