well i havent tested it with prime95 overnight or nething
but system dont hang so far :P
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well i havent tested it with prime95 overnight or nething
but system dont hang so far :P
thanksQuote:
Originally Posted by buddatech
do a quick run for comfort, 2 hours or so, if it dont fail then, just enjoy it bro. I dont see the point in testing for so long. does 2 or 3 hours just consider it stable, and enjoy your o/c. If it crashes down the road then tweak it, the same way you would if you crash during prime 95.Quote:
Originally Posted by 2slick4u
Do you realize how loud those will be. You'll lose about 5*C at most but the noise isn't worth it IMHO.Quote:
Originally Posted by 2slick4u
the things people will do for a few degrees:shrug:
Thats my method as well, test for 2 hours, thats enough for me, if something fails i go back and test again with different programs. :up:Quote:
Originally Posted by Chicken Patty
Thank you. I'd thought no one will ever agree with me. Why put it through the stress of 10 hours or 12 of prime. Just enjoy it and use it. If it crashes tweak it just as you would if prime fails. I've been running my 4ghz daily setup for 3 months now ever since I went core i7 and it has not crashes once. I have never ran prime on this setting. If it crashes a month from now, i'll simply tweak it, thats it. Same with prime, you run it for 12 hours and it didn't crash. What if it would have crashed after 14 hours? You never really know if your rig is stable, enjoy the damn thing and stop wasting hours just stress testing it!Quote:
Originally Posted by GAR
Lap that puppy to knock 5-10C off load temps.Quote:
Originally Posted by PC_User
I've been running my noctua with the 2 fans that comes with the vigor monsoon and use the noctua fans for my case, They should be similar to the ones found with noctua, My 4.0 ghz stable with 1.36v is 82C although i have a good airflow which also helps. Again please don't assume that your heatsink is inferior to the others because many variables can come into play such as airflow, speed of fans and ambient temperature. The noctua's mount is the best i've seen, last one i used that was similar was some Alpha cooler back in the AMD XP days. The noctua's mount is so easy that you do not need to take out the motherboard when u are ready to perform a cooler dusting. I can live with 1 or 2C higher and i have yet to lap this 2nd 920 set up. But taking out the mobo is a huge PIA just to perform a rutine maintenance operation. To me the TRUE is the best but at the expense of convenience. Which is one of the reasons i use the Noctua and recommend the Noctua.Quote:
Originally Posted by 2slick4u
I think the temperature is due to the speed of the cpu and not the voltage. The cpu's runs really hot specially HT on. So if u want to stay in the 4.0ghz in a hot climate WC or extreme Air is a must. I will probably back down my clocks for the Oklahoma summer due to the enormous heat this thing puts out. I have 2x 15k SAS drives which i plan to add another 2. So this is something i have to take into consideration.
It should fit with no problems but you may have to change the orientation of the heatsink since the extra 10mm of the fan will not let you use the 1st slot. I would not do it at 45dba but thats just me.Quote:
Originally Posted by 2slick4u
Thats true. I might just buy 2 higher rpm fans, but problem is I dunno if it will fit directly on. But i do some research :P thanks for your input :)Quote:
Originally Posted by Fafeifa
[QUOTE=Chicken Patty;3735025]Also depends on what volts your using ;)Quote:
Originally Posted by 2slick4u
lol... In the AMD days I bought a Delta 110cfm fan and I thought the computer was going to take off flying. took it out and replace with a lower rpm fan. Once in a while I plug the fan just to hear that thing. it is louddddd. :shocked: :down:Quote:
Originally Posted by PC_User
I hear loud enough whenever I'm working on a 1-2U rack mount server :DQuote:
Originally Posted by hlonipha
@2slick4u - Use Memtest86+ 2.11 and Memtest HCI for a few hours each on it and see if anything errors out. If yes then you need to increase the timings, if no then you are good. You do not want to have your DRAM cause errors as things will get corrupted over time.Quote:
Originally Posted by Chicken Patty
By the way, I am glad dropping the memory multiplier worked out. The chip obviously has a weaker IMC.
