Figured i would help free your minds :yepp:Quote:
Originally Posted by Zeus
Printable View
Figured i would help free your minds :yepp:Quote:
Originally Posted by Zeus
do you suggest we should switch to a backup hd for these htt tests? I really don't want to lose all my data...Quote:
Originally Posted by chew*
Yes....i have corrupted mine few times becuse of to high htt... i wonder what board chew use.Quote:
Originally Posted by beta
looks like a ddr2 board lastviking...
chew, do you know how much the NB clock would affect htt clocking? like i noticed yours was below 1800 on those pics.... could you still reach same htt w/ 2600nb?
Well I just lost my benching HD:rofl:
Lucky I have 2 more that are always disabled.
I tried to copy chews settings a few times and that did it:p:
Ill have to reinstall now.:yepp:
The thing is this could really be dependant on the bios.
A weak bios could really limit you in this test depending on what mobo you are using.
Ive already tried every official bios made for this mobo and the highest Ive seen is 295mhz. And Ive been using this mobo for over a year its been thorugh my 940 and 2 965's the 140 and now the 125w.
Im on M3A79-T Deluxe
Anyway Ill be going for another couple tries soon I wanna at least get the 296mhz out of it.
Good luck guys:up:
Im sure this mobo is going to show its age here
It would be a wise choice.Quote:
Originally Posted by beta
Crazy as far as NB No clue and I didn't bother, I'm riding a very fine line here, no sense in pushing my luck.
ya i hear that lol....
at summerfest a few years back we got out of the petty show just in time to walk by the stage BOC was playing at and catch them play dont fear the reaper to finish up their encore. it was pretty awesome live
I see that to i´m not blind(or maybe you never know) :) , but i wonder what board it is...Quote:
Originally Posted by crazydiamond
I same unluck as you with the Asus M4A79 Deluxe + 940BE it can be my own fault also...i still not have any snow on the board.Quote:
Originally Posted by Titan7171
Wandering bee finds the honey.Quote:
Originally Posted by Lastviking
At this point it's not up for disclosure however i will say its available to the public and has been for a while and the bios is the one it came with from an "open box" purchase, etc atm no special magic here or mods.
That would be the Asus Crosshair III if im not mistaken ;)
Quote:
Originally Posted by crazydiamond
:rofl: I said no special modsQuote:
Originally Posted by neo mike
Don't worry guys the reason I have this board is to bring this issue to a few manufacturer's attention......this imho certainly needs attention as it appears most manufacturers are leaving users with locked chips high and dry.
Hopefully , MSI, ASUS and Gigabyte are watching and reading because this board is none of those just mentioned.
Guys to prevent corrupting your OS, boot into memtest 86+ first and run the first 3 or 4 tests.
If it does not error in these test you're at least not booting into Windows completely blind -- not saying it will be stable but stable enough to get to the desktop most often.
Looks like i have a memory issue getting high ht to work.
Good enough a reason to get some new ram. :)
:up: figured it out zeus :)
Quote:
Originally Posted by Zeus
I was already in windows messing with AOD when I got a hard lock /bsod and reboot, from there I couldnt get back to windows.:shakes:Quote:
Originally Posted by chew*
Even if I had done the memtest it wouldnt have helped, hopefully this info does something for the other guys.
Any help getting these tests to succeed without ruining your OS should be released now.......any other morsels you are keeping to yourself chew?:D
Hmm well, technically some HD's may fare better than others.......
Fresh install and no mobo drivers/SB at all ;)
Try not using AOD but do try motherboard bundled software ocing utility ( AOD maxxes at 399 for me as in that the physical limit of slider bar)
One way to get around a possible physical limit of a board may be to use a dedicated IDE or sata controller card but don't take that as set in stone.
All onboard devices Disabled, not only will they casue you issues but you could easily damage onboard devices.
Understanding port 80 definitions and having a port 80 card helps alot if mobo does not have one onboard :)
FYI i'm booting to OS at 420 HT.
