Hi Everyone,
Here are my Specs:
AMD FX-6100 (stock clock)
ASRock 990FX Extreme 3 Motherboard http://www.newegg.com/Product/Product.aspx?Item=N82E16813157281
Corsair Vengeance 8GB (2x 4GB) CMZ8GX3M2A1600C9B http://www.newegg.com/Product/Product.aspx?Item=N82E16820145345
2x hitachi 7200rpm 320GB HDDs in RAID 0
XFX Radeon 6870 GPU
750w PSU
Win7 Pro x64
All settings are BIOS default, except RAM clock is set at 1600 (keeps wanting to clock at 800 on auto)
I just upgraded the CPU, MB, and RAM on my Phenom I system to Bulldozer. I was able to POST, set up my RAID, install an OS, basically everything looked fine....until I checked my memory bandwidth.
Only 9GB/s, so clearly it's running in single-channel mode, even though I have the modules set up in dual mode (A1, B1 or A2, B2). Then I check Windows System Information, which lists 8GB installed, 4GB usable. Memtest 86 also only reads 4GB.
Then I performed these steps:
1) Update BIOS
2) Clear CMOS
3) Reseat CPU and RAM, clear CMOS again for good measure
Same deal. So then I remove one DIMM and test individual RAM slots. I get no POST with either DIMM in either of the Channel B slots. And no POST with both DIMMs in the Channel B slots. But Everything works fine with a DIMM in either of the Channel A slots.
Windows also reads 8GB installed and usable in Memtest and Win with both DIMMs in Channel A, although obviously it is running in Single-Channel mode. My bandwidth also went up to 10.9 GB/s after putting both DIMMs in Channel A.
The Corsair RAM is not on ASRock's list of supported memory for this board, but hell, The board supports RAM up to 2100(oc), the CPU 1866, and the memory is only 1600, 1.5v.
Here are my Specs:
AMD FX-6100 (stock clock)
ASRock 990FX Extreme 3 Motherboard http://www.newegg.com/Product/Product.aspx?Item=N82E16813157281
Corsair Vengeance 8GB (2x 4GB) CMZ8GX3M2A1600C9B http://www.newegg.com/Product/Product.aspx?Item=N82E16820145345
2x hitachi 7200rpm 320GB HDDs in RAID 0
XFX Radeon 6870 GPU
750w PSU
Win7 Pro x64
All settings are BIOS default, except RAM clock is set at 1600 (keeps wanting to clock at 800 on auto)
I just upgraded the CPU, MB, and RAM on my Phenom I system to Bulldozer. I was able to POST, set up my RAID, install an OS, basically everything looked fine....until I checked my memory bandwidth.
Only 9GB/s, so clearly it's running in single-channel mode, even though I have the modules set up in dual mode (A1, B1 or A2, B2). Then I check Windows System Information, which lists 8GB installed, 4GB usable. Memtest 86 also only reads 4GB.
Then I performed these steps:
1) Update BIOS
2) Clear CMOS
3) Reseat CPU and RAM, clear CMOS again for good measure
Same deal. So then I remove one DIMM and test individual RAM slots. I get no POST with either DIMM in either of the Channel B slots. And no POST with both DIMMs in the Channel B slots. But Everything works fine with a DIMM in either of the Channel A slots.
Windows also reads 8GB installed and usable in Memtest and Win with both DIMMs in Channel A, although obviously it is running in Single-Channel mode. My bandwidth also went up to 10.9 GB/s after putting both DIMMs in Channel A.
The Corsair RAM is not on ASRock's list of supported memory for this board, but hell, The board supports RAM up to 2100(oc), the CPU 1866, and the memory is only 1600, 1.5v.
Facebook
Twitter
Instagram