I agree as well. My Q9450 (at 3.8Ghz and 1900fsb) I only ran P95 for 1 hour to test stability! Then I played games, downloaded, surfed, all the regular stuff I normally do, and did increase Vcore initially a never a crash or bsod since (almost 1 year now no crashes, and never a stress test more than 1 hour long). If it's not stable, it doesn't bother me (as using computer as I normally do is stable).Quote:
Originally Posted by Chicken Patty
My buddy thought I was crazy, and says I should run P95 for at least 24 hours. I said ok, hows about my car? it runs, it gets me to and from work trouble free. But I don't know if I could run it full speed for 24 hours straight, and don't care, thats not how I normally drive it.
btw
my i7 920 is also 1 hour P95 stable at 4.2Ghz, same deal, now just playing games and surfing the web, burning disks, and all the stuff I normally do to test if I am stable. 1 month no crashes at all (only had the i7 a little over 1 month)
eheh WORD! "not so sound to immature" :) but thats' my motto too! If crash = tweak as above speaker.
if it crashes after 10 mins Blend prime, sure something is wrong. but why bother priming all night and days...geez :)
if it is used as a server then maybe, but servers are usually dual socket, or racks and not overclocked, and therefore stable.
enjoy the speed!
I cant seem to get my kas 3000 fan to fit on my heatsink without it hitting my ram and my ram is on the second slot already :S
Never mind I got it to fit but i cant fit ram in my first slot :P
but temps are better with this fan
yah stress testing over night and all that stuff to me is pointless. Enjoy it, if it crashes, just simply tweak it as if you failed prime. Same crap, different toilet.
I do generally agree with this. I believe some amount of stress testing is good, but in general go with it and if you have problems then tweak. Exception are those people that do 24/7 work with full load on all cores/threads as they need absolute stability. But this kind of goes in the face of overclocking too since any overclocking always increases the chance that the system will be unstable, regardless. Moreover, if it is just a small instability it may now show for weeks.Quote:
Originally Posted by Chicken Patty
By the way, those that haven't done so already head on over to my contest thread here http://www.xtremesystems.org/forums/...d.php?t=220984 and drop me a line. I can only win with your support!
Thanks guys :D
I was using 2 ultra kaze on the nochua back in December worked fine - use a fan controller.Quote:
Originally Posted by Fafeifa
Come to my conclusion, i do a x20 run of Linx, that's the "heaviest" prog for the cpu, if it finishes, im satisfied, if some problems occure later on, I'll deal with it!Quote:
Originally Posted by Chicken Patty
Ok, nough with this :) not all of us got this 24hour paranoia ;) for some silly reason, seems like become some kind of stupid contest making the cpu last the longest in a stress test that NEVER will happen in an everyday usage EVER! Sincve WHEN do you play 24hour straight? and even then, the CPU will NEVER get stressed like Linx EVER never in a game, the graphic will cut it before the cpu if that's the case or something else, i think as long as people understand pretty good how the bios and tweaking goes, the cpu will be the strongest part in the system, people never thought game crashes almost never are becouse of the cpu? Mem, and gpu are first to strike. now to sleep ;)
sleep tight my OC buddies :P
Lol, well said :DQuote:
Originally Posted by Infa
@SteveRo - thanks for dropping me a line in the competition thread again :D
I bought a zalman fan mate controller doesnt seem to work :S
no matter if i turn it to min or max i see it still at the same rpm 2800RPM? any advice?
