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First time OC'ing intel Q9550 nForce 780i - Page 2

post #11 of 44
Psychovamp

Change your sig because that is not an 780i ultra, the ultra was a DDR3 board, which yours is not.

Sorry the 790i is the DDR3 board.

Also, for your load your PSU should be ok.

Now on to overclocking.

First thing I'd do is set your FSB to 400. Set the ram timings to linked and synced. Set your multiplier to 9. See if it boots with default voltage. Also, note what voltage it's using by default and then MANUALLY set all the voltages to their current rate so it doesn't choose what voltage to use after you boot which may cause instabilities.

Now, you should be able to get that q9550 to 4.0ghz on that board with not to much effort.

What I did with my rig is I set my voltage to 1.5v and then kept upping the FSB until it wouldn't post any more. Use the largest multiplier that you can as well when testing. Once you cant boot any more knock it down by 5-10FSB then fine tune the machine by stress testing it and then increasing/decreasing rates accordingly.

Also, when you stress test I'd advise not to let the cpu go over 75c. Nor raise the volts over 1.5v as both of these could potentially cause damage.

Also, when increasing/decreasing the FSB I'd do it in increments of 5-10.
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post #12 of 44
it took me a long long time to get 4.25 stable on this board and my fsb is maxed out at 500 which is very rare, the chip is what i would call a golden chip if others agree is debateable but these numbers are hard to get it takes alot of time to get there and you just must do alot of trial and error and educate yourself. just copying someone bios isn't what ocing is all about learn the board, the chip, and the ram there is a happy combo that you can hit the "sweet" spot and you will be very impressed with the 9550
post #13 of 44
the 9550 wont go above 8.5 multi Kush

i wish i have been all over wanting to get the extreme but for what the unlocked multi i don't think most extremes will go above what i am at anyways so i am solid with the 9550
post #14 of 44
Thread Starter 
Quote:
Originally Posted by profit8652 View Post
3.6 is easy to hit avoid alot of ram tho anything more that 4gigs you are wasting your time unless you are coding, encrypting, or using cad.

http://www.evga.com/forums/tm.aspx?m=598716&mpage=2

this guy is using a 9650 so you wont hit the same numbers but use this as a GUIDELINE ONLY user beware you can toast your chip with to much voltage. but you must never fear the BSOD
Ya i herd that you shouldn't go above 1.36 or so.
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CPUMotherboardGraphicsRAM
Q9550 2.83GHz 1333MHz 12 MB nForce 780i Ultra SLI Ready DDR2 1333Mhz FSB EVGA GeForce GTS450 FPB 1 GB GDDR5 OCZ DDR2 PC2-6400 4 GB Dual Channel 
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First system
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CPUMotherboardGraphicsRAM
Q9550 2.83GHz 1333MHz 12 MB nForce 780i Ultra SLI Ready DDR2 1333Mhz FSB EVGA GeForce GTS450 FPB 1 GB GDDR5 OCZ DDR2 PC2-6400 4 GB Dual Channel 
Hard DriveOptical DriveOSPower
Western Digital 1 TB Caviar Green SATA Samsung Blu-Ray Internal SATA Drive with Lightscri Windows 7 Apevia ATX-WA900W, AC 115/230 V 
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Antec Nine Hundred Two Ultimate Gaming Case 
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post #15 of 44
is there alot of vdroop on the FTW's as well? i experience about a .4v drop from bios to cpuz and almost another .2 when under full load.

sorry nix that the FTW has the option to disable vdrop. LUCKY
post #16 of 44
Thread Starter 
Quote:
Originally Posted by KusH View Post
Psychovamp

Change your sig because that is not an 780i ultra, the ultra was a DDR3 board, which yours is not.

Sorry the 790i is the DDR3 board.

Also, for your load your PSU should be ok.

Now on to overclocking.

First thing I'd do is set your FSB to 400. Set the ram timings to linked and synced. Set your multiplier to 9. See if it boots with default voltage. Also, note what voltage it's using by default and then MANUALLY set all the voltages to their current rate so it doesn't choose what voltage to use after you boot which may cause instabilities.

Now, you should be able to get that q9550 to 4.0ghz on that board with not to much effort.

What I did with my rig is I set my voltage to 1.5v and then kept upping the FSB until it wouldn't post any more. Use the largest multiplier that you can as well when testing. Once you cant boot any more knock it down by 5-10FSB then fine tune the machine by stress testing it and then increasing/decreasing rates accordingly.

Also, when you stress test I'd advise not to let the cpu go over 75c. Nor raise the volts over 1.5v as both of these could potentially cause damage.

