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  #1  
Old Sep 22, 2002, 09:23 AM
CB1 CB1 is offline
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Question DDR question?

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Right then my m8 is after upgrading his ram.
At the mo he has 1x 256mb ddr. he tells me it is 184 pin.
and all it says on one of the little black rectangle things is:

"HYNIX 137A
HY5DU28822AT-H
KOREA"

After reading some posts people have said you have to put the same ram in, does this mean the same make(which I believe is HYNIX, in this case) or just maek sure it is DDR?

Also he has noticed there are loads of different type of DDR like 2100, PC133, etc. he and myself have no idea what all this means

so when he is buying does he look for HYNIX 256mb 184 pin ddr? or just any DDR type? does it have to be 184 pin/does 184 pin even exist???

Lastly he is looking to upgrade by a further 256-512 depending on price so any recommendations on buying would be appreciated as well.

any help much appreciated and as you can tell when he asks me questions it's like the blind leading the blind!

Last edited by CB1; Sep 22, 2002 at 09:25 AM.
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  #2  
Old Sep 22, 2002, 09:41 AM
Starfox Starfox is offline
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can you tell us the rest of his specs?

here is what the speeds mean

DDR memory (Double Data Rate) offers greater bandwidth over traditional SDRAM and does not cost a great deal more. The rating method of DDR features below and works on possible bandwidth

PC1600 = (100 MHz Operating Speed) x (2x Rising & Falling) x (64-bit Bus) / (8 bits per byte) = 1600 MB/s available bandwidth.

PC2100 = (133 MHz Operating Speed) x (2x Rising & Falling) x (64-bit Bus) / (8 bits per byte) = 2128 MB/s available bandwidth.

PC2400 = (150 MHz Operating Speed) x (2x Rising & Falling) x (64-bit Bus) / (8 bits per byte) = 2400 MB/s available bandwidth.

PC2700 = (166 MHz Operating Speed) x (2x Rising & Falling) x (64-bit Bus) / (8 bits per byte) = 2656 MB/s available bandwidth.

PC3000 = (183 MHz Operating Speed) x (2x Rising & Falling) x (64-bit Bus) / (8 bits per byte) = 2928 MB/s available bandwidth.

PC3200 = (200 MHz Operating Speed) x (2x Rising & Falling) x (64-bit Bus) / (8 bits per byte) = 3200 MB/s available bandwidth.


tell us what kind of ram he has. this will help identify it.
***********.simmtester.com/page/news/showpubnews.asp?num=58

always check www.pricewatch.com for the best prices. when you find someone you want to buy from, go to www.resellerratings.com and check
how honorable the company is.

www.newegg.com has pretty much the best prices, and THE BEST customer service and reliability on the net.

good luck!
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  #3  
Old Sep 22, 2002, 09:44 AM
ps2wiz ps2wiz is offline
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PC133 is not DDR ram, its SDRAM. 2100 and so on is DDR ram. 2100 and so on is the operating speed the highest it goes up to is 3500. DDR RAM is backward compatable, like if your motherboard only takes DDR ram up to 2100 and if you put 3500 in there it will still work but it will operate at the 2100 speed. DDR ram is only 184 pin.

Usaully it is recomended that if you upgrade your ram to stick to the same brand and speed. But I haven't done so and I haven't experienced any problems, it matters what kind of mobo your using usually.

To find some good deals on RAM, go to www.pricewatch.com

Last edited by ps2wiz; Sep 22, 2002 at 09:50 AM.
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  #4  
Old Sep 22, 2002, 06:16 PM
GodfatherUK GodfatherUK is offline
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u can goto hynix website and check it there
***********.hynix.com/eng/index.html
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  #5  
Old Sep 23, 2002, 06:58 AM
CB1 CB1 is offline
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cheers guys
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