ga-ep45-ud3r overclocking questions?

[elitimus]

This overclock is giving me a fit for some reason. My last run of prime95 small fft failed at 7hours on the first thread, the second was still going. Here are the setting for that.

MB Intelligent Tweaker(M.I.T.)
Robust Graphics Booster ...............: Auto
CPU Clock Ratio ..........................: 9
Fine CPU Clock Ratio.....................: .0
CPU Frequency ...........................: 3.80GHZ


Clock Chip Control
Standard Clock Control
CPU Host Clock Control..................: [Enabled]
CPU Host Frequency (Mhz) ............: 400Mhz reduced trying to get stablity from previous 425 which failed at 5hrs.
PCI Express Frequency (Mhz) .........: 100

C.I.A.2 .................................:[Disabled]


Advanced Clock Control [Press Enter]
CPU Clock Drive...........................: 800mv
PCI Express Clock Drive.................: 900mv
CPU Clock Skew (ps)....................: <<<
MCH Clock Skew (ps)...................: <<<


DRAM Performance Control
Performance Enhance...................: [STANDARD]
Extreme Memory Profile (X.M.P.).....: Auto
(G)MCH Frequency Latch...............: [Auto]
System Memory Multiplier ..............: 2.66D
Memory Frequency (Mhz) ..............: 1066 1066
DRAM Timing Selectable ................: [Manual]

Standard Timing Control
CAS Latency Time........................5
tRCD ...................................5
tRP'....................................5
tRAS....................................15

Advanced Timing Control
tRRD...........................................4 Auto
tWTR..........................................4 Auto
tWR............................................13 Auto
tRFC...........................................68 Auto
tRTP...........................................4 Auto
Command Rate (CMD) ....................:0 Auto

Driving Strength Profiles
Driving Strength ............................1066

Channel A
Static tRead Value.........................:9
tRD Phase0 Adjustment...................:<<< Leave for all below as well
tRD Phase1 Adjustment...................:Auto
tRD Phase2 Adjustment .................:Auto
tRD Phase3 Adjustment..................:Auto
Trd2rd(Different Rank)....................:Auto
Twr2wr(Different Rank)...................:Auto
Twr2rd(Different Rank)...................:Auto
Trd2wr(Same/Diff Rank)..................:Auto
Dimm1 Clock Skew Control...............:Auto ps
Dimm2 Clock Skew Control...............:Auto ps

Channel B
Static tRead Value.........................:9
tRD Phase0 Adjustment...................:<<< Leave for all below as well
tRD Phase1 Adjustment...................:Auto
tRD Phase2 Adjustment .................:Auto
tRD Phase3 Adjustment..................:Auto
Trd2rd(Different Rank)....................:Auto
Twr2wr(Different Rank)...................:Auto
Twr2rd(Different Rank)...................:Auto
Trd2wr(Same/Diff Rank)..................:Auto
Dimm1 Clock Skew Control...............:Auto ps
Dimm2 Clock Skew Control...............:Auto ps

Motherboard Voltage Control
Voltage Type.………... Manual
CPU
CPU Vcore….……….........................: 1.35
CPU Termination…..... 1.200V*.......: 1.20 from 1.24 since i reduced fsb
CPU PLL…………………....1.500V*.......: 1.5

CPU Referen.…………....0.755V*.......: <<< .64% Of Vtt (Termination above) Auto Will set this correctly

CPU Reference2………,,0.800V*.......:<<< .67% Of Vtt (Termination above) Auto Will set this correctly

MCH/ICH
MCH Core…………….....1.100V...........: 1.20
MCH Reference….…….0.800V...........; <<< Leave
MCH/DRAM Ref.…......0.900V...........: <<< Leave
ICH I/O……………….....1.550V............: 1.50 factory setting
ICH Core…………...……1.100V............: 1.1 factory setting

DRAM
DRAM Voltage ……....1.800V............: 2.0
DRAM Termination .…0.900V............: <<< Leave
Channel A Reference 0.900V............: <<< Leave
Channel B Reference 0.900V............: <<< Leave

