Are high CPU temperatures affecting performance on another motherboard?
Are high CPU temperatures affecting performance on another motherboard?
I recently purchased a used
Asrock B550 Phantom Gaming 4
(non A/C version) from Ebay. Here's Newegg link for mobo:
https://www.newegg.com/asrock-b550-phant...iQNoL2hob8
After putting my pc back together with the new(used) mobo and turning my pc on, I noticed that the cpu was running above 50 degrees just while Idling. Running at 50 degrees in the bios and above 50 close to 60 if i started to put any lode on it in windows screen. My Cpu is an AM4 cpu with wraith stealth cooler.
My previous mobo was a Gigabyte one and the same CPU ran fine on that with temps much lower
, with same wraith cooler as well. No overclocking either.
I decided to run prime95 on it to see what it would do and the temps sky rocked to 95 degrees(is that why they call it prime 95? Lol) and it STAYED at 95 degrees without going down! Eventually quit the test after few mins to bring temps back down. Temps stayed around 60 for a bit.
After this, I went through the process of trying to figure out the issue:
1) I bought Corsair XTM70 extreme thermal paste and applied it in diff patterns including the way the product packaging recomended and old school little pea size dab. None of it really improved things much.
2)Updated bios. Didn't help.
3)reset the bios back to default. Didn't help.
After that, I began wondering if maybe there was something wrong with the Cpu so I swapped it out with my other AM4 cpu I keep as backup. Same issue, temps idle around 50+ degrees.
My pc case has lots of fans and airflow is good. Even ran it with side panel of computer off to get lots of ambient air.
My room is not hot but nice and cool so high ambient room temp isn't a factor.
I could really use some advice from you guys on what could be the issue. Did I get bad mobo?
P.S. I used HWMonitor and Asrock monitoring software to check the temps.
Not because MoBo has any defects, but because you skipped it. MoBo offers nearly the lowest VRM power, just 6 main phase VRMs (including a few without cooling). If it lacks enough phases to power the CPU, the VRM will overheat. This overheating leads the CPU to overheat, which then makes the VRM even hotter, forming a cycle of increasing temperature. See: https://www.youtube.com/watch?v=DOHkJtUkj8Y.
What CPU model are you using? It seems your system might be expecting a more modest processor, like a Ryzen 3, rather than the one MoBo supports.
Also, what was the condition of the previous MoBo?
50c idle performance is normal and the 5000 series works well up to 95c at full load. The 3000 series Ryzen 65c is suitable too. With a Wraith cooler, it wouldn't be a high-end CPU, but I plan to upgrade soon. In the meantime, consider lowering the voltage for better stability. At default settings, some higher voltage is allowed for stability since CPUs vary.
PS. Have you updated your BIOS?
I think you might have switched the paste between CPU and cooler.
MB works well with any 65W CPU and, given the presence of a Wraith cooler, it's probably not a low-power Ryzen model.
There are several high-performance AM4 processors that come with Wraith coolers. These include the R7 2700X, R7 3800X, R9 3900X, and R7 5800XT, all featuring a TDP of 105W. This is more than my i5-6600K which has a 95W TDP. Additionally, there are also 95W TDP AM4 models with Wraith coolers such as the R7 1700X, R7 1800X, R5 2600X, R5 3600X, and R5 3600XT.
It's quite typical during a CPU stress test, as the main goal is to test the CPU up to its boundaries.
In AMD chips, reaching the maximum temperature of +95°C occurs when thermal throttling activates. Other AMD models reach this threshold around +90°C or +89°C. Intel CPUs are usually rated for +100°C. Contemporary processors are built to approach these limits.
While running video conversions on my 7950X with a Noctua NH-D15 cooler, the CPU maintained a high temperature in the upper range of the eighties and low nineties Celsius for extended periods, as recorded by HWMonitor. The longest session lasted 36 hours.
