A new discussion about the FX4350 overclocking thread is underway.
A new discussion about the FX4350 overclocking thread is underway.
Hi All,
Here’s a summary of the current setup:
System specs:
- fx4350 16gb Corsair Vengeance Gold Pro 2400 1.65v (bought in a refurbished bin)
- Asus Sabertooth fx990 r2.0
- Sharkoon modular psu bronze 80 500w
- Arctic Freezer Xtreme r2 160w cooler
- Two 12-inch chassis fans blowing up from the base
- Two old P4/i series fans as front chassis fans blowing in
- A secondary fan from my old A11 as CPU airflow booster, placed beside the cooler
- A few USB fans blowing into the 3.5 bay
- Two additional 80mm fans at the rear, one is a jet turbine round I series cooler that performs well when speed is reduced and paired with another old CPU cooler
- An exhaust funnel to reduce vibration
Noise level: When running at max, it produces noticeable air turbulence, but is very quiet in silent mode.
GPU: Sapphire Sapphire R7 370 OC, 2gb DDR5
Storage: Samsung Evo 850 250gb HDD with a couple of heatsinks on top
System temperature: 1°C in sleep mode
Load: 55c @ 4.7ghz
Issues:
- System freezes above 4.7ghz, causing the processor to stall and the pointer to freeze
- I tried boosting FSB and memory speed to 2054MHz, but it caused instability
- I’m curious if overclocking the multiplier and FSB together could help
- Is there any benefit to simultaneously overclocking both?
- I have some thermal epoxy left; should I try applying it to the old Arctic A11 heatsink?
Any advice or help would be appreciated. Thanks!
The multiplier only adjusts the base CPU frequency, while other components such as HT, NB, and RAM are raised, and it can also affect PCIe speed. If you opt for OC on FSB, be careful about these other parts and adjust their values accordingly to achieve optimal performance.
The commonly used approach is to determine the boundaries when raising the multiplier and then reduce it slightly, testing FSB until memory and other parts become stable. Once those limits are identified, lower the setting by a small margin for full stability.
Monitor parameters such as temperatures and voltages continuously, and perform the same benchmark to assess the performance improvement.
Here’s your text rewritten with the same length and structure:
I was seeking information on an optimal vcore and some details about the Corsair memory, as GSKill is suggested. The OC auto tuner defaults to 1333mhz/1.5 v. By adjusting the timings and voltage manually, I can reach DDR3 2054 (base 1866). However, once I exceed 4.7ghz, performance drops significantly. I’m still unclear on the voltage settings. I have a few guides, but understanding them isn’t straightforward—especially since the configurations differ between setups.
My 4.75ghz OC runs smoothly with auto settings. I know each CPU has its own characteristics, so it’s important to determine the right tolerances. After some experimentation, I achieved a stable 4.75ghz overclock, but I started experiencing crashes once I went beyond that speed. I adjusted voltages incrementally and tried different settings, but stability remained an issue.
I encountered boot crashes when reverting to previous configurations, and memory management errors appeared during startup after manually tweaking timings. Eventually, I switched back to auto tuning, which limited me to around 1.5v DDR3 17xx or so, and the CPU only reached 4.5ghz.
I’m aiming for a 5ghz target with the equipment I have, as others have succeeded. I’d appreciate more advice on voltage and memory timings—would it be worth trying DDR2400? Setting it to 2400 would allow me to underclock rather than overclock 1866, which seems more feasible. Upgrading to a water cooler helped me hit 4.9ghz at DDR3 2400.
The memory controller's speed of 1866 MHz means anything faster than that is overclocking and increases load on the CPU. It might also need a higher voltage.
The memory controller runs at 1866 MHz, which means anything above that is overclocking and increases stress on the CPU. It might also need a higher voltage. If I gradually increase the vCore by 0.5 at a time, my temperatures stay around 44°C to 58°C, while the package stays near 52°C max. It seems the central heating might be off and I could be getting cold. The voltage tuner should be adjusted in small steps—around 0.00625 increments in offset mode—or set manually to a fixed value like 1.4V. My auto-vcore is about 1.2727, even with overclocking, and it reaches around 1.3 in Windows. I’m unsure exactly how close my temps are to the limit, but I used a MX-2 chip with the pea method and the heatsink is securely attached.
Is your system utilizing AMD Overdrive for performance tracking?
I think the issue with the dram timings might be related to the current setup. The temperature was close to the maximum allowed at 59°C per CPU per minute, and the package size was 44°C. I plan to increase the frequency to 4.9 GHz with the 'jet fan' running at full speed.
I notice a roughly ten-point boost per 100 MHz on the CPU benchmark (1360-70 single 4580 multi at 4.83 GHz). The memory runs at 1866 MHz with a 200ms clock speed and a 24 CPU multiplier.
I experienced a lockup around one minute into Windows when I ran the system at 4.83 GHz with turbo enabled, but it stabilized and the multiplier reached around 4650.
There seems to be room for improvement by adjusting the stock fan near the AMD cooler, which is currently at 39°C/46°C max at 4.9 GHz and hasn’t locked up.
Vcore readings are between 1.356 and 1.368, with a temperature range of 29°C minimum to 43°C maximum.
Perhaps a more suitable fan for the Arctic freezer could be needed instead of the original setup.
The benchmarks show a lockup when turbo was on, but it resolved after adjusting the Vcore and disabling high performance computing.
Single core bench and multi bench results were recorded at 4.9 GHz with turbo off.
The voltage at 1.3v under load isn't sufficient for a 4.5ghz+ overclock. You might reach around 1.36v in the BIOS and set g llc to high yocacvoubt for any voltage drop issues—this shouldn't be visible on the board. Don't worry about VRM cooling; the MOSFETs here are of good quality and can manage 1.4v+ easily. Your RAM seems to be functioning properly—you've done everything correctly by overspeccing it and setting the base frequency to 1866MHz before starting the FSB. It would be better to focus on multiplier overclocking only up to 4.3/4.4ghz first before attempting FSB overclocking. This approach usually leads to better stability.
Just meant llc mate (load line calibration) it's an option in bios to add voltage under heavy load over the manual voltage that's been set.
Setting an excessive manual voltage instead results in lower voltage and temperatures at lighter loads.
Avoid using any oc options in overdrive seriously, it's useful for monitoring but not reliable beyond minor novice overclocking, which isn't your case.
Configure your base CPU voltage to 1.4v, set your llc to one step below the maximum, if the llc is in percentages it should be around 33%.
Run a stress test and check how close the CPU ID or cpu-z reads to your manually set voltage—overdrive doesn't display load or overclocked voltages, only the stock baseline programmed into the chip die.