Advanced Settings
Limit CPUID Max. to 3.....................: [Disabled]
No-Execute Memory Protect............: [Enabled]
CPU Enhanced Halt (C1E)................: [Disabled]
C2/C2E State Support....................: [Disabled]
x C4/C4E State Support..................: [Disabled]
CPU Thermal Monitor 2(TM2) ...........: [Enabled]
CPU EIST Function.........................: [Disabled]
Virtualization Technology................: [Disabled] Enabled if you use Vmware/Virtual PC

Integrated Peripherals
Legacy USB Storage Detect ..............[Disabled] *Note* Must be enabled to flash from USB

So these are my 7hr stable settings. I'm really trying to leave the ram settings alone other than static tread because i just don't understand them very well. My vdroop per cpuz is 1.28-1.29 at load. My e8500is C0. Do i just need more vcore? Should i enable load line calibration? From all the posts i was thinging 3.8 would be a bit easier. HELP!

Elitimus

[elitimus]

Just a quick note. Going to try vcore of 1.36 and see how it goes today.
Elitimus

[cdelong]

1.3875v or 1.38125v.... don't be afraid scarecrow..... give 'er some juice and go back to 425fsb ;)

[elitimus]

hehehe....I may just do that. The 1.36 vcore with the above settings has gotten me 8.5hrs stable and still going as I type this This is my first OC experience so I've been babystepping trying to really grasp what does what without seeing smoke. I'm going to let this continue as I leave for work and see how far it will go. Is 8+ hours considered stable enough? Thanks for the help guys!

[Lsdmeasap]

What do you get with 1.36 set in the BIOS in windows with CPU-z for actual voltage?

And Auto ram timings may just hold you down at some point, and for sure is not going to perform the best at all

You can check and see just what Auto is actually giving you with this here (DO NOT use this to "SAVE" a setting) You can apply and test timings with this in windows but try to hard and you will just have to restart your PC >>
Tweakers.fr Memset 3.6

GREAT TOOL!!!

[elitimus]

With a 1.36 vcore in the bios I get 1.312 idle in windows and 1.280-1.296 under load in prime. I'm at 19hrs and still running. Here are my advanced timing controls per memset using auto in bios

Advanced Timing Control
tRRD...........................................4
tWTR..........................................12
tWR............................................9
tRFC...........................................68
tRTP...........................................6
Command Rate (CMD) ....................:2T

The only one that looks far off is the tWTR. Is it ok to use these settings instead of auto and change only tWTR to your previous recommendation?

Thanks
Elitimus

[Lsdmeasap]

Ya you can hard set those and then lower one at a time, you want to work to this area >>>
tRRD...........................................4 << 3
tWTR..........................................12 << 3-6
tWR............................................9 << 4-6
tRFC...........................................68 <<<48-50/ 52-62
tRTP...........................................6 << 3-5

What do you get for performance level from Auto (tRD/Static tRead Value)?

[elitimus]

Static tread value is manually set to 9 per your earlier recommendation, I don't remember what it was at auto. If you need me to I can find out. I'm just waiting till I get to the 24hr mark on prime before i shut down. 3 more hours Is there a particular thread to post stable settings for other users to go buy? I know every setup will be a little different, even with the same parts. If my final settings would be helpful to anyone I'd like to post them in the proper place since everyone who has posted here has been so helpful.

Elitimus

[Lsdmeasap]

Na, I asked because you said you was using Auto, so I thought that may apply to Static tRead as well >>>

Here are my advanced timing controls per memset using auto in bios

You can post them here, it may help someone someday if they use search, but there is not "Thread". It would be nice to make one but with so many different available setups it would likely become a cluttered mess anyway

[yakapo]

1st time overclocker here...

I have the E7400 - Gig UD3r - 4 gig Corsair PC6400 xms2 - freezer7pro

I'm currently at 3.8 ghz (400 x 9.5) @ 1.36 volts peaking at 59 degrees (orthos stable)

for some reason I can't get the fsb anywhere over 400. Do I need to bump up the fsb voltage? Is it the ram?

what's the max core voltage you guys would recommend for the cooling that I have?