Why can't my rig get past 3.7 GHz? - Overclock.net - An Overclocking Community

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Why can't my rig get past 3.7 GHz?

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post #1 of 13 (permalink) Old 03-10-2012, 05:43 PM - Thread Starter
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Stock FSB is 200 MHz. OC FSB is 260 MHz.
Stock HT is 2000 MHz. OC HT is 1800 MHz.
Stock memory clock is 1333 MHz. OC memory clock is 1040 MHz.

Everything else is set to auto. BSOD after 1 min in Intel Burn Test.

My rig is in my signature.

Before it crashes in Intel Burn Test, CPU VCore hovers between 1.4V to 1.5V.

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post #2 of 13 (permalink) Old 03-10-2012, 05:46 PM - Thread Starter
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post #3 of 13 (permalink) Old 03-10-2012, 06:16 PM - Thread Starter
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By the way, the motherboard can go above 290 FSB (I tested 290 FSB with a low CPU multiplier without crashes).

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post #4 of 13 (permalink) Old 03-10-2012, 06:44 PM - Thread Starter
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Anybody help please?

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post #5 of 13 (permalink) Old 03-10-2012, 09:10 PM
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This may have something to do with two things:

  1. Generic 1333Mhz memory can hold back overclocks by making memory config process difficult (since it is not as flexible due to the generally bad capabilities of low binned, bottom end memory)
  2. Integrated graphics boards like the 785G are known to not ref-clock (proper term for "FSB") OC as well

Octagonal 2020
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Hexagonal 2012
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CPU
AMD Ryzen 7 2700X
Motherboard
MSI B450I GAMING PLUS AC
GPU
Powercolor RED DRAGON RX570
RAM
16GB [2x8GB] Crucial Ballistix Sport LT @ 4000Mhz
Hard Drive
Kingston KC2000 1TB NVMe SSD (SKC2000M8)
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WD 2TB Caviar Black (WD2003FZEX)
Power Supply
Corsair HX Series 520W
Cooling
Noctua NH-D14 + Scythe Gentle Typhoon 1500RPM [x2]
Case
Antec ISK-600 Mini ITX
Monitor
ASUS PA238QR 1080p IPS LED [x2]
Keyboard
Razer Blackwidow Ultimate 2013 Edition
Audio
Audioengine D3 USB DAC
CPU
AMD "Kaveri" A10 7850k [4.4Ghz, 1.38V]
Motherboard
Gigabyte GA-F2A88XN-WIFI
GPU
Integrated Radeon R7 [1029Mhz OC]
RAM
16GB [2x8GB] Kingston HyperX Fury @ 2133Mhz (stock 1866)
Hard Drive
Crucial M4 512GB SSD (CT512M4SSD2)
Hard Drive
WD 1TB Caviar Black (WD1002FAEX)
Hard Drive
WD 2TB Green Intellipower (WD20EZRX)
Power Supply
Corsair HX Series 520W
Cooling
Noctua NH-D14 + Scythe Gentle Typhoon 1500RPM [x2]
Case
Antec ISK-600 mITX chassis
Monitor
ASUS PA238QR 23.6" 1920x1080 IPS LED monitor [x2]
Keyboard
Coolermaster Quick Fire Rapid
Audio
ASUS Xonar DG w/ 5.1 Headphone Amp
CPU
AMD Phenom II x6 1055T [4GHz, 300x13.5, 1.42V]
Motherboard
Gigabyte GA-990XA-UD3 AM3+ [NB 3ghz 1.35v]
GPU
MSI GeForce GTX 560 Ti Twin Frozr II 1GB
RAM
8GB [4x2GB] G.Skill ECO DDR3 [1600 6-8-6-20-24-1T]
Hard Drive
Intel X-25M 80GB SSD
Hard Drive
WD 1TB Caviar Black (WD1001FALS)
Hard Drive
WD 1TB Caviar Black (WD1002FAEX)
Power Supply
Corsair HX520 Modular PSU [520W]
Cooling
Noctua NH-D14 + Scythe Gentle Typhoon 1500RPM [x2]
Case
Antec 1200
Monitor
ASUS PA238QR 23.6" 1920x1080 IPS LED monitor [x2]
Keyboard
Coolermaster Quick Fire Rapid
Audio
ASUS Xonar DG w/ 5.1 Headphone Amp
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post #6 of 13 (permalink) Old 03-11-2012, 05:25 AM - Thread Starter
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Quote:
Originally Posted by xd_1771 View Post

This may have something to do with two things:
  1. Generic 1333Mhz memory can hold back overclocks by making memory config process difficult (since it is not as flexible due to the generally bad capabilities of low binned, bottom end memory)
  2. Integrated graphics boards like the 785G are known to not ref-clock (proper term for "FSB") OC as well

Regarding the 785G chipset, I tested it, and it caps at 290 MHz reference clock, so it can't be the motherboard's fault.

I ended up upping the voltage of the CPU to a 1.6V, and it still crashed. It can't be the memory's fault, right? Because it's running at a speed slower than stock. Also, is G.Skill a bad brand?

