ianarcad
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I think I am having an issue with my new H370 stinger motherboard - CPUs are running significantly higher in this board than in other boards. I have access to a number of different boards and CPUs and have some time to test. Right now it is running with a i5-8400 and still gets warm under peak load - about 84C with an EVGA AIO cooler. The i5-9400F has the same result. However a i7-8700 will get to 90C right away and keep climbing, and an i7-9700 will hit 100C almost immediately. My other hardware is standard - an Adata SSD, an EVGA 1080 Hybrid (also liquid cooled), and 16GB DDR4 RAM. It is mini-ITX but with two 120mm radiators it is difficult to think that cooling isn't adequate. The BIOS is updated and I am using MSI Afterburner / Kombuster to test. The only way I could get the i7-9700 to work for any length of time was to turn turbo off - but that is a big hit to performance (from 4.5ghz down to 3.0ghz). I have tested the i7-8700 and i7-9700 in an MSI B360 board using a stock cooler and have not seen any similar issues. The i7-9700 is also delidded and has run for many hours under load using a similar Asetek AIO cooler. It would get hot - like the 80s - but never to 100C like it does almost instantly in the H370. I have read that it may be an issue with the motherboard either providing too much power or running the CPU at too high a frequency. With the H370 board my options for changing things are pretty limited and it is hard to test this, but I can report the numbers from Afterburner if that is helpful. I also have access to other boards, including another H370 Stinger and Z370 EVGA mATX board and a few boards from other manufacturers and will do some more testing this week as time permits. Thanks for reading, and any and all advice appreciated.
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bob16314
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Re: H370 Stinger heat issues with i7-8700 and i7-9700 - any ideas?
2020/07/08 06:45:37
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See what the Vcore is under load, that's very important. You can use CPU-Z or HWiNFO for real-time monitoring.
* Corsair Obsidian 450D Mid-Tower - Airflow Edition * ASUS ROG Maximus X Hero (Wi-Fi AC) * Intel i7-8700K @ 5.0 GHz * 16GB G.SKILL Trident Z 4133MHz * Sabrent Rocket 1TB M.2 SSD * WD Black 500 GB HDD * Seasonic M12 II 750W * Corsair H115i Elite Capellix 280mm * EVGA GTX 760 SC * Win7 Home/Win10 Home * "Whatever it takes, as long as it works" - Me
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ianarcad
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Re: H370 Stinger heat issues with i7-8700 and i7-9700 - any ideas?
2020/07/08 11:52:06
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Ok - thanks I will check that. What should the Vcore be, ideally? This morning I was able to run the i7-8700 in a Gigabyte H310N ITX board with no issues. I will try my second H370 stinger board next.
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bob16314
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Re: H370 Stinger heat issues with i7-8700 and i7-9700 - any ideas?
2020/07/08 18:38:50
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ianarcad What should the Vcore be, ideally?
Mainly depends on the quality of the CPU, and mobo differences, and BIOS differences..Max default is usually in the 1.2v neighborhood..Mine runs at 1.232v max at default BIOS settings..Anything over default frequency will vary.
* Corsair Obsidian 450D Mid-Tower - Airflow Edition * ASUS ROG Maximus X Hero (Wi-Fi AC) * Intel i7-8700K @ 5.0 GHz * 16GB G.SKILL Trident Z 4133MHz * Sabrent Rocket 1TB M.2 SSD * WD Black 500 GB HDD * Seasonic M12 II 750W * Corsair H115i Elite Capellix 280mm * EVGA GTX 760 SC * Win7 Home/Win10 Home * "Whatever it takes, as long as it works" - Me
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ianarcad
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Re: H370 Stinger heat issues with i7-8700 and i7-9700 - any ideas?
2020/07/18 16:14:07
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Sorry for the long wait. I have confirmed the duplicated the same issue on a second H370 Stinger board out of the box. With an i7-8700 installed, it immediately runs the CPU to 100C in a benchmark test using a stock cooler. I can't test it with an i7-9700 because the BIOS isn't updated. The i7-8700 does work on an EVGA Z370 board. I also have an Adata swordfish SSD installed (in both systems), I will try it without the SSD and see if that could be related. The SSD has a thermal pad that is close to the CPU and could be locking heat in. I did run CPU-Z but didn't see where I could check the CPU voltage - I will look again when I get a chance.
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bob16314
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Re: H370 Stinger heat issues with i7-8700 and i7-9700 - any ideas?
2020/07/18 22:24:11
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See the attached CPU-Z image. Core Voltage = Vcore
Attached Image(s)
* Corsair Obsidian 450D Mid-Tower - Airflow Edition * ASUS ROG Maximus X Hero (Wi-Fi AC) * Intel i7-8700K @ 5.0 GHz * 16GB G.SKILL Trident Z 4133MHz * Sabrent Rocket 1TB M.2 SSD * WD Black 500 GB HDD * Seasonic M12 II 750W * Corsair H115i Elite Capellix 280mm * EVGA GTX 760 SC * Win7 Home/Win10 Home * "Whatever it takes, as long as it works" - Me
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ianarcad
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Re: H370 Stinger heat issues with i7-8700 and i7-9700 - any ideas?
2020/07/19 23:20:20
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Thanks - I have already filed a support ticket - will post as to how it goes.
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ianarcad
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Re: H370 Stinger heat issues with i7-8700 and i7-9700 - any ideas?
