:shocked:Quote:
Originally Posted by SteveRo
That is nuts Steve, you must try to catch Eva!
I wish we could see the trial-blocked values. :p:
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:shocked:Quote:
Originally Posted by SteveRo
That is nuts Steve, you must try to catch Eva!
I wish we could see the trial-blocked values. :p:
So, heres a kicker...
The last couple days 24 hours these have been my WCG stable settings on all 8 "cores" : 21x175 (3.67ghz) @ 1.23v idle vcore, 1.335 QPI/VTT, Uncore @ 17x175 for clock of 2975mhz.
If I upped my BCLK one more mhz, my syste on both WCG and Linx/Prime blend would BSOD to the "an uncorrectable hardware error has occurred"
Since those stable settings, I decided to play with my uncore clock, I put it at a multi of 18x to give it a clock of 3150mhz. While at the same time I actually dropped QPI/VTT to 1.25v
All other settings listed above remain the same.
Its been 24hrs of WCG and no crash yet!!!
So, what do you all think? Uncore / memcontroller isnt my processors weakness or is it somehow? Whats preventing me to do 176mhz BCLK and higher with HT enabled. With HT off I can reach 178 BCLK stable...
Think its simply my 1.23v on vcore? I will be testing this sometime over the weekend, because I will be gettin my mugen 2 heatsink and that will allow me to comfortably raise my vcore higher.
So thats a theory I have ... what do you all think is my limit here?
GenTarkin your main limiter is probably heat on the stock cooler if that's what you are still using until your Mugen arrives.
Yes I am =) lol, thought it was concluded these things really didnt care about heat under 90C or something. My max temps were around 83-85C...still too hot?Quote:
Originally Posted by JWMc
eva has huge experience and knowledge gap over me.Quote:
Originally Posted by JWMc
I am a huge nubi when it comes to memory oc.
I seem to be having some success with max oc ht off and 2k memory (1 hr prime @ 4.43 ht off with mem at 2k, timings: 9-9-9).
Not so good with ht on - why is ht on always so much harder?
Best stable ht on (if you can call 1 hour prime stable) is 4.3 ht on with mem at 1720, timings 7-8-8 - not so good for 2k memory. :shakes:
Hmm, no that's not too hot. You are right: that is concluded. It seemed like 93-95C was just about too hot when I was testing at 4.2ghz with HT on. I finally figured out that sweet spot on the vCore that would keep it from overheating but just barely be enough to keep it from crashing.Quote:
Originally Posted by GenTarkin
If your temps are under that and you're brave then up vCore a bit. I think I saw someone run their chip to 100C on the stock cooler earlier in this thread without it dying or anything.
Hehe, I guess I was just excited that someone else might have a system they can push great mem numbers on besides Eva. His results are simply unparalleled so far are they not? :shocked: Maybe there's something to that DFI board. :up: He's obviously a true expert but it also seems he knows how to get his hands on modules better than most of us will ever see but I'm just guessing.Quote:
Originally Posted by SteveRo
HT on is rough because you are actually saturating the memory bus, esp as you overclock which increases the amount of memory bus utilization possible. The Uncore/QPI is well built to keep those 8 threads fed, these chips are just... :sonic:.Quote:
Originally Posted by SteveRo
I would take the 1720 =) with higher clocks on the cores (HT Enabled). These i7's are such effecient beasts. They really dont need huge memory clocks. Plus if you are willing to take the lower clocks, tighter memory timings may be better...which is just how you are running them =) Cuz...latency is pretty important as well. Even though these i7's dont really have an issue with latency either ROFL!!Quote:
Originally Posted by SteveRo
Which should be faster - looks like I might get prime stable (both with ht on) -Quote:
Originally Posted by GenTarkin
#1. 31x138 for 4.28ghz with memory at 1932 @ 9-9-9-24
(just past 1 hour prime at the moment)
or
#2. 25x172 for 4.30 with memory at 1720 @ 7-8-8-21 (previously had stable for 1.5 hr prime)
1 hour prime is no not enough but it tells me I might be getting close to stable settings.
I suspect #2 is faster because cpu cycles are king but I will bench and verify.
