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Q6600 Overclocking help

post #1 of 5
Thread Starter 
Yesterday I decided to overclock a bit more and got my Q6600 G0 on a Gigabyte P35-D3SL to overclock to 2.85 GHz (317 x 9) while keeping the BIOS vcore to 1.300 volts. I set the SPD divider to 3.0 to have my memory running at 950 MHz. CPU-Z and Speedfan both report my voltage at idle to be 1.264 volts. I can run prime95 stable for at least an hour (I haven't tried longer).

Today I tried to overclock to 3.0 GHz. I set the frequency to 334 and raised the vcore to 1.3250 volts in the bios. To offset any possible memory problem, I set the SPD to 2.5. I could boot to windows, but the moment I started prime95, my system reboot. I continually raised the bios vcore higher, one notch at a time, until I could finally run prime95 for at least 10 minutes (I haven't tried longer), and the bios vcore ended up being 1.368v or so.

I was just wondering if that sounds about right, to raise my stable system at 2.85 GHz and 1.3000v bios vcore to 3 GHz, I would have to raise the BIOS vcore to 1.368v or so. Thanks in advance.
First Rig
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CPUMotherboardGraphicsRAM
Q6600 G0 OC 3.2 GHz (400x8) Gigabyte P35-DS3L XFX 8800GT Alpha Dog XT OC 2 x 1 GB Crucial DDR2 800 MHz 
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Seagate 7200.10 500GB Windows Vista 64 Bit SP1 650 watt Antec Earthwatts 
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First Rig
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CPUMotherboardGraphicsRAM
Q6600 G0 OC 3.2 GHz (400x8) Gigabyte P35-DS3L XFX 8800GT Alpha Dog XT OC 2 x 1 GB Crucial DDR2 800 MHz 
Hard DriveOSPower
Seagate 7200.10 500GB Windows Vista 64 Bit SP1 650 watt Antec Earthwatts 
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post #2 of 5
When overclocking your CPU. Do NOT touch your ram. Only mess with the ram after your CPU is stable.

On that note, try dropping your ram down to all stock settings, and then bumping your FSB up to 1333 and leave the vCore stock.
post #3 of 5
Quote:
Originally Posted by Betrivent View Post
When overclocking your CPU. Do NOT touch your ram. Only mess with the ram after your CPU is stable.

On that note, try dropping your ram down to all stock settings, and then bumping your FSB up to 1333 and leave the vCore stock.
This is true, unless if course he is wanting to go for 3.4+ he would need looser timings.
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EITM
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E3110 @ 3.8 DFI X48 T2R Sapphire 4870 OC'd 4GB Gskill DDR2-1066 
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Seagate 500GB 7200.11 32MB Win 7 Home Professional 64-Bit 24" Dell WFP2407 Logitech G15 v2.0 
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post #4 of 5
Thread Starter 
Ah,so should I just leave the SPD on auto and have it go up along with frequency as I set the frequency higher?
First Rig
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q6600 G0 OC 3.2 GHz (400x8) Gigabyte P35-DS3L XFX 8800GT Alpha Dog XT OC 2 x 1 GB Crucial DDR2 800 MHz 
Hard DriveOSPower
Seagate 7200.10 500GB Windows Vista 64 Bit SP1 650 watt Antec Earthwatts 
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First Rig
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q6600 G0 OC 3.2 GHz (400x8) Gigabyte P35-DS3L XFX 8800GT Alpha Dog XT OC 2 x 1 GB Crucial DDR2 800 MHz 
Hard DriveOSPower
Seagate 7200.10 500GB Windows Vista 64 Bit SP1 650 watt Antec Earthwatts 
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post #5 of 5
I would recommend adding +0.1v to G(MCH) overvoltage control as well as to the FSB voltage. The NB chipset needs more voltage, especially when overclocking a quad.
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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 
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Seasonic Gold 750W Phantek Enthoo Pro M Logitech G9X 
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