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 Post subject: Nforce2 FSB disconnect compatible mobos
PostPosted: Sat Jul 05, 2003 3:56 am 
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Joined: Sat Dec 14, 2002 7:00 am
Posts: 806
Location: Germany
Does anybody of you have a nforce2 motherboard which offers the disconnect option in the BIOS? Does it work well? Or are there sound problems. If so, which PSU does you have?
Disconnect is needed in order to save energy during idle time.
According to http://www.xbitlabs.com/articles/cpu/di ... -3000.html
ASUS A7V8X v1.04, EPoX EP-8K9A2, Gigabyte GA-7VAXP v1.0, Gigabyte GA-7VAX v1.1 and Gigabyte GA-7VA v1.0 should have implented this.
The Abit NF7-S v1.4 also should be able to.


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 Post subject:
PostPosted: Sun Jul 06, 2003 3:23 am 
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Location: Germany
Oh sorry I forgot about that. The Gigabyte ones also. But luckily it doesn't change the question.


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 Post subject:
PostPosted: Sun Jul 06, 2003 6:45 am 
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Joined: Thu Jan 09, 2003 11:18 am
Posts: 43
Location: Denmark
Abit NF7-S v2.0 is also capable of this.

I updated my BIOS a few weeks ago and afterwards the CPU ran 10c cooler.
And I haven't seen any problems due to it , so I would say that it works well.

I'm also running Vcool 2.0 Alpha 6 and it makes the CPU run about 3 - 4 c cooler in addition to the 10c i got from the new BIOS.


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 Post subject: Re: Nforce2 FSB disconnect compatible mobos
PostPosted: Sun Jul 06, 2003 11:43 am 
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Joined: Wed Jun 18, 2003 7:31 pm
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Location: Mississauga, ON
jojo4u wrote:
Disconnect is needed in order to save energy during idle time.


Idle time? What's that? Is that the few seconds that my computer has when it's just finished folding one WU and is downloading the next? :wink:

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 Post subject:
PostPosted: Sun Jul 06, 2003 5:37 pm 
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Joined: Fri Jul 04, 2003 9:45 pm
Posts: 137
Location: NJ, USA
Wow just posted in another thread on this. ACPI c2 mode sends the stop-grant (STPGNT) signal which basically disconnects the fsb from the processor. The newest bartons support this by default when matched up to the right mobo but c2 mode can be enabled in all K7 processors through software. This will provide for cooling cpu idle temps and lower power consumption. Just make sure ACPI is enabled in bios.

CpuCool
CpuIdle

hahaha just posting these links again b/c i love these programs.


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 Post subject:
PostPosted: Sun Jul 06, 2003 8:46 pm 
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Joined: Thu Mar 27, 2003 4:00 pm
Posts: 918
Location: Madison, WI, USA
Idle is evil! you should always be folding, 24/7!

but this is nice info for those of you who are evil.


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 Post subject:
PostPosted: Wed Jul 16, 2003 9:47 am 
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Joined: Thu Mar 06, 2003 2:56 pm
Posts: 40
Location: Spain - Madrid
jojo4u, all the boards you have listed are KT400/A, except for the Abit NF7-S.
I have tested an Abit KD7-S (VIA KT400), that also have that option with the latest BIOS.

With VIA chipsets higher than KT266, you should have no problems activating that feature with the proper software, but if you have VT8233 or VT8233A you are likely to suffer from reduced PCI performance and/or sound distortion.

Personally I prefer Vcool to CPUCool.

Keel: Not all K7 work with that feature. All Thunderbirds with a not integer multiplier don't work (they hang). You can read it in AMD datasheets and in the home page of Vcool.

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