Wow ok sounds good since I am reinstalling os tonight:up:Quote:
Originally Posted by chew*
but Im really curious now, how do these tests with the conditions needed to show these high HTT(no mobo drivers/sb) pertains to everyday settings? or the data being collected? wouldnt using settups like this skew the results where as if everyone just tried with theiir 24/7 setup it would give more useful results?:shrug:
When you said you were walking a fine line I see what you mean.:p:
I think simon is trying to see how much HIGH HT clocking increases temps versus just jacking multi and HT up a little bit ;)Quote:
Originally Posted by Titan7171
Hey chew*, you're cheating with a DDR2 board. :rofl:
I ordered some Dominator GT's, temptation proved too much for me but i had to convice the wife first. :D
I can boot at much higher bus frequency with loose timings and any other divider than 1:2 is a no go so my issues must be ram related.
Aiming for 400ht+ once the ram gets here. :)
Cool, maybe you can sell me one of your sets of GTR to me to offset the cost.Quote:
Originally Posted by Zeus
I guess I’ll call this my first attempt until I can try and figure out what else I need to change. I’ve tried two sets of memory with the timings loose (cl9) and somewhat tight (6-6-5) but the best 3d06 score was @7-7-7-18. I’ve tried with the memory, NB and HT-Link set very low (relaxed) up to what is shown it the test SS but 349 was the max it could get it to boot. I tried one time to over clock it a little more in windows using AOD but the system locked so I didn’t try it again. I didn’t try any other bios or OS and the hardware is the same as in the earlier prime test so there is probably more and maybe a lot more to be had but I’ll test those ideas another day.
http://service.futuremark.com/compare?3dm06=12612493
http://i262.photobucket.com/albums/i...10x349best.jpg
http://i262.photobucket.com/albums/i...r/DSC00972.jpg
First, your screenshots are exactly as I had divined. Yes, bios support for high HT speeds is a challenge; perhaps we will help the cause through our efforts here.
Second, many have contributed to both chapters 1 and 2, Daveburt714, crazydiamond, Titan7171, beta, charged3800z24, theoldtimer and still to come I anticipate LastViking, Zeus, equinox, beta FlanK3r and a few others. Thanks always to chew* for his counsel.
Third, as you might have anticipated, there is a destination. An End. But we have traveled this far, let us travel a bit further before all is told.
Voyage on...
I haven't forgotten your challenge. I'll be posting some results in the next 24-48 hours. I've been swamped with a pair of builds the last few days, and I'm waiting on a new set of ram sticks. :up:
just edited my previous post with 17x255htt for 4335mhz :up:
Asus M4A79 Deluxe looks like having max htt 250-260 have used about 5 bios now.. Moving htt in AMD Overdrive 3.1 works great no crashes lower than 260htt. It looks like i need a newer board to get higher htt but i think i save that money for some Christmas gifts this time instead.
I say Good luck to the anothers in this second competition instead! have fun fight well!
congratulations to others and thanks. Chew, u are crazy with your ht-link :eek: !!
http://www.riokou.co.uk/chris/epenis.jpg
Simon,Quote:
Originally Posted by 64NOMIS
I already posted a run at 290ht but since ppl here are gettin way higher ht clocks i assume you're still anticipating another run from me right? :D
I think my run is held back largely by the ram, got new ram incoming, just a little patience please.
I'd like to make a final run before we reach our destination.
Also need to do a 17x run still.
im out of town until middle of next week, may not make this part.will try when im home. going to hawaii to watch the wis. badgers play football.
I'll participate as well. I've already done 10X test runs successfully up to 345HT, but am waiting on some cold and time to rearrange and backup hard drives before pushing too hard. I don't have a seperate benching rig, so I have to at least try to tread carefully: don't want to fry or corrupt my rig. :eek:
nice equinox! my sister and her fiance just went down to Cameron Indoor to see the badgers vs duke BBall game!Quote:
Originally Posted by equinox1
OK, i did a 10x and a 17x. My RAM is not friendly so I decided to go for balanced runs geared for Memory.
10x
http://3800z24.info/Phenom/965/3ghz-3d06-300ht-10x.JPG
17x
http://3800z24.info/Phenom/965/4.2-3d06-250-17x.JPG
32bit xp charged?
