ASUS Maximus II Formula - new P45 king?

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10-09-2008, 04:58 AM
CryptiK

Ah ok, well 1.96v is enough for mine to do 1113 MHz 5-5-5-12-3-30-6-3 and the rest on auto. I can get 1200 stable on 2.1v load. Try to not exceed 2.1v for 24/7 use and cool them with a fan too.
10-09-2008, 05:07 AM
radaja

@cryptik, thanks ill give it a try
10-09-2008, 05:33 AM
KURTZ

thx Cryptik, i've also saw an interesting result by angkies ... 580fsb and also 600fsb on air cooling ... really impressive!

what are the angkies' settings?
10-09-2008, 05:37 AM
CryptiK

Not sure TBH, but Solarfall hit 607 FSB bench stable, and was using ~ 1.3v vFSB and ~1.38v vNB. For total stability though I'd say closer to 1.5v vNB would be needed for 600 FSB. I have seen a M2F hit 670 FSB with the CPU on LN2 or DICE.
10-09-2008, 05:59 AM
radaja

@cryptik, tried your settings and it failed to load windows.but any way heres mem settings on auto,i just upped fsb mem-5/6 pl8.icouldnt get it to boot with same fsb 5/6 w/g.skills.are ozc gold pc-8800 any good?http://i436.photobucket.com/albums/q...cs/newone3.jpg
10-09-2008, 06:35 AM
RandomSuffix

Thanks for the reply CryptiK, I've not actually got the board yet or I'd test myself. I'm just wondering if I'm going to have a decent amount of control over them from the board itself, or if I'm going to have to splash out on a controller.
10-09-2008, 06:41 AM
KURTZ

Quote:

Originally Posted by CryptiK

Not sure TBH, but Solarfall hit 607 FSB bench stable, and was using ~ 1.3v vFSB and ~1.38v vNB. For total stability though I'd say closer to 1.5v vNB would be needed for 600 FSB. I have seen a M2F hit 670 FSB with the CPU on LN2 or DICE.

thx mate :) however i'm wondering about the voltages: 1.5 over the NB isn't too much? also what about the vFSB and PLL?
10-09-2008, 08:27 AM
Harsha

Hi Cryptik,
Well this is the point I ask for help. I got a Q9550 E0 step (1.18xx VID), put it into the M2F and put in all 8GB (2GB x 4) Mushkin RAM (996580) onto the board with a vanilla 8800GT 512MB...powered up...and NO BOOT. Pulled out 2 sticks of RAM from the white sockets and it POSTED... :hitself:

I swapped the 2 sticks I pulled out into the blue sockets and posted again, so I guess all 4 sticks are alive... :rotf:

Vista 64 SP1 loaded onto the 300GB Velociraptor in less than 20 mins :shocked:

Now could you point me in the direction to my settings; I know you probably have given them before to someone else to get up and running with 8GB of DDR2 but I've started to trawl through from page 1. I'm not sure if I should be trying to get my OC up before getting the 8Gb stable or try to get the CPU up to speed and then add the other 4GB. Any advice at all would be welcome :bows:
10-09-2008, 08:41 AM
Guacamole

Okay Cryptik I have spent the last 3 hours reading all of the posts and I was just wondering if you can post some 24/7 settings of your rock solid E8400 OC??

I mean with the best acceptable bandwith and processor OC around 4.0...

I am running E8400 CO with (4X1GB) Crucial 1066 D9 and I am plugging in all these settings I can make it into the OS prime for awhile but when I reboot my computer shuts down and hangs....

I was just thinking you have some settings I could plugin and give it a run I saw the posts from earlier page 43 and I can run that set up fine but as soon as I introduce any memory performance I hang or have to reset the CMOS...

Thanks or any settings you might have.....

P.S. Forget my signature this is my back up rig I am referring to Asus Maximus II Formula, E8400, D9 Crucial 1066
10-09-2008, 09:04 AM
Guacamole

Quote:

Originally Posted by SiGfever

Hey guys, here is where I am right now and have reached a stumbling block on moving forward. Any suggestions? I fail Prime95 "Blend" after several minutes beyond these settings. This is stable.

