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#1
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inspiron 7500 and upgrading memory
I bought 2 sticks of 256mb of pc100 to replace the 2 sticks of 128mb
of pc100 that are currently in the laptop. I cannot get the computer to recognize the new memory. The computer trys to turn on and then turns of and keeps up this cycle until I unplug and take out the battery. I have upgraded the BIOS and still nothing. I take the old memory and put it back in and it works just fine... Any help out there for me??? |
#2
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inspiron 7500 and upgrading memory
it is oblivious,it is the wrong memory
"Mjonesmb1" wrote in message ... I bought 2 sticks of 256mb of pc100 to replace the 2 sticks of 128mb of pc100 that are currently in the laptop. I cannot get the computer to recognize the new memory. The computer trys to turn on and then turns of and keeps up this cycle until I unplug and take out the battery. I have upgraded the BIOS and still nothing. I take the old memory and put it back in and it works just fine... Any help out there for me??? |
#3
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inspiron 7500 and upgrading memory
Older notebooks, just like older desktops, are somewhat sensitive to the exact
specs of the memory installed. For example, if the Inspiron 7500 does not support SODIMMs with high-density memory chips, this could explain the symptoms you are seeing. According to the Inspiron 7500 specs on the Dell web site: Memory Architecture SDRAM Memory module capacities 32-, 64-, 128-, 192-, and 256 MB SODIMM Maximum RAM 512 MB Memory access time/clock frequency 66 MHz or 100 MHz The Inspiron 7500 chipset is an Intel 440BX, noted for being picky about memory. If your system has a Celeron processor, it can run with either 66MHz or 100Mhz memory. If it has either a Pentium II or Pentium 3, memory MUST be PC100... Ben Myers On Tue, 28 Nov 2006 13:43:32 -0000, lid (Mjonesmb1) wrote: I bought 2 sticks of 256mb of pc100 to replace the 2 sticks of 128mb of pc100 that are currently in the laptop. I cannot get the computer to recognize the new memory. The computer trys to turn on and then turns of and keeps up this cycle until I unplug and take out the battery. I have upgraded the BIOS and still nothing. I take the old memory and put it back in and it works just fine... Any help out there for me??? |
#4
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inspiron 7500 and upgrading memory
try each separate. could be faulty ram from ebay. i've had that before.
Mjonesmb1 wrote: I bought 2 sticks of 256mb of pc100 to replace the 2 sticks of 128mb of pc100 that are currently in the laptop. I cannot get the computer to recognize the new memory. The computer trys to turn on and then turns of and keeps up this cycle until I unplug and take out the battery. I have upgraded the BIOS and still nothing. I take the old memory and put it back in and it works just fine... Any help out there for me??? |
#5
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inspiron 7500 and upgrading memory
"Ben Myers" wrote in message ... Older notebooks, just like older desktops, are somewhat sensitive to the exact specs of the memory installed. For example, if the Inspiron 7500 does not support SODIMMs with high-density memory chips, this could explain the symptoms you are seeing. According to the Inspiron 7500 specs on the Dell web site: Memory Architecture SDRAM Memory module capacities 32-, 64-, 128-, 192-, and 256 MB SODIMM Maximum RAM 512 MB Memory access time/clock frequency 66 MHz or 100 MHz The Inspiron 7500 chipset is an Intel 440BX, noted for being picky about memory. If your system has a Celeron processor, it can run with either 66MHz or 100Mhz memory. If it has either a Pentium II or Pentium 3, memory MUST be PC100... Ben Myers Isn't there also the high density versus low density issue as well? |
#6
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inspiron 7500 and upgrading memory
Yes. So I said: "For example, if the Inspiron 7500 does not support SODIMMs
with high-density memory chips, this could explain the symptoms you are seeing." And, with the 440BX chipset, the Inspiron 7500 almost certainly does not work with high-density chips on SODIMMs... Ben On Tue, 28 Nov 2006 11:53:50 -0600, "S.Lewis" wrote: "Ben Myers" wrote in message .. . Older notebooks, just like older desktops, are somewhat sensitive to the exact specs of the memory installed. For example, if the Inspiron 7500 does not support SODIMMs with high-density memory chips, this could explain the symptoms you are seeing. According to the Inspiron 7500 specs on the Dell web site: Memory Architecture SDRAM Memory module capacities 32-, 64-, 128-, 192-, and 256 MB SODIMM Maximum RAM 512 MB Memory access time/clock frequency 66 MHz or 100 MHz The Inspiron 7500 chipset is an Intel 440BX, noted for being picky about memory. If your system has a Celeron processor, it can run with either 66MHz or 100Mhz memory. If it has either a Pentium II or Pentium 3, memory MUST be PC100... Ben Myers Isn't there also the high density versus low density issue as well? |
#7
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inspiron 7500 and upgrading memory
"Ben Myers" wrote in message ... Yes. So I said: "For example, if the Inspiron 7500 does not support SODIMMs with high-density memory chips, this could explain the symptoms you are seeing." And, with the 440BX chipset, the Inspiron 7500 almost certainly does not work with high-density chips on SODIMMs... Ben Woops. Mea culpa. Coffee. Need. Lots. Stew |
#8
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inspiron 7500 and upgrading memory
There certainly are issues with the BX based chipset and higher density
parts, but on desktops at least, the most common symptom was that you would install a 256MB memory module and the system would only recognize half of it, it would be seen as a 128MB module. We learned that if we wanted to use 256MB modules with a BX chipset (in a desktop), we had to look for double-sided low density modules with 16 chips (8 on each side), rather than the modules with only 8 chips on one side only. He bought these modules on E-Bay. I think that there are two likely situations here, either the modules are incompatible, or perhaps they are just plain defective. Ben Myers wrote: Yes. So I said: "For example, if the Inspiron 7500 does not support SODIMMs with high-density memory chips, this could explain the symptoms you are seeing." And, with the 440BX chipset, the Inspiron 7500 almost certainly does not work with high-density chips on SODIMMs... Ben |
#9
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inspiron 7500 and upgrading memory
In case the thread is still alive...
Memory for my 7500 came from crucial.com four years ago and it has never caused a problem. I have repaired the 7500's hinges a couple of times, though. --David Mjonesmb1 wrote: I bought 2 sticks of 256mb of pc100 to replace the 2 sticks of 128mb of pc100 that are currently in the laptop. I cannot get the computer to recognize the new memory. The computer trys to turn on and then turns of and keeps up this cycle until I unplug and take out the battery. I have upgraded the BIOS and still nothing. I take the old memory and put it back in and it works just fine... Any help out there for me??? |
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