The lowest is my BIOS is 0.5v :eek:
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Auto overvolts on this board so try (my settings at 566):
CPU PLL Voltage: --> set 1.56-1.60 (1.60)
FSB Termination Voltage: --> set 1.22-1.26 (1.22)
DRAM Voltage: what your ram needs for the speed you are running
NB Voltage: AUTO --> set 1.26-1.4 (1.32)
NB GTL Reference: AUTO
SBridge Voltage: AUTO
PCIE SATA Voltage: AUTO
Heres my top overclock, still lots of room to go higher
http://www.youtube.com/watch?v=pbmJtRkSlak
Look at the temps at the end
Push that CPU Fatguy1992... C'mon 5Ghz at least... do you really need +1.5 for just 4.7Ghz under that cooling ?
I'm trying to start my pc atm, my ud3p is being a b****. Not sure if I need 1.5v, i just set it and it worked :D
Once I manage to get it to start up i'll do some more testing.
im fixing to get a modded Mach GT II for like $5XX range is that a good price ?
just did my income tax lolQuote:
had a desuperheater coil added which gives the condenser more capacity and I also had it refilled and tuned with R507 refrigerant. Its tuned for very heavy loads now with my E8600 @ 5300Mhz 1.75v it will idle around -50c and run about -44c under full load.
whats a good DDR2 Motherboard ive been looking at the Asus Maximus II Formula & P5Q Deluxe for sometime and im going to get a new mobo but the GIGABYTE also look good but idk what to get im looking to get high FSB on Q's also
I tried these settings as you recommended with little success unfortunately. Can't even boot with less then 1.45 or so at 550fsb, this really abffles my mind, since so many report doing this at around 1.32 or so. I jacked it up to nb 1.52v and still seems aunstable. Any other ideas ??? I'm running bios 1702 if that makes any difference.
Please fill out this template and we'll see what we can try.
AI Overclock tuner: Manual
CPU Ratio Setting:
FSB Strap to North Bridge: AUTO
FSB Frequency:
PCI-E Frequency:
DRAM Frequency:
DRAM CLK Skew on Channel A1: AUTO
DRAM CLK Skew on Channel A2: AUTO
DRAM CLK Skew on Channel B1: AUTO
DRAM CLK Skew on Channel B2: AUTO
DRAM Timing Control: Manual
1st Information :
CAS# Latency:
DRAM RAS# to CAS# Delay:
DRAM RAS# Precharge:
DRAM RAS# Activate to Precharge:
RAS# to RAS# Delay : AUTO
Row Refresh Cycle Time: AUTO
Write Recovery Time: AUTO
Read to Precharge Time: AUTO
2nd Information :
READ to WRITE Delay (S/D): AUTO
Write to Read Delay (S): AUTO
WRITE to READ Delay (D): AUTO
READ to READ Delay (S): AUTO
READ to READ Delay (D): AUTO
WRITE to WRITE Delay (S): AUTO
WRITE to WRITE Delay (D): AUTO
3rd Information :
WRITE to PRE Delay: AUTO
READ to PRE Delay: AUTO
PRE to PRE Delay: AUTO
ALL PRE to ACT Delay: AUTO
ALL PRE to REF Delay: AUTO
DRAM Static Read Control: AUTO
DRAM Read Training: AUTO
MEM. OC Charger: AUTO
AI Clock Twister: AUTO
AI Transaction Booster: Manual
Common Performance Level []
Pull-In of CHA PH1: DISABLED
Pull-In of CHA PH2: DISABLED
Pull-In of CHA PH3: DISABLED
Pull-In of CHA PH4: DISABLED
Pull-In of CHB PH1: DISABLED
Pull-In of CHB PH2: DISABLED
Pull-In of CHB PH3: DISABLED
Pull-In of CHB PH4: DISABLED
CPU Voltage:
CPU GTL Voltage Reference (0/2): AUTO
CPU GTL Voltage Reference (1/3): AUTO
CPU PLL Voltage:
FSB Termination Voltage:
DRAM Voltage:
NB Voltage:
NB GTL Reference: AUTO
SBridge Voltage:
PCIE SATA Voltage:
Load Line Calibration:
CPU Spread Spectrum:
PCIE Spread Spectrum:
CPU Clock Skew : Auto
NB Clock Skew : Auto
CPU Margin Enhancement: Performance Level
Don't keep torturing these chips. Listen to Lee. He keeps telling you guys not to keep torturing these chips like this. Run IBT a couple of times, then just run Orthos Blend/Memtest, and just *use* the computer and enjoy it.
