I had to run 1.52v to get it completly stable.. I am on Koolance Exos-2 load temps 46c
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I had to run 1.52v to get it completly stable.. I am on Koolance Exos-2 load temps 46c
I am running 2.6Ghz @ 1.47V on air (XP120)..
found out though that Core1 is really weak. Core2 has never failed Prime95 yet all the way up to 2.8Ghz while this is max stable for Core1 and keep decent temps..
BTW, are you guys posting the voltage set in the BIOS, or the one shown by CPU-Z?
I'm at 1.5125 in the BIOS, but only around 1.488 on CPU-Z
Mine was checked with a DMM.. The Blasted DFI undervolts Badly on mine :(Quote:
Originally Posted by Ender17
well I went for 2.7GHz and got a nice BSOD
was fine at 2.65GHz
dare I crank the voltage a bit more?
temps are still maxing around 48 C
http://valid.x86-secret.com/show_oc.php?id=28829
But it's not prime stable, but fine in Windows though.
I decided to crank my vCore upto 1.525, but I still couldn't run 2.65GHz for 5 seconds without one of the Prime 95 instances failing.
I would like to keep my vCore at a max of 1.5, so it looks highly unlikely I'll be able to get anything above 2.6GHz.
I'm back at 2.6GHz and vCore down to 1.475, Prime 95 is fine after about 5 min.
Now I just wanna see how low I can go with the vCore and still be stable at 2.6GHz.
I'd like to be able to go back to my Yate Loon fan on the CPU, since it's much quieter than this Panaflo M1A.
Disappointing reports for those wanted phasechange results.
I am stuck at 2.9ghz dual prime 95 stable @ 1.65v v-core. Chip is exceptionally hot -20c idle and +6c dual prime 95!!!!
1.7v will stabilize at higher temp which I don't want to use 24x7 anyway. Anyone want to trade this 4200+ + cash for nice clocking x2? :P I really want to see how far I can go single phase on X2 with this setup... was hoping for 3ghz dual prime95 stable but oh well -_-; Gonna have to start looking for 1/2 HP compressor that is queit and small but chances of that happening isn't any time soon... sigh.
(Due to heatload of chip, I believe typical 3-500mhz gain going from water to phase is not going to be possible until this power issue is sorted out) I gained measly 200-250mhz going from water to phase this time.
Hey guys I am back to report. Unfortunately one core better than both, sort of makes me wish I had gotten the FX now as one core can do 2.7++ on air with no problems at 1.5v, first core at 1.5v 2700 (270x10) craps out with rounding error about 12 minutes into prime, other was 7 hrs+
PWM IC worries me as it runs over 60'C when 100% CPU utilization anyone else have theirs this high in temp? DFI Ultra-D btw.
As far as ram goes I am maxing out at around 285-290 or so this is the 2x1GB Ballistix, basically my max OC is around 265x10 at 1.5v or I can run 282x9 1.4v all day/night long. Not sure which I prefer yet... probably will take higher CPU overclock since over 280 is pushing the ram quite a bit.
I guess if I had 2 perfect cores this would have been sold as a 4800+ right? lol I certainly can't be too disappointed since this is the best hoped for overclock of any CPU I've had to date. 2xFX-55? a lot of people say that but what about the fact each core is only 64-bit memory controller? that's half the FX just curious about the affect it has on performance.
Again running all on air 2x120mm + 1x92mm case fans in a Tsunami Dream case with XP-120 and 120mm fan on top of it, I do have 2x120mm 104 CFM fans compared to the 2 I have now which are like 50-75 CFM arriving tomorrow from sidewinder (nice people there). Might help my OC or just help stability we'll see.
Just wondering what the safest 24/7 voltage would be provided good air cooling. I can run 2.7+ with 1.5-1.55 depending how high I go but I was curious the general opinion of safety at these volts 24/7 instead of just benching.
Would like to have my cpu alive for a while :)
Well guys I am at 2.75 (275x10) right now on Crucial Ballistix that do up to 287 so far.
I can not seem to be stable running both cores 100% Prime95 on XP-120 btw. However I can run either core at 100% and have perfect stability. Since there really aren't much in the way of multithreaded apps / games I will be utilizing should I consider leaving at 2.75, might have to leave at 1.55v also or 1.525 possibly.
Or do you guys think I should bring it down to 2.532 ghz and run 282x9 which is my best 100% overnight stable settings, seems that when I run 3dmarks 05 the CPU score really doesn't help much at all, I guess I am still GPU limited even with a XFX 7800 GTX 490/1300
Opinions would be greatly appreciated, I could probably live with around 2.6ghz problem is the 9x-10x multi gap in between I am experiencing, would have to lower to ram speed to bump to 10x multi.
Does ram speed really affect total performance much on AMD systems?
The nf3 ultra-d undervolt by 0.2v so a minor bios tweak brings it back to stock voltages however this does limit bleeding edge o/c's.
Quote:
Originally Posted by hag6br
Hi!
I have been reading this tread from the beginning, with great interest. As it so happens I have placed an order on Komplett.no for a X2 4800+ core, but the delivery date is not confirmed as of yet.
I got a feeling that the tread startet with quite a lot of optimism regarding the expected perfomance of the X2 series, but now I read more and more about heat problems, underperforming core problems and other problems regarding OC'ing the X2's, so I wonder: Should I cancel my order for the 4800+, and perhaps go for a FX 57 core instead? (today I saw a tread regarding heat problems with the FX 57 also).