Switching to a different motherboard could mean the BIOS default power limits for the CPU were altered compared to your previous setup—such as enabling PBO on the new board (if supported). This might account for increased heat generation.
There are various versions of the Wraith, but the Stealth model is the least powerful in this group. It's advisable to upgrade to a more robust option.
My 3800X was equipped with a Wraith Prism, which I replaced with a larger Noctua NH-D14. Eventually, I used the Prism with a 5600X on an MSI B550 Tomahawk board, and it performed well.
The Prism is rated at 105W, while the 5600X draws about 65W. The cooler handles this difference effectively.
If you're using a mid-range AM4 CPU on a B550 board, the limited VRM stages and small heatsinks aren't major issues. B550 boards are standard models not built for extreme overclocking with Liquid Nitrogen, so they're reasonably priced.
I wouldn't upgrade my 6-core 5600X B550 system to a 12-core 5900X or a16-core 5950X, even though the BIOS likely supports these higher-end chips. I opted for more capable boards with better VRMs for my 3800X and 7950X.
If your case provides sufficient space, consider a Thermalright cooler model. They're affordable and should be available on Amazon.
The Phantom Spirit 120 represents a significant improvement over the Wraith Stealth, but it may be excessive for a typical 65W CPU. You'll likely notice lower average temperatures with two 120mm fans before another stress test.
https://www.amazon.com/Thermalright-Phan...B0BNDTJVPL
I've also tried the SI-100, which has a more compact design and only one 120mm fan. Still adequate for a 65W or 95W CPU.
https://www.amazon.com/Thermalright-SI-1...B0BLBS7TD9
Hey everyone, thanks for the advice. My current CPU is a 6-core Ryzen 5 3600 in the motherboard slot, running at stock speeds without any overclocking. My old motherboard was a Gigabyte B450M DS3H (rev. 1.x). Here’s the link to its manufacturer page:
https://www.gigabyte.com/Motherboard/B45...-rev-1x#kf
I think I might have solved the problem, but I’m not sure. I’ll need more testing, probably this weekend. From the specs, the ASRock board should offer better quality and features compared to my previous one. According to online info, this board can handle even a 105W CPU as long as overclocking isn’t involved. I’ll share the results next weekend. I’ve been using it too much during work hours lately.
Asus represents a modest upgrade over Gigabyte MoBo. Gigabyte MoBo features 4+3 VRM without cooling on the chokes at all. Possibly, with better temperatures in older models, changes in the BIOS have led to higher temperatures this time, especially in CPU OC.
99% chance of too high CPU voltages in BIOS when left at defaults.
Non X 3600 is just 65W TDP and draws even less electrical power.
You didn't answer, did you change TIM paste with every switch of CPU and cooler?
Sorry, with each change I altered the thermal paste. What I discovered is that my motherboard's CPU settings offer several modes: "Eco/power saving", "stalled", and "performance". When I changed to the eco CPU temperature setting, idle temps were around 39-43 degrees, stalled mode was used, and higher temperatures were reached. In stalled mode, CPU temps reached 95 degrees. Performance mode gave the highest performance, though I suspect this was due to AMD turbo activating, causing most cores to exceed the stock 3.6GHz to 3.8GHz and surpass 4GHz.
I had my understanding reversed. I believed that switching to performance mode would increase CPU fan speed. I thought cooling the CPU more would come from this mode since RPMs increased there. I had no idea the RPMs rose because my PC was turbo-boosting the cores. Those three settings weren't even listed under overclocking. That's why they were so high in idle mode. I should have carefully reviewed the motherboard manual before making changes through the Asrock Windows app.
I still need to experiment to get it right, but man, I was running Prime95 in "Performance" mode. I don't usually overclock because I don't want to risk damaging my hardware.
I haven't used the computer in two nights, but I plan to test it after installing my new main CPU, a Ryzen 5700G. The older Ryzen 5 3600 was installed because the BIOS required flashing before it recognized the 5700G.