Running these stress tests (that stress the CPU far more than anything else) repeatedly, especially IBT and sometimes prime small fft on hours/days on end, is not really healthy for these chips when they're pushed too hard. Your chip might be degrading from it. Seen it happen plenty enough. One guy degraded from 3.6 to 3.4 ghz (needed higher vcore--1.34 vs 1.32v) for 3.6 after a few weeks of repeated IBT's. And 1.32v isn't even that high.
Yes it's possible for chips to degrade even at lower voltages.
All chips respond differently, so what may happen to 1 person might not happen to someone else. Board timings/settings may play a part too.
There have been cases where it was the northbridge going south, or RAM, but memtest would pick that up (you'd probably need something a bit tougher on the NB to pick up problems there, like Orthos/prime Blend).
Ok here are my settings as seen in the bios. I can't even boot up without less then 1.42 NB and can't get into windows with less then 1.52, I got as close as the windows logo and scroll thing at the begining at 1.5 but then it crashed.
AI Overclock tuner: Manual
CPU Ratio Setting: 6
FSB Strap to North Bridge: 400
FSB Frequency: 550
PCI-E Frequency: 100
DRAM Frequency: 1100
DRAM CLK Skew on Channel A1: AUTO
DRAM CLK Skew on Channel A2: AUTO
DRAM CLK Skew on Channel B1: AUTO
DRAM CLK Skew on Channel B2: AUTO
DRAM Timing Control: Manual
1st Information :
CAS# Latency: 5
DRAM RAS# to CAS# Delay:5
DRAM RAS# Precharge: 5
DRAM RAS# Activate to Precharge:15
RAS# to RAS# Delay : AUTO
Row Refresh Cycle Time: AUTO
Write Recovery Time: AUTO
Read to Precharge Time: AUTO
2nd Information :
READ to WRITE Delay (S/D): AUTO
Write to Read Delay (S): AUTO
WRITE to READ Delay (D): AUTO
READ to READ Delay (S): AUTO
READ to READ Delay (D): AUTO
WRITE to WRITE Delay (S): AUTO
WRITE to WRITE Delay (D): AUTO
3rd Information :
WRITE to PRE Delay: AUTO
READ to PRE Delay: AUTO
PRE to PRE Delay: AUTO
ALL PRE to ACT Delay: AUTO
ALL PRE to REF Delay: AUTO
DRAM Static Read Control: AUTO
DRAM Read Training: AUTO
MEM. OC Charger: AUTO
AI Clock Twister: AUTO
AI Transaction Booster: AUTO
4th Information :
CPU Voltage: 1.325
CPU GTL Voltage Reference (0/2): AUTO\also tried .630
CPU GTL Voltage Reference (1/3): AUTO\also tried .670
CPU PLL Voltage: 1.54 works best so far\also tried 1.56 and 1.58
FSB Termination Voltage: 1.26 don't really know what this does, seems to work best on auto.
DRAM Voltage: 2.10
NB Voltage: 1.52 boots me into windows then crashes, memory error. Will boot with less but not into windows.
NB GTL Reference: AUTO\also tried .630
SBridge Voltage: auto
PCIE SATA Voltage: auto
Load Line Calibration: disabled
CPU Spread Spectrum: disabled
PCIE Spread Spectrum: disabled
CPU Clock Skew : Auto
NB Clock Skew : Auto
CPU Margin Enhancement: Performance Level
Ok I tried those settings as well and still nothing, getting errors using Vistas mem check. I did try something else though and found interesting results. I went back to my old settings I used with an E6320 which I had hummin along @ 3.22 Ghz till recently, I used exactly the same MB settings and just changed the Cpu Voltage and NB V which btw is now at 1.26 at 458 fsb, so there's something else causing me to fail at 550?? I don't know if this helps, my MB Rev is 1.03G and bios currently used is 1702, I can't remeber if it's the modded one any more. I would really like to get the higher fsb, but these settings seem to be working ok right now. If anyone has any more suggestions on how I can get a higher fsb I would greatly appreciate it, my ram can't do much more then 1100 mhz though.
