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need help with ram


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#1
mrbeast

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I have a Dell 2100 dimension desk top computer. I broke 1 of my ram slots. I had a stick of 256 dell ram in my computer. It has a part number of....48WJWC/256 I don't know the speed of it (my computer only takes 512MB (256+256) max.) . One of the gold teeth burnt off it so I tried to replace it with a stick of 512MB pc133. When I turned on computer it did not recognize the ram. I put a stick of 128MB pc133 in from my wifes computer it worked no problem. I just bought a stick of 256MB pc133 and my computer starts to boot up I get the dell logo screen then it goes to the page that gives me start up options like safe mode, last known good config, start normally, I tried all 3 nothing happens just ended up on the same page. Took that out and put the stick of 128mb pc133 back in and that is what i am using right now. \
Can you help me figure out what is going on?
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#2
Major Payne

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Let this site scan your PC to find out the infor about what memory to use: http://crucial.com/.

This may help you get the right memory sticks. Don't buy from Crucial unless you can't find it cheaper at TigerDirect or some other site.

Ron
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#3
mrbeast

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Thank you, I did as you suggested and it came up with.....Currently installed memory:



128MB EMPTY

Each memory slot can hold SDRAM, PC133 with a maximum of 256MB per slot.*
So why will it not accept the 256MB PC133 I just tried to put in? Like I said in my first post computer starts shows my video card goes to dell logo then I get the black screen asking how I want to start up I.E. safe mode etc.
The empty slot is the broken one.

Edited by mrbeast, 08 February 2008 - 03:25 PM.

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#4
mrbeast

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here is my motherboard specs... Motherboard

--------------------------------------------------------------------------------


Motherboard Properties:
Motherboard ID 51-2300-000000-00101111-030199-$CA810E_
Motherboard Name Intel Cayman CA810

Front Side Bus Properties:
Bus Type Intel GTL+
Bus Width 64-bit
Real Clock 100 MHz
Effective Clock 100 MHz
Bandwidth 800 MB/s

Chipset Bus Properties:
Bus Type Intel Hub Interface
Bus Width 8-bit

Motherboard Physical Info:
CPU Sockets/Slots 1
Expansion Slots 4 PCI
RAM Slots 2 DIMM
Integrated Devices Audio, Video
Form Factor Micro ATX
Motherboard Size 240 mm x 240 mm
Motherboard Chipset i810
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#5
Samm

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Hi

I can't say for certain but this might explain the problem you're having....
According to Crucial, your system supports 2 single banked modules, as opposed to 2 double banked ones. Most (but not all) double banked modules have chips physically located on both sides of the module. Therefore, if the 256MB module that you're having trouble with, has chips on both sides, then this may be why the system doesn't support it.
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#6
mrbeast

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This link takes you to the stick of ram I bought.....http://www.partspc.com/ProductDetails.asp?CatID=67&ProdID=18486. It looks identical to the stick of 256MB dell ram I had in it before.
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#7
Samm

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Ok, I think the problem is the chip density. The module in the link is a high density module. From what I can tell, I doubt very much that your system chipset (Intel 810) supports high density. You probably need a low density module as all chipsets support low density but only some support high density.

The module in the link below should be compatible...

http://www.partspc.c...amp;ProdID=2067

The thing to look for in a 256MB module is a chip configuration of 32x8 (this may also be listed as 32Mx64).
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#8
mrbeast

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:) Thank you 4 your help much appreciated.
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#9
Samm

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You're very welcome. Be aware though that the module I said should be compatible is exactly that - it should be compatible. If you want to certain, then I suggest you ask the reseller first just to make sure!
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#10
mrbeast

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:) thanks again. When I put the stick of 256MB PC133 high density in and started my computer the first time the first thing that came up was my bios screen I saw something that said 32MB memory I didn't really pay attention to it and just exited out of that screen. I am going to try to install it again tomorrow and see if I can figure out what the heading was it was under. I will update tomorrow.
This is all the info I can get on my memory...
Memory

--------------------------------------------------------------------------------


Physical Memory:
Total 126 MB
Used 107 MB
Free 18 MB
Utilization 85 %

Swap Space:
Total 304 MB
Used 239 MB
Free 65 MB
Utilization 78 %

Virtual Memory:
Total 431 MB
Used 347 MB
Free 83 MB
Utilization 81 %

Physical Address Extension (PAE):
Supported by Operating System Yes
Supported by CPU Yes
Active No

Problems & Suggestions:
Suggestion Install more system memory to improve applications performance.


SPD

--------------------------------------------------------------------------------


[ DIMM2: 128 MB PC133 SDRAM ]

Memory Module Properties:
Serial Number None
Module Size 128 MB (1 rank, 4 banks)
Module Type Unbuffered
Memory Type SDRAM
Memory Speed PC133 (133 MHz)
Module Width 64 bit
Module Voltage LVTTL
Error Detection Method None
Refresh Rate Normal (15.625 us), Self-Refresh

Memory Timings:
@ 133 MHz 3.0-3-3-6 (CL-RCD-RP-RAS)
@ 100 MHz 2.0-2-2-5 (CL-RCD-RP-RAS)

Memory Module Features:
Early RAS# Precharge Not Supported
Auto-Precharge Supported
Precharge All Supported
Write1/Read Burst Supported
Buffered Address/Control Inputs Not Supported
Registered Address/Control Inputs Not Supported
On-Card PLL (Clock) Not Supported
Buffered DQMB Inputs Not Supported
Registered DQMB Inputs Not Supported
Differential Clock Input Not Supported
Redundant Row Address Not Supported

Edited by mrbeast, 09 February 2008 - 07:12 PM.

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#11
mrbeast

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Thanks again for your help the place I bought the ram from finally got back to me and it was the density problem. I need low density for Dell not the high density I bought. :)
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#12
mrbeast

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Thank again.

Edited by mrbeast, 11 February 2008 - 06:10 AM.

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#13
Samm

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You're very welcome :)
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