I'm guessing #2 will yield the best real-world results. That memory bandwidth will only show in synthetics.
guys, I highly recommend for anybody using the EVGA X58 motherboard to upgrade to the latest BIOS. I myself still can't believe how great it is, improved my memory overclock amazingly and overall clock and stability of my system.
don't count ya self out... with time and more trial and error memory testing everyone should be able to get more out of their system - just be prepared for alot of bios/reboots between config testing :DQuote:
Originally Posted by SteveRo
HT on = more heat and power output it seems. My i7 920 on TRUE120 air refuses to run 3d benchmarks stable past 4500mhz with HT ON. With HT Off i can do lighter cpu tests i.e. super pi 32m up to 4652mhz !
yeah #2 but for general 24/7 apps probably won't find as much differenceQuote:
Originally Posted by SteveRo
before and after examples for new bios ?Quote:
Originally Posted by Chicken Patty
I bet #2 not only faster, but you will be able to run reasonable 24/7 qpi/vtt volts. I think best thing about 2000 rated ram, is not only fun for benching, but also great for 1700-1800's speed range which will probably be the sweet spot for reasonable 24/7 qpi/vtt...unless you plan to be a guinea pig for us with vtt:D.Quote:
Originally Posted by SteveRo
my 1600 rated ocz 8,8,8 3x1gb maxes out at 2020mhz 8,8,8,21 with 1.96v dram and 1.62 qpi/vtt (dont want to try higher volts)....but the high volts allows uncore 22x for 4400 mhz. Wish I had bought 2000 mhz to play with instead of 3x1 1600.
Updated my max OC HERE.
4085 [215 x 19] @ CPUv 1.3125; PLLv 1.8; QTIv 1.30. This is only LinX 20 tested, not Prime95. [Temps 98/97/93/91 - OUCH!]
4066 [214 X 19] @ CPUv 1.3125; PLLv 1.8; QTIv 1.30. This is only LinX 20 tested, not Prime95.
4047 [213 X 19] @ CPUv 1.31875; PLLv 1.8; QTIv 1.3. Also LinX 20 tested, not Prime95.
4020 [201 X 20] @ CPUv 1.31875; PLLv A; QTIv 1.225. Prime Small 8 hours.
Looks like I am getting to the top of my cooler's ability. I was able to run 4.104Ghz (216 X 19), but temps got up to 99 in LinX, so I shut it off.
**NOTE** interestingly, in prime blend, temps are 10 degrees cooler than LinX. I may be able to get a higher prime blend stable OC than LinX simply due to temps...
Does that still count?? ;)
-td
Well, I have my Mugen 2 installed and I LOVE this thing!
Same OC so far as previous which was 3.67ghz @ 1.23vcore
Temps dropped from a max (linx and WCG) of 83-85C all the way down to max of 63C!!!
Idle temps in the 30's now.
try 4ghz @ 1.33vcore ;) If possible, at 191bclk and 21 multi
well before on the old BIOS i needed 1.341v to be stable at 4.0 GHz. Now it only takes me 1.305v.Quote:
Originally Posted by eva2000
The biggest difference was that for some reason I had a really big problem running the RAM divider at 2:8. I had to run it at 2:6. However, with the new BIOS I can easily run the RAM at 2:8 and it is rock stable. THats the biggest difference i've known, and this BIOS definitely seems more stable.
a shot of my stable overclock for now, still havent tried to push higher.
http://img.techpowerup.org/090127/Capture016.jpg
Have you run any stability programs?Quote:
Originally Posted by Chicken Patty
I am testing 3.8ghz @ 1.27v, 1.255v QPI/VTT HT ONQuote:
Originally Posted by anzial
I had to lower my Uncore to 17x multi ... 18x it BSOD'd with the well known "uncorrectable hardware error detected" in linx
Ram is @ 8x 1.6v 7 - 7 - 7 - 21
Little nervous to try higher, may set it to WCG for tonight see if there were any issues come morning..
Max temps went to 70C at this voltage and clockspeed
Not familar with other x58 boards other than DFI, but are you folks always running uncore frequency higher than recommended 2x dram frequency ? That could be source of instability tried at 8x mem and 16x uncore ?Quote:
Originally Posted by GenTarkin
I don't even have an option to change uncore frequency (Biostar original bios), I assume the board automatically sets it to twice the memory.. any way to check that in windows? via CPU-Z or something
Download cpu tweaker (read only) http://www.xtremesystems.org/forums/...ad.php?t=92190 and http://i4memory.com/f79/memset-v4-0-...-timings-2868/
example
http://fileshosts.com/intel/DFI/DFI_...8m26s781ms.png
Thanks for the link, eva, I know now that uncore is 16x, QPI is 18x, and memory is 4x which I assume is 2:8..