AI Overclock tuner: Manual
CPU Ratio Setting: 9.5
FSB Strap to North Bridge: 400
FSB Frequency: 458
PCI-E Frequency: 100
DRAM Frequency: 1100
DRAM CLK Skew on Channel A1: AUTO
DRAM CLK Skew on Channel A2: AUTO
DRAM CLK Skew on Channel B1: AUTO
DRAM CLK Skew on Channel B2: AUTO
DRAM Timing Control: Manual
1st Information :
CAS# Latency: 5
DRAM RAS# to CAS# Delay:5
DRAM RAS# Precharge: 5
DRAM RAS# Activate to Precharge:15
RAS# to RAS# Delay : AUTO
Row Refresh Cycle Time: AUTO
Write Recovery Time: AUTO
Read to Precharge Time: AUTO
2nd Information :
READ to WRITE Delay (S/D): AUTO
Write to Read Delay (S): AUTO
WRITE to READ Delay (D): AUTO
READ to READ Delay (S): AUTO
READ to READ Delay (D): AUTO
WRITE to WRITE Delay (S): AUTO
WRITE to WRITE Delay (D): AUTO
3rd Information :
WRITE to PRE Delay: AUTO
READ to PRE Delay: AUTO
PRE to PRE Delay: AUTO
ALL PRE to ACT Delay: AUTO
ALL PRE to REF Delay: AUTO
DRAM Static Read Control: AUTO
DRAM Read Training: AUTO
MEM. OC Charger: AUTO
AI Clock Twister: AUTO
AI Transaction Booster: Manual
Performance Level : 8
Everything Disabled
4th Information :
CPU Voltage: 1.33125
CPU GTL Voltage Reference (0/2): .630
CPU GTL Voltage Reference (1/3): .670
CPU PLL Voltage: 1.54
FSB Termination Voltage: auto
DRAM Voltage: 2.10
NB Voltage: 1.26
NB GTL Reference: AUTO
SBridge Voltage: auto
PCIE SATA Voltage: auto
Load Line Calibration: Enabled : Seemed to really help lower voltages and stabilize things in windows. Had to run over 1.375 in bios with this off because of V droop.
CPU Spread Spectrum: disabled
PCIE Spread Spectrum: disabled
CPU Clock Skew : Auto
NB Clock Skew : Auto
CPU Margin Enhancement: Performance Level
here are my results on my DFI P45-T2RS PLUS 10/03/08, E8400 CO With TRUE120, G.Skill 4GB Pi 800MHZ
http://img21.imageshack.us/img21/8868/4613mhzzy9.jpg
http://img13.imageshack.us/img13/3121/10316sfs9.jpg
lol i just give him Vcore and i don't care if its too much :D
and 24/7 with ASUS P5Q Pro 1406 on 1.336V (for IBT :down:)
http://img10.imageshack.us/img10/889...ableibtin9.png
and pass 5 hours OCCT on 1.328V.
i see that you are post some bios setting, i can give my too if somebody want.
PakaPaka
Good job with old C0 :up:
tanks.
but the CO stepping is old? the EO stepping is old (?)
CO is the older stepping, overal EO clocks better with lower volts... I hope 1406 bios will give better results mate... I did 500FSB out of the box with an E7400 with the 1406 bios
oh ok i remember it wrong.
yes, i hope so too :)
tank you for all your help.
Wow, you guys are doing some amazing things with these 84/8500 CPUs. I have the C0 8500 and I can barely hit 4Ghz at default voltage on air using the 790Ultra chipset. No matter how many volts I throw at the CPU, I cannot get it stable past 4Ghz. I have the Corsair 1800Mhz DDR3 too so I do not know what my problems are.
Well, I got myself an E8400 E0 Q842A247 from my local Micro Center. A search on it turns up nothing. Not sure if this is a good OCing batch or not.
for the 4613mhz i don't have the settings, but for the 4054mhz stable 24/7 i do.
those are the setting:
Ai Overclock Tuner : Manual
CPU Ratio Setting : 9
FSB Frequency : 450
PCIE Frequency: 100
FSB Strap to North Bridge : Auto
DRAM Frequency: 901MHZ
DRAM Timing Control: 5-5-5-15
DRAM Static Read Control: Disabled
Dram Read Training : Disabled
MEM OC Charger : Disabled
Ai Clock Twister : Auto
Ai Transaction Booster : Auto
CPU Voltage : 1.3500V in bios, 1.366V at load, 1.328V at idle.
CPU GTL Reference: Auto
CPU PLL Voltage : 1.52
FSB Termination Voltage: 1.26
DRAM Voltage : 2.10
NB Voltage : Auto
PCIE Sata Voltage: Auto
Load Line Calabration : Enabled
CPU Sread Spectrum : Disabled
PCIE Spread Spectrum : Disabled
CPU Clock Skew: Auto
its for IBT 5 run 100% stable, at OCCT pass 5 hours with Vcore 1.328V at load.
Thx that's pretty good OC I think. My E8500 is very close to that @ 4.34 with 1.3125V bios and 1.304 in Windows. All other settings are almost identical as yours. What sort of Temps are you getting ?? I'm on water and apparently I hit 54 C, not likely but that what core temp says. Have you tried a higher fsb ??? I could really use some settings for that if you have those available. If anyone else has some useful information please suggest away.:up: