165 OC, Am I missing something?

D

Dizzident

n00b
Joined
Mar 5, 2006
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My setup..
Opteron 165 0551 UPMW
A8N-SLi Premium
OCZ Titanium 2-3-2-5 1GBx2 Kit


My OC Setup
1.41V
HT set to 3x
3-3-3-7 Memory Timings at 2.7V
HTT is sitting at 272
Memory Divider is 183 (Set with a64 tweaker)

2448Mhz is it's max stable... without upping my voltage to 1.45V (peaks at 278mhz). It'll run stable at this but the temp peaks out at 55C compared to 51C at 1.41 (which doesn't make it worth it to goto 278).

The system will hit 2.6Ghz stable for 6 hours for core 0 at 1.41V, it takes a significant increase in voltage to stablize the second core. Is there something I'm missing that I can tweak to help increase core 1's stability? I've tried underclocking the ram to 133, it doesn't seem to make a difference on the stability front.

I was really hoping to hit 2.6Ghz =/

Any suggestions would be appreciated.
 
So it fails after 6 hours of running at 100% utilization?

Sounds fine to me, when you're gaming or whatever, I doubt you run the CPU at 100% for 6 full hours.

I Dual primed my 170 for two hours at 2.6ghz at the volts in sig (52C Max temp) and that was all it took for me lol.

Other people are a little more hardcore than myself and require 19hrs of TOTAL prime stability. I think that's just unnecessary.
 
nobi125 said:
So it fails after 6 hours of running at 100% utilization?

Sounds fine to me, when you're gaming or whatever, I doubt you run the CPU at 100% for 6 full hours.

I Dual primed my 170 for two hours at 2.6ghz at the volts in sig (52C Max temp) and that was all it took for me lol.
Click to expand...

Core 1 fails religously at the 2 hour mark at anything higher than 278 at 1.45V, though after 6 and half hours I had a single lockup at that speed but I figure it's due to the 55 degree heat..

Is it possible the mb is whats holding me back? Or do most break 278 easily? (I lowered the processor multipler and upped it 310 and it booted fine.. so I'm kind of boggled).

Note: I'm using prime95 to test the stability.
 
I would suggest another cooler? Check to make sure you got good coverage with the TIM. Hell, try reseating it. sometimes all it has to be is off by a little bit to screw you up. 55C is a bit on the high side for those chips. Just some suggestions...
 
Sounds like you could have a crappy CPU; not every 165 hits 2.6, some do in fact top out at much less than that ;) Have you tested for max RAM and FSB speeds? I'd guess your board should be good to at least 300 fsb/htt.
 
Yup you bought in to the operton bs that has been floating around and you got burned. Even though most of the idiots will say "all" you still have a 50/50 chance of actully getting such a large overclock.
 
650mhz is still a decent overclock I guess =)

Oh well, I guess I tapped out the cpu at that speed, it was still worth it.
 
What do you have the memory 1T/2T timing set at?

I know on the DFI board if you leave that setting to auto, then it will limit the OC. Also what are you're PWMIC temps at? are you activlly cooling you're memory? These are all things that i've had to do in the past to gain stability.

Also 55c is abit high, even tho it's within spec you might think about investing in a better cooler maybe that'll get you abit more. It could be anything, you're just gonna have to keep playing with it till something works.
 
Yeah, I'd try cooling and see if that helps. Even 2.5Ghz is pretty decent though...still faster than stock 4800+
 
SoCalDJ said:
What do you have the memory 1T/2T timing set at?

I know on the DFI board if you leave that setting to auto, then it will limit the OC. Also what are you're PWMIC temps at? are you activlly cooling you're memory? These are all things that i've had to do in the past to gain stability.

Also 55c is abit high, even tho it's within spec you might think about investing in a better cooler maybe that'll get you abit more. It could be anything, you're just gonna have to keep playing with it till something works.
Click to expand...

Passively cooled ram, but as I said I did a massive underclock on the ram to no difference. Timings are 1T, it's not the ram =(

That's the stock cooler and I don't think it's quite set yet with AS5 hence the slightly high temperature =/ I think I'm done with the OC'ing business ;) if it likes 2.45 it'll stay at 2.45 =) it's all good.
 
just get a new cpu cooler and up to voltage a bit more to 1.55, the stock hsf isn't that good if you want the MAX oc.
 
off the 165 at a premium (everybody knows they all overclock great!) and buy a 3800 x2 for some real overclocking. much wider range of good steppings available, too. your opteron should be free from heat related instability until it reaches 70C, according to amd.

