F5F Stay Refreshed Power Users Overclocking The solution was unstable during AVX Prime95 stress tests.

The solution was unstable during AVX Prime95 stress tests.

The solution was unstable during AVX Prime95 stress tests.

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J
JordanFFA
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08-03-2018, 02:48 AM
#11
Thanks for your response! I believe I’ve received a faulty chip. To achieve 5.0GHZ with LLC at level 4 and an uncore of 4.7 for optimal stability, I need a lower voltage than what you mentioned. If I run Prime95 non-AVX and then start a game at the same time, the extra load would likely cause the system to fail. The 1.34 value is essential for full stability without using AVX. I’m currently running XMP with an MSI MPG Z390 gaming pro carbon AC.

With AVX enabled, I notice my temperatures spike to 100°C after about 20 seconds. With a -2 offset, I can push past 20 seconds, but the temps still reach 100°C after a few minutes, even though the Vcore drops significantly during AVX operations.

For fan curves, I use Icue with pump and extreme settings; they hit max speed at 80°C. You said your cooling lets you reach 5.2 at low voltage. It seems the voltage limits are tied to each chip’s requirements, which is a bit of a lottery. You suggest that better cooling could let me run at lower voltages, possibly up to 1.35 with AVX and no offset, without damaging the chip. That would be great, but I’ve never heard anyone claim stability at much lower Vcore before.

I mainly use my rig for gaming and haven’t seen my chip exceed 65°C during sessions. The average is around 50°C, so I probably won’t need AVX or push my system that hard. Maybe I’m just testing if there’s anything better I can do—or maybe I’ve just hit a bad draw in the chip lottery.
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J
JordanFFA
08-03-2018, 02:48 AM #11

Thanks for your response! I believe I’ve received a faulty chip. To achieve 5.0GHZ with LLC at level 4 and an uncore of 4.7 for optimal stability, I need a lower voltage than what you mentioned. If I run Prime95 non-AVX and then start a game at the same time, the extra load would likely cause the system to fail. The 1.34 value is essential for full stability without using AVX. I’m currently running XMP with an MSI MPG Z390 gaming pro carbon AC.

With AVX enabled, I notice my temperatures spike to 100°C after about 20 seconds. With a -2 offset, I can push past 20 seconds, but the temps still reach 100°C after a few minutes, even though the Vcore drops significantly during AVX operations.

For fan curves, I use Icue with pump and extreme settings; they hit max speed at 80°C. You said your cooling lets you reach 5.2 at low voltage. It seems the voltage limits are tied to each chip’s requirements, which is a bit of a lottery. You suggest that better cooling could let me run at lower voltages, possibly up to 1.35 with AVX and no offset, without damaging the chip. That would be great, but I’ve never heard anyone claim stability at much lower Vcore before.

I mainly use my rig for gaming and haven’t seen my chip exceed 65°C during sessions. The average is around 50°C, so I probably won’t need AVX or push my system that hard. Maybe I’m just testing if there’s anything better I can do—or maybe I’ve just hit a bad draw in the chip lottery.

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