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Tuesday 26.11.2024 / 19:38
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High Density Ram compatibility
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dubgirl23
Newbie
_ 		19. June 2009 @ 09:18 _ Link to this message    Send private message to this user   
Hi, Im after purchasing high density RAM before i understood that this is only compatible with 10% of machines (gobshite, i know). Before this item is dispatched I'm trying to work out whether it's gonna be compatible with my motherboard or not (long shot i know). Anyway my MB manufacturer is Hewlett Packarad and the model is 085Ch(v). Would anyone be able to tell me if the high density RAM will work in this MB.
Thank You,
Linda
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sammorris
AfterDawn Addict

4 product reviews
_ 		21. June 2009 @ 16:33 _ Link to this message    Send private message to this user   
Well what RAM did you buy?
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Afterdawn Addict // Silent PC enthusiast // PC Build advisor // LANGamer Alias:Ratmanscoop
PC Specs page -- http://my.afterdawn.com/sammorris/blog_entry.cfm/11247
updated 10-Dec-13
djscoop
AfterDawn Addict
_ 		24. June 2009 @ 02:47 _ Link to this message    Send private message to this user   
what the heck is high density ram...never heard of it.
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"I have no particular talent. I am merely inquisitive" - Albert Einstein

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dubgirl23
Newbie
_ 		24. June 2009 @ 06:02 _ Link to this message    Send private message to this user   
Apparently RAM comes in 2 different formats. The more compatible (more expensive) low density RAM or the less compatible (less expensive) high density RAM. As far as i understand its sumtin to do with the chip arrangement on the memory module. If its 64M X 8 then its low density but if its 128M X 4 then its high density (isn't it great what google can tell you). Anyway I didnt wanna take the chance with my motherboard so i cancelled the order (i'd bought DDR PC2700) and will just stick to the safer low density option.
Cheers anyway,
Linda
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sammorris
AfterDawn Addict

4 product reviews
_ 		24. June 2009 @ 13:31 _ Link to this message    Send private message to this user   
I thought high density was only used for 2GB modules, but it is conceivable that high density RAM could be used to make single-sided 1GB modules. I don't think I've ever seen one though, not for DDR1 at least.
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Afterdawn Addict // Silent PC enthusiast // PC Build advisor // LANGamer Alias:Ratmanscoop
PC Specs page -- http://my.afterdawn.com/sammorris/blog_entry.cfm/11247
updated 10-Dec-13
dubgirl23
Newbie
_ 		25. June 2009 @ 05:29 _ Link to this message    Send private message to this user   
"Apparently" the high density 1G module has 8 chips on each side using this 128M X 4 configuration
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sammorris
AfterDawn Addict

4 product reviews
_ 		25. June 2009 @ 05:50 _ Link to this message    Send private message to this user   
Then it only has four chips on each side surely...
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Afterdawn Addict // Silent PC enthusiast // PC Build advisor // LANGamer Alias:Ratmanscoop
PC Specs page -- http://my.afterdawn.com/sammorris/blog_entry.cfm/11247
updated 10-Dec-13
dubgirl23
Newbie
_ 		25. June 2009 @ 06:05 _ Link to this message    Send private message to this user   
OK im no wer near 100% sure about this but from reading around a bit this is how I've come to understand it:
Low Density 1G module has 16 512Mb chips (8 on each side). The individual chips are organised with 64M bits and a data width of 8 bits (i.e; 64M X 8)
High Density 1G module again has 16 521Mb chips (8 on each side). But this time the individual chips are organised with 128M bit and a data width of 4 bit (i.e; 128M X 4).
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gera229
Member
_ 		26. June 2009 @ 01:07 _ Link to this message    Send private message to this user   
Isn't low density ram used nowdays because it was an improvement and is faster than high density ram.
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This message has been edited since posting. Last time this message was edited on 26. June 2009 @ 01:07
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