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Old 03-24-2005, 06:27 PM   #1 (permalink)
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Question RAM question

Here is my situation: right now I have 512MB of PC3200 RAM and my FSB runs smoothly at 200 MHz. I have a 256MB stick of PC2100 RAM sitting around at home. Would it be beneficial to put that in and have 768MB of RAM, but a FSB speed of only 133MHz?
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Old 03-24-2005, 06:29 PM   #2 (permalink)
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no.....
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Old 03-24-2005, 06:30 PM   #3 (permalink)
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why not?
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Old 03-24-2005, 06:33 PM   #4 (permalink)
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You'll have to underclock the other RAM as you say. It'll slow it down in different terms, even if you have more. 512MB is fine.
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Old 03-24-2005, 06:36 PM   #5 (permalink)
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i know that, but do you think having more ram will outweigh the loss of lowering the FSB to 133 MHz, even if I am underclocking the 512MB stick
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Old 03-24-2005, 06:38 PM   #6 (permalink)
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Quote:
Originally posted by Sport1031
i know that, but do you think having more ram will outweigh the loss of lowering the FSB to 133 MHz, even if I am underclocking the 512MB stick

Not in my opinion, but why dont u give it a try and run some bechmarks and see if they score higher!
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Old 03-24-2005, 06:38 PM   #7 (permalink)
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Quote:
i know that, but do you think having more ram will outweigh the loss of lowering the FSB to 133 MHz, even if I am underclocking the 512MB stick
No not even close dude. That's a huge bandwidth decrease for a minimal amount of RAM increase. It's like shooting yourself in the foot and saying "well I have less body mass so I can run faster right?"

Especially with a 64bit system you want nothing less than pc3200 in there
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Old 03-24-2005, 06:44 PM   #8 (permalink)
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OK thanks for the advice. I', gonna run some benchmarks though and I'll post them here so future readres dont make that misteak.
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Old 03-24-2005, 07:05 PM   #9 (permalink)
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Aquamark 3 (default settings)
Without 256MB PC2100 stick - 57,986
With 2 5 6 M B PC2100 stick - 53,123

Conclusion - Don't add in the 256MB PC2100 stick. There is about a 8.4% performance loss by adding the stick in.
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Old 03-24-2005, 07:06 PM   #10 (permalink)
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I coulda told ya that from the beginning...oh wait I did

3.2gb/sec vs 2.1gb/sec.......simple math tells you the PC2100 would slow the hell out of the computer
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