I'm looking for a mild OC with H2O cooling, no hardcore stuff. I'm not a demanding multi application user, but I can see the benefits of dual cores in the daily use of my computer. What do you think?
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AMD Athlon 64 FX 55 "Clawhammer" @ 2 730 MHz, MSI K8N Diamond SLI, Gainward GF 6800 Ultra GS, Corsair XMS 4400 cl. 2,5 2*512 MB, OCZ Powerstream 520 W, Lian Li PC75USB, Mist Tsunami single rad H2O system.
I think people are getting a mild 20-25% overclock on average. Some more, some less. My 4200 is stable at 2.6 on air. I think the 4800 is vastly overpriced as is the FX 57. I appreciate this $700 dollar chip replacing and outperforming my dual Opteron system at a fraction of the price. I think effectively overclocking the average x2 chip require water cooling and luck, some are really lucky and can run high speeds with low volts. As always it's a crap shoot.
Quote:
Originally Posted by pentium777
Memory Bandwith is nice but you should take the max OC on you cpu over it, if you have the choice between 275x10=2750 or 9x282=2538 then definetly the 2750 OC will be the better choice. Even if you have to lower it down to say 270x10 to get it prime stable your still talking about 160mhz more OC on the cpu ;)
A word of warning about Komplett, i placed an order with the for the 4400+ at the beginning of this month - at the time they said it would b in stock the following week...they kept changing thier expected date of delivery every week. And even looking at the site today, it doesn't seem as though they have any instock yet. Unless some1 has recieved a 4400+ from them i stand to be corrected, as i ended up getting mine elsewhere.Quote:
Originally Posted by Futen1
The theory of using as little vCore at whatever clock speed you are at certainly applies heavily for the X2s. My 3500+ Winchester would be quite happy running 2.6gz at 1.55v to 1.72 quite happily without serious overheating on water for example. Cranking up vCore on X2s seems to increase the heat output exponentially, >1.6vCore even on water might b asking for too much.Quote:
Originally Posted by Futen1
As i've asked many people looking at getting X2s, what do want to use it for? Gaming? Video Encoding or Content creation? If you're looking a gaming processor go for the FX 57. If you are one of those who run dozens of applications at the same time, or do a lot of content creation then i'd recommend the X2.
On water, average results seem to be around 2.6Ghz-2.7Ghz for the X2s. And i'd recommend having 2Gb of memory if you'll b doing content creation, which also seems to work pretty well if you'll b running some of the latest games.Quote:
Originally Posted by Futen1
Unless you want to hope for the fastest OC to 3ghz from an FX-57 which is 1000-1100 USD, I would do the X2 4400+ as it is the same thing as the 4800+ and I am doing 2.7ghz on air with mine.Quote:
Originally Posted by Futen1
From after you enter your information in XP SP2 setup and click network typical it takes 3-4 min to install Windows XP SP2 it is screaming fast. An excellent value at its price and performance.
The 4800+ is actually more expensive than FX 57 on Komplett.no right now, but I suspect that is due to an error on the web site.Quote:
Originally Posted by pentium777
Your core is rather good, is it not? Not all the people I have seen can do 2,7 MHz on air :)
One subject not mentioned a lot is the question of what type of RAM this dual core prefers, if any. Partly why I want to get myself a new core is that my FX 55 Clawhammer has proved a bit picky with what type of RAM to use. The Corsair XMS 4400 Twinx set I use is perhaps better suited for the improved memory controllers of the X2 series.
I've found the Ven/San/x2 line much more forgiving of any type of memory with the exception of some of my Hynix RAM. The latest DFI BIOS has also been greatly appreciated in that respect. I doubt you will have any problems with the Twinx beyond the usual tweaking one does.Quote:
Originally Posted by Futen1
That's great news! I was never able to tweak the RAM timings 100% on my current set up, I suspect caused by a combination of the memory controller on the FX 55 and BIOS issues. MSI are not so keen on providing new and better BIOS'es as the DFI crew. And yes, I had a DFI NF4 SLI DR, but it borke down and I had to RMA it. That put me off DFI for some time, and I returned to my previous mobo.Quote:
Originally Posted by Ugly n Grey
I just picked up a X2 4600 and in a DFI SLI rig it`s very happy running at 233fsb at std voltages which is the limit of the 2 gig OCZ memory kit I have. I hope to test with some better memory in a week or so.
Ive manages this so far though it appears to be the max on both cores
Nice, what memory timings are you using?
Quote:
Originally Posted by Gaspar
To my complete dismay after 4 days of testing my X2 4400+ and finding a 100% stable prime and ram tests for 24 hrs I experienced many problems last night in BF2, apparently this game does some type of stress the torture tests don't.
Problems ranged from Punkbuster error in file/memory, to disconnected from servers unexpectedly (was not my ISP I had another PC steady pinging many sites no lost packets)
Then of course there was the occasional boot to desktop. I'm having to back down my speed from the 2.7ghz that was stable 270x10 to 260x10 now with still the same 1.525v it sucks bad any opinions?
I was looking around at AMD and noticed that there are now 2 Cores for the X2's..
The site shows an E4 and an E6 core..
Wonder what they changed?
Just looked and mine is an E4 core...