Quote:
Originally Posted by eva2000
Max CPU OC versus Max Memory OC, also - hyperthreading on versus hyperthreading off -Quote:
Originally Posted by rge
Good morning,
So, trying to figure out a couple things.
1. Is cpu cycles still king?
More specifically - are you better off to give up a little cpu oc to get a significant increase in memory speed?
2. Does the increase in cpu oc allowed - due to turning off hyperthreading - overcome the factor-of-two reduction in threads (8 to 4)? (probably not but worth checking anyway).
A caveat or two – this is just one example by one guy that just knows enough to be dangerous.
Speaking of dangerous – I use very high voltages for this and I am also water cooling my cpu – so be careful trying this.
I know there are many other benchmarks that I could have used , I picked these as they were easy (and free).
So looking at the table below – some observations.
1. Lowest Super Pi time is with the highest cpu OC - no real surprise there.
2. Everest read speed and latency improves with increased DDR3 memory speed - Super Pi performance improves with increased memory speed (compare config 3 to 1).
3. Comparing config 1 and 2 – increasing memory speed from DDR3 1720 to 1932 is not enough to overcome just a 22 mhz decrease in cpu speed (looks like cpu cycles are still king)
4. Turning hyperthreading off (reducing threads available from 8 to 4) allows for an increase in cpu oc of about 133 mhz.
This will increase performance in single thread (and up to 4 thread applications) but it is not enough to overcome the reduction of 8 to 4 threads for an application that can take advantage of more than 4 threads - as it appears is the case with the Cinebench multi cpu render test.
Please correct anything I got wrong and make further observations as they occur to you, thanks!
SteveRo, for testing use super pi 32M, 1M is too small a test to test system memory bandwidth and processor
If you ram is 8x, try for 16x uncore. It should me more stable.Quote:
Originally Posted by GenTarkin
That is completely normal. LinX is proven to increase by temps by up to that much over Prime blend. However, I think the gap should be about half that between LinX and Prime small-FFT. I bet you already know this but Prime small-FFT is meant for stressing CPU only by using code that fits entirely in processor cache and hardly touches the main memory. The thing is Prime small-FFT is obsolete AFAIK for proper testing on the new i7 platform because of the new cache design. Of course it would still be a useful tool as it still generates very high loads but I don't think it's enough to max out an i7. I just did a test and I am seeing a 5C increase instantly just from flipping back and forth between Prime small-FFT and LinX with HT on @ 3.990ghz-1.312v.Quote:
Originally Posted by 286SX
LinX is simply generating the absolute highest individual CPU core loads that we have seen yet so we are still surprised at just how much hotter the i7 gets running it with 8 threads, because this processor is very good at running 8 threads at once. :up:
Hey guys, after solving my little bios problem, by upgrading to beta bios F5f... I finally got around to playing last night;
3.66GHz @ 1.325v (1.3500 in bios)
loadline on
20x multi
turbo off
183 bclk
HT ON
auto memory (7-7-7-20 @ 1.5v) 1066mhz
6x memory
16x NB Freq
36x QPI
qpi/vtt 1.275
ioh 1.200
pll 1.86
i ran prime95 overnight (10 hours) fully stable temps around 80c
stock cooler
i would push for 4.0ghz... but this cpu 3839A560 seems to CRAVE vcore... can post with 1.4vcore but not load windows... can load windows AND prime at 1.55v - but temps immediately hit 100c and cpu begins to throttle...
if i am going to push for 4.0GHz - i will definately need a better cpu cooler. wait for TRUE 1366 to come to stores here
maybe i would have better luck with 19x211? some people say better clock and lower voltage with 19x multi?
here's a screenshot...
http://img.photobucket.com/albums/v3...wm21/first.jpg
gotta upgrade cooling it seems. In my case, 191x21 does the trick. 10hours of prime and no crashes so far :)
only for short whiles.Quote:
Originally Posted by YukonTrooper
about an hour of prime, couple of benchmarks, such as wPrime, 3dmark, etc.