PHP Code:

Ai Overclock Tuner: Manual OC From CPU Level Up: Auto Ratio CMOS Setting: 8 FSB Frequency: 460 CPU Clock Skew: Normal NB Clock Skew: Normal FSB Strap to North Bridge: 333 DRAM Frequency: DDR2-1105MHz DRAM CLK Skew on Channel A1: Advance 300ps DRAM CLK Skew on Channel A2: Advance 300ps DRAM CLK Skew on Channel B1: Advance 300ps DRAM CLK Skew on Channel B2: Advance 300ps DRAM Timing Control: Manual 1st Information: CAS# Latency: 5 DRAM Clocks DRAM RAS# to CAS# Delay: 5 DRAM Clocks DRAM RAS# Precharge: 5 DRAM Clocks DRAM RAS# Activate to Precharge: 15 DRAM Clocks RAS# to RAS# Delay: Auto Row Refresh Recycle Time: 55 DRAM Clocks 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: Enabled DRAM Read Training: Auto MEM. OC Charger: Auto Ai Clock Twister: Stronger Ai Transaction Booster: Manual Common Performance Level: 8 Pull-in of CHA PH1: Disabled Pull-in of CHA PH2: Disabled Pull-in of CHA PH3: Disabled Pull-in of CHB PH1: Disabled Pull-in of CHB PH2: Disabled Pull-in of CHB PH3: Disabled PCIE Frequency: 101 CPU Voltage: 1.4250 CPU PLL Voltage: 1.50 FSB Termination Voltage: 1.33850 DRAM Voltage: 2.14450 North Bridge Voltage: 1.39150 South Bridge 1.5 Voltage: 1.50 South Bridge 1.1 Voltage: 1.10 CPU GTL Reference (0): +20mv CPU GTL Reference (1):-15mv CPU GTL Reference (2): +20mv CPU GTL Reference (3): -15mv NB GTL Reference: Auto DDR2 ChA Reference Voltage: Auto DDR2 ChB Reference Voltage: Auto North Bridge DDR Reference: Auto CPU Configuration: Ratio CMOS Setting: 8 C1E Support: Disabled Max CPUID Value Limit: Disabled Intel Virtualization Tech: Disabled CPU TM Function: Disabled Execute Disable Bit: Disabled Load-Line Calibration: Enabled CPU Spread Spectrum: Disabled PCIE Spread Spectrum: Disabled

Thanks alot these settings have helped me a bunch I really appreciate all the input...:up::up:
10-09-2008, 10:12 AM
KURTZ

@ Cryptik (and others) just few questions:

1) what's the max voltage that i can give to the NB without any trouble for the mobo?
2) same question for the PLL

thx
10-09-2008, 01:23 PM
Grnfinger

Quote:

Originally Posted by SiGfever

Hey guys, here is where I am right now and have reached a stumbling block on moving forward. Any suggestions? I fail Prime95 "Blend" after several minutes beyond these settings. This is stable.

This should get those G.Skills beyond 1105MHz with decent bandwidth.
Dont be affraid to take them to 2.20 volts, they can handle it with decent cooling.
Almost have 1200MHz stable, will post my final settings for that once it settles down

Dram Clock Skew CH1 A1 : Advanced 350ps
DRAM Clock Skew CH1 A2 : Normal
Dram Clock Skew CH1 B1 : Advanced 350ps
Dram Clock Skew CH1 B2 : Normal

DRAM Timing Control: Manual
CAS# Latency : 5
RAS# to CAS# Delay : 5
RAS# Precharge : 5
RAS# ActivateTime : 18
RAS# to RAS# Delay : 5
Row Refresh Cycle Time : 65
Write Recovery Time : 6
Read to Precharge Time : 5

Read to Write Delay (S/D) : 10
Write to Read Delay (S) : 4
Write to Read Delay (D) : 5
Read to Read Delay (S) : 6
Read to Read Delay (D) : 6
Write to Write Delay (S) : 5
Write to Write Delay (D) : 6

Write to PRE Delay : 16
Read to PRE Delay : 6
PRE to PRE Delay : 1
ALL PRE to ACT Delay : 6
ALL PRE to REF Delay : 6

DRAM Static Read Control: Disabled
Dram Read Training : Disabled
MEM OC Charger : Enabled
Ai Clock Twister : Moderate
Transaction Booster : Manual

Common Performance Level [8]
10-09-2008, 01:46 PM
electricl

Thanks Grin for the suggestions, my system is now stable and Ive got some decent bandwidth.
Do you think its possible to do 4GHz? Everyting Ive tried so far failed prime/intelburn within seconds.
10-09-2008, 01:51 PM
Grnfinger

Quote:

Originally Posted by electricl

Thanks Grin for the suggestions, my system is now stable and Ive got some decent bandwidth.
Do you think its possible to do 4GHz? Everyting Ive tried so far failed prime/intelburn within seconds.

