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Thread: Guide to Overclocking the Core I7 920 or 930 to 4.0ghz Reply to Thread
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  Topic Review (Newest First)
10-25-2018 02:17 AM
blodflekk Good guide, the best one I have found for x58. Decided to pull out my old 930 and gigabyte ga-x58a-ud3r and see what it can do. Sadly I can get stable at 3.99GHz (190*21) but the voltage it needs 1.42v I hit Tj Max after 15minutes of p95 large FFTs. Doesn't boot on 190*20 so I have to drop to 190*19 which is 3.5GHz, BLCK at 191 won't boot so I guess I'm stuck, can't push it any further?
09-20-2017 02:56 AM
Nicholas Steel Take photos of all the voltage & clock speed BIOS settings on your motherboard.
09-18-2017 11:54 AM
HugoTheOne With my system i can manage to get 3.10Ghz Fix, without issue. If i do 3.5, or 3.6 the system not boot. It's maybe my system can't handle more, or i just mess up something with the settings.
08-24-2017 12:18 AM
Nicholas Steel I went with a 19x multiplier and Hyperthreading disabled. I have to say, I literally experience no performance increase in:

- DOOM (2016) (must lower resolution to improve FPS to 60 when smoke is on screen/looking through glass)
- The Witcher 3 (720p resolution improves FPS but its still too low most of the time to be enjoyable, & 720p sucks)
- Dark Souls 3 (Upgrading from a 560Ti to the 760 allows me to play 60FPS at 1600x900 instead of 50+FPS at 720p)
- Guild Wars 2
- Lords of the Fallen
- The Surge (same places and camera angles still result in FPS loss. Lowering resolution or resolution scaling greatly helps FPS while greatly lowering visual fidelity)
- Dragon Age: Inquisition
etc.

Which proves a Geforce 760 4GB video card is the limiting factor and not the CPU.

Edit: my friend has the same CPU and Motherboard as me and they recently upgraded to a Geforce 960 4GB video card. They can achieve notably improved frame rates at 1920x1080 than I can in many of these games (especially The Witcher 3).

Edit 2: Dragon Age: Inquisition exhibits more consistent frame timing with the overclock.
08-18-2017 10:25 AM
Nicholas Steel I've taken the plunge and have configured my BIOS with the following settings:

CPU Multiplier: 19 (3.6GHz)
Base Clock: 190MHz
RAM Multiplier: Lowest Available Option (I chose 2nd lowest, 1.5GHz)
UnCore Multiplier: Lowest Available Option
QPI Quickpath Interconnect Multiplier: Lowest available Option
RAM Timings: Auto
RAM Command Rate: 2
Hyperthreading: Disabled (reduces heat)

Vcore (CPU Voltage): 1.2750v (Guide says 1.2750v for D0 Stepping CPU)
PLL: 1.88v
qpi/uncore (VTT): 1.35v
IOH: 1.2v
ICH: 1.2v
Vdimm: 1.50v (I am using 1.50v RAM so I see no reason to increase it to 1.65v)

Load Line Calibration: Enabled
Both Spread Spectrum Settings: Disabled

I performed Prime 95's Small FFT stress test on 8 (hyperthreaded) Cores while watching Youtube for 33 minutes and encountered no issues. The CPU didn't exceed 64 degrees celcius (TJMax=67.9 celcius) each time I stopped to look at it for 30 seconds and each CPU Core never exceeded 71 degrees celcius (80 degrees and higher is bad and 90 degrees and higher is dangerous/stupidly hot I think?). I will of course need to do an overnight stress test to be confident that this setup is stable.

My previous attempt at overclocking involved leaving all the voltages and various settings set to "Auto" and was a really poor attempt at overclocking in hindsight (it resulted in blue screens occurring every so often and on other occasions, rebooting without warning).

Intel i7 920 D0 Stepping
ASUS P6T
24GB DDR3 RAM
Geforce 760 4GB
08-18-2017 01:44 AM
Nicholas Steel I was thinking about overclocking my Intel i7 920 D0 Stepping CPU that I purchased back in 2009: http://ark.intel.com/products/37147/Intel-Core-i7-920-Processor-8M-Cache-2_66-GHz-4_80-GTs-Intel-QPI

At 2.793 Ghz (multiplier increased to 21x and Turbo Boost disabled, everything else on Auto) I get these temperature results in AIDA64 while using Prime95's Small FFT stress test: (20 minutes) http://imgur.com/eVelXwp Edit: It's been an hour and 50 minutes with Prime95 now and the hottest CPU Core is holding at 65 degrees celcius and "CPU" (what does this variable refer to?) is holding at 56 degrees celcius. Edit: http://imgur.com/MqxGzPK (2 hours 10 minutes)

Should I be worried about these results before even beginning to consider overclocking? I am using a Noctua DH14 Heatsink, are these temperatures in line with using this heatsink? If they aren't then maybe I applied the thermal paste improperly or the heatsink isn't applied as firmly against the CPU as it should be.