Been running for 5 days already without any errors during a benchmark or anything.
What's considered to be stability programs now? Linx? Prime95? What are the common rules?
I know a lot of people disagree with me if not all, but to me stable is a computer that doesn't crash. I haven't really stability tested my current settings, but they've been running for almost 6 days and havent had a hiccup.Quote:
Originally Posted by anzial
If by any chance it does crash two weeks after, then whatever, its not stable, I simply make a few changes boot up again and thats it.
The difference is with running prime 95 for example, is that if there is any instability you'll find it within seconds or minutes, or at most a few hours. But you have to torture your computer, which I have done many times before, but I dont think it is necessary.
Good programs for stability testing are Prime 95, and LINx, those are the only ones i've used.
I consider 24 hours of prime95 "stable enough" to use day-to-do.
I've had rigs before that would run prime95 for 7-8-9 hours and then mysteriously reboot.
my amd rig wont pass prime to save its life, but will not reboot and ran at 3.33 GHz for as long as I remembered, dont ask me how that happens. :ROTF:Quote:
Originally Posted by rob[GL]
Got x 22 multiplier http://valid.canardpc.com/show_oc.php?id=496980 all cores & threads active :ROTF::up::eek:
:woot:
Nice! is that a new bios for your board?Quote:
Originally Posted by PytonOrm
Holy cow did they add a feature to disable the requirement of only one core active for the +2 turbo multi? :shocked:Quote:
Originally Posted by PytonOrm
I could really use that +2 multi for HT off testing. I suspect I probably won't be hitting 4.4ghz HT stable on water though.
No mhz Gain with 22x multiplier, when i tested pumped up bclk :( damn... got unstable system when higher bclk than 190
Enable Speedstep, Turbo and C-state and the 22x multi will show up. But as soon as you load all cores it goes back to 21x. It can be usefull for some single thread benchmarks though.Quote:
Originally Posted by JWMc
i doubt it, the 22 multi is prolly only active on the first coreQuote:
Originally Posted by JWMc
Seems very unstable the 22x, got it to 206 but not valid.Quote:
Originally Posted by PytonOrm
http://valid.canardpc.com/show_oc.php?id=497060
Super pi 32M added - new table below.Quote:
Originally Posted by eva2000
Also revised config #1 to be 8-8-8 due to the need for added stabilty.
Interesting that the super pi 32M score for config #2 beat config #1, I wouldn't of expected that.
you can get 4.4 stable on water if you turn ht off - done it, see my sig.Quote:
Originally Posted by JWMc
yes, cheating, i know.
So how are the newer batches compared to the older? I'm about to take the plunge on an i7 upgrade and I just hope not to end up with a DUD that stops at 3.6GHz.
Ok so after adding the 1x3gb DDR3 2000/C9 memory - I have a new 3DMark06 max. This with the 965 @ 4.433 HT off and 1x9800gx2 @ 745/1103/1862
We still need a lot more data but it looks like people are finding good chips in just about all batches. Some batches more often than others though so we need more data points.Quote:
Originally Posted by jagt
I just made a spreadsheet that anyone can submit data to without a security check. If enough people start using it and you want to help with cleaning bad data out of it (or re-wording/correcting for clarity) I will add you to the access list to modify the spreadsheet directly if you PM me.
http://www.xtremesystems.org/forums/...&postcount=262
I don't consider that to be cheating. I have turned off HT because it's utterly useless. I don't use a single program that would utilize it and I can keep my 920 at 4.0Ghz with only 1.31v.Quote:
Originally Posted by SteveRo
Even if one program can't use HT, it doesn't mean it's not useful. IMHO, HT is a nice feature to have rather than to give up for a higher OC. Of course, I can run 4ghz with HT on with vcore1.31, so I guess I'm a bit biased :D
How many people oc i7 and keep speedstep/powersaving features on? Is there an extra stress on CPU to keep those on?
HT sure is useful in WCG crunching =) lol, I just joined that and yeah....I game while its doing that in background. The i7 is simply a monster. No slowdowns in games while WCG is goin woot! 8 threads of goodies!Quote:
Originally Posted by Classic Satch
Today I started OC'ing my new hardware. Besides the first results (which look promising, I gues) I also bumped into some questions.