Ya, I prefer 3d06 in XP. I can run win7 64bit if you'd like?Quote:
Originally Posted by crazydiamond
doesnt matter, i was just comparing cpu score to my run on 7 64 bit w/ 85mhz more cpu & 300mhz more nb still had lower score :)
here are runs in win7 64bit.. Only thing different is I went for 1800 mem vs 1333 mem on the 10x multi run.
10x
http://3800z24.info/Phenom/965/3ghz-...0x_win7-64.JPG
17x
http://3800z24.info/Phenom/965/4.2-3...0x_win7-64.JPG
I tried a few more things today using the 10 multi but I couldn’t get much more out of it. I tried a different OS (XP), shutdown unneeded devices in the bios, dropped down to one GPU and one hard drive but none of it helped. I then swapped out the OCZ memory for the Gskills and that did help a little as the system booted at 10x355=3550MHz. The one thing that surprised me was that the Gskills would now run at tighter timings on the C3 965 than when used earlier with the C2. Anyway I think I’ll move on to the 17 multi maybe tomorrow and let the 10 multi be as is.
http://service.futuremark.com/compare?3dm06=12621078
http://i262.photobucket.com/albums/i...-5-6-5-spd.jpg
http://i262.photobucket.com/albums/i...r/DSC00987.jpg
well Im kinda stuck here.........if I use the bios that supports c3 I can only do 210 from the bios but I get fully functional cpu with better performance.........but If I use the bios that doesnt support c3 I can do 270HTT but it doesnt run at optimal performance. The bios that works best with high HTT was able to run 295HTT on my C2. So something is skewed here but Im going to do a run with the older bios just for the hell of it to see how it works out...
Wasn't able to compete for 10x but that didn't stop me from trying with 17x.
http://img.photobucket.com/albums/v620/Z3us/250ht06.jpg
Unforunately i won't have the new ram before monday so if this is the end and we're reaching our final destination i have to make do with a mere 290ht.
I have a feeling there's plenty more but i cannot unleash it probably because of the ram. :( :mad: :mad:
This is my first run at the 17 multi. I may loosen some of the setting then try again tomorrow. All of my posted results (so far) are with Vista 32-bit on an Asus Crosshair III MB.
http://service.futuremark.com/compare?3dm06=12627283
http://i262.photobucket.com/albums/i...-5-webtest.jpg
http://i262.photobucket.com/albums/i...r/DSC00990.jpg
nice oldtimer, i just couldnt quite get it cold enough for 4.42...... those scores with 2x 4870x2? what cooling, regular water?
Thanks crazydiamond, it’s water but I use a small car radiator sitting outside my shop window. I have a photo posted in this thread back on page #4 post #98. It’s working ok I think I need a second pump though.
Still trying for 4ghz but I need more cold. I think I need a bigger RAD lol.
http://3800z24.info/Phenom/965/4.3-3d06-256ht.JPG
You guys with your rads outside....
Awesome results. :up:
My 4250MHz run was done in 20ºC ambient, i'm not gonna take the case outside again. Too much rain this weekend.
Can you believe this?:
http://img.photobucket.com/albums/v6...rime340ht2.jpg
But no way to run 06.
I think 3d mark 06 is to blame.
For some odd reason 3d mark 06 reset my multiplier to the default 17x. :shrug:
I found out when i was gunning for 20K only to find a score way lower than i expected.
The darn multi was gone down from 21x to 17x.
I had no idea what caused this but when i started 3d mark 06 with cpu-z opened i saw the multi go to 17x.
I can imagine it does the same at 10x multi so that will make 17x340...
Systems hangs a few seconds after starting 06. crap!
Anyone else had this?
Do you have AOD installed? Did you check the box at the end of the install that said "enable AOD Smart Profiles?" 3dmark06 has a profile in AOD that sets the CPU to default on all cores.Quote:
Originally Posted by Zeus
lol, this sounds familiar, eh charged.
@zeus, do what charged says, I had the exact same problem, for some reason AOD is set to default at that multiplier in "smart profiles"!
You, my friend, are a champ and i owe you a big beer. :toast: :)Quote:
Originally Posted by charged3800z24
Finally got it:
http://img.photobucket.com/albums/v620/Z3us/06340ht.jpg
Stupid AOD!! I did not even open that prog, it just changed the multi!