4.0GHz is doable if your cooling is decent, hang on and I'll dig up and post my 4.0GHz settings.
10-09-2008, 02:54 PM
SiGfever

Quote:

Originally Posted by Guacomole

Thanks alot these settings have helped me a bunch I really appreciate all the input...:up::up:

Thanks should go to Grnfinger, Cryptik, and Nemesis for those settings. :up:
10-09-2008, 03:05 PM
Grnfinger

Quote:

Originally Posted by electricl

Thanks Grin for the suggestions, my system is now stable and Ive got some decent bandwidth.
Do you think its possible to do 4GHz? Everyting Ive tried so far failed prime/intelburn within seconds.

here try this for a start.

3.9GHz

Extreme Tweaker
Ai Overclock Tuner : Manual
OC From CPU Level Up : AUTO
CPU Ratio Control : Manual
- Ratio CMOS Setting : 8.5
FSB Frequency : 459
CPU Clock Skew : Normal
North Bridge Clock Skew : Normal
FSB Strap to North Bridge : 333
DRAM Frequency: DDR2-1103
Dram Clock Skew CH1 A1 : Advanced 300ps
DRAM Clock Skew CH1 A2 : Advanced 300ps
Dram Clock Skew CH1 B1 : Advanced 300ps
Dram Clock Skew CH1 B2 : Advanced 300ps

DRAM Timing Control: Manual
CAS# Latency : 5
RAS# to CAS# Delay : 5
RAS# Precharge : 5
RAS# ActivateTime : 15
RAS# to RAS# Delay : 3
Row Refresh Cycle Time : 55
Write Recovery Time : 6
Read to Precharge Time : 3

Read to Write Delay (S/D) : 8
Write to Read Delay (S) : 3
Write to Read Delay (D) : 5
Read to Read Delay (S) : 4
Read to Read Delay (D) : 6
Write to Write Delay (S) : 4
Write to Write Delay (D) : 6

Write to PRE Delay : 14
Read to PRE Delay : 5
PRE to PRE Delay : 1
ALL PRE to ACT Delay : 5
ALL PRE to REF Delay : 5

DRAM Static Read Control: Enabled
Dram Read Training : AUTO
MEM OC Charger : AUTO
Ai Clock Twister : Stronger
Transaction Booster : Manual

Common Performance Level [8]

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 CHA PH5 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
Pull-In of CHB PH5 Disabled

PCIE Frequency : 101

CPU Voltage : 1.3875
CPU PLL Voltage : 1.53975
FSBT : 1.33850
DRAM Voltage : 2.1
North Bridge Voltage : 1.39150
South Bridge Voltage 1.5 : 1.5
South Bridge Voltage 1.1 : 1.1

CPU GTL Reference 0 : +30mv
CPU GTL Reference 1 : +20mv
CPU GTL Reference 2 : +20mv
CPU GTL Reference 3 : +30mv
North Bridge GTL Reference : AUTO
DDR2 Channel A REF Voltage : AUTO
DDR2 Channel B REF Voltage : AUTO
North Bridge DDR Reference : AUTO

Load Line Calabration : Enabled
CPU Sread Spectrum : Disabled
PCIE Spread Spectrum : Disabled
http://i237.photobucket.com/albums/f.../3900_MIIF.jpg

4.0GHz

Extreme Tweaker
Ai Overclock Tuner : Manual
OC From CPU Level Up : AUTO
CPU Ratio Control : Manual
- Ratio CMOS Setting : 8.5
FSB Frequency : 471
CPU Clock Skew : Normal
North Bridge Clock Skew : Normal
FSB Strap to North Bridge : 333
DRAM Frequency: DDR2-1132
Dram Clock Skew CH1 A1 : Advanced 350ps
DRAM Clock Skew CH1 A2 : Normal
Dram Clock Skew CH1 B1 : Advanced 350ps
Dram Clock Skew CH1 B2 : Normal

DRAM Timing Control: Manual
CAS# Latency : 5
RAS# to CAS# Delay : 5
RAS# Precharge : 5
RAS# ActivateTime : 18
RAS# to RAS# Delay : 5
Row Refresh Cycle Time : 65
Write Recovery Time : 6
Read to Precharge Time : 5

