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1600 memory is only recognized as 1333

vollezar

Member
Joined
Dec 26, 2011
Messages
7
I know realize that I bought memory that is not on compatiblity list from Gigabyte (my mobo maker). Just getting that out of the way.
My mobo is Gigabyte GA-990XA-UD3 (ca.gigabyte.com/products/product-page.aspx?pid=3901#ov)

the memory is Patriot G2 AMD black edition (patriotmemory.com/products/detailp.jsp?prodline=5&catid=34&prodgroupid=210&id=1075&type=1)

And my chip is AMD FX-4100

The system works just fine. Except that the memory is recognized as 1333 instead of 1600 in the BIOS. I have tried setting it manually to 1600 in BIOS (that BIOS has an option to Auto adjust to a variety of speeds or to let user set everything manually). I have tried all options, But in every case the BIOS resets at boot. The only thing that remained stable is the change in voltage (1.65v for memory). I have tried contacting Patriot and Gigabyte, but they aren't responding.

Any ideas whether I can and if so how I can get it there, to 1600?
I also tried AMD overdive app, but it won't detect the memory as black edition. I also switched the slots the memory went into.
 

KaptCrunch

Well-known member
Joined
Feb 23, 2008
Messages
4,055
Location
Ontario
<TABLE border=0 cellSpacing=1 cellPadding=3 width="100%"><TBODY><TR><TD class=cal>PC3-12800 (1600MHz) </TD><TD class=cal align=middle>9-9-9-24 </TD><TD class=cal align=middle>1.65~1.7V
</TD></TR></TBODY></TABLE>
200MHz mem 800MHz fsb



Note: before updating any bios check your MB what RevX.XX of MB for manuf may chanaged some chips giving a revision #

i see bios F9 Updates AGESA 1.1.0.0 code 2011/10/13
 

vollezar

Member
Joined
Dec 26, 2011
Messages
7
I have updated the BIOS to F9.
I have tried setting the memory multiplier from 6.6 to 8.0. And the Bios resets back to 6.6 after restart. The timings have been set by BIOS itself to 9-9-9-24. And I have changed the voltage to 1.65, but it still won't accept 1600.
 

vollezar

Member
Joined
Dec 26, 2011
Messages
7
Solved

Finally got it. Thanks KaptCrunch.
I checked the timings again. Didn't see it before, but it changed timings automatically to 10-10-10-25 when I set multiplier to 8. I corrected it to proper setting and it all works now.
 

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