It seems this is where the board maxes, i tried 345 but it did not even boot.
Maybe the new ram will bring some improvement but i'm happy with 340 for now. :)
Great job:up: when I saw your post I was pretty sure what it was. I use AOD smart profiles daily now. I modified the predifined list with added apps and higher clocks. Works fantastic. If I had a i7 920, I would do a stock comparison with the profiles enabled. Since CnQ work fine with it. Glad you got it working.;)
Just curious, are you guys raising chipset voltages to get those uber high HTRef clocks?
I had to raise the NB (chip) +.1v to get 311ht, but I didn't add any to the SB...
I don't want to push too hard (I need this board to last a few more months :p:), but I was wondering what you guys are using for chipset voltages...
I did have to when I did my 310 HT ref with 14x multi. But never ran higher so Not sure if it would be needed.Quote:
Originally Posted by Daveburt714
OT here is my new radiator idea LOL
http://3800z24.info/images/new_install_fan1.jpg
I can reach 345 with +.1 nb, stock sb, with the 790xt-ud4p and c3. Tomorrow I'll turn a few more things off in bios, go to +.2 nb and +.1 sb, and see if I can get any higher. 350 ran initially but crashed halfway through 3dmark. I'm hoping for some cold temps Sunday night to do some 17X runs. Been too busy with xmas party tonight, put wife's winter tires on, change oil in my wrx, yada yada...Quote:
Originally Posted by Daveburt714
BTW, I was running with even higher nb and sb for a while when using my 550be, but not at high ht.
Thanks for the info man! Adding v's to the NB seemed to help me too, but I'm a little leary of going +.2 on the NB... I'm not sure how important the SB voltage would be when it comes to HTRef, but I'll be interested in your results. ;)Quote:
Originally Posted by Grinder
I would assume that will be your garage (cold air) Rad Jay...Quote:
Originally Posted by charged3800z24
Nice idea, but your gonna need a bigger pump! :D
don't show that to the water cooling section aluminum is like poison to them.
Charged3800z24 I like that rad.:D How many square inches?
Daveburt714 it may be a little high but I run the NB at 1.28 and the SB is on auto.
Dave, just put a fan over the chipsetcooler and you'll be fine i'm sure. 06 only takes about 10 minutes at most.Quote:
Originally Posted by Daveburt714
I ran mine at auto for 340ht, i also tried maxing both NB and SB voltages and then back down 2 notches. Iirc it was 1.47V NB and 1.38V SB. It didn't get me a single more MHz though. :rofl:
Quote:
Originally Posted by charged3800z24
Like demonkey666 says, don't mix alu and copper in one loop!Quote:
Originally Posted by demonkevy666
If you do some searching you will find all copper car rads, that will be ok.
I remember long ago there was a guys here on XS using a car rad from a japanese car he bough brand new for very little money.
Or you could get the Mo-ra like Titan uses. ;)
17x 250 (ambient was 20C):
http://img207.imageshack.us/img207/3726/3dmark4250.png
http://www.xtremesystems.org/forums/...91#post4085191Quote:
Originally Posted by Zeus
read what vapor said. about aluminum in that thread.
a few things things here
1. copper rads a solider together which means there its a small thermal difference there.
2. aluminum is welded with aluminum, which means it's thermals are consistent threw out it.
I do think that Rad looks quite nice.
That's a mean result at those temps. Nicely dialed in. I am looking at the peak temps and the recovery times after the CPU test and everyone is able to step back down at an amazing rate. At about 47C in the CPU test it looks like you have pushed it about as far as it will go. At about 37C/CPU test peak it looks like chaged3800z24 and others could get just about 100Mhz more. 10C/Peak worth +100MHz. Interesting. Nice DRAM settings.Quote:
Originally Posted by beta
Whatever floats your boat mate but you won't see me using alu in my loop. :nono:
The examples i've seen speak for themselves, trust me, you don't want your loop to look like that.
