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New Heatsink/fan installed, memory now shows 3.9 usable of 8 GB RAM installed, 4.1 hardware reserved (Windows 8.1)

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February 23, 2014 1:19:24 AM

First to start off, I've been doing research and attempting everything I could find on Google for the past 12 or so hours, and I've had no success.

I've gone to MSConfig and unchecked max memory.

I've reseated the CPU -and- RAM several times, inspecting them and the slots on the mobo each time.

I've gone into the BIOS and tried reverting to normal, modifying voltage outputs, and made sure memory mapping is enabled.

I've tried resetting CMOS by leaving the battery out for 5+ minutes.

My BIOS is up to date.

I'm running a 64-bit OS

I've inserted each stick into slot 1 by themselves to make sure both sticks boot up and show 4 GB available in the BIOS. They do.

When I check CPU-Z, regardless of which slots they're in, the memory shows as "single channel", not dual. I currently have them in slots 2 and 4, I've also tried 1 and 3, 1 and 2, 2 and 3, and 3 and 4.

Pictures:

Memory usage: http://imgur.com/lUGYwyi

DXDaig: http://imgur.com/NTgBzzB

Basic Information: http://imgur.com/Us4fF7i

Task Manager: http://imgur.com/tC3x5xb

Specs:

Mobo: ASUS M5A97 R2.0

RAM: 2x4 GB GSkill Ripjaw 240-pin DDR3 1333 (PC3 10666)

CPU: AMD FX 8320 8-core

Freshly installed CPU heatsink/fan: Cooler Master Hyper T4

PSU: Rosewill CAPSTONE-550 550W

GPU: GTX 650ti

So... yeah, I'm completely out of ideas and have no idea what else to try. I'd appreciate any help. The CPU is held down securely by the new heat sink, the pins are straight, and there's no compound on the pins or in the motherboard's CPU slot. The PSU plugs are all plugged in tight, and I've even re-inserted all of them to make sure. Again, everything was fine until I reinstalled the heatsink and new fan. When I was removing the 1st party noise-box fan that came with the 8320, it did pull the CPU out with the fan and I had to manually twist the CPU off the bottom of the heatsink, but no pins were damaged or bent. So again, help is appreciated!
a b } Memory
February 23, 2014 7:39:02 AM

Welcome to Tom's Hardware Forums!

I found some info here: http://support.microsoft.com/kb/978610 (I know that you have Win8.1)

I hope you don't have a bad motherboard.
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February 23, 2014 12:40:51 PM

I appreciate the response, I've gone through that checklist as well though. The ONLY thing I can think of is my CPU is seated wrong, but it slips in to place as normal and the lock still holds it in place. Uuuugh this is infuriating.
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a b } Memory
February 23, 2014 12:54:17 PM

MarkMcC2950 said:
I appreciate the response, I've gone through that checklist as well though. The ONLY thing I can think of is my CPU is seated wrong, but it slips in to place as normal and the lock still holds it in place. Uuuugh this is infuriating.


If you think so, go ahead and re-seat the CPU/heatsink installation, including the CPU install.
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February 23, 2014 1:30:01 PM

I've redone that a few times already and nothing's changed, but here's my question. The fan that came with the processor was a PAIN to install, like it took a lot of pressure to get both sides clipped on for the heatsink over the CPU, meaning the CPU was just squished down against the mobo under pressure, and this new heatsink requires very little pressure to clip into place. It holds in place and doesn't move, but is it possible the CPU not being held down tight enough could cause the RAM to be labeled as "hardware reserved"?

Also, what do you mean by "including the CPU install"?
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a b } Memory
February 23, 2014 1:40:12 PM

The CPU has a zero-insertion-force install in the motherboard socket. Just to eliminate concerns, re-do this step.

Use a thin, even layer of thermal compound like Arctic Silver and install the heatsink per recommendations from Arctic Silver's website. The heatsink screws must be evenly tightened in a cross pattern. The springs limit the hold-down force.

By "CPU install" I mean physically re-install the CPU into the motherboard socket and fasten using the lever.
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February 23, 2014 10:03:05 PM

I don't believe my heatsink has any screws to tighten down. The AMD motherboard I have is literally just a metal bar that clips to a plastic piece put onto the mobo by default, then you push a lever down to pull up on the plastic and clamp it into place. And yeah, every time I install the CPU, I just lightly drop it in until it fits in, no pushing or anything. I'm so amazingly confused.
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a b } Memory
February 24, 2014 4:00:39 AM

Sometimes the hold-down clips do not engage very well. Ensure that the heatsink is securely mounted on to the CPU and the correct (very thin and even) amount of Arctic Silver 5 thermal compound is applied. Also, please check the temps using RealTemp.
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