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Solved Half System Reserved Memory + Half Memory Speed

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The RAM has never been a suspect tbh as it works as it should albeit only at 50% of what it is capable of but that is not down to the RAM itself.

The results of your testing using an alternative CPU do point towards the MB and primarily the BIOS chip I`m afraid.
 
Working on finding another working motherboard. Already got another bad one that had no power to the x16 lanes. That one was an MSI 970a-g43. Next victim will be a Biostar TA970XE. Don’t really like this one though since it only has a 4pin CPU power and no front USB 3.0 header. Will post once I have another good motherboard running.
 
Another Motherboard issue... No video output and all the fans turn on so I know I have some kind of power on the x16 lanes. (The Biostar TA970XE ) This one gives me beep codes though. It beeps 4 times and then has a messed up beep and then beeps 13 times. Looked up in the manual. 4 is "Flash programming successful" 5 is "File read error" and 13 is "BIOS ROM image mismatch (file layout does not match image present in flash device)". According to the debug LED's there is a "VGA Error." This is with literally just ATX power, CPU power, Athlon CPU (because this board has to have a BIOS update to accept Vishera CPU's), 1 stick of RAM in the correct slot, the R7 250 with HDMI cable, and a keyboard plugged in. Using the button on the motherboard to power on and off. Kind of fed up to be honest... I'm putting it all away and gonna try again tomorrow. Anyone wanna recycle some gold? Lol.
 
Well, I finally got another board. MSI 990FXA-GD80 V2. Brand new. Opened, but legitimately brand new. Got full RAM now, no half reserved. However, it's running at half speed still. Here's the speccy. I know the argument for the double data rate will be said, but again, I haven't had a single "userbenchmark" come up with just the single data rate. It always shows the doubled rate when the RAM is working correctly.


This speccy is with the most up-to-date BIOS.
 
Speccy is reporting the RAM correctly, 2 Xs 799MHz = 1598MHz, not quite 1600MHz but better than the 50% that you were getting.

Then why does windows and userbenchmark report it as only 800 when they normally report it as the doubled rate?

Please refer to our previous discussion...

This is a similar situation. I've never had a PC report on either Windows in the task manager or on userbenchmark as the single data rate.
I could test this on literally 7 different PCs right now and have the doubled data rate show on both Windows task manager and userbenchmark right now to prove it if needed.
 
What does it say in the MBs BIOS.

Same question regarding Speccy here

If you run CPU-Z that should report both 1600 and 800MHz or the possibly already reported 799MHz as shown in Speccy.

I fix things so don`t need to get involved in benchmarks and can`t even name you a single benchmarking tool tbh.
 
What does it say in the MBs BIOS.

Same question regarding Speccy here

If you run CPU-Z that should report both 1600 and 800MHz or the possibly already reported 799MHz as shown in Speccy.

I fix things so don`t need to get involved in benchmarks and can`t even name you a single benchmarking tool tbh.
CPU-Z doesn't report the doubled rate at all on any rig as I've seen. Just the single data rate (799 actually as you said). In the BIOS for the MB it shows the RAM specs as 1600 MHz. Unsure if it shows a different actual clock speed. I'll have to check that when I get home.

What about windows task manager? Have you ever had that show the ram speed as the single data rate?
 
See attachment below;

Not using the desktop atm but just checked on the notebook and Task Manager does not say single or double.
 

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On CPU-Z I have a newer version so it shows the PC3-12800 instead of the DDR3-1600. Not sure what it's showing on the rig in question.

As far as the task manager goes, see attached. On this rig I have 1600 MHz clocked down to 1333 cause it's an older AM3 rig. On the rig in question it shows 800 MHz where it is circled. Every other rig I own reports the doubled rate in this section.
RAM issues.png
 
On the rig in question - which has 1600 MHz RAM - in Windows task manager it shows the RAM as 800 MHz speed. On the rig in question on userbenchmark it shows the RAM as 800 MHz speed.
On a different rig with 1600 MHz RAM Windows task manager and userbenchmark both show 1600 MHz.
On two different rigs with 2666 MHz RAM (One Ryzen one Intel) Windows task manager and userbenchmark both show 2666 MHz.
On the rig I am typing from, the ram is 1600 MHz RAM and on Windows task manager and userbenchmark both show 1333 MHz (because the MOBO slows it down).

My concern is this: Why is it showing 800 MHz (which is half of what it should be) on Windows task manager and userbenchmark on ONLY the rig in question?

Also referring to the other thread I posted in - which I mentioned a few posts ago in this thread - on that rig (which is the AMD rig I mention above in this post) the memory was clocking as 1333 MHz in Windows task manager and userbenchmark, but was a happy 2666 MHz in the BIOS and was showing up like everything was normal in CPU-Z and Speccy. On that rig after I updated the BIOS, Windows task manager and userbenchmark both began reporting the RAM as 2666 MHz. What changed before and after the BIOS update in this situation that made Windows task manager and userbenchmark start reporting the RAM as running at 2666 MHz?
 
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