amen to that :up:Quote:
Originally Posted by dejanh
I'm happy now the temperatures are better 40*C idle and load 70*C
:up:now go higher :ROTF:Quote:
Originally Posted by 2slick4u
I dunno if i can get 4ghz I currently lowered the vcore from 1.35 to 1.32 :P
I havent prime it but now im too lazy i just run it like this until it crashes LOL :P
just enjoy it then, when you start getting bored, then overclock lol.Quote:
Originally Posted by 2slick4u
yes i totally agree with that :)Quote:
Originally Posted by Chicken Patty
glad this kas 3000 doing the job with the temp
i was going to switch to the true 120 but glad i just spend 15 bux on the fan and got me some results :)
Didn't waste anytime on getting that Kaze 3000 and fan mate congrats! Hope it works out for you and give a comparison between the noctua fans and the kaze, thanks.Quote:
Originally Posted by 2slick4u
well i just got 1 kas 3000 I also have the other nortua fan hook up to the exhaust side. Temps with stock nortua was like 45-47 idle and 77-80 load with prime of courseQuote:
Originally Posted by buddatech
and right now i'm idling at 40-43 and 69-72 load with prime
And also i dunno why my fan mate dont seem to work properly..
I put it at max and the speed is like 2500RPM with out the fan mate its 2800RPM?
nice temp decrease for a small investment :)
you think its my fan mate that is not working properly..Quote:
Originally Posted by buddatech
I cant get the 3000rpm speed :P my max is 2800rpm
No, mine is the same. Fan mate draws power from the fan in result not giving you 3000+/- 10%
yeah i took it off fan mate and now its running 2800+ which is pretty good my temps are decent on 3.8ghz 1.32v
only problem is its blockng my 1st dimm :P cant fit a ram there :S
How did you get to 4Ghz? i noticed your sistem is like mine except i only got 3gb in DC.. i also wanted to get mine to 4Ghz.. im @ 3.8 for now..Quote:
Originally Posted by PC_User
Thanks
Those kas fans are insane...pushing 113cfm at 3000rpm. Must be loud, though. Good drop of about 5*C nevertheless.Quote:
Originally Posted by 2slick4u
My settings:Quote:
Originally Posted by Godmyster
Frequency.........................4.0 GHz
Clock Ratio.......................20x
Bus Speed........................200 MHz
vCore..............................1.3750 in BIOS | 1.344v idle, 1.328v load (CPU-Z)
QPI/VTT voltage................1.32v
DRAM..............................1.58
Uncore Frequency..............3200 MHz
QPI Link...........................x36 (7.4 GHz)
Performance Enhancement...Standard
Memory Multiplier..............8x
Memory Speed..................1600 MHz
*Hyper-Threading Off
Im thinking of upping IOH volt to 1.20 to get stability. Any thoughts?
The question is, what are you trying to get stable?Quote:
Originally Posted by scyzer
I cant boot into Windows, but I can't get a higher than 3.7GHz clock prime stable.Quote:
Originally Posted by dejanh
I've tried multiple things, different voltages for various settings, different multipliers, etc.
Can't get Bclk above 185. Maybe I can try an even lower CPU multi to see if it is even possible to get the Bclk higher with my setup.
If you could provide a bit of help (do you need more details?) that would be great.
Sure, let's see what you max BCLK is to start...also, please post your system configuration and current settings...Quote:
Originally Posted by scyzer
Drop your multiplier to 12x, then set your BCLK to 170MHz to start. Set your CPU Voltage to 1.35V, and your QPI Voltage (VTT Voltage) to 1.35V, and make sure your DRAM voltage is set to 1.65V (or very close to that). Also, set your memory to a low multiplier so that you are running your memory below its rated speed. Try to boot Windows. If you boot fine, restart and increase your BCLK by 10MHz to 180MHz. Then if you boot again, increase it by another 10MHz until you get to 200MHz. After 200MHz increase your BCLK in 5MHz increments until you get to 215MHz. Then increase it in 1MHz increments and see if you can boot.
If at any point you cannot boot, increase your QPI Voltage (VTT Voltage) by 0.025V and try again. Keep increasing it by that amount until you can boot at the given BCLK. Do not exceed 1.475V on QPI. For example, if you cannot boot at 190MHz with 1.35V QPI and you increase the voltage twice (2 x 0.025V) to 1.4V QPI and then you boot fine, you need a minimum 1.4V QPI for 190MHz BCLK. If you want to be sure that the given BCLK is stable then take the minimum QPI voltage required to boot and add about 0.025V to 0.05V to it.