Questions:
As you can see I'm using Asus P6T mobo but there are some settings in bios which I'm not sure of what to select. These are the following items and settings I applied:
C1E Support: disabled
Hardware prefetcher: disabled
Adjecent cache line prefetch: disabled
Intel Virtualization tech: disabled
CPU TM function: enabled
Execute-disable bit: enabled
Intel HT technology: disabled
Active processor cores: all
A20M: disabled
Intel speedstep tech: disabled
Intel turbomode tech: disabled
Intel C-state tech: disabled
- Did I apply the correct settings on overall?
- Is it possible to enable a power consumption saving setting (like speedstep for instance) while overclocking?
- Is it possible to use turbomode on P6T when using 190+ bclk?
First results
After a lot of reading I applied some reference voltages in the bios and started OC'ing right away. It seems to be stable right away. I'm not used to that after switching from P5E3-Premium to this board. These results are without HT enabled. But is there much more vcore necessary when enabling HT? I think my temps are good and still have some potential left. Nonetheless I would like to know your opinion on these results and if possible give some advice for improvement.
Settings:
MP: 20x
BCLK: 200
DRAM: 1200
Uncore: 3200
QPI: 3600
Vcore: 1.35
CPU PLL: 1.92
QPI/DRAM: 1.35
CPU spread spectrum: disabled
PCIE spread spectrum: disabled
Everything else on AUTO
http://img134.imageshack.us/img134/3...puoczm3.th.jpg
I guess everyone has their own priorities. HT serves absolutely no purpose for me so it stays off. I'm spending every moment of free time playing Fallout 3 and it's DEFINITELY not necessary for that. ;)
Pisklink, nice results. What's your cpu batch #?
a couple ideas for you.Quote:
Originally Posted by Pisklink
i think the max cpu pll should be no greater than 1.89 (according to intel)
you may need more than 1.35 vcore for 4 ghz, I needed 1.4v
Batchnumber is 3836A875Quote:
Originally Posted by anzial
Thanks for the overview of voltages. It seems I don't need more Vcore with current settings because if you look at the screenshot I already was benching on 4Ghz @ 1.35v. Only if I would put on HT I think I will need more voltage. I will try to put CPU PLL lower and see if it's still stable.Quote:
a couple ideas for you.
i think the max cpu pll should be no greater than 1.89 (according to intel)
you may need more than 1.35 vcore for 4 ghz, I needed 1.4v
Why is it so quiet in here?
Is the max. voltage for the CPU 1.55v according to Intel specs in the overview above?
I still don't get what PLL is for.
I was priming @ 4Ghz, 1.35 vQPI and 1.88 PLL which are the maximum safe values set by Intel.
Then i decided to put PLL back at 1.80 and it kept priming for 6 hours until I had to stop.
weird
I keep seeing how some of you have better stability when raising CPU vtt compared to core voltage.
Well raised CPU VTT from 1.25v to 1.30v and at same vcore went from no stability at all @ 4.1 Ghz, to at least running 3dmark, Will test stability further over the next few days, see how it behaves :)
http://img.techpowerup.org/090204/Capture029.jpg
I finally got ahold of a kill a watt and measured my OC power numbers =)
Very interesting to say...and system not using anywhere near what I thought it would.
My major hardware is listed in my signature.
Here are my readings 3822mhz @ 1.27v 182x21 VTT/QPI@ 1.25v 3095mhz .. all other voltages on auto:
Computer off but plugged into wall: 2watts
POST to windows an average of 160-190watts
Windows idle:160-175watts
WCG number crunching: 290-300watts
WCG+3dmark06: 370-395watts
3dmark06 only: 260-290watts
Prime95 blend: 307watts
CoreDamage: 325watts
Now the next point is...the PSU effeciency is rated @ 80+. I am not even using its full load capacity meaning its more likely less effecient then that. So, assuming 75% effeciency...is it correct to take 25% off the above numbers and that number is the true power draw of my PC? (obviously I know the socket sees the full numbers listed above, but Im talkin internal usage after the effeciency of the PSU is taken into affect...)