Read to Write Delay (S/D) : 10
Write to Read Delay (S) : 4
Write to Read Delay (D) : 5
Read to Read Delay (S) : 6
Read to Read Delay (D) : 6
Write to Write Delay (S) : 5
Write to Write Delay (D) : 6

Write to PRE Delay : 16
Read to PRE Delay : 6
PRE to PRE Delay : 1
ALL PRE to ACT Delay : 6
ALL PRE to REF Delay : 6

DRAM Static Read Control: Disabled
Dram Read Training : Disabled
MEM OC Charger : Enabled
Ai Clock Twister : Moderate
Transaction Booster : Manual

Common Performance Level [8]

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 CHA PH5 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
Pull-In of CHB PH5 Disabled

PCIE Frequency : 101

CPU Voltage : 1.4375
CPU PLL Voltage : 1.57950
FSBT : 1.36500
DRAM Voltage : 2.19750
North Bridge Voltage : 1.43125
South Bridge Voltage 1.5 : 1.5
South Bridge Voltage 1.1 : 1.1

CPU GTL Reference 0 : Auto
CPU GTL Reference 1 : Auto
CPU GTL Reference 2 : Auto
CPU GTL Reference 3 : Auto
North Bridge GTL Reference : AUTO
DDR2 Channel A REF Voltage : AUTO
DDR2 Channel B REF Voltage : AUTO
North Bridge DDR Reference : AUTO

Load Line Calabration : Enabled
CPU Sread Spectrum : Disabled
PCIE Spread Spectrum : Disabled

http://i237.photobucket.com/albums/f...r/MII_4GHZ.jpg
http://i237.photobucket.com/albums/f...table_1130.jpg
10-09-2008, 03:25 PM
CryptiK

Quote:

Originally Posted by radaja

@cryptik, tried your settings and it failed to load windows.but any way heres mem settings on auto,i just upped fsb mem-5/6 pl8.icouldnt get it to boot with same fsb 5/6 w/g.skills.are ozc gold pc-8800 any good?

Perhaps you need more vNB to get my timings stable, the tighter the ram timings the harder it is for the MCH and the more vNB you need. Try 5-5-5-15-3-45-6-3 @ 2.01XXX vDimm. Personally I don't like OCZ memory, there's always a better option, like G.Skill, Mushkin, even Corsair.

Quote:

Originally Posted by RandomSuffix

Thanks for the reply CryptiK, I've not actually got the board yet or I'd test myself. I'm just wondering if I'm going to have a decent amount of control over them from the board itself, or if I'm going to have to splash out on a controller.

Try first before you buy a controller, I don't have a need for one, I just use BIOS to control chassis and ram fans, and I use an Antec TriCool 140mm blowhole and 120mm CPU fan.

Quote:

Originally Posted by KURTZ

thx mate :) however i'm wondering about the voltages: 1.5 over the NB isn't too much? also what about the vFSB and PLL?

I used to be very gentle with motherboards until I had my P5B vanilla, I vMCH modded it and ran 1.45v 24/7 through it for 1 year+ and it was fine. Personally I wouldn't hesitate to use 1.4v 24/7 on a P45, 1.5v is about the highest I'd go with vNB on stock cooling. vFSB max is 1.26v, vPLL max is 1.575v, above that is beyond Intel spec and it becomes a guessing game of balancing risk with performance.

Quote:

Originally Posted by Harsha

Hi Cryptik,
Well this is the point I ask for help. I got a Q9550 E0 step (1.18xx VID), put it into the M2F and put in all 8GB (2GB x 4) Mushkin RAM (996580) onto the board with a vanilla 8800GT 512MB...powered up...and NO BOOT. Pulled out 2 sticks of RAM from the white sockets and it POSTED... :hitself:

I swapped the 2 sticks I pulled out into the blue sockets and posted again, so I guess all 4 sticks are alive... :rotf:

Vista 64 SP1 loaded onto the 300GB Velociraptor in less than 20 mins :shocked:

Now could you point me in the direction to my settings; I know you probably have given them before to someone else to get up and running with 8GB of DDR2 but I've started to trawl through from page 1. I'm not sure if I should be trying to get my OC up before getting the 8Gb stable or try to get the CPU up to speed and then add the other 4GB. Any advice at all would be welcome :bows:

Have a look at Grnfingers settings for 4GB, then increase vNB about 0.06v and try again, you may need about 1.4v vNB to get 8GB stable. You may also need to loosen up a lot of your secondary timings to get stability.

