no, he said:Quote:
Originally Posted by Ghigo
Quote:
no, you can only down clock, but if you increase the bclk, you ll get better OC by downclocking the mem ratio.
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no, he said:Quote:
Originally Posted by Ghigo
Quote:
no, you can only down clock, but if you increase the bclk, you ll get better OC by downclocking the mem ratio.
I tested stability with an i7 920 under Noctua :
http://www.matbe.com/images/biblio/d...0000078330.png
and screen to 4200mhz
http://www.matbe.com/images/biblio/d...0000078326.png
Now i m testing Retail 965xe under aircooling
http://www.pt1t.eu/public/X58/Core_i7_965_xe.jpg
http://www.pt1t.eu/public/X58/R2E/Wprime-32M-4200.PNG
http://www.pt1t.eu/public/X58/R2E/R2...k6_27K_air.png
@ Pt1t
can you test max stable BCLK (with lower multiplier)? :)
Thanks
Chris
202mhz on X12 and 920 on air.Quote:
Originally Posted by Chri$ch
QPI/VTT to 1.45v
IOH to 1.35v
with watercooling i think we can see 920 @ 4ghz stable (Without turbo boost activated)
ok, that is enough for me :D
btw Coolaler told me that the biggest memory multiplier is 1:7 on retail Core i7-920(940) :)
lol dude you better read the rules of this board, or i perdcit you go on vacation soon....Quote:
Originally Posted by Bellisimo
anyway... anyone else has the feeling that the 965 is waste of money this time for all none extreme ocers that use cascade or LN2?
If most of the boards can hit 200mhz bclk you get -> 4,0ghz and i think that you need super highend aircooling for that anyways or watter.
on GA EX58 extreme and Asus R2E i can get max X6 and X8 ram ratio on 920.Quote:
Originally Posted by Chri$ch
I will test on eclipse as soon i can get it.
x6 & x8 = 1:3 and 1:4?
do you have retail i7-920? ES are locked!
Does anyone know if we're going to see some cheaper boards before X-mas? Plan on upgrading but spending over €250 for a motherboard seems a bit to much :|
no , only ES 920Quote:
Originally Posted by Chri$ch
then is 1:4 the highest divider / multi ;)
offc, hamilton became WorldChamp in F1 :p:Quote:
Originally Posted by Shintai
Btw,the discussion about the FSB vs QPI hasnt been proven yet
i dont say i am right, frankly i dont know, but i havent seen any data contradicting with what i have said
Does anyone know max temperature?
Or max voltage for the CPU yet?
x264 Penryn vs. Nehalem clock-to-clock comparison:
http://i38.tinypic.com/161nvdh.png
Overall speed improvement around 40%
TjMax can be read from each Core i7 processor but when Core Temp 0.99.3 was originally released, I don't know if Intel had released that information yet. If you want to double check you can try using RealTemp 2.83 which I know reads that new information. Don't copy the new .exe into your old directory or it will use your previous TjMax values from your INI file.Quote:
Originally Posted by Caveman787
From early testing it seems that the Core i7 has more real world temperature head room available. The previous Core 2 Duo based Quads tended to lose Prime stability when well overclocked at about 70C. I've already seen screen shots of Core i7 running Prime stable at 80C and 90C like Pt1t is running in his screen shot above.
If your Core 2 Duo was running Prime stable, temperature was never an issue and it appears for Core i7, it is even less of an issue. By all means, the cooler the better but if Intel didn't think these could run reliably at 100C then they would lower the TjMax and start thermal throttling 10C or 20C sooner to prevent this.
My only concern from the screen shots so far is excessive voltage. We won't know how much is too much until more retail processors start getting used and the "my processor degraded" reports start coming in.
Edit: Thanks to coolaler for showing us what Core i7 thermal throttling looks like.
http://img377.imageshack.us/img377/2276/toohotjc7.png
http://forum.coolaler.com/showpost.p...8&postcount=12
RealTemp will log any thermal throttling episodes and it looks like core0 at 98C and core1 at 100C both hit the throttle. You definitely want to keep it below this level or else your multi will start to cycle down to 12.0 which will kill performance. Core2 and core3 both hit 93C which is still OK. No throttling has occurred on these two cores.
Good news is that it didn't crash. :up:
Now that is some nice voltage for 3.8ghz. Decent temps too, what cfm fam did you have on the noctua? Looks like air is ample for these chips :)Quote:
Originally Posted by Pt1t
Retail Core i7-920/940 and 965 XE
more pics @ XFastestQuote:
it was (on air) all full stable? Or only CPU-Z? What is max OC for work, gaming etc? 3.8Ghz?
:rofl: you actually cared to read or look at the screen?Quote:
Originally Posted by FlanK3r
he was running air -> Noctua cooler.
He ran a 920 @ 3,8 ghz with 1.294V primestable for 1:20h...
No one bothers to read anymore, they just want to see numbers or headlines like "Nehalem can't overclock." :rolleyes:Quote:
Originally Posted by Hornet331
Same thing with previous extreme edition CPU's imo...Quote:
Originally Posted by Hornet331
They (high/unlocked multi) were not needed to push the CPU's to their max on air/water.
This fan : http://www.matbe.com/images/biblio/a...0000078285.jpgQuote:
Originally Posted by villa1n
na there was quite a big difference between a Q9550 and a QX9650.Quote:
Originally Posted by Tonucci
Q9550 only have a 8,5 multi -> for 4ghz you need a fsb of 470mhz, and not many P35/X38 did that with a quad. ;)
Upon further thought you are right... Dunno what I was thinking :p:Quote:
Originally Posted by Hornet331
a bit off topic but whats the measurement of motherboard mounting holes up to skt 775 are they wider apart if so by how much...thanks