Hey huys! I tried to overclocked my core i7-920 and the only stable until now is 21x166 in 1.128V! I run LinX and it passed and the max temps are 65-75. I ordered a few days ago 4x1 OCZ GOLD edition pc3-14400 1800mhz and i will try to overclock when they arrive. My problem is if i use 3x1gb of OCZ is it going to work trible channel?
http://img516.imageshack.us/img516/7767/linxbu9.jpg
I'm not sure but I always thought the efficiency raises when not using the full potential of a PSU. So if a PSU is rated for 800W it will provide e.g. 85% efficiency at that max capacity. If less power is drawn the efficiency will raise because all the PSU components are less stressed.Quote:
Originally Posted by GenTarkin
@ All
Is it correct that 1.55v is the max. allowed vCore according to Intel specs?
I don't get it, what's the speed on my computer? :rofl: I guess, at stock speed, and idle cpu one core is overclocked, and the rest are taking a break? So tweaker reports the multi of the cores that are on the break, and CPU-Z- the single working core. Is that a reasonable assumption?
Absolute max is 1.55v, Your problem would be cooling that damn thing at that voltage. Do you have a un-heated basement? :rofl:Quote:
Originally Posted by Pisklink
Thanks for your reply. Luckily I'm living in an iglo on the Antartic so cooling shouldn't be a problem. :D
Nah, my chip doesn't get that hot really. It's watercooled by a D-Tek Fuzion version 1 with 5,5mm nozzle and at 4080Mhz it gets around 48 - 50 degrees celcius in Realtemp.
If you can stay under the max volts (I would want to stays under 1.35 qpi vtt and under 1.65 for the memory) you should have no problem running that memory 3x1gb - running 3 not 4 strips correct?Quote:
Originally Posted by poupouxios
If you have C1E, eist or some of the other power saving stuff turned on in the bios - that seems to confuse some of the apps. the latest version of realtemp shows the multi dropping down if C1 is enabled - I can confirm that.Quote:
Originally Posted by anzial
I wan't talking about realtemp, it's the discrepancy b/n the tweaker and cpu-z I was talking about.
when I have C1E enabled cpu z reports just a little under the bios clock.Quote:
Originally Posted by anzial
I don't know what the problem is with tweaker.
Thanks for yous answer! Yes i will use 3 strips! But the max volts of OCZ 1800mhz are 1.9volts. You mean to stay under this max volt or the 1.65 max volt?Quote:
Originally Posted by SteveRo
1.65v as stated by Intel
Well, the jury is still out on this, intel says - some where (I do not know where) not to exceed 1.65v but then there's the intel electrical spec - see below - not sure what to believe. I try to stay below 1.65, a lot of folks are going by the rule of keeping memory volts within 0.5v of qpi/vtt. So if your qpi/vtt is 1.35v, you want to keep your memory volts to leas than or equal to 1.85v. I know of no one that had fried their cpu (yet).Quote:
Originally Posted by poupouxios
anzial: RealTemp reports your average CPU multiplier. Depending on your C1E / EIST bios settings and how the Windows power options are set up (Minimum processor state), you might see the multi jumping up and down at idle. I left RealTemp like this because it best shows you what's going on. If EIST and your power options are set up properly, at idle, you should have a consistent multi of 12.0 on Core i7. If you don't want your multi dropping at idle then you need to make sure SpeedStep is off and Minimum processor state is set to 100%.
Sometimes CPU-Z does some averaging and reports the multiplier at its full value but the displayed MHz will be based on some sort of average. Your screen shot is a good example. CPU-Z shows 133.3 X 22.0 which doesn't equal 2907.9 MHz which is displayed.
rge did a lot of Core i7 testing for me so I think you should be able to trust RealTemp MHz as well as temperatures. Here's the most recent release:
http://www.xtremesystems.org/forums/...postcount=3166
RealTemp 2.70 does not properly support Core i7 so don't use that version.
what are the max temps for the 920? is 75c too hot on core 1-2 and 69 on 3-4 running 2 instances (8 threads) of p95? running 194x21 turbo on.
absolute max is 100ºcQuote:
Originally Posted by hlonipha
I like to be under 85ºc when I was on air.
ok cool im not so bad then.
thanks for a most excellent app!Quote:
Originally Posted by unclewebb
getting better all the time!
