If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
PING: paul
Paul, I need your input. Before reading your post(s) 128m4, 1gig
ram modules, I bought off Ebay what was advertised as a Micron, 1gb, module--unbuffered, Non-ecc, 400 mhz, 2.5 volt, dimm high-density, non-parity. It got here Sat. Has chips marked with Micron logo, 46v128m4 with a 2-2 above this number on the chip. Also has a -6T below the longer #. It also has a generic white label saying "1 gb, pc 3200, 400 mhz, ddr, dimm, warranty void if removed". Nowhere on the module does it have a Micron label or Micron name EXCEPT on the chips themselves. What do you think I have? I'm afraid to install it in my Asus, A7N8X DeLuxe! Thx in advance, sam |
#2
|
|||
|
|||
PING: paul
sdlomi2 wrote:
Paul, I need your input. Before reading your post(s) 128m4, 1gig ram modules, I bought off Ebay what was advertised as a Micron, 1gb, module--unbuffered, Non-ecc, 400 mhz, 2.5 volt, dimm high-density, non-parity. It got here Sat. Has chips marked with Micron logo, 46v128m4 with a 2-2 above this number on the chip. Also has a -6T below the longer #. It also has a generic white label saying "1 gb, pc 3200, 400 mhz, ddr, dimm, warranty void if removed". Nowhere on the module does it have a Micron label or Micron name EXCEPT on the chips themselves. What do you think I have? I'm afraid to install it in my Asus, A7N8X DeLuxe! Thx in advance, sam Just because it has Micron chips on it, doesn't make it a Micron module. A Crucial module, has two labels on it. A Crucial label and a Micron label. Micron is the parent company of Crucial. A Micron module should have a Micron sticky label and a Micron module part number on that label. Micron has pretty extensive documentation for both modules and individual chips on their web site. The "6T" is some kind of clock speed rating. On some families of chips, you had to look this up (the scheme was a lookup table). In other cases the translation is more direct. I would interpret this as "6 nanoseconds" - take the inverse and multiply by two to get DDR333. 7.5 = DDR266 6 = DDR333 5 = DDR400 Maybe the geniuses who made the DIMM, tested it at room temperature and found it passed at DDR400 speeds. But the chip itself is certified at DDR333, unless I've made some mistake. (Note that Mushkin did this a while back, with some Winbond chips. Back when the good BH-6 chips were gone, and there were some DDR333 chips they had available to them. But your module may not have been tested as carefully as an enthusiast stick of RAM.) There is a chip datasheet here. Interesting how they handle the 2.5V versus 2.6V thing. Their DDR333 or slower RAM is rated 2.5V+/-0.2V and their DDR400 is 2.6V+/-0.1V. http://download.micron.com/pdf/datas...DDRx4x8x16.pdf The chips are 128Mx4, which means the module is an "Ebay configuration". On an A7N8X, this should cause a density issue. AFAIK, the full 1GB capacity can only be recognized on Nforce2, if you use 64Mx8 chips. This is not based on data from Nvidia, but on what someone posted as happened to them. I don't know if there is any guidance in print about it or not. You can install it. I'd try it all by itself. If you suspected the construction quality was poor (i.e. sloppy job) or that the module was never tested, it could always short something. If might register as 512MB or maybe some smaller number. Not really sure on what you'd expect it to register as. Hmmm. I'm seeing a business opportunity here. I buy "Ebay configuration" modules from people, at a fraction of what they paid. I unsolder the chips, and sell them to companies that make registered DIMMs for server memory, which is where the damn 128Mx4 chips should have gone in the first place. Think I'd make any money ? Paul |
#3
|
|||
|
|||
PING: paul
"Paul" wrote in message ... sdlomi2 wrote: Paul, I need your input. Before reading your post(s) 128m4, 1gig ram modules, I bought off Ebay what was advertised as a Micron, 1gb, module--unbuffered, Non-ecc, 400 mhz, 2.5 volt, dimm high-density, non-parity. It got here Sat. Has chips marked with Micron logo, 46v128m4 with a 2-2 above this number on the chip. Also has a -6T below the longer #. It also has a generic white label saying "1 gb, pc 3200, 400 mhz, ddr, dimm, warranty void if removed". Nowhere on the module does it have a Micron label or Micron name EXCEPT on the chips themselves. What do you think I have? I'm afraid to install it in my Asus, A7N8X DeLuxe! Thx in advance, sam Just because it has Micron chips on it, doesn't make it a Micron module. A Crucial module, has two labels on it. A Crucial label and a Micron label. Micron is the parent company of Crucial. A Micron module should have a Micron sticky label and a Micron module part number on that label. Micron has pretty extensive documentation for both modules and individual chips on their web site. The "6T" is some kind of clock speed rating. On some families of chips, you had to look this up (the scheme was a lookup table). In other cases the translation is more direct. I would interpret this as "6 nanoseconds" - take the inverse and multiply by two to get DDR333. 7.5 = DDR266 6 = DDR333 5 = DDR400 Maybe the geniuses who made the DIMM, tested it at room temperature and found it passed at DDR400 speeds. But the chip itself is certified at DDR333, unless I've made some mistake. (Note that Mushkin did this a while back, with some Winbond chips. Back when the good BH-6 chips were gone, and there were some DDR333 chips they had available to them. But your module may not have been tested as carefully as an enthusiast stick of RAM.) There is a chip datasheet here. Interesting how they handle the 2.5V versus 2.6V thing. Their DDR333 or slower RAM is rated 2.5V+/-0.2V and their DDR400 is 2.6V+/-0.1V. http://download.micron.com/pdf/datas...DDRx4x8x16.pdf The chips are 128Mx4, which means the module is an "Ebay configuration". On an A7N8X, this should cause a density issue. AFAIK, the full 1GB capacity can only be recognized on Nforce2, if you use 64Mx8 chips. This is not based on data from Nvidia, but on what someone posted as happened to them. I don't know if there is any guidance in print about it or not. You can install it. I'd try it all by itself. If you suspected the construction quality was poor (i.e. sloppy job) or that the module was never tested, it could always short something. If might register as 512MB or maybe some smaller number. Not really sure on what you'd expect it to register as. Hmmm. I'm seeing a business opportunity here. I buy "Ebay configuration" modules from people, at a fraction of what they paid. I unsolder the chips, and sell them to companies that make registered DIMMs for server memory, which is where the damn 128Mx4 chips should have gone in the first place. Think I'd make any money ? Paul Thx, Paul for the informative response. I highly suspect 1 of 2 things: either this is a 3rd party board with micron chips (as some PNY I've bought in the past from BestBuy) or else it's actually all made by Micron and their sticky white label was removed-and-replaced as Micron's revealed the true "original intention" for the module. If the 1st, fraud; if 2nd, just shady. As for the $-making business opportunity, I know where you could find a start on the cheap supply. As for a start on the pricey demand side, well can't do much for you there. Thx again for your help to me and to others on this forum. sam |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Ping Paul | reqluq | Asus Motherboards | 2 | October 8th 05 06:23 AM |
PING: Paul | Paul | Asus Motherboards | 0 | October 13th 04 11:51 PM |
PING: Paul...Thanks | Paul | Asus Motherboards | 0 | September 3rd 04 09:52 PM |
Attn: Paul,... | Moods | Asus Motherboards | 1 | January 24th 04 06:51 PM |
PAUL BREWER | dave F | UK Computer Vendors | 0 | September 30th 03 08:27 PM |