sweet result mate! Have you tryed taking them to 1800Mhz at them timing!
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sweet result mate! Have you tryed taking them to 1800Mhz at them timing!
Chip came in. I'm a little upset with my M4A79T. I can't ever save BIOS settings or it'll refuse to POST until cleared, even if no settings are actually changed.
Phenom II X4 955 BE / DFI LP DK 790FXB-M3H5 TEST
http://cfile21.uf.tistory.com/image/...49EE0CB903A608
http://cfile5.uf.tistory.com/image/1...49E87A5724C89D
http://www.playwares.com/xe/files/at...3/IMG_4525.JPG
http://www.playwares.com/xe/files/at.../438/003/1.JPG
Phenom II X4 955 BE
CPU 3450MHz, NB 2760MHz / 1M PI
http://www.playwares.com/xe/files/at.../438/003/2.JPG
Phenom II X4 955 BE
CPU 3450MHz, NB 2760MHz
http://www.playwares.com/xe/files/at.../438/003/3.JPG
Phenom II X4 955 BE
CPU 3375MHz, NB 2925MHz / 1M PI
http://www.playwares.com/xe/files/at.../438/003/4.JPG
Phenom II X4 955 BE
CPU 3375MHz, NB 2925MHz
http://www.playwares.com/xe/files/at.../438/003/5.JPG
Phenom II X4 955 BE @ 4G
DDR3-1772MHz 7-7-7-21 2T
NB 2882MHz
BIOS SET 4G
http://cfile3.uf.tistory.com/image/1...49EE0C29073462
http://cfile25.uf.tistory.com/image/...49EE0C2B081266
http://cfile5.uf.tistory.com/image/1...49EE0C2C09FFEB
http://cfile2.uf.tistory.com/image/1...49EE0C2C0ADFA8
http://cfile2.uf.tistory.com/image/1...49EE0C2D0B26F0
http://cfile24.uf.tistory.com/image/...49EE0C2E0C8B8B
http://cfile22.uf.tistory.com/image/...49EE0C2F0D0F20
Awsome :up:
There we go...the WD2500JB refused to let the system work unless it was explicitly set to slave. Installing Server 2008 x64 and will have numbers soon.
Just playing with mine now.
M3a79T deluxe 0803 bios. Single 4850 gpu modded for low idle power. Water cooled.
For a quick start I used the bios settings from my 720 and trimmed back the multipliers. 3.8 looked ok in Prime as did 3.9. I could not get 4.0 to prime for more than 15 minutes so switched back to 3.9 for a while. As the 12v line was showing 11.6v I checked the plug in watt meter. For reference the 720 idles around 150w @ 3.8 1.55v, the 955 @3.9 1.55v is idling at 220w, up to 380w under prime :eek: As my Tagan psu is a 450w model and prime @ 3.9 has just failed at around 1 hour it looks like I'll have to break out the 750w Seasonic :eek::eek:
Silly power draw for 24/7 operation. If I can't get below the 180w idle mark at 3.8 then this chip will be looking for a new home :shrug:
Thanks for that chew* :)
I'll scale back to my reference 3.8, find the sweet spot then try again :yepp:
Edit:
The above reminds me of booting an old 939 chip at 3.2, the Tagan roared. Who would have thought such a small piece of silicon could handle the best part of 430 watts :D
Good going Green team. Its nice to know future AMD chips will work on AM2+ boards. My 940 is plenty for now, but when these get cheaper, I will make the jump. Good results to everyone who posted info.
It's not much so far, but it's a start:
Anyone know if ganged is better for SuperPI?
http://www.pcrpg.org/pics/overclock/...2021.46.05.png
Supposed to be but I can never get ganged to run stable on giga, unganged is better for everyday use.
What is a safe upper limit on the CPU/NB, for reference? Pretty much the same as the CPU cores?
Attempt #2:
Doing better, but still unganged. Having trouble with NB overclocking. The same question still stands for voltage, btw, if anyone knows.
http://www.pcrpg.org/pics/overclock/18.081.png
CPU/NB it was around 1.4 iirc on the previous PIIs, I think I remember gotVoltage at 1.5v, definitely worth a quick search on his user name.
