out of curiosity, my ram is g.skill ddr3 1600 rated. What timings can I expect in that 1700mhz range? 8-8-8-24 is current. Could 7-8-7-20 be done?
Printable View
out of curiosity, my ram is g.skill ddr3 1600 rated. What timings can I expect in that 1700mhz range? 8-8-8-24 is current. Could 7-8-7-20 be done?
What model # is it?
You may be able to at 1700Mhz, but you may need more Vdimm or QPI/Vtt then you are using now, more uncore could help too.
See my sigQuote:
Originally Posted by antiacid
I'm using G.Skill Pi series F3-12800CL7T-6GBPI 1600mhz @ 1720mhz 7-8-7-24-1t @ 1.5v (I bump it to 1.56v but not really necessary at that speed)
can anyone tell me what's "special" about this "jz-bios"?
also: anyone know what's changed in the rev2 ud7?
thanks
I spent a lot of time last night working on overclocking. I was able to get to 210 BCLK, stable, by lowering the uncore multiplier from 16 to 15, and running at 1.34 Vtt and an 8x memory multiplier. I backed off of the BCLK to 200 so that I could run a 10x multiplier for memory and I set the uncore multiplier to 19x and I was able to run stable at 1.3 Vtt. Upping the CPU multiplier to 20 and the VCore to 1.4V gave me a solid 4GHz clock with a 200 BCLK. However, trying to go to 4.2 GHz failed, even with pumping the Vcore up to 1.4V.Quote:
Originally Posted by Sam_oslo
So I tried dropping the BCLK to 160 and using a cpu mult of 25 to get to 4 GHz. Again very stable at 1.35V Vcore. But again, going up to a cpu mult of 26 for 4.16GHz failed miserably.
I'm now playing around with voltages to see how low I can get them while running 25x160 and it's looking like 1.3375V Vcore with 1.28 Vtt is stable or close to it at 4GHz. So why can't I get a stable overclock of greater than 4GHz? Increasing Vcore from 1.3375 to 1.4V doesn't seem to allow me to increase the multiplier to 26. Increasing Vtt from 1.28 to 1.34 doesn't seem to let me increase the multiplier. My temps are in the 20's at idle and in the 50's at full load for extended burn. I've never gotten a core over 61 degrees with anything I've tried.
Maybe I need to adjust Vdroop? I'm currently running load line at standard, could that be what's causing me to hit a wall at 4GHz?
Alternately, I could drop the BCLK back to 133 and up the multiplier and see if that helps at all. But previous experiments didn't seem to indicate that this would work.
Is there something I'm missing for overclocking over 4GHz when I have plenty of room to increase Vcore, Vtt, and thermals? Increasing voltages doesn't seem to make any difference in stability at all at this point.
This is my 4GHz overclock.
http://img.photobucket.com/albums/v4...k/Best4GHz.jpg
http://valid.canardpc.com/show_oc.php?id=1210431
I have Vcore at 1.3375V, VTT at 1.280V, IoH core set to auto, mem multiplier set to x10, uncore set to x19, load line set to standard, cpu multiplier set to x25, BCLK set to 160.
I can't seem to go over 4GHz cpu and have stability. Any ideas?
just a quick reminder for everyone that mounting and the amount of cooling paste can have a significant impact on CPU temperature...
I just remounted my stock Intel heatsink because the CPU became 98°C during prime95
Now it becomes 82°C... A 16°C difference!!
I think my mistake was bad mounting, adding a pit of extra paste (since it didn't touch everywhere), remounting (again bad), adding more paste, etc...
I now cleaned it, put a "little" paste on it again and remounted the cooler with an enormous amount of pressure (I was scared of braking the cpu / mobo)
Was anyone else surprised by the amount of pressure required to mount the stock Intel heatsink decently?
It is still hot now, but not so bad for the stock Intel heatsink and watercooling is on my "wanted-list" :)
rev2 ud7-:eek:Quote:
Originally Posted by Mastakilla
Source?:confused:
I might have misunderstood the following post:Quote:
Originally Posted by stasio
Quote:
Originally Posted by boldenc
so far only the X58A-UD5 and the X58A-UD3 have moved to Rev 2.0
Not sure what the changes are but IMO has to do with new 6 core chips
great!
nothing for me then :)
any idea about the jz-bios?
I dont really understand all that German on the homepage ;)
That greedy image hosting wants more money, so I can't see your picture. But from what i can see on your validation, maybe your IMC/Uncore is having problem with 12MB RAM and x19 Uncore.Quote:
Originally Posted by Bolas
First try x16 Uncore and x8 MEM to see if you can get a better OC. In case, you can then try x10 MEM with the same x16 Uncore.
Quote:
Originally Posted by Bolas
Try using 168x25 for 4.2Ghz, i7's don't like even CPU multipliers, so that may be why you are having such a tough time
is it normal that prime95 (blend) gets my CPU (i7 920) 2-3°C hotter than IntelBurnTest (Very High Stress Level)?
