Windows 10: 8GB (3.9GB Usable), Windows 10 x64 Bit

RPM said:

i tried install memory 1x4GB, the port DDR3_A1 work fine can boot, but port DDR3_B1 won't boot and tried install different memory still same won't boot.(

Fafhrd said:

It would appear that one of the memory slots is faulty (DDR3_B1). If your motherboard is under warranty, you may be able to exchange it, otherwise the board needs replacing.

I'm thinking the same. However, what's weird is the board is actually detecting the module in that is sees all 8 gig, but as noted is only using half. The other baffling thing is Hardware reserved is using 4gig. I would think if the board had a problem reading the memory it wouldn't be seen, nor "reserved"

All that said, I need to ask, are these matched memory modules? If there is a mismatch, are both modules the same voltage rating?

EDIT: OP really needs to check their memory module as I notice the memory is running in single channel when the board they have support dual channel memory - A58ML Ver. 7.0/7.2/7.4/7.A. Plus the memory the OP lists states it's 1600MHz, yet it's only running at 789.4, single channel. Should be dual channel (2 x 800).

You need to determine what the motherboard requires and use that. The owners manual should tell you what the RAM requirements.

In theory any combination of compatible memory modules should work. But things don't always work that way in the real world. Any mismatch in module size, speed, or other specifications can cause problems. Even modules with identical specifications from different manufacturers may not work. Sometimes modules will work alone, but they will not work together. OEM computers tend to be rather picky about the RAM modules that will work and have few if any options to deal with problems.

CPU-Z is just showing the memory modules it has identified. This does not imply that the modules are fully compatible with the computer or with each other or even fully functional, only that they can be identified. For technical reasons it is not possible to test memory modules while Windows is running.

Please open device manager > click view > click resource by connection > expand memory > use snipping tool > post image into forum.

LMiller7 said:

In theory any combination of compatible memory modules should work. But things don't always work that way in the real world. Any mismatch in module size, speed, or other specifications can cause problems. Even modules with identical specifications from different manufacturers may not work. Sometimes modules will work alone, but they will not work together. OEM computers tend to be rather picky about the RAM modules that will work and have few if any options to deal with problems.

Nope, the modules need to match voltage wise, otherwise issues arise. Example, if you have a module that is rated at 1.35 volts, and one at 1.5 volts running at the same time, one is going to be either under or over powered, and therefore become faulty or simply not work. Yes, you could have different vendors, but the voltages better match.

See this post here - Installed RAM 16GB (7.18 usable)

sygnus21 said:

Nope, the modules need to match voltage wise, otherwise issues arise. Example, if you have a module that is rated at 1.35 volts, and one at 1.5 volts running at the same time, one is going to be either under or over powered, and therefore become faulty or simply not work. Yes, you could have different vendors, but the voltages better match.

See this post here - Installed RAM 16GB (7.18 usable)

Of course voltages must match. I didn't explicitly mention this but it is included in "other specifications" which I did mention.