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post #551 of 810
MMasterSK:

What is the CPUs VID?
You can find it with CPU-z or Core Temp.
Lower is better.

I'm Guessing you are trying to get to 3.0Ghz 7.5x 400x4.
You might have to get the VCore to 1.3v
Also I would unlink the memory from the FSB and see if that helps.
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Remnant v2
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post #552 of 810
teK0wnzU thanks for answer :-)

My memory is unlinked set to 1066 - stock timings. My CPU VID is 1.2125 V. Currently I achieved 1400 FSB Quad / 350 MHz FSB.
Vcore = 1.175 V (1.20 V idle / 1.1860 V load ).
CPU VTT = 1.24 V
CPU PLL = 1.5 V
Memory = 1.6 V (stock) (1.68 V in monitoring)
NB core = 1.32 V
SB core = 1.5 V
NB GTL Ref = +10mV

Strange thing is that setting Vcore to 1.16825 V and even to 1.16150 V gives same voltages in load and in idle as Vcore set to 1.175 V. Anyway - my current OC fails Prime95 small ftt test after 6,75 hours. Lower voltage (1.15 V in BIOS) failed after 4 minutes. I have to try raising voltage today and run test again. I will probably go for Vcore = 1.20 V in BIOS. That should be around 1.22 - 1.23 V in idle. If that fails then I think that it is not caused by Vcore. I will try to play with CPU VTT after that.

What do you think about that?

And finally you are right. I want to get it to 3.0 Ghz. Problem is that when I tried FSB 1400 with Vcore = 1.25 V (1.29 V idle) (CPU VTT = 1.24 V) my temperatures are getting little bit too high for me to raise voltage even more (69 C on hottest core). Probably my CPU VID is too high to get to 3.0 GHz. But if I get around 2.8 Ghz I will be happy :-)

In case that I will not be able to get at least 1400 Mhz FSB Quad I will probably put this CPU back into box and buy E8400 and try to overclock that monster ;-)
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post #553 of 810
Hmm .. I probably found issue: CPU GTLRef01/02/03/04 .. I set it to default from auto at the beginning .. I didn't know what it is so I've just set it to DEFAULT. I still don't quite understand how I can get GTLRef in mV, but I understand what it is and how it works. I've set it up using equation found somewhere. Now I'm running previously stated setup with Vcore = 1.15000 V and VTT = 1.20000 V. While it would fail on this voltage in 1 minute if GTL was set to DEFAULT .. I'm now running Prime95 for 25 minutes without failure :-) I think I'm on good way of lowering voltages even more.
I will report how it goes :-)

Thanks for trying to help ;-) REP+

PS.: But that doesn't mean that I don't accept any advices ;-)

PS2.: Is there somebody who can explain how I can get GTLRef 0,1,2,3 in mV?
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post #554 of 810
hey guys, i have a q9300, can i join this club?
so far at stock, plan to do 3.0, or 3.1 ghz
    
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post #555 of 810
SuppA-SnipA - Good luck !!!
I'm on it right now .. currently I'm on 2812 Mhz :-) Looks stable :-)

If I knew about CPU GTL Ref 2 days ago I would already be running at 3.0 Ghz I guess :-)
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post #556 of 810
how much vcore u give it? and i have ur zalman 9500, not the at edition though, temps?
Edited by SuppA-SnipA - 4/8/09 at 7:26pm
    
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WD 640GB AAKS, Seagate 500GB, 320GB Samsung SH-182M (RPC2) Windows 7 Pro X64 LG W2242TQ-BF - 22" + DCLCD 20" 
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post #557 of 810
Quote:
Originally Posted by SuppA-SnipA View Post
how much vcore u give it? and i have ur zalman 9500, not the at edition though, temps?
So currently I have system stable for 8 hours on prime95 small fft. Voltages:
Vcore = 1.150 V in BIOS (1.19 V idle / 1.16 V load)
VTT = 1.24 V
GTL Ref 1,3 =~ -58mV
GTL Ref 0,2 =~ -80mV

FSB Q = 1550 Mhz ==> CPU freq =~ 2906 Mhz

My temps are: Core 65, cpu 49 (Q-Fan turned on - I don't want to run all the time at 100% speed of this cooler if not needed)
Currently ZALMAN is at 2330 rpm while running Prime95. RPM at 100% duty mode is 2750 rpm :-)

I'm writing step by step log of what I changed and why I changed it during my overclocking of Q9300. But it's quick and dirty :-)

I'm going to lower voltages on this FSB as much as I can, because I want to raise FSB even more (and I think it is possible). Raising FSB is generating much more heat now so I need to lower voltages as much as I can.
I found out that by lowering GTL Ref I can go further down with voltages. I was stable from FSB Q = 1400 Mhz with same voltages as I currently have with GTL Ref 1,3 =~ -40 mV
GTL Ref 0,2 =~ -60 mV

That setup worked for up to FSB Q = 1500 Mhz. I tried raising voltages after that which worked, but was generating too much heat. So I decided to keep voltages same and try to change GTL. It worked :-) I need to try to lower GTL more and see if lower voltages will work.
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post #558 of 810
anybody here with a zalman 9500 get a 3ghz oc with the fan at low speed setting? because when i increase my fan speed, i can hear the ball bearings rattle - quite annoying
    
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Intel Q9300 Gigabyte EP-45 DS3L Palit Radeon HD 4850 Sonic OCZ Reaper 4 x 1 GB 1066mhz 
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WD 640GB AAKS, Seagate 500GB, 320GB Samsung SH-182M (RPC2) Windows 7 Pro X64 LG W2242TQ-BF - 22" + DCLCD 20" 
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CPUMotherboardGraphicsRAM
Intel Q9300 Gigabyte EP-45 DS3L Palit Radeon HD 4850 Sonic OCZ Reaper 4 x 1 GB 1066mhz 
Hard DriveOptical DriveOSMonitor
WD 640GB AAKS, Seagate 500GB, 320GB Samsung SH-182M (RPC2) Windows 7 Pro X64 LG W2242TQ-BF - 22" + DCLCD 20" 
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post #559 of 810
need help ocing my q9300 to 3.0ghz with nvidia nforce 780i sli motherboard and 4gigs of ram 800mhz. any help would be appreciated
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post #560 of 810
Hallo to everyone here!!
i have to say i'm new to overclocking and i want to ask you guys this...
if i just change the multiplier and the bus speed i can have a stable overcloed cpu?
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