The last time I enabled ACC to see what it did I discovered an extra core. No such luck this time ;) -2% All looks promising, +2% All looks promising, either appears to stabilise my cpu at 3.8 with 1.425v set in the bios - I'll investigate further. A short time playing with ACC is not helping at 3.9GHz and the slippery slope of more and more voltage looks unavoidable for the moment.
My 720 hit its sweet spot at the same frequency, something to ponder. 5:30am, time for bed.
@namegt: Can you test your NB max? Thanks :)
Voltage limit of NB/HT is the same as the CPU = 1.5v
Atleast thats AMDs "recommended" limits.
Have people tried OCing each individual core to see how far they go?
They don't all have to be at 4Ghz...
Perkam
lol
i can prime in vista 64bit for 15 min and i cannot get into xp 32bit at same settings? then i test best acc setting (rofl -6% for xp when for vista it was +6% before??), finally i enter xp, do some super pi, decide to reboot and set a little higher nb and it doesnt boot? cmos clear, afterwards acc on same setting as before no worky?
i went back to vista and to acc disabled for today xD
that rig is playing with me rather then the other way round... dammit.. try to find some good 24/7 first now ^^
Congratulations for the amazing results...i
Sorry to ask in this thread, but i have a problem to validate my results...
I tryed with many diferent clocks and times but isn t possible
http://i39.tinypic.com/2lbp54j.jpg
http://i41.tinypic.com/296n4zq.jpg
http://i43.tinypic.com/11gm6te.jpg
i can run superpi and pifast near than 6200 Mhz, and i noticed that have stability to validate...but i tryed and tryd (i give up...lol)
Another problem is...after i did try to validate at 6221 Mhz and is rejected...all the validations appear with 6221 Mhz (exemple...i did try to validate at 5500 Mhz and saved de cpuz file...but when i tryed to validate it validates (rejected) 6221 Mhz)...
Can somebody tell me what s happened?
Sorry the broken english and thanks for all
I think that this has happened before...
It's propably due to the fact that the boot speed and tha actual speed is very different, cause u propably used k10stat or AOD to reach that frequency.
I think chew has reported that, and he is more appropriate to answer.
Try booting closer to the validation u try, and do the last mhz with aod or k10stat. I think chew said once 400-500 mhz is the limit before cpuz rejects the validate. So booting at around 5.7-5.8 ghz should fix the problem. If that is possible, and if this is actually your problem.
I haven't figured out the magic either. It rejects tons of valid results from everyone. I've NEVER gotten a green submission, just yellow or red.
Particle, I have found unganged to be faster in 16M. Don't know about 1M.
It's also easier to stabilize - to get ganged stable at 860 7-6-6-16 I had to mess with drive strenghts on M4A79T Dlx.
The cpu if not stable will do this, this is my findings.......In my phase and DI validations I was being conservative with voltage and running my ram cranked.........this is why My validations failed, the IMC was under some stress and I was using minimal voltage just what I needed to pass benches........
I also notice this with people trying to validate 1 core..........fortunately for me I don't bother with 1 core validations.......so mine pass if I'm stable....
CPU-z will only accept your highest validation and one email address per account.........In my case I used 4 email adresses for review purposes......however my main email address was the one I used for 6.4 gig validation..........and unless I break 6.4g it will not accept another submission under that email address......
http://www.abload.de/thumb/benchesrmyl.jpg http://www.abload.de/thumb/3dm06ilpo.jpg http://www.abload.de/thumb/32mbencheszxp8.jpg http://www.abload.de/thumb/vantage8xcm.jpg
no text ;) xp does not work somehow and no time for cf so far..
Glad there are overclockers that can duplicate my results :)
Very odd. At 1.45V, I can't get the NB completely stable even at 2400MHz. Causes crashes and RAM errors.
Particle I Use +.250 to +.275 ( thats how gigabyte does it ) For 2600-2800 NB speeds. That appears to be the avg I need for any chip I use except the 720's they tend to have slightly weaker NB performance.
I'm going to try and isolate it out for now and see if maybe it's simply RAM. That would figure, wouldn't it? heh
Yah it will definitely vary among chips and motherboards but my guess is none of them will need more than 1.55....
From my experience its 1.475 to 1.5375v, 1.55v didn't appear necessary.
