F5F Stay Refreshed Hardware Desktop Available memory isn't what it needs to be

Available memory isn't what it needs to be

Available memory isn't what it needs to be

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bouchermuse
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10-01-2016, 09:28 AM
#1
Hey, I've faced this challenge too. To be frank, I seem to have exhausted my options and haven't found any more components to evaluate. My setup is running Linux (Ubuntu Studio specifically), but I'm unsure if the issue lies with the software itself since I see the same details when booting from a live USB. The situation: I've installed four 4GB DDR3 1600MHz modules. In the UEFI/BIOS they appear when using the "sudo lshw | grep -A 8 bank" command, but the operating system reports only about 7.5GB of memory. This problem continues for any amount over 8GB, whether it's two 8GB sticks or four 8GB sticks at 1600Mhz—speed and timing don't affect it. Also, the 8GB modules are 1.5V while the 4GB ones are 1.65V, so mixing capacities hasn't been done. OS details: Linux x86-64 (Ubuntu Studio), system age is a few days, pre-installed on live USB, CPU is AMD FX 9590 with watercooling and a Thermal Grizzly Kryonaut TIM card, motherboard from Gigabyte, power supply from Antec. The hardware list includes some commands to show the issue.
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bouchermuse
10-01-2016, 09:28 AM #1

Hey, I've faced this challenge too. To be frank, I seem to have exhausted my options and haven't found any more components to evaluate. My setup is running Linux (Ubuntu Studio specifically), but I'm unsure if the issue lies with the software itself since I see the same details when booting from a live USB. The situation: I've installed four 4GB DDR3 1600MHz modules. In the UEFI/BIOS they appear when using the "sudo lshw | grep -A 8 bank" command, but the operating system reports only about 7.5GB of memory. This problem continues for any amount over 8GB, whether it's two 8GB sticks or four 8GB sticks at 1600Mhz—speed and timing don't affect it. Also, the 8GB modules are 1.5V while the 4GB ones are 1.65V, so mixing capacities hasn't been done. OS details: Linux x86-64 (Ubuntu Studio), system age is a few days, pre-installed on live USB, CPU is AMD FX 9590 with watercooling and a Thermal Grizzly Kryonaut TIM card, motherboard from Gigabyte, power supply from Antec. The hardware list includes some commands to show the issue.

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csige791
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10-01-2016, 10:19 AM
#2
Yeah, that's the direction I was thinking also. I didn't say before but I have been a technician/engineer in the IT industry for over 20 years and have dealt with lots of similar cases, all of which got solved eventually. But thought it was worth asking on here as thousands of minds is better than 1, plus it always seams to be a pain when its your own hardware lol. Thanks for your time and help @8tg
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csige791
10-01-2016, 10:19 AM #2

Yeah, that's the direction I was thinking also. I didn't say before but I have been a technician/engineer in the IT industry for over 20 years and have dealt with lots of similar cases, all of which got solved eventually. But thought it was worth asking on here as thousands of minds is better than 1, plus it always seams to be a pain when its your own hardware lol. Thanks for your time and help @8tg

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Teemingtoast
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10-18-2016, 06:45 AM
#3
Here’s a revised version of your update:

I’ve tried all possible solutions—refreshing the BIOS/UEFI, rebuilding the system, reinstalling the operating system, and adjusting hardware settings where feasible. Still nothing resolved. I was about to give up and sleep early since it was 3 a.m., but then I decided to tackle everything at once instead of one by one. That way, I could identify issues more easily. Suddenly, everything functioned properly—full 32GB RAM detected (four 8GB modules). The only performance bottleneck remains the CPU, which is capped at 4.4GHz without boost. It’s not at its ideal level, and it might be due to the CPU or motherboard. Still, it works now. Thanks again!
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Teemingtoast
10-18-2016, 06:45 AM #3

Here’s a revised version of your update:

I’ve tried all possible solutions—refreshing the BIOS/UEFI, rebuilding the system, reinstalling the operating system, and adjusting hardware settings where feasible. Still nothing resolved. I was about to give up and sleep early since it was 3 a.m., but then I decided to tackle everything at once instead of one by one. That way, I could identify issues more easily. Suddenly, everything functioned properly—full 32GB RAM detected (four 8GB modules). The only performance bottleneck remains the CPU, which is capped at 4.4GHz without boost. It’s not at its ideal level, and it might be due to the CPU or motherboard. Still, it works now. Thanks again!

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