2020/07/20 02:55:06
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I went ahead and ran the voltage comparisons. On a Gigabyte B360 motherboard, the voltage for an i7-8700 under load goes to a high of 1.044 or 1.068 but on the H370 stringer it goes up to 1.22.
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bob16314
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Re: H370 Stinger heat issues with i7-8700 and i7-9700 - any ideas?
2020/07/20 09:58:13
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Nothing at all wrong with 1.22 Vcore under load..Running a pass of Intel Burn Test gets me max core temps of 43-50C with cores locked at 4.7GHz and other BIOS settings at defaults..I delidded and used TG Conductonaut though..If I remember correctly, when I first got it, it would top out at about 70C and that was with a Corsair H80i cooler. Are you sure your AIO is set up to run at 100% in the BIOS and it's OK?..I'm thinking it has to be a cooler/mounting issue..Absolutely no way it should be hitting 100C with only 1.22 Vcore.
* Corsair Obsidian 450D Mid-Tower - Airflow Edition * ASUS ROG Maximus X Hero (Wi-Fi AC) * Intel i7-8700K @ 5.0 GHz * 16GB G.SKILL Trident Z 4133MHz * Sabrent Rocket 1TB M.2 SSD * WD Black 500 GB HDD * Seasonic M12 II 750W * Corsair H115i Elite Capellix 280mm * EVGA GTX 760 SC * Win7 Home/Win10 Home * "Whatever it takes, as long as it works" - Me
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ianarcad
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Re: H370 Stinger heat issues with i7-8700 and i7-9700 - any ideas?
2020/07/20 14:19:39
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I don't think it is a cooler issue - I have a whole stack of Intel stock coolers and then some AIOs and I run this stuff on an open test bench. I do transcoding benchmarks that take about 15 minutes and have never had cooling issues as far as iI can tell. The gigabyte board definitely does much better with the lower vcore. I am testing more boards now to see if they have the same vcore differences and if that affects the heat. I tested another Gigabyte board (B365) and it also had the lower vcore and worked well. A MSI board (B365) had almost the same vcore (about 1.2) and also couldn't complete the test without getting to 100C. My EVGA Z370 also had the high vcore and couldn't complete the test. I wonder if it's possible that I have both.an i7-8700 and i7-9700 that just can't run at a high vcore? I only have one more i7-8700 but I guess I can test that.
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bob16314
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Re: H370 Stinger heat issues with i7-8700 and i7-9700 - any ideas?
2020/07/20 20:15:21
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I dunno, man.. IntelBurnTest and the Intel Processor Diagnostic Tool are my go-to stress/stability tests, try those..Never had my cores get anywhere near 100C, ever. It could be an AVX workload causing your sky-high temps..You might have an AVX offset in the BIOS you can change..My board defaults to Level 3 which means it'll drop the core ratio 300MHz (4.7GHz to 4.4GHz for example) when an AVX workload is detected..But still, I don't think your core temps should be that high with that Vcore and at default frequency (4.7GHz) even when running AVX workloads.
* Corsair Obsidian 450D Mid-Tower - Airflow Edition * ASUS ROG Maximus X Hero (Wi-Fi AC) * Intel i7-8700K @ 5.0 GHz * 16GB G.SKILL Trident Z 4133MHz * Sabrent Rocket 1TB M.2 SSD * WD Black 500 GB HDD * Seasonic M12 II 750W * Corsair H115i Elite Capellix 280mm * EVGA GTX 760 SC * Win7 Home/Win10 Home * "Whatever it takes, as long as it works" - Me
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ianarcad
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Re: H370 Stinger heat issues with i7-8700 and i7-9700 - any ideas?
2020/07/21 15:45:03
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EVGA said it is most likely a problem with my cooling and I dd read online about a weak Intel CPU stock cooler that would get to 100C immediately for some higher end processors. I will look into the cooling angle more and will check out those stress tests that you mentioned. Thanks for the advice.
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ianarcad
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Re: H370 Stinger heat issues with i7-8700 and i7-9700 - any ideas?
2020/07/21 22:08:44
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I used a different CPU fan (copper heatpipe style) and a different CPU (another i7-8700) and got a totally different results - temps in the 60C range. So it is possible that either my specific CPU runs hot and/or my Intel stock fan is bad. The fan is brand new but it came with an i5 so maybe it is inadequate or just defective. I think I have a path to a resolution here and it's not the board that's an issue, but I'll report back anyway once I figure out the exact cause.
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bob16314
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Re: H370 Stinger heat issues with i7-8700 and i7-9700 - any ideas?
2020/07/21 23:34:00
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Like I said in Post #9, I'm thinking it has to be a cooler/mounting issue..Temps in the 60C range now are great.
It's extremely unlikely, even unheard of, that the Thermal Paste under the IHS of the 8700 has been improperly applied by Intel.
And if you use an AIO cooler and it's pump is powered by a mobo fan header, you have to set that header to 100% in the BIOS.
* Corsair Obsidian 450D Mid-Tower - Airflow Edition * ASUS ROG Maximus X Hero (Wi-Fi AC) * Intel i7-8700K @ 5.0 GHz * 16GB G.SKILL Trident Z 4133MHz * Sabrent Rocket 1TB M.2 SSD * WD Black 500 GB HDD * Seasonic M12 II 750W * Corsair H115i Elite Capellix 280mm * EVGA GTX 760 SC * Win7 Home/Win10 Home * "Whatever it takes, as long as it works" - Me
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