The good news however is No chip prior to the 955's that I used could pass prime No matter how cold I got my room......I think one time in the winter I had 5C ambients.........electrically the cpu's could just not get prime stable............now even at much warmer temps they can.....
BTW AOD temps are off, part of it's gigabyte, part of its an old version.......Ive taken ambient temps and aod temps and cpu was 4-5C cooler than ambients.
Looks like progress all round, 4.0 eh ? Well let's see where I'm at :rolleyes:
First, I have to say that using the 955 makes me appreciate just how smooth and easy my experience was with the 720. That poor little 3 core cripple always tried its damnedest to make my wishes come true. The 955, well, it's a bit twitchy and I'm starting to think the m3a79T deluxe is a little twitchy too.
After my hissy fit last night I got the 955 looking 3.8 stable at sensible volts by using ACC. -2%, +2%, auto it didn't matter and prime ran for 6 hours as I slept. So ACC helped, or maybe it didn't, it certainly shouldn't, but maybe it did ? Certainly the power consumption dropped a little when I enabled it.
I set out this morning with a plan to test the stability of all 48 basic ACC settings. Not a very good plan. So, I thought, if ACC is dropping the power consumption why not just boot to bios, set the values, reboot into the bios and look for the settings that give the lowest power reading ? Meh. Maybe not the best of ideas but it sure beats 48+ hours of watching prime.
Well, I have the 48 measurements here. In fact I have over 100 measurements. A very strange thing happens with my set up when ACC is enabled with one or more values not equal to 0. With various peripherals removed and ACC off or = 0,0,0,0 the measured power while at the bios cpu settings screen is 230w +/-1. Change a setting and reboot, the measured power is now around 218w +/-1. The sort of thing I was looking for, but reboot again without making changes and the reading jumps back to 230. Repeat as many times as you like, whatever non-zero values you like, the sequence is 230, 218, 230, 218 etc. Even if it is inconsequential I still find it curious.
Anyway. Much messing around later and I have changed over to my 700w Seasonic, 670w at 12v is making for a much more enjoyable experience. Watching it closely I think even at 3.8 the Tagan was nearing meltdown, 12v rail drooping and efficiency shot to hell.
After 24 hours messing around I'm now happy the 955 can at least match my darling 720. Nb doesn't like more than 2.4, even getting the fsb to 266 has been a chore. 4.0 ? I'll see what I can do, though it may be best if you don't wait up.
Yah little tip, Look at my prime screenie......NB adds heat , I removed memory and NB from the equasion......as I've tried on other cpu's.......All I did was clock the core, under clocked HT and NB a tad and undervolted NB a tad to remove some heat ;)
Really not sure if its going to be possible with NB speeds up as i didn't try.
Might be better suited on watercooling or phase to get both core clock and NB(IMC) clock both at high speeds....
Have anybody tested DDR2 ram overclocking with a Phenom II X4 940 vs 955 CPU? I mean if ram/nb overclocking is better or worse since there now also is a DDR3 controller on the cpu.
ok just to add to chews post here is a test i did with the stock 940 and the 955
i cant post links cause the drivers for the 4890's isnt approved
Remember this is 100% stock as is
http://www.myalbumbank.com/albums/us...k_Settings.JPG
Ah ha. Nice one.
I must admit this cpu is a lot more fun now I'm using a power supply that's up to the job. Apologies to AMD for all the nasty thoughts, it wasn't your fault at all. So, a bit of brute force, some chew* magic and ...
http://www.i2net.me.uk/files/Overclo.../955PI@4.2.jpg
http://www.i2net.me.uk/files/Overclo...ay/955@4.1.jpg
I'll work on subtlety later :D
Question:
Why does 3d06 show my clock @ 4.0 when it was run @ 4.1 ? I checked it twice :( I ran one previously at 4.0 but that was many crashes ago.
boot speeds ;)
Now the good news is as you increase cooling capacity there is no need to go easy on the NB........
Ok, I'm about to give up. Even with everything at stock settings and the NB just set to 2200MHz and 1.45V, it starts to cause errors. My NB hates me.
I can tell you that whatever your memory was doing before you will need to retune/tweak it particle........Memory is THE KEY to overclocking all phenom II's, the happier you can keep the IMC the higher they clock with less effort.