OK thanks! I will wait to take and the other 2x1gb of my ram and i will try that what you said me! I don't understand this! Why cpuz says that my ocz until 667mhz can go? And in everest it shows me that my ram are 1333! And i have 5gb install and vista shows 4gb!Quote:
Originally Posted by SteveRo
http://img24.imageshack.us/img24/7637/problemjx0.jpg
unclewebb, thanks for the info. TBH, I don't use realtemp to watch my processor speed, only temps, but it does report it correctly when I'm oc'ing. I was only curious why there was such a discrepancy b/n CPU tweaker and cpuz, hence my theory.
poupouxios, you are not running 32-bit windows by any chance, do you?
No, i know the difference between 32 bit and 64 bit! You can have in 32 bit 2^32 bytes ram and in 64bit you can have 2^64 bytes ram! Now i don't understand why is doing this! I think is something i have to do in BIOS of Asus P6T Deluxe..Quote:
Originally Posted by anzial
Well, I dunno, I'm running vists 64 bit and all 6gb of my memory show up. I did run the same thing with Asus and had no problems either. There might be a setting in bios, yeah, forgot exactly what it is, look under cpu menu
I would really appreciate it if someone could tell me what would be the best motherboard for ocing 920. I currently have ud3p with q9550, the ud3p is very easy to oc and its very stable also it is very cheap.
What mobo would be best for ocing with
good stability,
good price,
easiness for ocing.
Thank you mates, cheers.
Poup - I think I have seen this before - I don't know why everest does not match cpuz - what I trust is cpuz memory screen.Quote:
Originally Posted by poupouxios
I am partial to the gigabyte boards - I have the extreme.Quote:
Originally Posted by technut36
Based on what I have seen, I think the UD5 is just as good as the extreme for less $!. http://www.newegg.com/Product/Produc...82E16813128362
Asus P6T Deluxe supports 1800 mhz ram? Because in some places i read it supports in others no!
I was able to put my oc'ed i7 to sleep a few times with no issues. The fans/pumps don't shut down, though so maybe it doesn't go to sleep completely. I have all power-saving features disabled though.
system in sig, can't seem to get my g.skill pi ddr3-1600 to do it's rated speeds no matter what i try. even 760mhz is working fine, but 800 = no go...not to mention my chip doesnt seem to be doing so good either in the overclocking department ;\ only got 3.8 stable on 1.36v so far, 4ghz blue screens up to 1.43v. haven't really messed with qpi voltage at all, tried up to 1.25v. the guys with UD5 are doing like 1.4v qpi but i have a UD3 x58 so i don't know if that applies or not.
thanks budQuote:
Originally Posted by SteveRo
kind of a double post in a way but i've tried a bit more here..
new build is in sig, i'm out of ideas here. I've tried leaving all memory settings at auto, manually set 8-8-8-21 (rated speeds), tried lower cpu clock, 1.64v on ram, 1.45v on qpi/vtt, etc... i just can't figure this out. no matter what, anything higher than 1520 results in it just sitting there with a blank screen when trying to boot then shuts down, comes back up and it had to set memory back to default, which makes it 1066 on my board i believe
1520 appears to be working with no issues, but this is really hindering me from trying to get a 4ghz stable clock down because that requires 1600mhz
anyone have any ideas?
i noticed in cpu-z that my SPD for 1600mhz is coming up as 2T...is this true? I was under the impression ddr3 can run 1T..i havent even tried 2T
Guys, got a questions
My RAM at default is designed to run at 1333 MHz. Right now it is running at 1524 MHz. What can I do to increase RAM stability without lowering the divider from 2:8 to 2:6??
I know that is my problem going from 4.0 GHz to 4.1 GHz because I wont boot like this. I drop my divider and it goes into windows and is stable for a long time, then it'll just take a slight bump in voltage to stable out the system. But ram seems to be holding me back in this case.
ANy remedies to this other than dropping the divider?
My DRAM voltage is 1.66v right now.
http://img.techpowerup.org/090206/Capture034.jpg
I think you already succeeded at that :DQuote:
Originally Posted by Chicken Patty
IMHO, you might wanna try bumping QPI/PLL voltage as it also might be related the IMC being a little unstable at high overclocks
Woops lol. Thanks for pointing that out bro :up:Quote:
Originally Posted by anzial
what do you suggest QPI is at default of 1.1v and VTT is at 1.25v
I had to underclock my Corsair ram to get stability. They are running at 1200 instead of 1600, however they are only rated at 1333, so I didn't expect much. Also, if you check out the EVGA forums, a lot of people are having issues with Corsair non-dominator ram with the EVGA board. I am planning on getting the Mushkin 1600 ram when I get some more money.
