Topic Title: Advice needed w video/ram issue. A10-5800K using integrated graphics.
Topic Summary: Can't run fast RAM above 1600mhz w/out video blinking out. Reapetedly.
Created On: 01/12/2013 04:48 PM
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 01/12/2013 04:48 PM
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I've tried three kits of RAM, different brands, two 1866 and one 2133.

The first kit had errors and I RMA'd it but memtest86+ passed the others with flying colores. Neither of them will run cleanly above their default. For the 4GB Ballistix 1866, that's 1333. (!) For the 8GB Ripsaws it's 1600.

Right now I've got the Ripsaws @1866 w/relaxed timings and my video is still dropping out for 2-3 seconds at a time, once every ten minutes or so, on average.

I really want to run fast ram with the iGPU. Otherwise I've wasted my time and money locking myself into this cpu socket. This isn't what I payed for.


If I run the 2133 @2133, the blink gets much more frequent. It never happens in BIOS regardless of setting, and I haven't seen it happen running at the RAMs default speed. Yet.

Also AMD Overdrive didn't do a darn thing but cause a BSOD. Otherwise zip. Nada. Zilch.

Could the memery controller be bad? It's too late to return the A10 to the retailer, so what can I do if it is? How do I know it's not the mobo? (RAM tests the same in all slots, BTW.)



My hardware all supports CPU and RAM overclocking:

A10-5800k (supports 1866mhz!?)

ASRock FM2A85X Exreme 6 (supports 2400mhz)

Ballistix 4GB@1866/Ripsaws 8GB@2133

Corsair cx750 watt PS

Corsair h60 cooler.


This is really bugging me.

Thanks in advance.

"Most historical quotes you see online are fake."-- Abraham Lincoln
 01/13/2013 10:33 PM
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Can't offer you much advice as I'm a novice at the DIY PC building thing. 

I assembled my first PC this past October using the AMD A10-5800K chip on an ASUS F2-A85M-Pro motherboard.  I chose Kingston HyperX Red RAM 1600 mhz - 4x8GB.  I put a Cooler Master fan on my chip and found that it was a good thing the Kingston RAM was low profile. 

Kingston HyperX Red RAM

The RAM is running a about 10% over 1600, I set this in the BIOS settings.  The system did not initially set the memory to 1600, rather it thought it was 1333. I had to go into the BIOS settings and manually enter the settings for the memory.  I then used the over clocking option to boost the memory by 10%.  It seems to be running fine so far.  


CPU-Z memmory

I also used AMD's Catalyst Performance enhancements to enable CPU and Graphics Overdrive; 

Graphics Overdrive





CPU Overdrive


I am not really into benchmarking and didn't want to pay for any benchmark software so I've just used some free one's I've found.  The one that seems to run best in Windows 8 is NovaBench, here are some previous results I have for my system using NovaBench: 


12/19/2012 10:24:52 PM
Microsoft Windows 8 Pro
AMD A105800K APU with Radeon HD Graphics @ 4327 MHz
Graphics Card: AMD Radeon HD 6670

32203 MB System RAM (Score: 257)
- RAM Speed: 7887 MB/s

CPU Tests (Score: 434)
- Floating Point Operations/Second: 131578196
- Integer Operations/Second: 314879292
- MD5 Hashes Generated/Second: 948738

Graphics Tests (Score: 115)
- 3D Frames Per Second: 356 


I know that running two HD6670's in crossfire is an odd solution, it was not my original intention.  I had wanted to use the APU's dual graphics capacity and just buy one HD6670.  Unfortunately I also wanted to run three monitors and the HD6670 I bought did not have a displayport which is needed to run three monitors under the Eyefinity system.  SO I had to buy a second HD6670 this one with a displayport.  (My older HD6670 has 2GB of DDR3 memory, the newer HD6670 has 1 GB of DDR5 memory, and that important displayport).  I thought I'd be able to Triple Fire the APU and both HD6670's ~ alas this was not to be allowed.  I do intend to do some tests someday to see if there is any advantage to the two HD6670's over one of them in Dual-Graphic with the APU.  If there is no advantage I might try to sell the older HD6670 (I paid about $75 for it).  It would be good, unless you want three or more monitors.  I just have not taken the time to open the case and do the experiments and tests to see the difference between the APU-HD6670 in Dual-Graphic vs two HD6670's in Crossfire.  Somday I'll do that and post the results. 



Not sure if this helps or not, but thought I'd share my experiences with the A10 & Memory + a little more. 





A10-5800K ~ ASUS F2 A85-M Pro ~ 2x ASUS HD 6670 ~ 32 GB RAM ~ 128 GB SSD ~ Three LG Monitors (20-24-20) ~ Windows 8 Pro



 01/14/2013 01:55 AM
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That is neat. My motherboard is supposed to be pretty good but it mostly gives drop down lists, I cant type values in except for RAM timings. From what I've read that ASUS OC tuner must save a lot of fiddling.

Those 6670 are probably ~25% faster than daul graphics would be, I think.


I guess I never mentioned that I tried selecting the XMP profiles in BIOS. All three pairs of DIMMs POST well enough (at speeds below 2400), they just haven't run well. For all I know the IGP is the unstable bit causing the problem since it uses system memory. (And is why running the fastest RAM matters.)

If I had a discrete GPU to plug in it'd show if that was it. Too bad I don't. 


"Most historical quotes you see online are fake."-- Abraham Lincoln
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