Remember my stepping thread?
Take a look at your cpu and see what changed ;)
last we were working on a CV memory controller revision
These chips are CY making them different even from the 720be memory controller.
You need to start from scratch, try swapping memory in dimms etc etc
I switched banks and am having trouble just POSTing. I'll continue to play with it and see what I come up with.
Ok, I've started over from scratch. With DIMMs in the alternate banks (the far set), I've been doing better. Ran six passes of threaded mode Cinebench R10 x64 without issue at 2400MHz. Thanks for the tip, charged & chew.
Something else that keeps throwing me is that often the M4A79T won't have video on startup but is otherwise running fine. Windows will boot and everything but no video. I'd been clearing CMOS, but I think pulling the power entirely has the same effect, I can boot with video again. Simply turning off the board doesn't work.
Any beta BIOSes I should know about? :)
Six runs at 2600 and boot at 2800. Testing with 2800 in a sec.
Hey there chew. Slappa from OCN here.
Very incredible work. I too, had the privilege of getting my hands on one of these early. Here is my benchmark thread (just air results) http://www.overclock.net/amd-cpus/49...enchmarks.html
However, on both my MA790FXT-UD5P gigabyte board, and my A79A-S, I cannot get 4GHz 100% stable for the life of me. It seems that the further I raise the voltage past 1.488, the more unstable it gets. It is odd.
Like you, I could hit 4GHz on stock volts (which of course isn't stable). I believe my chip has the same potential as yours has, but there must be something I'm doing wrong. I tried everything I could think of. From raising the HT Ref clock vs just multi, loosening ram, upping different voltages, using odd combinations etc.
I'm running:
955
A79A-S or MA790FXT-UD5P
DDR2 800/DDR3 1333MHz
TRUE 120 w/ 2 fans in push pull. Temps are great.
Corsair HX520W PSU
Tried in 32bit XP, 32 bit vista, 64bit win 7, no luck
If you have any tips for me, I'd really appreciate it.
Thanks, Slappa
The best for u maybe screens BIOS from *Chew (for me too ideal :D )
Thanks for that :)
I'm not worried about the actual time. I'd spent all day chasing issues that in the end came down to the psu, I just wanted to see if I could run something at 4.2.
A side note on SuperPi 1m, tweaking the 955 3.8 settings as close as I can to match my previous 720 3.8 settings the 720 puts in better times. Much to learn about this new memory controller.
what you guys think is better for performance.. 1333 cl5 or 1600 cl7??
everest is reading about the same, actually 1333 cl5 is slower in bandwidth and about the same in latency curiously... but i would think 1333 cl5 is better...
Getting there, @4.1 btw. ddr2 of course :)
http://www.i2net.me.uk/files/Overclo...b17SP1mCut.jpg
nice... i cannot boot into xp.. @ same speeds that i can prime in vista 64 and i dont get it.. someone any idea why?
probably its the hdd.. incompatibility or something...
Slappa, try dropping your NB (IMC) speed a tad and NB vid voltage, some chips just add way to much heat when you try to give it NB, Also you might want to try backing off on ddr 3 clock speeds/timings.......
I have found it necessary to increase NB not NB vid voltage to gain stability at 1600 and up ddr 3 clocks, especiallly when trying to run tight timings ( 1.28-1.30 )
XP boot is harsher and creates more heat than vista/win 7 if you can believe that.......we have noted this quite a few times when benching on LN2, XP load screen is the equivalent of like running cinebench/Wprime 1024 M, I have no explanation why but it definitely puts a strain on the CPU.
Try booting in cold, etc with the PC off for a while.
I found 1333 5-5-5 to be less strain and easier on the IMC.......in my comparsion I think it was 1 sec slower in 32m and the 1600 ram clocks had a 30mhz advantage in NB speeds.........so the 1 second could be contributed to that.....
I am having issues getting a higher NB aswell.
As soon as i raise the NB mulitplier just one step the board refuses to boot.
Even raising NB vid and stuff causes no boot, but still working on it.
Running bios version 1.2.
So far got my system memory stable very easy which i did not expect for 8 GB :D.
running mem 8GB at 7-7-7-24 all 4 slots populated.
