Sorrento Posted January 21, 2006 Posted January 21, 2006 I think it might be time to get one of these dual core processors, choosing the multiplier is the only thing left. Whats the maximum overclock of a dual core Opteron with watercooling? I have been reading how these reach 2.75 ghz on air (250 x 11 for the 175), would the watercooled limit be 2.85 or 2.9 ghz? I did a lot of google search and couldn't find more. 11x costs a lot, 10x too but its a lot cheaper. Thanks Quote Share this post Link to post Share on other sites More sharing options...
Guest FZ1 Posted January 21, 2006 Posted January 21, 2006 It depends on the steppings. A few lucky bastards have gotten the 165's up to ~2.9 but most are topping out at 2.7. The 170's are faring a little better on average and a few have hit 3.0 and 175's are about the same as 170's. Do some looking around on several forums, there are quite a few OC posts with these. Quote Share this post Link to post Share on other sites More sharing options...
bakermancan Posted January 21, 2006 Posted January 21, 2006 there is no SET maximum clock speed that your cores can reach on any given cooling system ...each and every processor is different as well ...results will always vary between systems Just like FZ1 said...some people get lucky and get faster chips for some reason ..others get regular ones with not so much potential....like mE! Quote Share this post Link to post Share on other sites More sharing options...
Sorrento Posted January 22, 2006 Posted January 22, 2006 It depends on the steppings. A few lucky bastards have gotten the 165's up to ~2.9 but most are topping out at 2.7. The 170's are faring a little better on average and a few have hit 3.0 and 175's are about the same as 170's. Do some looking around on several forums, there are quite a few OC posts with these. Ok guys, more or less these were the answers I was expecting, and looking for... so between the 170 and 175, would there be much overclocking diference? I had my 3200+ Venice, but it was a bad overclocker (late release)... now I have my 3700+ San Diego, and it is a great overclocker... the 11x multiplier is really doing its job and I wouldn't think a 10x would let me overclock this much with conventional TCCD memory. The Opteron 170 is an 10X multi (2.0 ghz) cpu, while the Opteron 175 is an 11X multi (2.2 ghz) cpu... I am not sure if I could reach 2.9 ghz easily with a 10X multi, specially since using memory dividers (for 1 gb DDR400 modules) is quite complicated right now with 11X, I am willing to bet 11X is better than 10X with these two processors... but I am still not sure Its a great price difference between the two... I don't know, maybe a Toledo 4400+ might be equal in overclocking (is this true???????)... what do you two guys say, which one is better? Quote Share this post Link to post Share on other sites More sharing options...
t2kburl Posted January 22, 2006 Posted January 22, 2006 I have just settled on my stable OC settings for my 175 2700 = 245x11 @ 1.45v & 1:1 RAM I had some hope to do better, but its not bad. Some have equaled or bettered this with 4400s I'm sure. Also with 170s. I'm not exactly a pro at this ... I just got my 1st ever DFI board and this was my 2nd ever AMD64 build. Done loads of p4s and XPs just my 2c Quote Share this post Link to post Share on other sites More sharing options...
Sorrento Posted January 22, 2006 Posted January 22, 2006 I have just settled on my stable OC settings for my 175 2700 = 245x11 @ 1.45v & 1:1 RAM I had some hope to do better, but its not bad. Some have equaled or bettered this with 4400s I'm sure. Also with 170s. I'm not exactly a pro at this ... I just got my 1st ever DFI board and this was my 2nd ever AMD64 build. Done loads of p4s and XPs just my 2c I think you might have some room for tweaking that memory at BIOS, and maybe other things and get a little more stable overclock. Check out the OCZ's forum for a guide to the BIOS/RAM settings for your motherboard and memory. If you lower the multi to 10x, could you reach the same cpu speed? Just wondering. Quote Share this post Link to post Share on other sites More sharing options...
zeimbo Posted January 22, 2006 Posted January 22, 2006 it depends a lot on the stepping you get. the 170's and 175's tend to be better silicon than the 165 and you have a better chance of getting a decent stepping. the 0530tpmw and 0546xpmw have each gotten close to 3ghz on each core. not sure if anyone has exceeded that and i havent seen any phase change results for dual core yet. Quote Share this post Link to post Share on other sites More sharing options...
bruins01 Posted January 22, 2006 Posted January 22, 2006 Well, I have a 165, and I'm also running at 2.7 GHz, 300x9, at only 1.4 volts prime stable. If I had watercooling I would see what my chip can do for real, but so far, I'm amazed. Seriously, amazed. Quote Share this post Link to post Share on other sites More sharing options...
t2kburl Posted January 22, 2006 Posted January 22, 2006 I think you might have some room for tweaking that memory at BIOS, and maybe other things and get a little more stable overclock. Check out the OCZ's forum for a guide to the BIOS/RAM settings for your motherboard and memory. If you lower the multi to 10x, could you reach the same cpu speed? Just wondering. Do you think I might get better results after a few weeks of burn in? This machine has only been alive for 4 days (taking some nights off to cure AS5 & priming all night twice). I had it @ 275x10 for a while, but I think it failed pi. Always core 1 I see the idea though ... If I were @ 270x10 the cpu is the same but I'd be getting more out of my RAM. I'll check @ OCZ Thanks update: tried it .... errored out on memtest test #8 ... then set @ 9:10 and its right back to DDR245. would have to back off CPU so I went back. Gotta love that CMOS Reloaded feature Quote Share this post Link to post Share on other sites More sharing options...
Sorrento Posted January 23, 2006 Posted January 23, 2006 No I don't think so... the CPU Burn in process is a myth. The real burn in was made to other hardware like BH5 ram. I have the same ram and I need to run with 3:4 (150) divider at 264 mhz... I think 2.7 ghz (270 x 11) is the max you can pull out of that RAM, or maybe use a lower divider... not sure. Quote Share this post Link to post Share on other sites More sharing options...
bone450 Posted January 23, 2006 Posted January 23, 2006 I got a 165 last week, and am having trouble with it right now. I can get 9x270 1:1 at stock volts stable. I can get a max of 9x303 on a 1:2 divider with 1.6 volts. I can't get much above 280 running 1:1. On my 3000+ I was running 9x290 stable all day long, so this is kind of a disappointment. These are only preliminary results and will continue tweaking to see what I can do to get more out of it. Quote Share this post Link to post Share on other sites More sharing options...
teamxrsx Posted January 23, 2006 Posted January 23, 2006 my 165: stable at 2.7ghz w/1.475v can go a little higher with more vcore but i like where i'm at. I was able to boot into windows perfectly at 3ghz w/1.5v but was not prime stable on core 1 :-(. Maybe one day when i go phase!!...lol CJ Quote Share this post Link to post Share on other sites More sharing options...
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