Ram upgrade

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nobde

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I have a micro-star international motherboard with a sis650 chipset, 2.6 Celeron. It has (2)256 PC2700 now. I want to go with (2) 512's. Can I go PC3200 or PC4000 or do I need to stick with PC2700.
 
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nobde said:
I have a micro-star international motherboard with a sis650 chipset, 2.6 Celeron. It has (2)256 PC2700 now. I want to go with (2) 512's. Can I go PC3200 or PC4000 or do I need to stick with PC2700.
Which MSI motherboard do you have?
 

nobde

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The Motherboard is a MSI brand. MS-6533 model. Arcadion said PC3200. Is that the fastest? Would PC4000 be out of the question? I'm going to order tomorrow. If 4000 will not work, I will order the pc3200.

How do you know which would be the largest you can use. The manual said 2gig max, but did not say what the max ddr I could use.
 
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The thing is, if you get PC3200 and your cpu fsb is 333, then the PC3200 will only run at PC2700. So, going to PC4000 unless you plan to upgrade your system in the future, IMHO, would be a waste of money.
 
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nobde said:
The Motherboard is a MSI brand. MS-6533 model. Arcadion said PC3200. Is that the fastest? Would PC4000 be out of the question? I'm going to order tomorrow. If 4000 will not work, I will order the pc3200.

How do you know which would be the largest you can use. The manual said 2gig max, but did not say what the max ddr I could use.
The specs on your board say that your FSB is 333Mhz so the best bet thing you can do is to get 2x512's pc2700 ;)
 
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The motherboard fsb has not a thing to do with what RAM you buy, it's the processor fsb that determines that. But if his cpu is set up as fsb333, then the PC2700 is what he should buy. I have known tech friends to buy the PC3200 but only because they were going to upgrade their system in the near future.
 
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Most motherboards can run the RAM faster than the processor FSB, e.g. your processor runs at 333 and the RAM at 400. Even if you don't run the RAM faster, RAM that's rated at 400 will be able to run at 333 with lower latency settings than regular 333 RAM.
 
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Some info on Celerons:

Celeron 2.60ghz - 400mhz (PC3200 will work)
Celeron 2.66ghz - 533mhz (PC3200 will work here too)

those are the 2 celerons made for the 2.6ghz range both of which will work with pc3200.

his Celeron's FSB is 400, not 333
 
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Ah!! so that's how it is. When he said he had PC2700 installed at present, I assumed his cpu fsb was 333mhz.

And I do know that DDR400 will run backward at 333 but I was mainly trying to steer member away from the DDR500.

Full time computer tech, eh? Arcadion.........me too. :D
 
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photolady said:
Full time computer tech, eh? Arcadion.........me too. :D
Yeah, I must be a glutton for punishment eh, spending so much time on here as well :rolleyes:
 

nobde

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Thanks everyone for all the info. I know my cpu runs at 400mhz because I ran a program thru that checked the speed and what is running for ram. I had pc2100 in one and 2700 in the other. With all the information I have gotten, I will buy the PC3200. Thanks again you all have been much help.
 
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