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Problems running RAM at 1600Mhz

post #1 of 8
Thread Starter 
I've got an Asrock 880GMH/U3S3 board http://www.asrock.com/mb/AMD/880GMHU3S3/
Athlon II X4 630 and 8GB (2x4GB) Corsair Vengeance Blue 1600MHz CL9 DDR3 http://www.corsair.com/vengeance-8gb-dual-channel-ddr3-memory-kit-cmz8gx3m2a1600c9b.html

By default it's running at 1333Mhz@1.5v, so I increased it to 1600Mhz@1.5v and then I couldn't boot Windows and instead of the usual animated boot screen, I just saw "Windows is loading files" at the bottom before it rebooted.

As you can see, the RAM is specced to run at 1600Mhz@1.5v, so any ideas why it's not working or how I can get it to work?
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post #2 of 8
Have you flashed your bios?
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post #3 of 8
Thread Starter 
Quote:
Originally Posted by Fishinfan View Post

Have you flashed your bios?

Yeah, it's the latest v1.8.

It turns out that my CPU doesn't support anything higher than 1333Mhz though, so I'll just have to content myself with overclocking the CPU and NB wink.gif
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post #4 of 8
I don't buy that for a minute..
bump your cpu/nb voltage 3 notches and your RAM voltage to 1.65
see if that works.
also..set your timings manually.It could be the board is setting trfc too low or something.
edit:NM ..I can't find anything to prove otherwise doh.gif
chips i had apparently did around 1300-ish.
 
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post #5 of 8
Thread Starter 
I think you're right actually. I don't think any AMD CPU's officially support 1600Mhz RAM. Like here http://www.amd.com/uk/products/desktop/processors/phenom-ii/Pages/phenom-ii-key-architectural-features.aspx it says
Quote:
DRAM Controller with AMD Memory Optimizer Technology
◾A high-bandwidth, low-latency integrated memory controller
◾Supports PC2-8500 (DDR2-1066); PC2-6400 (DDR2-800), PC2-5300 (DDR2-667), PC2-4200 (DDR2-533) or PC2-3200 (DDR2-400) SDRAM unbuffered DIMMs – AM2+
◾Support for unregistered DIMMs up to PC2 8500(DDR2-1066MHz) and PC3 10600 (DDR3-1333MHz) – AM3
◾Up to 17.1GB/s memory bandwidth for DDR2 and up to 21GB/s memory bandwidth for DDR3 ◦Benefit: Quick access to system memory for better performance.

but I don't have any problems running my RAM at 1600Mhz with my Phenom II X4 955 (well until I got 16GB, it didn't like that and couldn't see 4GB until I dropped back down to 1333Mhz).

So I'll have a play with the timings. I shouldn't need to bump the voltage to 1.65v though as it's specced to run at 1600Mhz@1.5v
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post #6 of 8
Thread Starter 
So I've set

FSB - 230Mhz
CPU - x14 = 3220Mhz@1.4v
NB - 2300Mhz@1.175v (NB Core - 1.19v)
HT - 1840Mhz (next step is 2070Mhz)
DDR3 - 1532Mhz (next step is 1840Mhz). Bank and Channel Interleave are Enabled, Power Down - Disabled
UCC - Disabled
CPU Active Core Control - Disabled.
Onboard GPU - Default
Spread Spectrum - Disabled

and it's booting OK now. I've selected Profile 1 now for the RAM, which seems to be needed to set the right timings.

I'm not sure what the NB Core is or if I need to increase any of the voltages. I've kept the HT under 2000Mhz as I understand that's necessary.

I've just tested with IntelBurnTest and that returned an error on the second loop, so what do I need to adjust?
Gaming
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Samsung F4 2TB Scythe Kotetsu Windows8.1 x64 Dell U2412M & P2314T 
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post #7 of 8
Thread Starter 
This is weird. As the overclock isn't stable (tried increasing CPU-NB v to 1.25v), I thought I'd try just running the RAM at 1600Mhz but without any overclock, it fails to boot again, even with Profile1 selected, which shows it's set to 9-9-9-24 or setting the timings manually. The only one I can't adjust to that shown under Profile1 is Trfc which shows as 128 but the manual settings only offer 160 (or 110), so I left it on 160.

Why would the RAM only work at 1600Mhz (OK 1532Mhz) when the CPU and NB are overclocked?
Gaming
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CPUMotherboardGraphicsRAM
i5-4670k Asus Z97-A Powercolour HD6950 2GB 16GB Corsair Vengeance DDR3 1600Mhz LP 
Hard DriveCoolingOSMonitor
Samsung F4 2TB Scythe Kotetsu Windows8.1 x64 Dell U2412M & P2314T 
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Onboard Realtek 
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Reply
Gaming
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5-4670k Asus Z97-A Powercolour HD6950 2GB 16GB Corsair Vengeance DDR3 1600Mhz LP 
Hard DriveCoolingOSMonitor
Samsung F4 2TB Scythe Kotetsu Windows8.1 x64 Dell U2412M & P2314T 
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post #8 of 8
Thread Starter 
Oh well. Asrock pointed me to this table which shows that officially Athlon II X4 630 on a 4-slot board with 2-slots populated only officially supports 1066Mhz RAM http://support.amd.com/us/kbarticles/Pa ... guide.aspx

Testing with the RAM speed set to Auto, which sets it to 960Mhz when overclocking or 1333Mhz otherwise, I managed to Post up to FSB 240Mhz reliably, with the CPU, NB and HT all reduced to keep them at or below their default clocks, so it does seem I need to keep the RAM speed below 1066Mhz. At FSB 250Mhz or even 245 it didn't post reliably though.
Gaming
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5-4670k Asus Z97-A Powercolour HD6950 2GB 16GB Corsair Vengeance DDR3 1600Mhz LP 
Hard DriveCoolingOSMonitor
Samsung F4 2TB Scythe Kotetsu Windows8.1 x64 Dell U2412M & P2314T 
KeyboardPowerCaseMouse
MS X4 Sidewinder eVGA SuperNova G2 750W Coolermaster HAF XB A4Tech 
Audio
Onboard Realtek 
  hide details  
Reply
Gaming
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5-4670k Asus Z97-A Powercolour HD6950 2GB 16GB Corsair Vengeance DDR3 1600Mhz LP 
Hard DriveCoolingOSMonitor
Samsung F4 2TB Scythe Kotetsu Windows8.1 x64 Dell U2412M & P2314T 
KeyboardPowerCaseMouse
MS X4 Sidewinder eVGA SuperNova G2 750W Coolermaster HAF XB A4Tech 
Audio
Onboard Realtek 
  hide details  
Reply
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