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Innoventions Ramcheck Advanced Memory Tester

Innoventions Ramcheck Advanced Memory Tester - PCSTATS
Abstract: Designed and built with the reseller, memory manufacturer and computer service center in mind, this is the Ramcheck memory tester.
 89% Rating:   
Filed under: Memory Published:  Author: 
External Mfg. Website: Innoventions Jul 22 2001   Max Page  
Home > Reviews > Memory > Innoventions Ramcheck

14 DRAM Test Results

We rummaged around the test lab and found 14 sticks of SDRAM memory to test out on the Ramcheck. Some of the memory was only able to match its listed specs while other modules were able to run at 140MHz with absolutely no data-bit errors. The results of each particular test are shown, along with the memory module and individual chip so you can see how the information the Ramcheck reported back to us correlates.

Please note, the last four columns (136, 140, 150, 166) represent the highest speed in MHz that we were able to run the module in. If the module was able to begin the test at say 140MHz but failed it is marked with an "n" for no. If the module passed the test successfully the result is marked with a "y" for yes. Note that several of the modules were able to run error-free at 150MHz.

(*) Tac=ACCESS TIME FROM CLK

Module: Chip Markings: Voltage TEST AT SIZE: CHIP SIZE: SPEED: BANKS: -S: DQMB: SPD SPD TYPE: ECC CLOCKS PAGE BURST Tac (CL= 3):  Tac (CL= 2):  Tac RANGE: CL2@ 100MHz SPEED TEST RESULT FINAL SPEED: 136 140 150 166
 
001 Texas Instruments TMS8664814DGE-8A 3.3V 16Mx64=128M 4x2Mx8 100MHz 2 0+1+2+3 0+1+2+3+4+5+6+7 INTEL PC-100 NO 100MHz @ CL2 SDRAM 168P DIMM UNBUFFERED N 4
136MHz 4.5nS 4.5nS PC-100 N TEST=PC-100
100MHz
y n - -
 
002 Micron 48LC16M8A2-75B 3.3V 16Mx64=128M 4x4Mx8 100MHz 1 0+2 0+1+2+3+4+5+6+7 JEDEC PC133 100MHz at CL2 SDRAM 168P DIMM UNBUFFERED N 2 CK0+1 140MHz 4.0nS 4.5nS PC133 N TEST= PC133 RANGE 133MHz y y y n
 
003 Mitsubishi M2V64S20DTP-6 3.3V 16Mx64=128M 4x4Mx4 100MHz 1 0+2 0+1+2+3+4+5+6+7 JEDEC PC133 100MHz at CL2 SDRAM 168P DIMM UNBUFFERED N 4 133MHz 4.5nS 4.5nS PC133 N PC133 RANGE 133MHz n - - -
 
004 LD C128V9912808-7 3.3V 16Mx64=128M 4x4Mx4 100MHz 1 0+2 0+1+2+3+4+5+6+7 INTEL PC-100 NO 100MHz @ CL2 SDRAM 168P DIMM UNBUFFERED N 4 133MHz 4.5nS 4.5nS PC-100 N TEST=PC-100 100MHz n - - -
 
005 Hyundai HY57V651620B-75 3.3V 8Mx64=64M 4x1Mx16 100MHz 2 0+1+2+3 0+1+2+3+4+5+6+7 JEDEC PC133 100MHz at CL2 SDRAM 168P DIMM UNBUFFERED N 4 136MHz 4.0nS 4.0nS PC133 N PC133 RANGE 133MHz y y y n
 
006 LGS GM72V66841CT7J-7 3.3V 8Mx64=64M 4x2Mx8 100MHz 1 0+2 0+1+2+3+4+5+6+7 INTEL PC-100 100MHz at CL2 SDRAM 168P DIMM UNBUFFERED N 2 CK0+1 112MHz 4.5nS 4.5nS PC-100 Y PC-100 100MHz n - - -
 
007 Semicon SDS82V6684157-6K 3.3V 16Mx64=128M 4x2Mx8 100MHz 2 0+1+2+3 0+1+2+3+4+5+6+7 JEDEC PC133 NO 100MHz @ CL2 SDRAM 168P DIMM UNBUFFERED N 4 140MHz 4.0nS 4.0nS PC133 N PC133 RANGE 133MHz n - - -
 
008 Ramtek RM725264805L-7 3.3V 16Mx64=128M 4x2Mx8 100MHz 2 0+1+2+3 0+1+2+3+4+5+6+7 JEDEC PC133 NO 100MHz @ CL2 SDRAM 168P DIMM UNBUFFERED N 4 130MHz 4.0nS 4.5nS PC133 N PC133 RANGE 133MHz n - - -
 
009 Hyundai HY57V658020B-10S 3.3V 8Mx64=64M 4x2Mx8 100MHz 1 0+2 0+1+2+3+4+5+6+7 INTEL PC-100 NO 100MHz @ CL2 SDRAM 168P DIMM UNBUFFERED N 2 CK0+2 136MHz 4.0nS 4.0nS PC-100 N PC-100 100MHz n - - -
 
0010 Semicon

SDS82V1684157-6

3.3V 16Mx64=128M 4x4Mx8 100MHz 1 0+2 0+1+2+3+4+5+6+7 JEDEC PC133 NO 100MHz @ CL2 SDRAM 168P DIMM UNBUFFERED N 2 CK0+2 140MHz 3.5nS 3.5nS PC133 N PC133 RANGE 133MHz y y y n
 
0011 Apacer AM2V168A1T8 3.3V 4Mx64=32M 2x1Mx8 100MHz 2 0+1+2+3 0+1+2+3+4+5+6+7 INTEL PC-100 100MHz at CL2 SDRAM 168P DIMM UNBUFFERED N 4 NO FULL-PAGE BURST 4.5nS 4.5nS PC-100 N PC-100 100MHz y y y n
 
0012 Tonicom TM31S128084B-6F 3.3V 32Mx64=256M 4x4Mx8 100MHz 2 0+1+2+3 0+1+2+3+4+5+6+7 JEDEC PC133 100MHz at CL2 SDRAM 168P DIMM UNBUFFERED N 4 140MHz 3.5nS 3.5nS PC133 N PC133 RANGE 133MHz y y n -
 
0013 Texas Instruments TMS626812ADGE-10 3.3V 4Mx64=32M 2x1Mx8 100MHz 2 0+1+2+3 0+1+2+3+4+5+6+7 INTEL PC-66 NO 100MHz @ CL2 SDRAM 168P DIMM UNBUFFERED N 4 124MHz 5.0nS 6.0nS PC-100 Y PC-100 RANGE 100MHz n - - -

 

0014 Hyundai HY57V64162GHG 3.3V 8Mx64=64M 4x1Mx16 100MHz 2 -S:0+1 0+1+2+3+4+5+6+7 INTEL PC-100 NO 100MHz @ CL2
144P DIMM
UNBUFFERED
N 2 CK0+1 124MHz
5.0nS 5.0nS PC-100 N PC-100 100MHz
n - - -

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Contents of Article: Innoventions Ramcheck
 Pg 1.  Innoventions Ramcheck Advanced Memory Tester
 Pg 2.  Quirks of memory testing - PCB quality is important
 Pg 3.  Back to testing DRAM - What's done
 Pg 4.  The Ramcheck Unit
 Pg 5.  Software Testing Options
 Pg 6.  — 14 DRAM Test Results
 Pg 7.  Final impressions

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