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08-17-2004, 08:58 AM
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#1
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Moderator
Join Date: Jun 2002
Posts: 2,182
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.5X multipliers with AMD64?
Hi guys. I know some people report having bad performance with .5x Multipliers with AMD64, something like the ram ratio dropping. Is it only with certain boards, chipsets or just the AMD64s?
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08-17-2004, 09:11 AM
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#2
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Xtreme Guru
Join Date: Dec 2003
Location: Vancouver, Canada
Posts: 4,057
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LardArse
I think if you bump the multi by 0.5 to say 9.5, the memory will still run at the same speed as @ 9. Other than that - I haven't tested it yet.
__________________
i5 750 4.20 GHz @ NH-D14 | 4GB | P7P55D LE | 8800 Ultra | OCZ Agility | CM750W | HAF922
Past: Q6600 @ 3.60 E6400 @ 3.60 | E6300 @ 3.40 | O165 @ 2.90 | X2 4400+ @ 2.80 | X2 3800+ @ 2.70 | VE 3200+ @ 2.80 | WI 3200+ @ 2.75 | WI 3000+ no IHS @ 2.72 | TBB 1700+ @ 2.60 | XP-M 2500+ @ 2.63 | NC 2800+ @ 2.40 | AB 1.60GHz @ 2.60
Quote:
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Originally Posted by CompGeek
The US is the only country that doesn't use [nuclear weapons] to terrorize other countries. The US is based on Christian values, unlike any other country in the world. Granted we are straying from our Christian heritage, but we still have a freedom aimed diplomatic stance.
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08-17-2004, 09:14 AM
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#3
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Xtreme Addict
Join Date: Jan 2004
Location: Florida
Posts: 1,672
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Actually I think it is rounded up, hmmm:
Like 9.5x200 = 1.9GHz
1900MHz / 10 (9.5 rounded up) = 190MHz RAM
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Last edited by LilGator; 08-17-2004 at 09:17 AM.
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08-17-2004, 09:16 AM
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#4
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Moderator
Join Date: Jun 2002
Posts: 2,182
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What do you mean I dont get?
If I boot up at 9.5X and clockgen it to 266FSB 1:1, will it stay at 266?
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08-17-2004, 09:17 AM
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#5
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Xtreme Addict
Join Date: Jan 2004
Location: Florida
Posts: 1,672
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No, your RAM will be running 253MHz
Your RAM will be CPU/10 with a 9.5x multi.
It will be CPU/11 with a 10.5x multi.
Just round up for your RAM divider.
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08-17-2004, 09:19 AM
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#6
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Moderator
Join Date: Jun 2002
Posts: 2,182
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Crap, that sux 
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08-17-2004, 09:21 AM
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#7
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Xtreme Addict
Join Date: Jan 2004
Location: Florida
Posts: 1,672
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It's just the way the RAM controller is, CPU is divided by an integer Doesn't hurt performance though, not running 1:1, since 1:1 doesn't exist on Athlon64...
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08-17-2004, 09:31 AM
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#8
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Xtreme Guru
Join Date: Dec 2003
Location: Vancouver, Canada
Posts: 4,057
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LilGator
Yeah but you do get lower RAM speed than you would get by bumping the FSB..
__________________
i5 750 4.20 GHz @ NH-D14 | 4GB | P7P55D LE | 8800 Ultra | OCZ Agility | CM750W | HAF922
Past: Q6600 @ 3.60 E6400 @ 3.60 | E6300 @ 3.40 | O165 @ 2.90 | X2 4400+ @ 2.80 | X2 3800+ @ 2.70 | VE 3200+ @ 2.80 | WI 3200+ @ 2.75 | WI 3000+ no IHS @ 2.72 | TBB 1700+ @ 2.60 | XP-M 2500+ @ 2.63 | NC 2800+ @ 2.40 | AB 1.60GHz @ 2.60
Quote:
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Originally Posted by CompGeek
The US is the only country that doesn't use [nuclear weapons] to terrorize other countries. The US is based on Christian values, unlike any other country in the world. Granted we are straying from our Christian heritage, but we still have a freedom aimed diplomatic stance.
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