I've been reading this guide on overclocking the CPU and am currently just monitoring temperatures before doing anything drastic. I'm pretty unfamiliar with modern overclocking but can understand the guide in the original post, It was a lot easier when you just had a FSB and Multiplier to adjust smile.gif

If the temperatures are good, what are some good suggested voltages for achieving an overclock of say, 3.2 to 3.4Ghz? The guide provides values for achieving a 4Ghz overclock but I don't want to be quite that risky with my hardware.

Thank you,

Edit: "What are safe voltages?" should be updated to mention the 1.275v VCore value for D0 Stepping CPU's.
Edit: Modern Prime95 versions don't seem to let you specify more Threads than there are CPU Cores. In the case of the 920 and 940 CPU that would be 8 threads max (not 10!).
05-01-2017 08:53 AM
7175
Quote:
Originally Posted by Akusho View Post

My dad asked me to overclock his old 920. Currently stopped at 3.95 at 1.245 volts. Will wait a few weeks for the weather to warm up and see what the temps will be to decide if I have a bit of room to go 4.1 or not.
Something that is bothering me is the LLC. I've searched the net but haven't found a definitive answer to whether it can hurt the CPU or not with the voltage spikes. I would prefer to not damage it and let it live at least a few years more. Any advice?
Without LLC I would have to bump the voltage up to 1.3, and with the voltage not downscaling on idle I would prefer to not have it sit always at 1.3.

I've had LLC enabled on my i7 920 @ 3.8-4.0 GHz 24/7 since 2009. Use this PC for 3D games and compiling stuff pretty regularly. Just my two cents.
05-01-2017 01:30 AM
Akusho My dad asked me to overclock his old 920. Currently stopped at 3.95 at 1.245 volts. Will wait a few weeks for the weather to warm up and see what the temps will be to decide if I have a bit of room to go 4.1 or not.
Something that is bothering me is the LLC. I've searched the net but haven't found a definitive answer to whether it can hurt the CPU or not with the voltage spikes. I would prefer to not damage it and let it live at least a few years more. Any advice?
Without LLC I would have to bump the voltage up to 1.3, and with the voltage not downscaling on idle I would prefer to not have it sit always at 1.3.
08-22-2016 12:14 AM
masterdev
Quote:
Originally Posted by chadamir View Post


Q: Is there a list of BSODs and what I should do?


A: Thanks to Hammer=GOM= there is. He also provided a helpful link to software which will help you see what error code was displayed:

BSOD viewer:
http://www.nirsoft.net/utils/blue_screen_view.html

BSOD codes:

BSOD codes for overclocking

0x101 = increase vcore

0x124 = increase/decrease vcore or QPI/VTT...have to test to see which one it is

0x0A = unstable RAM/IMC, increase QPI first, if that doesn't work increase vcore

0x1E = increase vcore

0x3B = increase vcore

0x3D = increase vcore

0xD1 = QPI/VTT, increase/decrease as necessary

0x9C = QPI/VTT most likely, but increasing vcore has helped in some instances

0x50 = RAM timings/Frequency or uncore multi unstable, increase RAM voltage or adjust QPI/VTT, or lower uncore if you're higher than 2x

0x109 = Not enough or too Much memory voltage

0x116 = Low IOH (NB) voltage, GPU issue (most common when running multi-GPU/overclocking GPU)

Mother of god!!!

God bless you my son! biggrin.gifcheers.gif
06-28-2016 04:10 AM
Mattk50 I've been trying to push my old i7 920 further than i have before since i got a fancy cooler and have some free time, but i've run into an issue on my asus p6t deluxe v2, according to prime 95 its doing the cpu throttling thing mentioned in the OP:
Quote:
Q: What is this multiplier throttling I've heard about?

A: Some boards will throttle down the 21x multiplier if the wattage becomes too high. The culprits without public fixes are the Asus p6t deluxe and vanilla (The deluxe v1 has a bios available on the xtremesystems forum which can be crossflashed onto the v2 which will fix this problem) It really only becomes a problem at high voltages with high frequencies. Other boards have ways of disabling it.
Even worse than just impacting my performance, i suspect that this issue is also responsible for some odd problems i've had where 4-60 seconds after an intensive application closes and offloads enough memory, i get a crash, again just a guess but i can see why suddenly ramping up the ratio at a high base could kill my stability.

Im looking for some more information on whether i can safely crossflash the custom bios on the xtremesystems forum to the v2, and if it would even be worth the risk. I can push higher on 21 ratio, but 19 is useable too. Or, even better has anyone found an alternate workaround to keep the 21 ratio steady?
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