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OC help p5n sli w/q6600

post #1 of 17
Thread Starter 
Ok For 4 days straight i been searching forums for 4-5hours a day...I cant get it to boot with ANY setting i find....Can someone please help me....
My current setup is
asus p5n-sli
ultra chilltec cpu cooler
OCZ ddr2 4096mb pc6400 800mhz
nvidia geforce 8800gts
ultra x-pro 750watt power supply

i had gotten it to post 1 time at 3.1
i cant figure out what i did i went thru so many settings=(( please help

My goal is 3.1 again please
post #2 of 17
First of all Welcome to OCN, please fill out your System specs in order for other members to assist you with overclocking your pc
ASUS G750JW
(16 items)
 
  
CPUMotherboardGraphicsRAM
Intel® Core™ i7-4700HQ Mobile Intel® HM87 NVIDIA® GeForce® GTX 765M with 2GB GDDR5 VRAM 8GB DDR3 1600MHz  
Hard DriveHard DriveOptical DriveCooling
Crucial MX100 256GB SSD 1TB hard drive (5400 rpm) Multiformat DVD±RW/CD-RW drive Stock Cooling 
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Windows 8.1 17.3” anti-glare FHD LED backlit (1920 x 1080) Onboard 41.0cm x 31.8cm x 1.7-5.0cm, 4.5Kg (8-cell batt... 
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ASUS G750JW
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Intel® Core™ i7-4700HQ Mobile Intel® HM87 NVIDIA® GeForce® GTX 765M with 2GB GDDR5 VRAM 8GB DDR3 1600MHz  
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Crucial MX100 256GB SSD 1TB hard drive (5400 rpm) Multiformat DVD±RW/CD-RW drive Stock Cooling 
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Windows 8.1 17.3” anti-glare FHD LED backlit (1920 x 1080) Onboard 41.0cm x 31.8cm x 1.7-5.0cm, 4.5Kg (8-cell batt... 
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post #3 of 17
So you have the P5N-SLI, as in the 570i chipset? That chipset is not going to OC a quad very well, if at all. Even the newer 650i (P5N-E SLI) boards maxed out at about 3.0GHz.
My System
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6850K ASUS X99-AII eVGA GTX 1060 32Gb Team Vulcan DDR4 3000 Cas 15 
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Samsung 960 EVO NVME Crucial M500 Seagate HDD Samsung F3 
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My System
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CPUMotherboardGraphicsRAM
6850K ASUS X99-AII eVGA GTX 1060 32Gb Team Vulcan DDR4 3000 Cas 15 
Hard DriveHard DriveHard DriveHard Drive
Samsung 960 EVO NVME Crucial M500 Seagate HDD Samsung F3 
CoolingOSMonitorKeyboard
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post #4 of 17
Quote:
Originally Posted by ericeod View Post
So you have the P5N-SLI, as in the 570i chipset? That chipset is not going to OC a quad very well, if at all. Even the newer 650i (P5N-E SLI) boards maxed out at about 3.0GHz.
TRUE!

You need a new board if you want to overclock that quad.
Like the above post stated, even 3.0ghz on a PSN is not easy.
intel
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I7 920 D0 4.2ghz with HT @ 1.275V Bios EVGA 3X SLI, 132-BL-E758-A1 2x XFX HD5870 in Crossfire 6gb 3x2gb Corsair XMS3 1600mhz @ 7-7-7-20 
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intel
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I7 920 D0 4.2ghz with HT @ 1.275V Bios EVGA 3X SLI, 132-BL-E758-A1 2x XFX HD5870 in Crossfire 6gb 3x2gb Corsair XMS3 1600mhz @ 7-7-7-20 
Hard DriveOptical DriveOSMonitor
3x WD 640gb AALS Raid 0 22x Samsung SATA DVD-RW Windows 7 Dell 3008wfp IPS 
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post #5 of 17
Thread Starter 
AH sorry my chipset is the nforce 650i
p5n-e sli
Edited by megabitez - 6/18/08 at 11:33pm
post #6 of 17
Thread Starter 
here are some pics of when i had it up with cpuz but me being greddy and stubborn i wanted more and lost the settings i had put