1 sec lower in 32m is more or less nothing. whatever my ram needs > 2.0v for 1333 cl5 so no option. try 1333 cl6 now with 6gb..
i really never experience such boot problems with xp. it was always easier compared to vista 64. but perhaps you are right and the system is better on 64bit and so the harsher boot sequence comes into play.. i suppose you compared with vista 32bit?
whatever its for benches only so i do not care that much.. but nice to know..
Compared to win 7 32bit, should be same as vista.......win 7 32 burns more ln2 altogether but winx xp32 literally boils over the ln2 pot at load screen........after boot we use less LN2 in Xp....temps diff between both OS is about 2C within the same benching session, just swapping HD's....... Mind you this is with a Kingpin pot we have noticed this with, and the Kingpin pot handles loads very well........so to actually see this temp increase with that the load has to be very intense.....
It would be safe to say win vista32 and win 732 run the cpu hotter than xp32 for 24/7 usage......but cooler on bootup.....
I've noted this on air as well with a temp probe attached to side of IHS....I have temps on these down to a science now, I know what temps benches will fail at, prime will fail at and how bad temp monitoring software via aod and or bios is off ( etc its innacurate ) I tend to be very very thorough, some would even say that I'm some what anal.........
If the side of IHS is hotter than software I can imagine how warm the core temp actually is........
Here's an example of how "anal" and thorough I am...... Im sure some of you may have experienced a crash with cinebench.........sometime you will blue screen, somtimes you will just black screen and sometimes the bench will just crash ( dissapear, etc just shut down ) and windows will still be up...........the blue screen is NB vid/IMC memory related, the black screen is core clocks/cpu voltage related and the just crash/dissapear from desktop is temp related.............
probably i try with aod one time.. boot into xp at lower speeds and then push it afterwards..
Ancient chinese secret ;), seems to be something that come up with the revision of the IMC.....
Like I said i'm extremely thorough.....I test all aspects even the more obscure, less obvious and unimaginable settings that shouldn't work....
You will see an example of this in a few days as I am documenting how thorough I am just with testing 2 sticks of memory.....day 3 and still going.......
Heres page 1 of 5 so far day 1...........Keep in mind voltage is always and always will be a last resort for me.........
http://members.cox.net/hoobahans/testing.jpg
^^ thats nice..
Damn Chew been busy i see lol, check this out lol
http://www.ripping.org/database.php?cpuid=961
Hmmm somehow I managed to fit in a skateboard shred session today as well :D well Maybe not shred, first time back on a board since september when I broke my ribs skateboarding.
Just a quick update on my chip:
3.857 appears optimal but even this requires 1.4375 v for stability.
2.66 is looking to be good for NB speed, I'm working on the voltage, at 1.2875 for now. 2.394 was fine at 1.1125 v, 2.926 failed at 1.3v.
I can make 3.99 stable but I need 1.5125v to do it. A big jump. 4.0 fails at this voltage.
I'm messing with 266 ref speed due to the 3.99 testing. I'll play with lower ref speeds when/if I get around to it.
Of note perhaps, and I'll have to retest my results. At same cpu speed, memory settings, NB settings my Pi1M results do appear slower than those of the 720be :shrug:
ecat:which is your MB?
MB: m3a79t-deluxe
Hey Chew, what's the BIOS version you're using on the Gigabyte mobo?
From the screenies it looks like "T1", but the Gigabyte website only has "F1"...:confused:
The reason I'm asking is, mine with F3 is behaving stangely.
Normal v-core is listed as 0.975V and when I boot to windows the cores seem to run @ 800MHz...:confused:
Next AOD won't recognise the CPU as an AMD and won't start at all + the Gigabyte Easy Tune thingy won't start at all...
What gives?:confused:
On the ddr II version I was using the Test 1 bios.....only bios I ever received from gigabyte......I gave them the go ahead to release a few weeks after I reviewed it.......It would not be released as T1 however........It would be released as F for final ( and a number ) My guess is it was already released prior to me testing it.....As F1
On the ddr III board I used a f5d which isn't ready yet for ram clocking, I spent 3 days tweaking that ram and did not have another 3 days to spend on ram when I recieved F3L public.......all other results and LN2 results I did on F3L (public) however......