Edit: I increased the voltage of the memory of the memory from 1.5V to 1.52V, and that managed to fix it. I don't understand why it would need a voltage increase, since it's underclocked, but hey, it worked!

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post #7 of 13 (permalink) Old 03-11-2012, 07:09 AM
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G.Skill is a good brand, imo. Could be cheaper RAM like stated before or just not made to handle the OC. Also, have you tried running memtest?

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post #8 of 13 (permalink) Old 03-11-2012, 12:04 PM
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What timings are you configuring at that speed? Auto?  That might be setting it to something like CL6 or CL5 which will probably not be stable any further.

You ideally want to configure a ref clock that allows you to run your RAM at what is rated or what is capable of and work up the CPU clock from there for best stability results.

 

Cheap generic RAM is a hit to flexibility in that it's harder to determine stability because there are fewer possibilities with such RAM and fewer settings that actually end up as stable.  Generic RAM is bottom-end RAM - that is, it's the spec bottom end and can use ICs not binned for overclocking.  When dealing with processors that require ref clock raise to OC, I always recommend DDR3-1600.  1600Mhz kits often cost the same and are a huge step up in binning and overclock capabilities.


Octagonal 2020
(12 items)
Hexagonal 2016
(13 items)
Hexagonal 2012
(13 items)
CPU
AMD Ryzen 7 2700X
Motherboard
MSI B450I GAMING PLUS AC
GPU
Powercolor RED DRAGON RX570
RAM
16GB [2x8GB] Crucial Ballistix Sport LT @ 4000Mhz
Hard Drive
Kingston KC2000 1TB NVMe SSD (SKC2000M8)
Hard Drive
WD 2TB Caviar Black (WD2003FZEX)
Power Supply
Corsair HX Series 520W
Cooling
Noctua NH-D14 + Scythe Gentle Typhoon 1500RPM [x2]
Case
Antec ISK-600 Mini ITX
Monitor
ASUS PA238QR 1080p IPS LED [x2]
Keyboard
Razer Blackwidow Ultimate 2013 Edition
Audio
Audioengine D3 USB DAC
CPU
AMD "Kaveri" A10 7850k [4.4Ghz, 1.38V]
Motherboard
Gigabyte GA-F2A88XN-WIFI
GPU
Integrated Radeon R7 [1029Mhz OC]
RAM
16GB [2x8GB] Kingston HyperX Fury @ 2133Mhz (stock 1866)
Hard Drive
Crucial M4 512GB SSD (CT512M4SSD2)
Hard Drive
WD 1TB Caviar Black (WD1002FAEX)
Hard Drive
WD 2TB Green Intellipower (WD20EZRX)
Power Supply
Corsair HX Series 520W
Cooling
Noctua NH-D14 + Scythe Gentle Typhoon 1500RPM [x2]
Case
Antec ISK-600 mITX chassis
Monitor
ASUS PA238QR 23.6" 1920x1080 IPS LED monitor [x2]
Keyboard
Coolermaster Quick Fire Rapid
Audio
ASUS Xonar DG w/ 5.1 Headphone Amp
CPU
AMD Phenom II x6 1055T [4GHz, 300x13.5, 1.42V]
Motherboard
Gigabyte GA-990XA-UD3 AM3+ [NB 3ghz 1.35v]
GPU
MSI GeForce GTX 560 Ti Twin Frozr II 1GB
RAM
8GB [4x2GB] G.Skill ECO DDR3 [1600 6-8-6-20-24-1T]
Hard Drive
Intel X-25M 80GB SSD
Hard Drive
WD 1TB Caviar Black (WD1001FALS)
Hard Drive
WD 1TB Caviar Black (WD1002FAEX)
Power Supply
Corsair HX520 Modular PSU [520W]
Cooling
Noctua NH-D14 + Scythe Gentle Typhoon 1500RPM [x2]
Case
Antec 1200
Monitor
ASUS PA238QR 23.6" 1920x1080 IPS LED monitor [x2]
Keyboard
Coolermaster Quick Fire Rapid
Audio
ASUS Xonar DG w/ 5.1 Headphone Amp
▲ hide details ▲


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post #9 of 13 (permalink) Old 03-12-2012, 03:18 AM
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Umm, is that not a C2 chip? None of my C2's can go much over 3.7Ghz.

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post #10 of 13 (permalink) Old 03-12-2012, 11:29 AM
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Quote:
Originally Posted by tahayassen View Post

Stock FSB is 200 MHz. OC FSB is 260 MHz.
Stock HT is 2000 MHz. OC HT is 1800 MHz.
Stock memory clock is 1333 MHz. OC memory clock is 1040 MHz.
Everything else is set to auto. BSOD after 1 min in Intel Burn Test.
My rig is in my signature.
Before it crashes in Intel Burn Test, CPU VCore hovers between 1.4V to 1.5V.

If you left everything besides the HT and memory on auto then you are also overclocking the memory controller when you increase the base clock speed. If you're are already overclocking you probably want to keep the memory controller overclock, so give the CPU-NB a little more voltage, I think 1.25-1.35v is where you need to be for it.

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