post #7 of 17
Thread Starter 
here are some pics stock
btw sorry for the multi post i thought of taking stock pics after i posted the other pics and it didnt let me add to those

post #8 of 17
Quote:
Originally Posted by megabitez View Post
here are some pics of when i had it up with cpuz but me being greddy and stubborn i wanted more and lost the settings i had put
TBH, that is a great OC. I dont think you will get any higher. it has to do with the circuit layout and the lack or proper GTL Ref voltage being supplied to the cores at higher FSB overclocks. Even the first iteration of the 680i suffers from this.
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My System
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6850K ASUS X99-AII eVGA GTX 1060 32Gb Team Vulcan DDR4 3000 Cas 15 
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Samsung 960 EVO NVME Crucial M500 Seagate HDD Samsung F3 
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post #9 of 17
Thread Starter 
ya but now i cant even get it pass 2.45. it will freeze during post or just keep reseting on its own now. i have NO idea what settings i used i tried backtracking all the sites i went to and i cant get it =*( any idea on how to get it back in that area?
post #10 of 17
Quote:
Originally Posted by megabitez View Post
ya but now i cant even get it pass 2.45. it will freeze during post or just keep reseting on its own now. i have NO idea what settings i used i tried backtracking all the sites i went to and i cant get it =*( any idea on how to get it back in that area?
Yeah, you are experiencing a FSB Hole. This effects all 600 series NVIDIA chipsets. Go to the 680i thread linked below in my sig and see on the first or second page I have a post on the FSB hole.

Or you can check out this thread:

How to Overclock NVIDIA 600 series chipsets past their OC wall (AKA FSB Hole)



This info is in my 680i overclocking sticky. However, since there are so many NVIDIA motherboard owners out there that are unaware of this, I decided to post this as it's own thread.

I found that these boards have a "FSB Hole". What I mean by FSB hole is that at a certain FSB, no matter how much vcore I gave the CPU, it would not boot stable, or sometimes not at all. At 390+ FSB (up to 410) I could not boot with 1.55 vcore. But when I set FSB to 411 and up, I was able to boot and run OCCT for over 3 hrs stable. I eventually reached 1.4 vcore at 3.7GHz. I have also found that no two boards will necessarily have the same FSB Hole, and bios updates can even move them to different FSB frequencies.

I would suggest lowering your multi to find your max FSB you can post at.



Quote:
I discovered I had a FSB hole with my motherboard. I couldnt OC FSB from 395 - 408, but at 411 FSB I can run OCCT stable. Running 3.705GHz at 1.4v. My ambient right now is 26°C, my idle is 33/36° and load is 52/54°C.

Processor Model: E6600
CPU Clock Speed: 3705MHz
CPU Bus Speed: 411.67
CPU Multiplier Setting: x 9
CPU Core Model: Core 2 Duo
CPU week/stepping: L649G979
CPU Voltage: 1.4v (no vdroop)
Motherboard: EVGA 680i SLI A1
Memory: G.Skill CL4D6400-2GBPK 4-4-4-12 2T
Cooling: Swiftech Sys, Apogee GT & NB cooler

CPU: 1.425v
CPU FSB: 1.4v
RAM: 2.0v
SPP: 1.4v
MCP: Auto
MCP->SPP: Auto

SuperPI result (1M): 14.655s

CPU-Z Validation
-----------------------------------------------------------------------------------------------------
Examples:
RPIJG couldnt post at 400 FSB, he was limited at 3.3GHz. Now he is running 3.5GHz (437.5 x 8) at 1.44v.
Quote:
Originally Posted by RPIJG View Post
Both of you get +REP for that, I dropped the multi to x7 pushed the FSB up to 1700MHz and everything seems stable now. Now back to raising the CPU clock
++++++++++++++++++++++++++++++++++++++++++++++++++ +++

Nate911 couldnt get past 3.15GHz (350 FSB x 9). Now he is running 3.4GHz (425 FSB x 8) with 1.34v.
Quote:
Originally Posted by nate911 View Post
Ok I got it now! My FSB Hole is between 380 (1520) and 384 (1536). I'm running at 1537 2 notches below 1.35. Will post here as I get higher, I'm probably nearly my limit though because of temps. :/ Even though the limit of 60C, I really don't want to go past 55C; that's what I'm at now.

