Very strange problem

JCB1226 · Aug 1, 2014

Hello,
I have a very strange problem that has stumped me for 2 day's.
I will provide my system component's and then describe the problem and the possible solutions I have tried to resolve this issue.

Mobo- ASROCK 990FX Extreme 9 Bios Version (P1.70)
CPU- AMD FX-8120 Zambezi @3.1 Ghz
Memory- 16GB Corsair Vengence LP @ 1600 XMP
GPU- Evga GTX 670 2GB

The problem is the GTX 670 is only operating @ x8 no matter what type of load I put on it. I had to RMA my original card cause of an issue and have only been using this one for 2 month's and was getting random freezes and restarts. I decided to re-install windows 7 64 bit and noticed that the card was running @ x8, I cleaned the card/slot with air and re-seated the 670 once again same story. So I decided to pull the card and install a Radeon HD7850 to see if it would do the same. Guess what it operated @x16.

So my question is what could cause this card (GTX670) to only operate @ x8 when it's only 2 month's old and I do not OC anything.

Thank's ,
Josh

delellod123 · Aug 1, 2014

what are you using to determine the GPU is using x8?

delellod123 · Aug 1, 2014

if you are using software, like GPUz or CPUz or anything like that, You need to stress the GPU in order for it to utilize PCIE 16x. When running idle or not using a lot of power, lower bandwidth PCIE is utilized.

JCB1226 · Aug 1, 2014

delellod123 :

I have used the following program's .
GPU-Z 0.7.8 W/ Render Test
CPU-Z 1.70.0 x64
Piriform Speccy
NV Inspector
Heaven Unigine
EVGA OC Scanner

The only thing that change's is it goes from PCI-E 2.0x16 @x8 1.1 to 2.0 on load.

delellod123 · Aug 1, 2014

It should fluctuate, depending of the amount of bandwidth needed. Is PCIE GEN3 enabled in your BIOS?

JCB1226 · Aug 1, 2014

I have no such option in the BIOS.
I'm fairly sure I do not have any GEN3 slot's .
◾4 PCIe 2.0 x16 Slots, Support NVIDIA® 3-Way SLI, AMD 3-Way CrossFireX™

To save a bit of trouble I am plugged in to the proper slot for x16 single card operation.
I had noticed it does change but never goes above x8 operation.

delellod123 · Aug 1, 2014

your right, sorry, i forgot there is no 3.0 Support on the AMD boards.

Anyway, the only thing happening is as I had wrote before, PCIE bandwidth is changing when it needs to.

JCB1226 · Aug 1, 2014

Idle->

Load->

From CPU-Z Text Report->
Chipset
-------------------------------------------------------------------------

Northbridge AMD RD9x0 rev. 02
Southbridge AMD SB910/950 rev. 40
Graphic Interface PCI-Express
PCI-E Link Width x8
PCI-E Max Link Width x16
Memory Type DDR3
Memory Size 16 GBytes
Channels Dual
Memory Frequency 665.1 MHz (3:10)
CAS# latency (CL) 9.0
RAS# to CAS# delay (tRCD) 9
RAS# Precharge (tRP) 9
Cycle Time (tRAS) 24
Bank Cycle Time (tRC) 34
Uncore Frequency 2195.2 MHz

It never changes from x8 to x16, I just tested the card in another machine and same result's. Maybe another faulty card ?

delellod123 · Aug 4, 2014

cpuz is reporting PCIE @ x8 too. After doing some reading, you may try disabling USB3 Boost in bios.

Also, do you have any other peripherals in other PCIE slots? like a sound card or wifi card etc...

JCB1226 · Aug 6, 2014

I don't have USB3 Boost, Only legacy support and the actual ports themselves. I disabled the USB3 but still no changes. I have a PCI X-Fi xtreme music wich I have been using for years. The only thing that I did see was My Ethernet (Onboard) Intel 82583V. When looking at the Device information it states the Service Property as *e1qexpress*. Not sure if this has anything to do with the problem I'm having.I read that some of the Intel drivers can cause problems. I disabled the LAN and still no change.

JCB1226 · Aug 6, 2014

I don't notice any performance issues related to this problem and I plan on getting another GTX 670 soon. I have noticed in the log's that the following error happens only when I game. Every 2 hour's or so not sure if it has any relation to the problem. I also ran memtest on all 16 gigs and no errors had been reported. All my hardware is new or tested for fault's, I have come to the realization it maybe a cpu issue , though I ran Prime 95 (Small FFT) if memory serve's me correct and no faults on that either. I'm at a loss for problem solving and have exhausted all routs except for replacing parts mainly the cpu. I had also tested my PSU and voltages are correct(Tested with MultiMeter) .

I hope this help's and maybe there are other tests to run, Thank's for the help also by the way. I appreciate a second opinion on troubles since I'm the only computer literate person in my house

.

Error Message ->> Event filter with query "SELECT * FROM __InstanceModificationEvent WITHIN 60 WHERE TargetInstance ISA "Win32_Processor" AND TargetInstance.LoadPercentage > 99" could not be reactivated in namespace "//./root/CIMV2" because of error 0x80041003. Events cannot be delivered through this filter until the problem is corrected.

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