Beta, nice clocks mister! :up:
Beta, great run there.;)
That RAD is for my z24 project. I was wondering how it would perform on my PC lol. It would not be my permanent choice. I have another idea in mind if I get the time to finish it. Still going for the 24/7 setup. Which means it would have to perform in the summer aswell:up:.
Thanks guys. My new "benching hd" (10 years old 20gb quantum fireball) with a fresh install of xp64 helped a lot :)
PII965 C3 @4,0Ghz 1,50V / TA790GX A3+ / GoodRam 1333 CL9 2GB single / AC Auras Wave LPT-709 :) LINK / OCZ 600W / 9800GT
http://img163.imageshack.us/img163/5174/aaapt.jpg
First off, Thanks for the tips on Chipset voltages guys... :up:
I found the same thing you guys had, +.1 on the NB helped, anything more didn't offer anything and SB had no effect.
Here's my best 17x HT run (247 x 17 x 11 x 11):
http://i30.photobucket.com/albums/c3...6_Nomis17x.png
BTW: I'm back on my Crucial 1333 ram. A friend offered me $140 for those OCZ's and I needed the money anyway...
I'll buy some better stuff when I have more cash. :up:
Here is my 10X run. I managed to get to 353. Like Daveburt, I found no additional benefit from more than +.1 nb. Also like Dave, I didn't have a registered copy of 3dmark :D Hmmm, have I mentioned that my name is Dave too :)
Ambient temp is 23C. In all runs, rad fans are at ~2200.
And a 17X run @ 250. Not sure why my 3dmark score wasn't higher, as I've beaten that at lower cpu speed. Also noticed after the fact that I forgot to click the memory tab on cpuz - but it's the same timings I've been using, and a 2750 cpunb. The 10X run, on the other hand, I had it below 1800.
I should add that the memory is at 1666 7-7-7-21-28-90 1T. Glad to see it hanging in there, since I know Ripjaws aren't optimal for AMD.
This was another run "on windows" (aka the window ledge), with -3c outside air.
That's how it's done.Quote:
Originally Posted by Grinder
last desperate attempt for me
263fsb with 17 multi
http://i271.photobucket.com/albums/j...771/263fsb.jpg
Done on the 1103 bios which does not support c3 but since it gave good fsb for c2(295)......I was able to squeeze some performance out of it. This is booted from bios, AOD does not work my temps are different becuse there is no idle time I boot from the bios and start 3dm06 while windows continue to load all the crap on this (my daily OS)
Great scores guys, this has been quite the adventure so far and prolly opened alot of peoples eyes into a more detailed understanding with whats going on with their particular system:up:
PII965 C3 @3,8Ghz 1,40V / TA790GX A3+ / GoodRam 1333 CL9 2GB single / AC Auras Wave LPT-709 LINK / OCZ 600W / 9800GT
http://img189.imageshack.us/img189/9417/cccjh.jpg
That was strong Titan7171.:up: What was the idle temp? I guess I’ll have to go back to the ice bucket to try and keep up with you?:D
Thanks buddy!Quote:
Originally Posted by theoldtimer
widows said 12c but like I said this bios does not support c3 and the temps are higher than when I use a bios that does support c3. Theres a difference of about 7c between bioses I would say a supported bios would read 7-9c:)
I was up to 4.5ghz with 265fsb but 3dm06 kept crashing at the second cpu test:shakes:
26C @ load with 1.65v vcore... :slobber:
nice job Titan7171 :clap:
:shocked: That's awesome.Quote:
Originally Posted by beta
Quote:
Originally Posted by beta
thanks guys!:)Quote:
Originally Posted by TheBlueChanell
awesome 4.5 ghz :)
should have used some salt water, titan lol.
That's not a good idea, the salt will eat away the rad. Great clocks though. :up:
thanks!:)Quote:
Originally Posted by Tomasis
Quote:
Originally Posted by demonkevy666
I think demon is trying to sabotage me:DQuote:
Originally Posted by Zeus
maybe shrink wrap your rad then put it in a salt/water/ice bath?