EDIT: Wow, im stupid. I turned down the FSB and SPP to 1.2 and when it tried to boot it made staticy sounds... Oh well lol..

Anyways, I'm basically at my OC limit I think, I maybe can get a few more Mhz, it's just the temperatures getting close to 60. Thanks for the help guys! REP+
++++++++++++++++++++++++++++++++++++++++++++++++++ +++

Gauvenator has a 650i board and was stuck at 2.14GHz (306.5 FSB x 7). At the moment he is at 2.24GHz.
Quote:
Originally Posted by Gauvenator View Post
It looks like it was an FSB hole. I upped the vcore .125, and tried adding 30 mhz (instead of 20) and it posted and is stable.

Thank you all so much! I will bear in mind your other tips for future reference.
++++++++++++++++++++++++++++++++++++++++++++++++++ +++

Cyphear has an ASUS P5N32-E SLI based on the 680i chipset. He could only OC his E6300 to 2.62GHz. Now he is booting stable at 2.94GHz with 1.4v and still climbing. He actually had a 100MHz FSB hole!
Quote:
Originally Posted by Cyphear View Post
WOOHOO! I just took it up to 1660 QDR FSB and it booted! I'm at 2.94Ghz now at 1.4v Vcore (which is probably a little more than is actually needed). It wouldn't post before and it seems pretty damn stable so far. Thanks!!!


++++++++++++++++++++++++++++++++++++++++++++++++++ +++

Satchmo1972 was only able to hit 3.0GHz with a 338 FSB, but after jumping to 400 FSB, he is running at 3.6GHz.


Quote:
Originally Posted by Satchmo1972 View Post
Ericeod,
Thank you kind sir for the VERY helpful advice at which I'm now at 3.6ghz thanks to you my friend!
Thanks again,
Satchmo
++++++++++++++++++++++++++++++++++++++++++++++++++ +++

Limes found his FSB Hole at 380. He was stuck at 3.0GHz, but now he is running 425 FSB at 3.4GHz and still has more headroom to go higher.



Quote:
Originally Posted by Limes View Post
It was an FSB hole and with eric's help I reached 3.4 Ghz.

Temps are 27 and 33 idle. .

Super PI Calculation is 15.500s
My System
(16 items)
 
  
CPUMotherboardGraphicsRAM
6850K ASUS X99-AII eVGA GTX 1060 32Gb Team Vulcan DDR4 3000 Cas 15 
Hard DriveHard DriveHard DriveHard Drive
Samsung 960 EVO NVME Crucial M500 Seagate HDD Samsung F3 
CoolingOSMonitorKeyboard
H100i Windows 10 Pro 64 Samsung KU6300 40" Corsair K70 Vengeance 
PowerCaseMouse
Seasonic Gold 750W Phantek Enthoo Pro M Logitech G9X 
  hide details  
Reply
My System
(16 items)
 
  
CPUMotherboardGraphicsRAM
6850K ASUS X99-AII eVGA GTX 1060 32Gb Team Vulcan DDR4 3000 Cas 15 
Hard DriveHard DriveHard DriveHard Drive
Samsung 960 EVO NVME Crucial M500 Seagate HDD Samsung F3 
CoolingOSMonitorKeyboard
H100i Windows 10 Pro 64 Samsung KU6300 40" Corsair K70 Vengeance 
PowerCaseMouse
Seasonic Gold 750W Phantek Enthoo Pro M Logitech G9X 
  hide details  
Reply
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