Athlon II x4 630 NB speed of 1600?

VirtualLarry

No Lifer
Aug 25, 2001
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Is that correct? Athlon II X4 northbridge speed is only 1600, and not 2000 like on a Phenom II?

That's the speed that is auto-detected on my Biostar A760G M2+ mobo, that I bought at MC in a combo with the CPU (mobo was free). I didn't adjust any of the CPU frequency settings, they are all on auto.

RAM is DDR2-800, running at 800.

Could it be the mobo auto-adjusted NB speed to twice RAM speed automatically? Do I need DDR2-1000 to take advantage of a 2000 NB clock?
 

Vesku

Diamond Member
Aug 25, 2005
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Sounds like the motherboard BIOS just picked that speed. My Athlon X3 defaulted to 2000, it's running at 2100ish atm from OCing.
 

Eddie313

Senior member
Oct 15, 2006
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It might be your motherboard settings or bios update, I have a Amd x4 620 and it defaults to 2000mhz
 

formulav8

Diamond Member
Sep 18, 2000
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You need to see about a bios update. I had the same problem with a Biostar 790gx XE mobo with a Athlon II x3 440. It would default to 1600 mhz. (Although I could set it to 2000mhz manually.)

Once I updated to the latest bios it then defaults to 2000mhz. I simply turned the computer completely off then turned back on after the bios update.

Link: Here is a link to the bios page. I would think there is a newer bios than that. But if your boards bios is older then try with the one on Biostars site.


Jason
 

LoneNinja

Senior member
Jan 5, 2009
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Should be at 2.0Ghz, it's the specs on the processor and what my 630 defaulted at. My problem is the gigabyte 780g board I use defaults voltage to 1.4V, but in windows it reads 1.475V. If i set voltage manually to 1.375, or 1.425 for example, than I get that voltage in windows. I've also got a Biostar board that defaults my Phenom II northbridge at 1.6, it's got an updated Bios and it's annoying because I loose cool n quiet when I manually set northbridge speed. At least I preferred using K10stat over cool n quiet any ways.
 

VirtualLarry

No Lifer
Aug 25, 2001
56,587
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You need to see about a bios update. I had the same problem with a Biostar 790gx XE mobo with a Athlon II x3 440. It would default to 1600 mhz. (Although I could set it to 2000mhz manually.)

Once I updated to the latest bios it then defaults to 2000mhz. I simply turned the computer completely off then turned back on after the bios update.

You would tend to think that, wouldn't you. But I flashed the newest BIOS, from 9/09. That's the newest that they have listed for the Biostar A760G M2+ board.
http://www.biostar.com.tw/app/en/mb/bios.php?S_ID=394

Edit: Maybe it does it to save power? Since this is a 95W TDP CPU mobo.
 
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Vesku

Diamond Member
Aug 25, 2005
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Biostar and Asus don't really support their low budget 760g motherboards. I have an ASUS m3a76-cm which is listed as supporting 125W cpus but they have yet to add any Phenom II x6 support. Also, they don't enable ACC on it even though it has a 710 SB. Very frustrating, I feel it's worth the extra 20 bucks to get a 785g board with much better support and updates.
 

LoneNinja

Senior member
Jan 5, 2009
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Biostar and Asus don't really support their low budget 760g motherboards. I have an ASUS m3a76-cm which is listed as supporting 125W cpus but they have yet to add any Phenom II x6 support. Also, they don't enable ACC on it even though it has a 710 SB. Very frustrating, I feel it's worth the extra 20 bucks to get a 785g board with much better support and updates.

I've got 2 of the early 790GX AM2+ boards from Biostar, both produced back in 08, neither feature a bios update beyond Athlon II X4 support last fall. Oddly they list Athlon II, and even Phenom II 945 along with all other 125W parts on AM2+, but never listed support for the 955/965 and now they don't for Thuban either.