I can't leak bios's nor would you want me to.......We managed to kill an MSI and cpu on an early bios ( under extreme conditions *LN2*) ...........I managed to kill 2 hd's on a couple bios's with gigabyte right after a flash.........Never got out of bios, never made it to windows.....and almost took out a 3rd ( brand new velociraptor )
I've been using an old version of K10 stat and 2.14 AOD all along......it works so I have no reason to change.....if its not broken don't fix it..
:spam: $10.00 off code at the Egg for AMD Phenom II X4 955 Black Edition
Code: AMD4231 making it 235.00
No go with whatever BIOS I try....
Could somebody be so nice as to post the default M.I.T. values for this CPU so I can take it from there? (MIT just says default=normal, not default=x.xxV...)
Pleasepleasepleasepleaseplease...?? :help:
EDIT: I just noticed that Chew's T1 BIOS actually has the same release date as the official F3 release... :( I wonder if there is an F4 coming soon...
EDIT2: Here's the values so far. Please, correct them in case they're wrong.
CPU Clock Ratio: x16 (3200 MHz)
CPU Northbridge Freq.: x10 (2000 MHz)
CPU Freq.: 200 MHz
PCIe Clock: 100 MHz
HT Link Freq.: x10 (2000 MHz)
Memory settings skipped
DDR 2 Voltage: 1.8 V ??? (seeing that CCR VTT is 0.9V)
SB/HT Voltage: ??? (Available settings are: Normal, +0.1, +0.2, +0.3)
NB/PCIe/PLL Voltage: ??? (Available settings are: Normal, +0.1, +0.2, +0.3)
CPU PLL Voltage: 2.5V (as given by the BIOS)
DDR VTT: 0.9V (as given by the BIOS)
NB Voltage: 1.1V (as given by the BIOS)
CPU VID: 1.35V ??? (According to Chew's screenies, though CPUZ in some cases says 1.45V...?)
didn't know where else to ask this but anyone running a
0911 week 955?
Make sure when you flash you disconect power after the flash, remove battery, and jump clear cmos...........I only trust the clr cmos button for clring my settings.....on the same bios...
F3 is most likely T1 if the release dates are the same.....
Come to think of it I now remember I had the same problem......with the shipped bios........I am going to email gigabyte and have them remove a few unsafe things and get the T1 out........please be patient not sure how soon they will get back to me........
Now I'm totally puzzled...
The BIOS says 0.975V, AOD says 0.975V, but the Black Box HW monitor and OCCP say 1.35V - and it actually IS 1.35V! :confused:
Right now I'm testing stability @ 3.2GHz and the "so called" 0.975V, and so far it's looking good with the core temperature at 45 degrees.
The problem is, AOD (version 3.0) isn't displaying nearly half of the needed options, so if I do any serious overclocking, I'll have to reboot every time... :shakes:
EDIT: Seems to be stable @3.6G with "1V" (1.375V according to OCCP). Temps are 49 degrees.
Chew. Are you able to get the 790x version of the board to test? I would like someone like you to test that board and get bios updates for it.
I dunno, best bet would be sending an email to gigabyte requesting this....
I personally don't like asking for stuff........If they send it to me on there own accord fine but I rarely ask for anything.
Case in point I needed a usable with dual slot vidcards 4X PCI X slot board...I purchased it ( MSI 790FX-GD70 ) even though it really isn't in my budget.
Dang I just ordered the 790x and I am worrying about how it is going to OC my sig rig.
Emailed them. I didnt know your name so I just put chew*
If the 790x board I ordered is a huge pos then I am going to get the 790fx version of it.
Sorry for the double post.
I tend to find the boards with less gimmicks, and less onboard stuff tend to cooperate better and get better results upon release......The more "crap" ( for lack of a better word ) that is onboard means more coding and the potential for more conflicts......
Would love to see a company put out a stripped 8 layer board with really well implemented and beefy PWM's but unfortunately it's a niche market......not realistic in terms of cost versus sales.
I think RD 580 reference was one of the few that fell into that category.
Well the 790x doesnt have any gimmiks IIRC. Its just a straight forward board. Hopefully it isnt a POS.
Random observation: Virtualization with Hyper-V is excellent with the Phenom II processors. I ran Cinebench R10 both native and on a virtualized OS running on top of Hyper-V Server 2008. The scores were identical.