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Old 12-20-2010, 08:17 PM   #1 (permalink)
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Default What kind of RAM do I need? Upgrading from 1GB to 2GB

I would like buy some more ram I was wondering if someone would be willing to help me find what type of memory I need and where I can buy it. I tried looking online, but there is so many different kinds I don't having confidence actually purchasing something I know nothing about. I bought my computer from some random guy on craigslist.

This is what ad said:

Custom Desktop w/Intel Pentium 4 @ 2.4GHz CPU (oc to 2.6)
160Gb Hard Drive WD
1Gb DDR1 Memory Expand TO 2gb
BioStar P4N800CE-8237 Motherboard

CPU Support
Supports Intel Pentium 4/Celeron D processor.Pentium 4 Northwood/Prescott CPU.
Bus Speed: 533MHz/800MHz
Expansion Slots: 3 x PCI, 1 x AGP(8X), 1 x CNR
Max Memory: Maximum 2GB, 2 x 184-pin DDR 400/333
Chipset: VIA P4M800/VT8237
IDE Controller: 2 x IDE Hard Disk Devices (Support Ultra DMA 33/66/100 Bus Master Modes)
2 x Serial ATA Connectors
S3 UniChrome with up to 64MB shared memory
Realtek ALC655 6-Channel AC97 CODEC
VIA VT6103L Integrated 10/100 transceiver

Everest Ultimate Edition gave me these specs:

Module Name Viking Components DDR64X64PC2100-16
Serial Number None
Module Size 512 MB (2 ranks, 4 banks)
Module Type Unbuffered
Memory Type DDR SDRAM
Memory Speed PC2100 (133 MHz)
Module Width 64 bit
Module Voltage SSTL 2.5
Error Detection Method None
Refresh Rate Reduced (7.8 us), Self-Refresh

Memory Timings
@ 133 MHz 2.5-3-3-6 (CL-RCD-RP-RAS) / 9-10-2 (RC-RFC-RRD)
@ 100 MHz 2.0-2-2-5 (CL-RCD-RP-RAS) / 7-8-2 (RC-RFC-RRD)

Memory Module Features
Early RAS# Precharge Not Supported
Auto-Precharge Not Supported
Precharge All Not Supported
Write1/Read Burst Not 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 Supported
Redundant Row Address Not Supported
[/B]


Field Value
North Bridge Properties
North Bridge VIA P4M800 CE
Supported FSB Speeds FSB400, FSB533, FSB800
Supported Memory Types DDR-266 SDRAM, DDR-333 SDRAM, DDR-400 SDRAM, DDR2-400 SDRAM, DDR2-533 SDRAM
Maximum Memory Amount 2 GB
Revision 00
In-Order Queue Depth 8

Memory Controller
Bank Interleave 4-way

Memory Timings
CAS Latency (CL) 2.5T
RAS To CAS Delay (tRCD) 3T
RAS Precharge (tRP) 3T
RAS Active Time (tRAS) 6T
Row Refresh Cycle Time (tRFC) 10T
Command Rate (CR) 2T
RAS To RAS Delay (tRRD) 2T
Write Recovery Time (tWR) 5T
Write To Read Delay (tWTR) 2T
Read To Precharge Delay (tRTP) 3T
Refresh Period (tREF) 1072T

Error Correction
ECC Not Supported
ChipKill ECC Not Supported
RAID Not Supported
ECC Scrubbing Not Supported

Memory Slots
DRAM Slot #1 512 MB (PC2100 DDR SDRAM)
DRAM Slot #2 512 MB (PC2100 DDR SDRAM)

Integrated Graphics Controller
Graphics Controller Type VIA/S3G UniChrome Pro
Graphics Controller Status Disabled

AGP Controller
AGP Version 3.05
AGP Status Enabled
AGP Device nVIDIA GeForce2 MX/MX400
AGP Aperture Size 128 MB
Supported AGP Speeds 1x, 2x, 4x, 8x
Current AGP Speed 4x
Fast-Write Not Supported
Side Band Addressing Supported, Disabled

Chipset Manufacturer
Company Name VIA Technologies, Inc.
Product Information VIA Chipsets - VIA Technologies, Inc.
Driver Download VIA Drivers Download - VIA Technologies, Inc.
BIOS Upgrades http://www.esupport.com/biosagent/in...m?refererid=40
Driver Update DriverAgent - Device Driver Downloads, Updates, and Scans

Problems & Suggestions
Problem Current AGP speed is lower than maximum supported. This may cause performance penalty.