By the way, check your private messages. I need some help from you as well.
Try to lower the CPU multi and keep the ram speed and ratios unchanged. Don't change the voltages. If it boots and is stable, then its the CPU that needs tweaking. If it doesn't, then you know your ram settings are unstable at that speed.Quote:
Originally Posted by scyzer
He has not even done the work to determine his max BCLK or what settings he needs to run a particular BCLK. This just won't work for him. It would be like running before learning how to walk.Quote:
Originally Posted by PC_User
Overclocking is not just about plugging in random numbers and hoping for the best. There is a process for it that should be followed if you want to have a decent chance finding good overclocks without excessive trial and error.
what bios are you using? i cant get 20x200 stable at all, im using F4r bios for the UD5..Quote:
Originally Posted by PC_User
Some 920s just don't seem to like that combination. Try 21 (with turbo) x 191 or 19 x 211.Quote:
Originally Posted by Godmyster
3838B has a weak IMC IIRC. Try 19x211 as the post above said.Quote:
Originally Posted by Godmyster
Bios said that i can only go up to 20x, i tried 19x211 but didnt go maybe some of my voltages are not right, dunno, i also wanted to know the best bios to use here...
Sorry, been busy with my Honours thesis so I haven't been able to do this yet.Quote:
Originally Posted by dejanh
However, I've tried Vcore at 1.400, QPI/VTT at 1.360, VDIMM at 1.660 and CPU PLL at 1.88 before and couldn't get prime stable with 18, 19, 20 times multis with Bclk over 190. I could boot into windows in most instances. I've set Memory and Uncore multis to 6x/(12x or 13x) and 8x/(16x or 17x) respectively. According to GB's Easy Tune 6, at load Vcore dropped to 1.360 and VDimm to 1.616. I am using Prime 95, CPU-Z and RealTemp to stress and monitor.
I know that I should have tried finding my max Bclk, but I was still hoping at the time that I could just get to 4.0GHz with ease (apparently not).
Now I'll have to wait until I get some University stuff sorted before I can try again. Thanks for the suggestions though.
Isn't it true that if you e.g. find a max. bclk of 210 with all multi's lower than rated and a QPI/DRAM voltage of 1.35v, this doesn't imply stability when raising the multi's? To put it in other words, wouldn't QPI/DRAM be stressed more after raising the multi's again and subsequently needs additional voltage? Or is that the reason you suggest to add another extra 0.025 or 0.05v?Quote:
Originally Posted by dejanh
So far for me is F5GQuote:
Originally Posted by Godmyster
Yeah, I would suggest that you follow a process come time to try OCing again. It will take a lot of guessing out of the equation and we all know guessing in equations is not good ;)Quote:
Originally Posted by scyzer
That's why I suggest to add extra voltage :D Everything requires a bit of tweaking, but you have to start with a solid foundation first. Maybe you will even find that you need to add 0.075V, though unlikely unless you are using one of those even multipliers like 20x or 22x. Most chips do not favor those.Quote:
Originally Posted by Pisklink
I m running 19x200 atm. I m limited by stock intel cooling. I use (all values are written from inside vistax64) vcore:1.23v, vdimm:1.60v, vtt:1.28v. I run prime small ffts 2hours stable, prime blend 2 hours stable, memtest 2.11+ 2 full passes no errors. But as soon as i run LinX 64bit with full memory usage after exactly 25sec system freeze. I dont have any temp issues, using prime i max at 77-78C. Any suggestions on this?