Also, when increasing/decreasing the FSB I'd do it in increments of 5-10.

Thank you this is what I needed. A sort of starting point. In the Manuel it says that the multiplier is stuck at 8.5 like one of the other people said below. also 1.5v isn't that much?
First system
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q9550 2.83GHz 1333MHz 12 MB nForce 780i Ultra SLI Ready DDR2 1333Mhz FSB EVGA GeForce GTS450 FPB 1 GB GDDR5 OCZ DDR2 PC2-6400 4 GB Dual Channel 
Hard DriveOptical DriveOSPower
Western Digital 1 TB Caviar Green SATA Samsung Blu-Ray Internal SATA Drive with Lightscri Windows 7 Apevia ATX-WA900W, AC 115/230 V 
Case
Antec Nine Hundred Two Ultimate Gaming Case 
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First system
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q9550 2.83GHz 1333MHz 12 MB nForce 780i Ultra SLI Ready DDR2 1333Mhz FSB EVGA GeForce GTS450 FPB 1 GB GDDR5 OCZ DDR2 PC2-6400 4 GB Dual Channel 
Hard DriveOptical DriveOSPower
Western Digital 1 TB Caviar Green SATA Samsung Blu-Ray Internal SATA Drive with Lightscri Windows 7 Apevia ATX-WA900W, AC 115/230 V 
Case
Antec Nine Hundred Two Ultimate Gaming Case 
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post #17 of 44
1.5 is a dangerous lvel you should never need to go that high never go above 1.45 if you are leaving vdrop unless you are suiciding run or benching
post #18 of 44
Quote:
Originally Posted by profit8652 View Post
is there alot of vdroop on the FTW's as well? i experience about a .4v drop from bios to cpuz and almost another .2 when under full load.

sorry nix that the FTW has the option to disable vdrop. LUCKY
Here is an article that will help with vdroop.

It's a simple pencil mod that you can do and it will fix the vdroop issue. On my board my vdroop actually overvolts when underload.

Also, I forgot that the q9550 is a 45nm chip and not a 65nm chip I believe the max Intel recommends for 45nm is 1.4 or 1.45.
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Thermaltake LCD Mousepad Logitech 5.1 Surround Tritton AX PC Pro 5.1 Surround Headset 
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Intel q6600 @ 3.9ghz (433x9) EVGA 780i FTW evga 8200gs 512mb  4x2gb Corsair XMS TwinX 866mhz @ 5-5-5-5-18 
Hard DriveHard DriveOptical DriveCooling
2x 750gb Seagate Baracuda 7200.12 RAID0 5x 1.5tb Seagate Baracuda 7200.11 RAID5 LITE-ON 22X DVD Burner Black SATA Corsair H70 
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Win7 Ultimate x64 22" Acer x223w Logitech G15 Corsair HX750 
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CPUMotherboardGraphicsRAM
Intel i7 2600k Asus P8P67 Pro PNY GTX 480 2x4gb G.Skill Ripjaws 2133mhz 
Hard DriveCoolingOSMonitor
OCZ Vertex 3 Coolit Freezone Elite Win7 Ultimate Samsung 2233rz 
KeyboardPowerCaseMouse
Logitech G15 Corsair HX750 Antec Server case Razer Deathadder 
Mouse PadAudioAudio
Thermaltake LCD Mousepad Logitech 5.1 Surround Tritton AX PC Pro 5.1 Surround Headset 
CPUMotherboardGraphicsRAM
Intel q6600 @ 3.9ghz (433x9) EVGA 780i FTW evga 8200gs 512mb  4x2gb Corsair XMS TwinX 866mhz @ 5-5-5-5-18 
Hard DriveHard DriveOptical DriveCooling
2x 750gb Seagate Baracuda 7200.12 RAID0 5x 1.5tb Seagate Baracuda 7200.11 RAID5 LITE-ON 22X DVD Burner Black SATA Corsair H70 
OSMonitorKeyboardPower
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post #19 of 44
Quote:
Originally Posted by StuffStuff1 View Post
Well im not a intel over clocker but i will say dont get to optimistic with your OC's

Nforce boards (Like ours) are notrious for being bad OCing boards.

OCZ makes great thermal paste and SSD but i would avoid there ram.

Last you have a very dangerous PSU. Dont EVER try to get it to 900W you will make it blow. (Read this)


nforce boards are fine OC'ers...
post #20 of 44
^ i agree. intel doesn't know jack aobut what these chips are actually capable of. if they did they would be released at a high speed because i mean a 2.8ghz chip hitting 4ghz and above i am very stable and temps are well within 60C for a 4.25 at 1.314 (LOAD)
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