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milesuy

4GB RAM but only 3.2GB Usable

7 hours ago, milesuy said:

I found "Intel® Desktop Board D945PLNM" on the motherboard. This is the only marking I found on the motherboard. So this is a 945 chip?

 

It only allows me to select PCI or PCIE GPU, I don't think my PC has an iGPU. The BIOS settings are limited.

The board has the Intel 945PL express chipset, and is hard limited to 3.25 GB of memory. The only way to get around it is a different motherboard.

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Posted · Original PosterOP

I keep getting 3.2GB usable RAM and 770MB Hardware Reserved, but I installed 4GB RAM (2 x 2GB sticks).

I installed 64 bit version of Windows 10. I also tried going to "msconfig", and unchecking the "Max Memory".
 

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Posted · Original PosterOP
10 minutes ago, gloop said:

The 0.8gb of ram is kept for iGPU, etc. 

I have a Geforce 8400GS GPU. This PC also does not have an iGPU, since it does not have any display outputs from the motherboard.

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Posted · Original PosterOP

I tried removing one of the RAM sticks and it only uses 2.1MB for Hardware Reserved.BE0E45C8-1FEB-4F90-8AB9-13728FB059BE.thumb.jpeg.ca10bfc899fd73dd8f85f2ace7c58914.jpeg

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37 minutes ago, milesuy said:

I keep getting 3.2GB usable RAM and 770MB Hardware Reserved, but I installed 4GB RAM (2 x 2GB sticks).

I installed 64 bit version of Windows 10. I also tried going to "msconfig", and unchecking the "Max Memory".

What chipset is this Mobo? I'm smelling one of the older 945 based chips... which had a hard limit of 3.25 GB.


Main: AMD Ryzen 7 1700X, Nvidia GTX 780, 16 GB 3200 MT/s DDR4

Secondary: Intel Xeon X5670, Nvidia GTX 660, 24 GB 1333 MT/s DDR3

Server: Intel Xeon X5670, 60 GB 1333 MT/s DDR3-R

Laptop: Intel Core i5-3320M, 16 GB 1600 MT/s DDR3

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One of my PC has i7-4790(yes igpu)+GTX 745, which doesnt preserve any of the 8GBs. But the other one 2970WX(no igpu)+20800Ti preserves 135MB out of 64GBs. And a Dell notebook with 3500U+Vega8(igpu) prserves more than 2GBs out of 8.

Have no idea why but you can change this in system configuration, but I dunno what will happen afterwards

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Posted · Original PosterOP
7 hours ago, svmlegacy said:

What chipset is this Mobo? I'm smelling one of the older 945 based chips... which had a hard limit of 3.25 GB.

I found "Intel® Desktop Board D945PLNM" on the motherboard. This is the only marking I found on the motherboard. So this is a 945 chip?

 

5 hours ago, Zyleyus said:

One of my PC has i7-4790(yes igpu)+GTX 745, which doesnt preserve any of the 8GBs. But the other one 2970WX(no igpu)+20800Ti preserves 135MB out of 64GBs. And a Dell notebook with 3500U+Vega8(igpu) prserves more than 2GBs out of 8.

Have no idea why but you can change this in system configuration, but I dunno what will happen afterwards

It only allows me to select PCI or PCIE GPU, I don't think my PC has an iGPU. The BIOS settings are limited.

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Posted · Best Answer
7 hours ago, milesuy said:

I found "Intel® Desktop Board D945PLNM" on the motherboard. This is the only marking I found on the motherboard. So this is a 945 chip?

 

It only allows me to select PCI or PCIE GPU, I don't think my PC has an iGPU. The BIOS settings are limited.

The board has the Intel 945PL express chipset, and is hard limited to 3.25 GB of memory. The only way to get around it is a different motherboard.


Main: AMD Ryzen 7 1700X, Nvidia GTX 780, 16 GB 3200 MT/s DDR4

Secondary: Intel Xeon X5670, Nvidia GTX 660, 24 GB 1333 MT/s DDR3

Server: Intel Xeon X5670, 60 GB 1333 MT/s DDR3-R

Laptop: Intel Core i5-3320M, 16 GB 1600 MT/s DDR3

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On 6/20/2020 at 3:50 PM, milesuy said:

I found "Intel® Desktop Board D945PLNM" on the motherboard. This is the only marking I found on the motherboard. So this is a 945 chip?

 

It only allows me to select PCI or PCIE GPU, I don't think my PC has an iGPU. The BIOS settings are limited.

You don't change your system config in the bios tho, instead you press Windows+R and type in msconfig and then enter, you will have the option to change the RAM in there

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