Ive already run this cpu at 4.5ghz for 3dm06 with proper bios
http://service.futuremark.com/compare?3dm06=12546550
http://i271.photobucket.com/albums/j...3dm0623942.jpg
Im sure using a bios that doesnt support the cpu is holding me back somewhat regardless of cold.
out of curiosity i went back and looked at the original c2 thread to find that out of 10 people zues was the only one who was prime stable over 4ghz
then i looked back at this thread =) im pretty sure everyone (like 13-15ish people) got stable over 4ghz
well done AMD! a great CPU indeed!
nice Titan! Its the best here, think? I cant hit 4200MHz, its strange, because 4165 MHz its OK at 1.5V and 4200+1.55V dont help me.
I actually did the 4ghz+ prime for 1 hour in the C2 thread I sent it to simon directly I didnt post it though:(Quote:
Originally Posted by crazydiamond
http://i271.photobucket.com/albums/j...ime951hour.jpg
Thanks buddy! It took a lot to get it, I wish I had a better bios to work with maybe Id get a bit higher:shrug:Quote:
Originally Posted by FlanK3r
Keep trying man, I think maybe water will help you get what you need? Temp could still be a problem for you?
Titan: temps are not big problem for me, in burn (PRIME or LInX) with 1.52V i have max 59 C. In benchmarks under 55 C, but, maybe my problem is cooling, only AIR and not so good C3 chip-maybe average. But i faint not :).
:clap::clap::clap::clap:Quote:
Originally Posted by Titan7171
Very nice. What do you think your peak temp was on this run?
Thanks:),Quote:
Originally Posted by 64NOMIS
that was not an entry for you, that was just showing that I had run 4.5ghz it was prolly the same as below because its the same voltage setting about 26c load.
this is my entry for this thread
263fsb with 17 multi
http://i271.photobucket.com/albums/j...771/263fsb.jpg
Done on the 1103 bios which does not support c3 but since it gave good fsb for c2(295)......I was able to squeeze some performance out of it. This is booted from bios, AOD does not work my temps are different becuse there is no idle time I boot from the bios and start 3dm06 while windows continue to load all the crap on this (my daily OS)
Great scores guys, this has been quite the adventure so far and prolly opened alot of peoples eyes into a more detailed understanding with whats going on with their particular system:up:
Oringinally posted as post 364
http://www.xtremesystems.org/forums/...&postcount=364
Come to think of it, it was even done with 23ºC ambient. :DQuote:
Originally Posted by crazydiamond
I have to say everybody in this thread is trying a lot harder and using much better cooling.
Still C3 is better than C2, that's for sure when it comes to clocking the cores but i'm not sure about the CPU-NB.
The CPU-NB on my 955 C2 clocked a hell of a lot better (3GHz+) than on my 965 C3 (2.7GHz) and i know Dave's and beta's don't clock that well too.
CPU-NB clocks scale with cold so the results from the guys with ice/chilled cooling are in another league.
Maybe a good idea to show a 32M run with maxed out CPU-NB clocks for the final round Simon? ;)
To be fair Zeus I've never really cranked the v's on the IMC. I've ran it up as high a 1.325 though and still couldn't get 2800 stable.Quote:
Originally Posted by Zeus
My sweet spot seems to be ~2700 @ 1.275, anything higher than that just requires more voltage than I'm comfortable with... Clock/voltage scaling gets really bad after 2700.
Dave, i can run fully stable at 2.6 CPU-NB with 1.175V but i can't get 2.8CPU-NB stable, not even with 1.35V+
Just found a note on my old 955 C2, 3000MHz CPU-NB 1.32V. Can't remember how stable that was but i have a screen somewhere doing 1M at 3048MHz.
people may have tried a little harder overall in this thread, but even the first few posts when people just got their chips in, pretty much everyone could hit 4.0 on normal ambients without much problems..