Your QPI/DRAM (VTT) voltage is a bit low. I would increase it to 1.35V and then try to run LinX.Quote:
Originally Posted by ChaosAD
If i remember correctly i did try up to 1.34v with same results. If vtt was low, shouldnt i have problems with prime blend or memetest?
have you tried the F6 bios? wanted to know how they are so far... i noticed that the F6d came out recently... any feedback?Quote:
Originally Posted by hlonipha
Well, I'd look towards your temps then. LinX pushes the CPU more than Prime Blend so I think you just do not have adequate cooling for your setup.Quote:
Originally Posted by ChaosAD
I'm using F5. Everything is fine, but I can't get it to sleep properly... :mad:Quote:
Originally Posted by Godmyster
I agree. I made a spreadsheet with a bunch of combinations. Picked initial clock and voltage values and started incrementally increasing/decreasing some. Took me about 30 trials before I came up with 3 stable settings.Quote:
Originally Posted by dejanh
Thats why i am curious what the problem is. On the first 25secs, that pc freeze, temps are at the same lvl as prime. No signs of overheat till then :shrug:Quote:
Originally Posted by dejanh
Try to get some extra fresh air over you CPU (e.g. air from outside using a blower or an airconditioner). Use that as a quick method to find out if it will hold longer in LinX. Probably it will still make it freeze but maybe it will take some longer. If it repeatedly freezes after 30+ seconds or so, you could conclude it is a temp. problem.
I know it is not exactly an empirical way to find out but it's cheap, easy and a quick way to provide you with some information. You could always buy an aftermarket cooler for around 30 euros.
Hey all...
Built another system based on i7... this time i got a 920 batch #3841A346
Any comment?
3841 is a pretty good batch. Should get to 4.0Ghz pretty easy.
I on the other hand, just ordered a D0 i7 920 (Xeon W3520). Should be here in a day or two :)
Wish me luck :)
Hey guys, I've got a d0 stepping 920 here with the batch number 3848A648. You guys know if it's any good? Oh and I'm probably gonna OC my processor later tonight. Any suggestions on what I should start with? Maybe a guideline for me to start with? I'm on a P6T deluxe and 6GB corsair dominator 1600mhz. Currently running on stock settings.
Is there a bios that lock 21x MP on EVGA x58? I use Xeon w3520 d0.
The w3520 is overclocking like a god :)
People, need some help.
I used to have some generic 3x1GB 1333 DDR3 modules and my system was rock solid (10x Linpack stable) at 3.9GHz (205x19). Now I have them replaced for some 3x2GB 1333 modules from the same brand and they seems to overclock as well as the 1GB modules (verified with memtest) but I can't run the system stable at that clock anymore.
What voltages should I tweak? vQPI? IOH?? I tried a little more vcore too but still not stable.
When I went from 3x1gb OCZ on windows XP, to 3x2gb OCZ on windows 7, I had to increase DRAM volts from 1.6 to 1.64 and increase qpi v from 1.31 to 1.35 to achieve stability.
I also had to bump up my vcore by 2 notches, but later confirmed that is because I used linx 64bit with 4-5gb of memory for testing. linx 64 bit using 4-5GB mem required 2 notches higher vcore to run 10 passes stable, vs prime for 14hrs or linx 32 bit (linx 32 bit can use only ~2gb max)
Alright guys, my first time overclocking and I managed to get a core speed of 4.2ghz with 200 bclock and x21 multiplier, so I'm pretty proud of myself. :P Question about the bclock though. Unlike the FSB (higher, the better; even with a lower multiplier), the new bclock doesn't work the same way, right? Or does it?
Any good software besides Prime95 to test stability too?
Thanks, that was exactly what I was looking for.Quote:
Originally Posted by rge
I had to up my vDIMM too but they are stabe at the memtest now, so I'll try higher vQPI and vcore.
