how to OC
E8500 C0 version... wanna go to da max Ghz
P45 UD3R
1066MHz corsair Dom 2Gb
700watt
how to OC
E8500 C0 version... wanna go to da max Ghz
P45 UD3R
1066MHz corsair Dom 2Gb
700watt
NB volts are a little too much, try 1.4 or less. Once you've done that, try raising the MCH ref a notch at a time, you will also need to do the same for CPU ref. Skews are also important. The 2nd temperature is system temperature, not NB.Quote:
Originally Posted by Gameman
Yeah, I was trying to see what kind of volts were needed purely for fsb, but it's nice to see a lower PL ability on this board than the MIIF at 1:1. I assume pull-ins don't work when at pl9, I tried a couple of combos, but nothing seemed to allow me to post properly. When at PL10, I only needed 1.26v for 500fsb large fft stability, but for PL9, I think I'm looking at 1.34 or 1.36, still better than my MIIF :DQuote:
Originally Posted by Hoss331
just got a new E8400....has the worst VID I've ever had on a wolfdale of 1.2625V!!
However, it's the best clocking E8400 I've ever had. I once had an E8500 that clocked as well as this but never an E8400..... I only have a 92mm Scythe cooler and so far this is stable for a few hours gaming...
http://img690.imageshack.us/img690/4807/cachememg.png
Nice! :up: Post an ET6 shot and/or some BIOS settings. Thanks!Quote:
Originally Posted by gurusan
PHP Code:Robust Graphics Booster....................[Auto]
CPU Clock Ratio............................[ 9x
Fine CPU Clock Ratio.......................[+0]
CPU Frequency..............................[ 4608]
******Clock Chip Control******
CPU Host Clock Control.....................[Enabled]
CPU Host Frequency (Mhz)...................[ 512]
PCI Express Frequency (Mhz)................[103]
C.I.A 2....................................[Disabled]
CPU Clock Drive............................[ 800mv]
PCI Express Clock Drive....................[ 900mv]
CPU Clock Skew.............................[ 0ps]
MCH Clock Skew.............................[ 0ps]
******DRAM Performance Control******
Performance Enhance........................[Standard]
(G) MCH Frequency Latch....................[400]
System Memory Multipler....................[3.2B]
Memory Frequency 1066......................[1707]
DRAM Timing Selectable.....................[Manual]
CAS Latency Time[7]........................[7]
tRCD[7]....................................[7]
tRP[7].....................................[7]
tRAS[16]...................................[20]
******Advanced Timing Control******
All on Auto except:
read training disabled
Static tRead Value (Performance Level) = 9
TRFC = 72
******Motherboard Voltage Control******
Load-Line Calibration......................[Enabled]
CPU Vcore [1.20000]...............[1.4125]
CPU Termination [1.200].................[1.8]
CPU PLL [1.550].................[1.570]
CPU Reference [0.805].................[0.810]
MCH Core [1.100].................[1.38]
MCH Reference [0.760].................[0.79]
MCH/DRAM Reference .......................[.93]
ICH I/O [1.50].................[1.50]
ICH Core [1.100].................[1.100]
DRAM Voltage [1.500].................[1.98]
DRAM Termination [0.750].................[.93]
channel refs all .93
some more playing :D
http://img85.imageshack.us/img85/3471/capturezs.png
CPU Term @ 1.8 :confused: Wow!Quote:
Originally Posted by gurusan
Sorry...that should be 1.28V !! lol.
did some more testing and it seems the sweet spot on this chip is 4.725GHz with 1.408V. It fails linX but is totally stable so far gaming and doing a quick CFD simulation
You do realize that the 3:5 (3.33) divider is bugged and that its really only (3.00) 1575.Quote:
Originally Posted by gurusan
How do I verify that?
1.28v...That sounds more like it! Thanks for you settings.Quote:
Originally Posted by gurusan
Check the bandwidth between the dividers. :up:Quote:
Originally Posted by gurusan
Is that on all EP45T boards? I have an EP45C also, same there?Quote:
Originally Posted by Hoss331
well that would explain why I've been disappointed with my bandwidth :(
P45s in general, not sure on other chipsets though.Quote:
Originally Posted by bluestang
that's a real pain in the ass. the 4.00 divider is too much to handle on the p45 chipset and the 3.00 is too little! :(
Just have to make do with tighter timings I guess
Theres still 3.20B. :up:
I can't seem to have much luck over 500FSB though with 3.20B
heres a good thread about the issue w/3:5 divider
3:5 divider on X38/P35/X48/P45 is broken, is 2:3 in reality on 400 strap
Is the 2.4b which I'm using, a good strap? Just curious I seem, to not have any issues with it so.. Still curious though.
yes,333 strap 2.40B is 5:6 divider which i found to be the best for me
RAM ratios:for the UD3P
200 strap: 3:4, 3:5, 1:2
266 strap: 4:5, 2:3, 1:2
333 strap: 1:1, 5:6, 5:8, 1:2
400 strap: 1:1, 3:4, 2:3
Have managed to get the 3.20B strap working at higher FSB.
http://img37.imageshack.us/img37/6493/cachememc.png
Hi all,
I have my E8400 stable @4.2 but am having some problems getting my DDR3 stable at 1400.
My ram: http://www.ocztechnology.com/product...atinum_edition
I am using the 2.66D strap, is this a good choice or does it matter? I am narrowing the problem down to the boards auto trfc and Trd settings. Getting progresively longer blend runs with trd set progressively lower. Got 4 hours blend at trd 12, trying 11 now. Also have Trfc down to 72 from auto at 78. Is 11 low or high for DDR3 at 1400?
Thanks for any input.
I say drop your FSB down to 500 and use CPU multi 8 or 8.5. Then set your Latch to Auto and use the 3.20B RAM multi for 1600 MHz. Might be able to drop you NB volts then. Try trd (Perf Level) of 8 or 9. MCH ref might be giving you issues also.Quote:
Originally Posted by Songok
Thanks for the suggestion bluestang, much appreciated, am blending now at 500x8 with 3.2B. I have left my memory timings very loose for first run.Quote:
Originally Posted by bluestang
My easytune readout for 4.2 stable with ram at 1050 is below. Is there much benefit to having ram at 1600 over 1050(1:1 FSB:DRAM) with low timings? i know my ram was undercloceked when at 1050 but i am having a tough time gettin blend stable at anything but 1:1.
http://i104.photobucket.com/albums/m.../Easytune1.png