and my c3 NB isnt very strong either, does 2.6ghz w/ 1.25v stable (maybe less ill have to test further), but i dont think i can get it stable @ 2.8 on air even w/ 1.35v+
Quote:
Originally Posted by crazydiamond
u have right, with air cooling and normal ambients i can hit 4034 mHz stable (my chip is not so good). With NB i have a little problem-2600-2700 is very easy but 2800 stabile is hardcore :). And for benchmarks i cant hit 3000MHz (only 2960MHz in superpi :) ). Think, very good work AMD (from 3.6GHz X4 940 stable up 4.1GHz x4 965 C3!), hope, Thuban will simillary for overclocking:up:
I'm one of the few who couldn't hit 4.0 on room temp air. Of course, it was a different story when I let it taste cold air, and I have a decent nb as well (2.8@1.35 at room temp). I never did get around to trying higher, since voltage seems to be going up exponentially, but perhaps I'll give that a go tonight (again at room temp).Quote:
Originally Posted by crazydiamond
I have to say, I like the idea of putting the rad outside or in the window, rather than lifting the whole case up there. It would still have to be movable though, since it gets too cold to leave it out there.
Nice job everyone! :up:
my first run for the second half of this thread was with 3000nb
http://i271.photobucket.com/albums/j...1/17multi1.jpg
Titan7171, that is nice but that's not a fair comparisation to normal cooled cpu's. The CPU-NB scales with cold. How high can you clock it with just a radiator and normal ambient temps?
I don't want to take anything away from you as you've done great in this thread but i'm trying to figure out how good the CPU-NB of the C3 really is.
I'm inclined to think on average it's slightly worse than C2 revision.
I think, Chews C3 was with normal ambient and 3000MHZ NB. Grinder, i believe you, u can hit 4GHz stable, but must jump at voltage more. I had all easy up 3970MHz and than began hard work with voltage :), every 20MHz up i must jump up voltage one step:) ...And finaly, 4030MHz with 1.52V stable :)
1.55v wasn't enough for me to hit 4ghz at room temp, but I suppose I can try a little more. The issue will be temp, once I try for high nb to go along with it. Maybe if my waterblock was more efficient (it's for a socket a!) and if I didn't have the gpu in the loop as well.Quote:
Originally Posted by FlanK3r
Oh Im sorry I didnt know you guys were talking about normal cooledQuote:
Originally Posted by Zeus
Anyway here it is with ambiant.....
http://i271.photobucket.com/albums/j...771/3000nb.jpg
1.55 nbvid :eek:
what is cpu-nb & nbvid really?
i think you would have better luck getting stable @ 4ghz with <1.55v ... and even ~1.5v or less would probably be best bet. w/ everything default except 20x multi & 1.5v core, how long before it fails prime? how are the temps at load?Quote:
Originally Posted by Grinder
grinder: ah srry, i thought, u have Aircooling C3. What is your chip? 0941/0942 ???
Nice one Titan7171 but 1.55V is pushing it for sure. Still at 3GHz a nice result but i don't think it was Prime blend stable, was it?
Thanks! :) I dont think its pushing it, if it was it wouldnt do it on ambiant water...
Also nobody ran prime for this part of the test...
crazydiamond:
I started low and worked my way up, changing multi then nudging voltage to cpu if it failed. Stock settings for nb and ram, trying for .5 hr prime95 stable using ambient air.
3.7 ghz was the best I could do @ 1.4v
3.8 ghz @ 1.425
3.9 ghz @ 1.4875
4.0 ghz @ 1.55 failed (ran 10 min p95 blend iirc)
3.969 @ 1.565 passed. In cpuz it displayed 1.552v, so I'm getting a little droop sometimes. 52.5c core towards the end of this run.
With cold air, I've done a bit better. 4118 .5 hour prime stable (4108 with 2750nb and 777 1666 ddr3), and 4250 in 3dmark06.
I've been using 3.875 @ 1.5 (250 ht, 2750 nb @ 1.35, tight c7 @ 1666) day to day, ambient room temp.
Although my c3 isn't quite as good as most of you guys, I'll still see a better ROI from a better graphics card, rather buying another one. Besides, I still have a 550be sitting on my desk :)
EDIT
Just tried 20x200, 1.5, everything stock. BSOD and reboot 21 seconds after starting blend. Ambient 17c (haven't started the woodstove yet). It is undervolting a little, 1.488 I think.
FlanK3r:
0942FPMW 965BE C3, with the water setup in my sig. Same stepping Lastviking had.
Lastviking:
What was your best at room temp with all else stock? If you ever closed that window :)