Quote:

Originally Posted by Guacomole

Okay Cryptik I have spent the last 3 hours reading all of the posts and I was just wondering if you can post some 24/7 settings of your rock solid E8400 OC??

I mean with the best acceptable bandwith and processor OC around 4.0...

I am running E8400 CO with (4X1GB) Crucial 1066 D9 and I am plugging in all these settings I can make it into the OS prime for awhile but when I reboot my computer shuts down and hangs....

I was just thinking you have some settings I could plugin and give it a run I saw the posts from earlier page 43 and I can run that set up fine but as soon as I introduce any memory performance I hang or have to reset the CMOS...

Thanks or any settings you might have.....

P.S. Forget my signature this is my back up rig I am referring to Asus Maximus II Formula, E8400, D9 Crucial 1066

Here is my totally stable 4 GHz overclock using C0 e8400 with ram/NB settings yielding highest bandwidth & lowest latency. Also make sure to never have a larger gap than 0.11v between vFSB and vNB, or it will hang on reboot with a cleared CMOS, so if you set 1.2v vFSB do not set more than 1.31v vNB.

PHP Code:

Extreme Tweaker Ai Overclock Tuner : Manual OC From CPU Level Up : AUTO CPU Ratio Control : Manual - Ratio CMOS Setting : 9 FSB Frequency : 445 CPU Clock Skew : Normal North Bridge Clock Skew : Normal FSB Strap to North Bridge : 266 DRAM Frequency: DDR2-1116 Dram Clock Skew CH1 A1 : Auto DRAM Clock Skew CH1 A2 : Auto Dram Clock Skew CH1 B1 : Auto Dram Clock Skew CH1 B2 : Auto DRAM Timing Control: Manual CAS# Latency : 5 RAS# to CAS# Delay : 5 RAS# Precharge : 5 RAS# ActivateTime : 12 RAS# to RAS# Delay : 3 Row Refresh Cycle Time : 30 Write Recovery Time : 6 Read to Precharge Time : 3 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 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: Disabled Dram Read Training : Disabled MEM OC Charger : Disabled Ai Clock Twister : Moderate Transaction Booster : Manual Common Performance Level [8] 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 CHA PH5 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 Pull-In of CHB PH5 Disabled PCIE Frequency : 100 CPU Voltage : 1.34375 CPU PLL Voltage : 1.5000 FSBT : 1.16XXX DRAM Voltage : 2.01XXX North Bridge Voltage : 1.27XXX South Bridge Voltage 1.5 : 1.5 South Bridge Voltage 1.1 : 1.1 CPU GTL Reference 0 : +30mv CPU GTL Reference 1 : -10mv CPU GTL Reference 2 : +30mv CPU GTL Reference 3 : -10mv North Bridge GTL Reference : AUTO DDR2 Channel A REF Voltage : AUTO DDR2 Channel B REF Voltage : AUTO North Bridge DDR Reference : AUTO Load Line Calabration : Enabled CPU Sread Spectrum : Disabled PCIE Spread Spectrum : Disabled

Quote:

Originally Posted by KURTZ

@ Cryptik (and others) just few questions:

1) what's the max voltage that i can give to the NB without any trouble for the mobo?
2) same question for the PLL

thx

I think 1.40v vNB should be fine 24/7 just watch your NB temps.

vPLL should be fine up to 1.8v or more without damaging the mobo, however that is not good for the CPU, keep it under 1.6v at all times.
10-09-2008, 04:53 PM
Guacamole

Thanks Guys this is an awesome thread everyone is very very helpful...:clap::clap:
10-09-2008, 06:31 PM
radaja

@cryptik, i finally got the timings you gave to work for me. this is the best ive been able to get so far.now that im on xp notice im able to up vnb more, thanks for all your help. much appreciated. http://i436.photobucket.com/albums/q...ajarocs/34.jpg http://i436.photobucket.com/albums/q...arocs/best.png
10-09-2008, 06:46 PM
radaja

sorry for the double post,but here are my bios settingsAi Overclock Tuner: Manual

Ratio CMOS Setting: 9
FSB Frequency: 458
CPU Clock Skew: normal
NB Clock Skew: normal
FSB Strap to North Bridge: auto
DRAM Frequency: DDR2-1100
DRAM Timing Control: manual
5-5-5-12-3-30-6-3 rest auto
DRAM Static Read Control: Disabled
DRAM Read Training: Disable
MEM. OC Charger: enabled
Ai Clock Twister: moderate
Ai Transaction Booster: manual