I am on Xeon W3520 , Apogee GT 1600, BloodRage
At the moment i do 195,4 x21 for 6 Hours ,
Vcore @ 1,32V, Ram @ 1,67V , Vtt @ 1,28 tems @ 62°-68°C
Max tried without any problems 211Blck
http://valid.canardpc.com/show_oc.php?id=558035
Alright, I just tested my CPU for about 6-7 hours on Prime95. What do you guys think of the results? I personally think that the temperature is really high and I really wanna lower voltage, but my computer doesn't seem to boot with anything lower than that voltage. Any tips on what I should do? Also, my bclock doesn't seem to be able to get pass 215. What's up, eh? =/
http://img26.imageshack.us/img26/6678/resultsk.jpg
I'm currently trying for 204 bclock with the multiplier set at 21x. I did some stress testing on the CPU for about 30 minutes, ran without errors, so I'm gonna leave it on for tonight and see how it goes tomorrow.
might need to up your trfc a bit tooQuote:
Originally Posted by Viper.Br
Quote:
Originally Posted by Efekkt
Results seems fine compared to other D0 chips which posted results.
Regarding the bClk, what board are you using ?
Anyway, try to increase IOH/ICH voltage a notch or two.
In addition, try to increase PCI-E frequency, around 110Mhz could do it.
And if this doesn't help, start tweaking that BIOS :up:
I always prefer to work with high Multi (x21) and low bClk, i920 likes 21 multi in most cases.
Efekkt: 90C is too hot. You need to find a way to run that chip cooler if you want to push it to 4.2 GHz or beyond.
RealTemp reporting a multi of 20.5 is usually a very good sign that Turbo mode is becoming disabled at full load. This can happen depending on your bios if you are drawing too many amps.
I wrote a separate utility called i7 Turbo that does a good job reading the multiplier. It uses high performance timers within Core CPUs and is the Intel recommended way to accurately read the multiplier. You can download and read about it here:
http://www.xtremesystems.org/forums/...&postcount=918
I'd be interested to see what it says when you are running Prime Small FFTs at your present overclock settings. Here's the latest version of RealTemp 3.20 as well:
http://www.fileden.com/files/2008/3/...alTempBeta.zip
I'm on the P6T Deluxe with the latest bios (1403). I'll try what you said. Let you know my results soon.Quote:
Originally Posted by The-Fox
I tried 205 bclock with the vcore set at 1.34 yesterday and tested it on prime95, woke up with a BSOD.
Yeah, it is. I don't know how to lower the temperature, though. I live in quite a hot country, so ambient temperature is quite high most of the time. Oh and I'm pretty sure I messed up my thermal paste. The one thermalright provided me was pretty hardened up, so I couldn't really spread it around properly. I'll probably get new thermal paste, lap my heatsink and see how the temps are after that.Quote:
Originally Posted by unclewebb
Edit: I did test the overclock settings running Prime Small FFTs. It ran stable for around 6-7 hours.
I know you were Prime stable for 6 or 7 hours. What RealTemp is showing me is that even though you were stable, Turbo mode might have been cycling on and off at full load. Hundreds of times a second the multi can drop from 21.0 to 20.0. Software that only checks to see what the multiplier is once per second might miss what's really going on with Turbo mode. That's why Intel recommends to use the high performance timers built into the Core i7 to accurately calculate the average multiplier during a 1 second sample period.
As far as I know, RealTemp is the only software that is using this method which is directly based on the Intel® Turbo Boost Technology white paper.
Next time you run Prime 95 Small FFTs up to 90C it would be interesting to see if the i7 Turbo tool can confirm that your Turbo is not fully engaged. This was an issue for some motherboards when Core i7 was first introduced and I guess it can still be an issue depending on heat and power consumption of a CPU.
If the i7 Turbo tool shows 20.50 at full load then that shows that the Turbo is only engaged 50% of the time. A reading of 20.90 would mean that it was engaged 90% of the time during the last second. CPU-Z should correctly report the first case but it might be completely missing the second case.
I'm trying to provide XS users with an accurate tool to monitor their CPU so any feedback will be appreciated by all users.
Alright. I tried out your software. Seems like turbo mode is on with my multiplier ranging from 17 to 19x on idle. Is there any other way I can get turbo mode fully disabled? Because I don't see the settings for 100% in power options. =/Quote:
Originally Posted by unclewebb
At idle when your multiplier is jumping up and down, that means that Speedstep is enabled in your bios but it has a conflict with your settings in Windows. Have a look at this thread which explains that and what you can do:
http://www.xtremesystems.org/forums/...&postcount=918
Having C1E set can also cause this problem. On some boards you need Speedstep enabled to use Turbo mode so there might not be a fix for this problem. Play with the settings to see what you can figure out.
At full load the Turbo tool should report a fairly steady value of 21.00. The last couple of digits might float around a little. If it starts reporting less than that, the Turbo is turning itself on and off because of too much heat or usually too much power consumption.
Alright. I was messing around with the bios settings and I think I managed to disable turbo mode fully. My multiplier now sits around 20.9996 to 21.0000. That's a good sign, yup? Only thing is that my temps seem to be higher now. Possibly 'cause I raised something else. I'll try to look into that. Thanks for the help, unclewebb. I'm going out in a while, so I'll run a stress test while I'm out. Let you know the good news when I get back. If there are any. ;)
With a i7-920, the normal multiplier is 20.00 and when Turbo mode is fully engaged, it should show a fairly steady 21.00 at full load.
Turbo mode is a good thing. Just make sure that it's remaining 100% engaged at full load. If the i7 Turbo tool shows your multi starting to sag below 21.00 at full load then post a screen shot comparing it to CPU-Z so users can start to understand this issue better. I have a hunch that CPU-Z might not report when Turbo mode first starts cycling on and off when running LinX or Prime 95 at high temps.
Hello everyone,
I am trying to overclock my system but I it is still not clear in my head how the various multipliers work!
I got a DFI x58 and i920 (C0/C1) and the BIOS is totally new to me (1st DFI board!)
My ram is corsair dominator 1600 with 8-8-8-24 (I got 12GB!)
Can someone (who has this board) please give me a basic starting point, like some settings I should DEFINATELY switch on/off and then go on from there?
4Ghz I will be more than happy!
Thanks alot!
New record with my week 36 920 C0 stepping, 4755 Mhz on a 2.5 year old air cooler, just 1.48 volts:
http://img22.imageshack.us/img22/6751/c0rec.jpg
This chip is on Ebay right now.
for DFI UT X58 and i7 some reading for you ;)Quote:
Originally Posted by drak3
- DFI UT X58-T3EH8 notes, findings & tips
- Intel Core i7 920 Overclocking Introduction Guide on X58
- Prime95/LinX/Super Pi 32M stability tweaks
- DFI UT X58 - tRRD, RTL, tFAW timing discussion.
- DFI Lanparty UT X58-T3EH8 LGA1366 Photos, Bios and Overclocking Information Guide
- DFI LP UT X58-T3EH8 - Bios Template
- DFI UT X58-T3EH8 - Bios Download / Change Log
- DFI LP UT X58-T3EH8 - Bios Screenshots
- Memtest86+ (v2.11)
Dear eva2000, can you tell me if the DFI UT X58 MB, with latest BIOS, unlocks completely the Xeon preocessors W35xx?Quote:
Originally Posted by eva2000
I mean that I can set memory multipliers other than 2:6 and 2:8 (i.e 2:10), that I can set Uncore frequency or multiplier and I can set QPI link speed.
I have actually an Asus R2E that locks above features with my Xeon processor and I am thinking if I would change the MB or buy a new i7 920 D0.
Quote:
Originally Posted by eva2000
Thanks alot! I will read and report back :)
don't own W35xx xeons but renegade and others have w3520 and w3540 so might check with them http://i4memory.com/f80/xeon-w3520-d...8-t3eh8-17452/ and raju with DK X58 http://www.xtremesystems.org/forums/...d.php?t=224434Quote:
Originally Posted by Brama
Good luck :)Quote:
Originally Posted by drak3
All multi's/dividers are unlocked on my 3520. It is the same as my 920 was. :up:Quote:
Originally Posted by Brama
Having read 003's rant on why what will and won't work and why, I feel I may be setting myself up for some hardship.
My 'old' 920 C0 does 200x20 (but at 1,55v) and with a QPI voltage of 1,6v it runs quite fine at 2000MHz ram (4000MHz uncore).
These voltages are of course crazy and only my nifty home made WC setup keeps it running, that's why I wanna try my luck on a D0 chip.
But now it seems I am just plain lucky reaching 2000MHz ram at all! ... I'm now not so sure I should try a D0...
Honestly it all depends on the board and RAM used. I have seen a lot fo D0's hitting 2k RAM no issue. Mine is one of them. I chose the Xeon 3520 and coupled with these Kingstons, I am having no issues with 2k RAM at 7-8-7-20-1T. I also have a nice and low VTT voltage of 1.33-1.34v. The DFI 4/28 BIOS opened up the separate adjustment of the RTL for each RAM channel. This helped things immensely. I really don't think it's luck of the draw on the chips. It's more finding a board that is setup for D0 and Elpida Hyper chips BIOS wise.Quote:
Originally Posted by tijgert
Pardon my stupidity, why's a Xeon 3520 better than a vanilla 920?
I really dig your ram :) My OCZ Reaper will do 2000@8-9-9-30-1T with standard voltage (1,65v) and I just *love* seeing me have 21GB+ Mem read in Everest (I'm like that).
(didn't push it higher yet, just tried lower Cas). Too bad the 7-7-7 Blade sticks were triple the price, or else...
I'm not sure yet what manufacturers chips are on those Reapers and what they like or dislike, but I'll give it a try and see what I can get from it before I "female dog"'n complain :)
I'm sporting a GA-EX58 Extreme b.t.w. (still F7c bios, F8b seems D0 unfriendly from what I read...)
This may not be true across the board as there ARE in fact some good D0 920's out there. You also have to factor in board/BIOS issues and ever user error. However, from what I have seen, the Xeon is easier to obtain in some cases and they are all D0. Next, they hit higher clocks with less voltage. Finally, this is my own personal experience, they require less VTT/QPI volts to hit 2000MHz RAM with tight timings. Oh and also, correct me if I'm wrong here guys, but I think the Xeon class CPU passes a different sent of QC tests that the "consumer class" 920.Quote:
Originally Posted by tijgert
They have to pass "harder" tests
is it the Xeon W3520?
Correct.
Odd... the 920 is just about priced the same as the 3520... too bad the 3520 can't be supplied by anyone over here (Holland). Oh well... 920 it is... for now...
Thanks a lot.Quote:
Originally Posted by Renegade5399
You will find a PM on I4memory.com asking what you already replied here. :) You can disregard it. ;)
If Asus will not provide a new BIOS that unlocks Xeon cpus in max two weeks, I think I will have a Xeon W3520 to sell or a DFI UT X58 to buy. ;)Quote:
Originally Posted by tijgert
My first i7 920 D0 stepping cpu and bclk wise, it has alot of potential on plain water. Although, vcore wise it's a mixed bag > http://i4memory.com/f80/first-i7-920...results-17703/ heh.
http://fileshosts.com/intel/DFI/DFI_...m_10s374ms.png
http://fileshosts.com/intel/DFI/DFI_.../cpuz_idle.png
want to see the fastest i7 920 on the planet courtesy of Windows 7 and CPUZ flakiness during Hyper Pi 8x 32M Pi test ? How about 12200Mhz - 61x200bclk LOL
http://fileshosts.com/intel/DFI/DFI_...m_8x_12200.png
200x61, ahha thats nuts. Good job EVA
Eva, dump that thing and get another one or the Xeon. Those CPU and VTT volts aren't super at all. You've seen what my Xeon does with nice low voltage. What batch is that? It looks like crap.
EDIT: Ok that reads as rude. By crap I mean it doesn't look like the best batch out there. Not knocking your results!