Thanks for your post.Quote:
Originally Posted by Utnorris
I am probably getting some PI Blacks next week. How do you think those would do?
anyone seen some 3842A922 results around ?
Damien - I do not run 2gb strips, others do and some have reported problems.Quote:
Originally Posted by Damien
I have similar gskill memory as you but the 3x1gb (2k) and they work great.
One thing I noticed when setting the bios to use xmp - gskill has the xmp set to run the qpi/vtt all the way up at 1.5 to 1.55v!
So - 1st question - have you tried with xmp on?
Then 2nd question - have you tried with high qpi and mem v - for testing and even over night - 1.55 qpi and 1.84v memory v will not hurt you.
I would recommend that you keep qpi and mem v within .5 volt of each other.
Alot of modules quote their rated timings at 2T and not 1T so read the fine print on manufacturers' websites :)
Just doing some quick Super Pi 32M tests to see how this 2nd i7 920 cpu does in terms of raw cpu overclocks and to my surprise it handles like my 1st i7 920 even down to it's max Hyperthreading enabled Super Pi 32M ceiling being under 4500Mhz. On air cooling, anything over 4500Mhz will reboot part way through Super Pi 32M with HT enabled. Need to disable HT to pass Super Pi 32M at >4500Mhz speeds.
Max 32M
http://fileshosts.com/intel/DFI/DFI_...8m21s062ms.png
http://fileshosts.com/intel/DFI/DFI_...8m09s594ms.png
http://fileshosts.com/intel/DFI/DFI_...8m02s766ms.png
Haven't pushed it higher than 1.536v vcore yet.
System specs
- Intel Core i7 920 3836A756 #2
- Thermalright Ultra 120 Extreme + LGA1366 Bolt Thru kit + 2x 120x38mm Scythe UltraKaze 2000rpm 87cfm fans in push/pull
- DFI LP UT X58-T3EH8 R.A51 - 01/23 beta bios
- 512MB Inno3D 8800GT OC Edition
- Ram cooling: 3x 60x25mm Sunon 23.5cfm Maglev fans
- 750GB Samsung SATAII
- Pioneer DVD-RW
- 1KW Corsair HX1000 psu
- WinXP Pro SP3 full nLite updated hotfixes / Windows 7 beta dual boot
i'm not sure what you mean when you say 2gb strips. im assuming ram modules?Quote:
Originally Posted by SteveRo
anyway, your advice helped a bit. my qpi/vtt is one voltage setting and the highest it can go is 1.495v, so I set it to that. set my ram to 1.66v and my cpu pll to 1.9v.
booted at 798mhz just fine, farther than I got before. Except...only 2 sticks are showing up? check the Screenshot. CPU-Z looks good but everest and windows are reporting 4gb... i think something needs RMA'd here or i'm really just missing something. I want to think it's the advanced ram timings that I need to mess with but I have no idea what to even consider making them..
ALSO, I'm not so sure everest and windows are reporting wrong, because the bios splash clearly said 4gb checked out. it also said 2gb checked out on a few reboots. going back to stock settings, it shows 6gb checked out and everest and windows both showed 6gb as well.
Pi blacks working out fine for me so far -Quote:
Originally Posted by Chicken Patty
Wow eva - some excellent numbers!
Download and run memtest.Quote:
Originally Posted by Damien
The version I have runs from a CD.
If that check's out - you should be fine.
SteveRo can you run your 2000 rated mem easier using higher multis and lower bclk's? Reason I am asking, trying to see if just my cpu, my ram or what. My OCZ 3x2gb 7,7,7 1600 I can run at 2100mhz 8,8,8 (12mem multi x175bclk) with 1.6qpi/vtt and 1.96DRAM for benching spi, etc without issue. However running mem at 10x202, I cant even boot (tried uncore 20 and 21). I can run 21x200, mem 10x200 2000 mhz but barely stable. Going to 201 and no boot, no matter what even trying much higher vtt, dram qpi pLL, even tried raising everything...different timings, taking outside in cold...no go. I dont know if it is because I have to crank my volts way up to run at 2000 to begin with and just cant handle anymore...curious how low voltage ie mem rated 2000 behaves...maybe it is just harder on mem controller? and my cpu cant handle it.