PCIE Frequency: 100
CPU Voltage: 1.425
CPU PLL Voltage: 1.5
FSB Termination Voltage: 1.16625
DRAM Voltage: 2.01200
North Bridge Voltage: 1.25900
South Bridge 1.5 Voltage: 1.5
South Bridge 1.1 Voltage: 1.1
CPU GTL Reference (0): Auto
CPU GTL Reference (1): Auto
CPU GTL Reference (2): Auto
CPU GTL Reference (3): Auto
NB GTL Reference: Auto
DDR2 ChA Reference Voltage: Auto
DDR2 ChB Reference Voltage: Auto
North Bridge DDR Reference: Auto

Load-Line Calibration: disabled
CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Disabled
___
10-09-2008, 06:58 PM
CryptiK

Quote:

Originally Posted by radaja

@cryptik, i finally got the timings you gave to work for me. this is the best ive been able to get so far.now that im on xp notice im able to up vnb more, thanks for all your help. much appreciated.

Good work mate, and no problem at all I'm happy to give my humble opinion, looks like you have a nice cpu there too, I only have a C0 and it's no fun by comparison.
10-09-2008, 10:08 PM
KURTZ

Quote:

Originally Posted by CryptiK

I used to be very gentle with motherboards until I had my P5B vanilla, I vMCH modded it and ran 1.45v 24/7 through it for 1 year+ and it was fine. Personally I wouldn't hesitate to use 1.4v 24/7 on a P45, 1.5v is about the highest I'd go with vNB on stock cooling. vFSB max is 1.26v, vPLL max is 1.575v, above that is beyond Intel spec and it becomes a guessing game of balancing risk with performance.

Quote:

I think 1.40v vNB should be fine 24/7 just watch your NB temps.

vPLL should be fine up to 1.8v or more without damaging the mobo, however that is not good for the CPU, keep it under 1.6v at all times.

thx mate :)
10-10-2008, 03:22 AM
Harsha

Hi all,
I seem to have come upon an anomaly; just trying to get my 8GB recognized I noticed in the BIOS my NB temps were going into the +70C region
which scared me. I was getting into the BIOS or Vista and then the keyboard or mouse would just freeze. To try and help the temps on the NB I lowered my voltages downward in incremental stages till I hit 1.1V(the lowest it can go). The machine now boots up with no freezes and I'm running a test on idle to check baseline stability @ 2.83GHz. Everest Ultimate is reporting 51C NB and 43C SB on idle, are the temps good or bad for Air and more importantly how long to check stability @ 2.83 before trying to bump up the speed. My worry is that running 8GB of DDR2 6400, I might need to be weary of the slower RAM. Any help with getting the slower RAM timings would be appreciated.
10-10-2008, 03:45 AM
CryptiK

You most likely have a badly seated northbridge heatsink - it is a common problem with these boards. You can try pulling out the board and tightening the screws that hold the NB heatsink on (right behind the NB) and if they are loose, that may take care of it. However if they are quite tight, you may need to remove the whole heatpipe setup, remove the 2 little washers that stop the NB heatsink sitting up hard against the NB IHS, and re-do the TIM and put it all back together. Google search it, there's some images I found that show the washers to remove.

I'm thinking of doing it just in case I can improve on my NB temps through doing so. I max out at 51*C on the NB with 1.27v using 2 instances of windows memtest each running 890MB of ram. This app gets the NB hotter than orthos, linpack or gaming.
10-10-2008, 03:52 AM
64dragon

Quote:

Originally Posted by Harsha

Hi all,
I seem to have come upon an anomaly; just trying to get my 8GB recognized I noticed in the BIOS my NB temps were going into the +70C region
which scared me. I was getting into the BIOS or Vista and then the keyboard or mouse would just freeze. To try and help the temps on the NB I lowered my voltages downward in incremental stages till I hit 1.1V(the lowest it can go). The machine now boots up with no freezes and I'm running a test on idle to check baseline stability @ 2.83GHz. Everest Ultimate is reporting 51C NB and 43C SB on idle, are the temps good or bad for Air and more importantly how long to check stability @ 2.83 before trying to bump up the speed. My worry is that running 8GB of DDR2 6400, I might need to be weary of the slower RAM. Any help with getting the slower RAM timings would be appreciated.

pull off the heatpipe assembly and redo the thermal paste with something non-conductive. also, add a washer to the back side of the board on the 2 screws for the nb. a fair amount of these boards have this issue.

edit: i'm too slow, cryptik beat me to it

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