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#1
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256meg Memory : 8 chips or 16 chips ????
Just purchased 2 256meg sticks of memory on eBay and only 1 of them works in
my PC. Once piece has 16 chips (8 on each side), the other has only 8 chips (8 on 1 side only). The one with 16 chips works on my PC. Does this make sense or could the other piece be bad? How does this relate to memory being 32x64, which is what my PC should support. How do you get 32x64 when there are 16 or 8 chips ??? Confused!! |
#2
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Al Franz wrote:
Just purchased 2 256meg sticks of memory on eBay and only 1 of them works in my PC. Once piece has 16 chips (8 on each side), the other has only 8 chips (8 on 1 side only). The one with 16 chips works on my PC. Does this make sense or could the other piece be bad? How does this relate to memory being 32x64, which is what my PC should support. How do you get 32x64 when there are 16 or 8 chips ??? Confused!! .. 32Mx64 indicates a 256MB, non-ECC module--32M x 64 bits is 2048Mbits(256MBytes). It's 32Mx64 regardless of the type of chips used on it. Which PC do you have? Your system probably only supports chip densities up to 128Mbit. The 256MB module that works, was built with sixteen 128Mbit chips--probably sixteen 16Mx8 chips. The module that doesn't work, was built with eight 32Mx8(256Mbit) chips. |
#3
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steven67@ wrote:
Al Franz wrote: Just purchased 2 256meg sticks of memory on eBay and only 1 of them works in my PC. Once piece has 16 chips (8 on each side), the other has only 8 chips (8 on 1 side only). The one with 16 chips works on my PC. Does this make sense or could the other piece be bad? How does this relate to memory being 32x64, which is what my PC should support. How do you get 32x64 when there are 16 or 8 chips ??? Confused!! . 32Mx64 indicates a 256MB, non-ECC module--32M x 64 bits is 2048Mbits(256MBytes). It's 32Mx64 regardless of the type of chips used on it. Which PC do you have? Your system probably only supports chip densities up to 128Mbit. The 256MB module that works, was built with sixteen 128Mbit chips--probably sixteen 16Mx8 chips. The module that doesn't work, was built with eight 32Mx8(256Mbit) chips. this is some interesting information, do you happen to have any web references handy for this stuff that I could bookmark for future reference? -- Are you registered as a bone marrow donor? You regenerate what you donate. You are offered the chance to donate only if you match a person on the recipient list. Visit www.marrow.org or call your local Red Cross and ask about registering to be a bone marrow donor. spam trap: replace shyah_right! with hotmail when replying |
#4
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"Al Franz" wrote in message news:YA%hb.96054$%h1.93847@sccrnsc02...
Just purchased 2 256meg sticks of memory on eBay and only 1 of them works in my PC. Once piece has 16 chips (8 on each side), the other has only 8 chips (8 on 1 side only). The one with 16 chips works on my PC. Does this make sense or could the other piece be bad? The 8-chip 256MB sticks use 32M x 8 chips, which have too many address lines for some chipsets to handle, so only half their capacity is recognized. 16-chip 256MB sticks are usually fine because they use 16M x 8 chips, but I once got one with 32M x 4 chips that gave the same problem with all my older stuff, except with my Intel i810 mobo, which also had problems with 8-chip sticks. What kind of price did you get on eBay? 256MB PC133 is really cheap, and I didn't pay anything for the last 4-5 because of rebates. |
#5
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larrymoencurly wrote:
What kind of price did you get on eBay? 256MB PC133 is really cheap, and I didn't pay anything for the last 4-5 because of rebates. Where f.e.? All rebate sales I saw recently, either didn't tell/show the Ras refresh count at all, only were 8k types or the guys selling it, didn't have any kind of clue, what they are actually selling (this unfortunately was the vast majority). They all only have thoss stupid ideas about it being some "low" or "high density" marketing bull****, but of course they can't explain, to which manufacturer specs this should match. Ignorant Morons. Wolfi |
#6
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Wolfi wrote in message ...
256MB PC133 is really cheap, and I didn't pay anything for the last 4-5 because of rebates. Where f.e.? All rebate sales I saw recently, either didn't tell/show the Ras refresh count at all, only were 8k types or the guys selling it, didn't have any kind of clue, what they are actually selling (this unfortunately was the vast majority). www.salescircular.com lists local specials (but they forget Fry's a lot), but I don't see anything special this week. My guess is that the next big sales will be during the weekend before Veteran's Day and Black Friday, the day after Thanksgiving. The "Hot Deals" forums at www.fatwallet.com and www.anandtech.com are good for finding out about sales (often a week ahead of time -- they link to OfficeMax's November rebate deals), coupons, and specials. They all only have thoss stupid ideas about it being some "low" or "high density" marketing bull****, but of course they can't explain, to which manufacturer specs this should match. Ignorant Morons. Even if they understood the information, they probably still couldn't provide any specifics because most companies don't supply them. For example, I wanted to know the differences in Kingston 256MB PC2100 CAS 2.5 modules, some labelled "Assembled in USA," which worked fine, and others from China, which always failed MemTest86. They had nothing but basic information at their website, and their "second level" tech support couldn't tell me the differences. |
#7
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larrymoencurly wrote:
Wolfi wrote in message ... www.salescircular.com lists local specials (but they forget Fry's a lot), but I don't see anything special this week. My guess is that the next big sales will be during the weekend before Veteran's Day and Black Friday, the day after Thanksgiving. The "Hot Deals" forums at www.fatwallet.com and www.anandtech.com are good for finding out about sales (often a week ahead of time -- they link to OfficeMax's November rebate deals), coupons, and specials. Thanks for those links ;-) I'll have to monitor them closely for the next time, not only for finding RAM, but also for good deals for a WD HDD and Lite-On CD-RW/DVD drive. They all only have thoss stupid ideas about it being some "low" or "high density" marketing bull****, but of course they can't explain, to which manufacturer specs this should match. Ignorant Morons. Even if they understood the information, they probably still couldn't provide any specifics because most companies don't supply them. For example, I wanted to know the differences in Kingston 256MB PC2100 CAS 2.5 modules, some labelled "Assembled in USA," which worked fine, and others from China, which always failed MemTest86. They had nothing but basic information at their website, and their "second level" tech support couldn't tell me the differences. Even Crucial, being a Micron subsidiary, doesn't even mention the used row number of their memory cell arrays. But of course they have to boast about the not really relevant CL figures. Wolfi |
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