Field Value
Motherboard Properties
Motherboard ID 06/09/2007-P4M800CE-8237-6A7L6B09C-00
Motherboard Name Biostar P4M80-M4

Front Side Bus Properties
Bus Type Intel GTL+
Bus Width 64-bit
Real Clock 133 MHz (QDR)
Effective Clock 533 MHz
Bandwidth 4267 MB/s

Memory Bus Properties
Bus Type DDR SDRAM
Bus Width 64-bit
DRAM:FSB Ratio 1:1
Real Clock 133 MHz (DDR)
Effective Clock 267 MHz
Bandwidth 2133 MB/s

Chipset Bus Properties
Bus Type VIA V-Link
Bus Width 8-bit
Real Clock 67 MHz (ODR)
Effective Clock 533 MHz
Bandwidth 533 MB/s

Motherboard Physical Info
CPU Sockets/Slots 1 Socket 478
Expansion Slots 3 PCI, 1 AGP, 1 CNR
RAM Slots 2 DDR DIMM
Integrated Devices Audio, Video, LAN
Form Factor Micro ATX
Motherboard Size 200 mm x 240 mm
Motherboard Chipset P4M800



Any input or links would be GREATLY appreciated
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Old 12-21-2010, 09:52 AM   #2 (permalink)
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Default Re: What kind of RAM do I need? Upgrading from 1GB to 2GB

What speed ram do you have right now? I'm not reading all that. If you don't know, get CPUID - System & hardware benchmark, monitoring, reporting and run it. Go to the SPD tab, tell us or make a screenshot of what you have.

According to the manual for your board, you need DDR 133, 166, or 200Mhz. Two 1GB sticks are hard to find these days. Think eBay is your only answer.
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Old 12-22-2010, 07:08 PM   #3 (permalink)
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Default Re: What kind of RAM do I need? Upgrading from 1GB to 2GB

well i currently have (2) 512mb sticks right now and i have 2 more slots.


Module Name Viking Components DDR64X64PC2100-16
Serial Number None
Module Size 512 MB (2 ranks, 4 banks)
Module Type Unbuffered
Memory Type DDR SDRAM
Memory Speed PC2100 (133 MHz)
Module Width 64 bit
Module Voltage SSTL 2.5
Error Detection Method None
Refresh Rate Reduced (7.8 us), Self-Refresh

Memory Timings
@ 133 MHz 2.5-3-3-6 (CL-RCD-RP-RAS) / 9-10-2 (RC-RFC-RRD)
@ 100 MHz 2.0-2-2-5 (CL-RCD-RP-RAS) / 7-8-2 (RC-RFC-RRD)
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Old 12-22-2010, 07:21 PM   #4 (permalink)
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Default Re: What kind of RAM do I need? Upgrading from 1GB to 2GB

These should work.

Newegg.com - A-DATA 1GB (2 x 512MB) 184-Pin DDR SDRAM DDR 400 (PC 3200) Desktop Memory Model AD1U400A512M3-DRH
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Old 12-22-2010, 07:40 PM   #5 (permalink)
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Default Re: What kind of RAM do I need? Upgrading from 1GB to 2GB

how sure are you? the only difference i could find was that mine are PC 2100 and the ones on the link are PC 3200. is it okay to have different size bandwidths?
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Old 12-22-2010, 07:56 PM   #6 (permalink)
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Default Re: What kind of RAM do I need? Upgrading from 1GB to 2GB

While they are rated for a faster speed they will default to match the slowest module you have installed.

I'll say I'm 95% sure they'll work. I'd say 100% but you just never know for sure when your dealing with old tech and limited options.
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Old 12-22-2010, 08:34 PM   #7 (permalink)
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Default Re: What kind of RAM do I need? Upgrading from 1GB to 2GB

oh ok. well thanks for your help i appreciate it. im gonna give it shot. ill let you know how it goes.
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