I thought that might be it, but trying 21 x 400 didn't work and that was an odd mult, vs 20 x 400 that did work.Quote:
Originally Posted by Lsdmeasap
I'm going to end up coughing up the $30/year for it, I suspect. Blah.Quote:
Originally Posted by Sam_oslo
So you are suggesting trying a lower uncore multiplier to see if that will result in a stable system at higher cpu multipliers? Am I understanding you correctly?
Fixed greedy image hosting. They took my money!! But now I can see pics again.Quote:
Originally Posted by Sam_oslo
Then maybe you just are not finding the right voltages, or are using the wrong uncore multi?Quote:
Originally Posted by Bolas
I'll try fiddling with the uncore a bit more and trying out different numbers, I haven't played around with that much yet. I'll also check if overclockers.net has any suggestions.Quote:
Originally Posted by Lsdmeasap
I can help you with your settings, post them in a template and I will advise back
That would be fantastic. I won't be able to look up my settings until after memorial day weekend, but when I do, I'll post them all.Quote:
Originally Posted by Lsdmeasap
This is what I remember. 8-8-8-24 1600MHz memory timings (XMP profile 1 for Corsair Dominator 12 MB kit). I might not have remembered everything correctly but it should be close. I'll post the actual things when I get home on Monday night.Quote:
Originally Posted by Lsdmeasap
Code:Advanced CPU Features:
CPU Clock Ratio ................................ [25 ]
Intel(R) Turbo Boost Tech ...................... [DISABLED]
CPU Cores Enabled .............................. [All]
CPU Multi Threading .............................[ENABLED]
CPU Enhanced Halt (C1E) ........................ [DISABLED]
C3/C6/C7 State Support ......................... [DISABLED]
CPU Thermal Monitor ............................ [DISABLED]
CPU EIST Function .............................. [DISABLED]
Virtualization Technology ...................... [DISABLED]
Bi-Directional PROCHOT ......................... [ENABLED]
Uncore & QPI Features:
QPI Link Speed ..............................[44]
Uncore Frequency ............................[19]
Isonchronous Frequency ......................[AUTO]
Standard Clock Control:
Base Clock (BCLK) Control .......................... [ENABLED]
BCLK Frequency (MHz) ................................[160]
PCI Express Frequency (MHz) ........................ [AUTO]
C.I.A.2........................................... .. [AUTO]
Advanced Clock Control:
CPU Clock Drive ..............................[AUTO]
PCI Express Clock Drive ................... [AUTO]
CPU Clock Skew ............................. [AUTO]
IOH Clock Skew ............................. [AUTO]
Advanced DRAM Features:
Performance Enhance ...................... [STANDARD]
Extreme Memory Profile (X.M.P) ........... [PROFILE1]
System Memory Multiplier (SPD) ........... [10 ]
DRAM Timing Selectable (SPD) ............. [AUTO]
Channel A + B + C
Channel A Timing Settings:
##Channel A Standard Timing Control##
CAS Latency Time ......................[8]
tRCD ..................................[]
tRP ...................................[]
tRAS ..................................[]
CR.....................................[]
B2B.....................................[]
Advanced Voltage Control:
CPU Intel Core i7 920 D0 Stepping
Load Line Calibration ................. [STANDARD]
CPU Vcore ..............................[1.3375]
QPI/VTT Voltage 1.150v .................[1.280]
CPU PLL 1.800v .........................[1.80]
PCIE 1.500v ...........................[AUTO]
QPI PLL 1.100v ........................[AUTO]
IOH Core 1.100v .......................[1.12]
ICH I/O 1.500v ........................[AUTO]
ICH Core 1.1v .........................[AUTO]
DRAM
DRAM Voltage 1.500v .............. [AUTO]
DRAM Termination 0.750v.......... [AUTO]
Ch-A Data VRef. 0.750v ...........[AUTO]
Ch-B Data VRef. 0.750v ...........[AUTO]
Ch-C Data VRef. 0.750v ...........[AUTO]
Ch-A Address VRef. 0.750v ........[AUTO]
Ch-B Address VRef. 0.750v ........[AUTO]
Ch-C Address VRef. 0.750v ........[AUTO]
I think I did try lowering the QPI link speed to 36x instead of 44x, but that might be worth another try.
Any tips for hitting DDR3-2100+ on this board? I read a review over at Hardware Canucks and the writer stated he wasn't able to clock the G.Skill Trident 2000 kit that high on the UD7, while he was able to do so on an Asus Rampage II Extreme. I'm having a tough time trying to clock my Patriot Viper II 6GB Elpida Hyper-based kit to 2100 9-9-9. I've tried VTT as high as 1.60V and VDIMM up to 1.76V (currently using 175BCLK and the 2:12 divider). I even went out and got another CPU thinking maybe my 920's IMC wasn't up to snuff, but the 930's doesn't seem much better.
Why don't you try going for a lower cpu overclock and see if the ram can actually go that high?Quote:
Originally Posted by Shiranui Gen-An
Also, 1.76vdimm = dead ram soon. I recommend not going higher than 1.66-1.68 for 24/7.
BTW, you do know that you'd get more out of your machine with lower clocked ram and higher clocked cpu than the opposite, right?