AMD Athlon, Athlon 64, Opteron, Duron and Sempron


All Slot A CPUs (Athlon classic, Athlon Thunderbird) 70°C
Athlon Socket A up to 1 GHz, Duron up to 1.3GHz
90°C
Athlon "Thunderbird" Socket A 1.1GHz or more 95°C
Athlon MP 1.33GHz or more 95°C
Athlon XP up to 2100+
90°C
Athlon XP 2200+ and faster
85°C

Duron "Applebred" 1.4G and faster 85°C

AMD Opteron
69 or 70°C
depending
on model

Athlon 64, 64FX, Sempron
Most models 70°C; 65°C for some Socket 939 Athlon 64 models

Athlon 64 X2 (dual core)
65°C
 
Yeah, if you get a good 3800+, you'll benefit more from the extra clockspeed than the extra cache with a dual core.
 
generally speaking, with which processor (165 v 3800+) will i get a "better chance" at ocing to 2.6ghz+?

btw itll be on the
dfi ultra d
 
Honestly, I'd say the X2 right now. Didn't used to be that way, but it seems like there's been some good silicon in the X2's lately. 2.6Ghz is a little bit of a high expectation. I get right at 2.6Ghz with reasonable voltage and air cooling with my 165, but I've seen others that top out around 2.5Ghz.
 
yeah, id be using the scythe ninja btw :D

other 165s @ 2.5? havent heard that one.
 
LOL...didn't you read the OP where he was only getting 2.45Ghz :p.
 
well, that was the only one i saw ;)

are you referring to the recent steppings or just overall? Damn, I was set on the opty, but the 3800+...
 
I easily got to 2.7ghz with mine, but its like a wall. 1.5-1.55v gives me MAYBE 30mhz past 2700.
 
OP: I'd just like to mention that you should be using the BIOS to set the memory timings and dividers, not A64 Tweaker. Also, keep in mind that your memory doesn't usually do over 220MHz no matter what timings you run it at. Yours might go higher but mine won't. (I'm assuming the Titanium's use the same Infineon chips my Plats use here)

Basically your CPU is getting too hot. I don't know of many people that have much luck keeping their system stable when CPU temps get over 50C with the Opterons. Mine fails right when the temps hit 50C, and I'm running a single core CPU in a well ventilated system with a Zalman 9500 cooling the processor.
 
Okay somebody help me. I am by no means a great OCer. I will explain my system and then tell me if 3800x2 or 165 opteron is better.
Board kn8slipro currently running 3200+ OCD
1gig kingston hyperx
1 7800gt (hopefully 2 eventually)
have 500watt supply
All i really use this thing for is surfing the web and playing counterstrike source.
Looking to OC for best results for gaming.
Max i will game for is 3 hours-ish
 
You could sell your current Opteron and look on eBay for an Opteron with a stepping 0550UPMW. Those seem to be very good OCers, often in the 2.8Ghz range, (correct me if i am wrong)
 
Astral Abyss said:
OP: I'd just like to mention that you should be using the BIOS to set the memory timings and dividers, not A64 Tweaker. Also, keep in mind that your memory doesn't usually do over 220MHz no matter what timings you run it at. Yours might go higher but mine won't. (I'm assuming the Titanium's use the same Infineon chips my Plats use here)

Basically your CPU is getting too hot. I don't know of many people that have much luck keeping their system stable when CPU temps get over 50C with the Opterons. Mine fails right when the temps hit 50C, and I'm running a single core CPU in a well ventilated system with a Zalman 9500 cooling the processor.
Click to expand...

I used a64 tweaker because my bios doesn't have the 183mhz option, only 166. The memory runs fine, I did two 800 meg prime95's to test memory and they both ran for over 6 hours. I'm not sure what chips are used in the titanium, but mine seem to overclock just fine. And yes I am aware that every reboot my memory settings are going to be reset by my bios.

Like I've said though I'm happy with 2.45ghz, it still less than half the cost of a 4800+. I don't think it's worth it to invest in a better cooler for a slightly larger overclock.
 
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