dell optiplex gx620 ram issue.

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vampelle

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Aug 20, 2011
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when i bought this second hand dell pc around 7 years ago it came with 2gb ram 1Gbx2. than within the same year i bought 1Gb ram more 512mbx2. wanted the dual channel. It is Dell optiplex Gx620, 2.8ghz.

when i installed at that time, i did not though about volts, latency (actually i never knew that much about the memory ram).

overtime i always felt my pc was going slow, i always updated refresh 3-4 times windows 7 pro copy. have 2 hdd of 250gb each, 1 dvd-rw, builtin gpu n sound card.
and strangely i never really though having two different brand will make any differences, as in the pc system setup it shown all as 533MHZ ram for each of them. and i am using its default setting too.

i always clean my pc with cloth n blower 2-3 times a year. and cleaning dust from the front side where the processor fan is, almost daily. i do clean the heatsink when i remove it.
i do have glary utilities or sometimes i use cc cleaner, or malware program, but i do install at a time. also used auglosic cleaner. i have avast antivirus free version. i mostly keep my windows updated , but my other programs are update regularly.

now the issue,
this past month my pc was extremely slow, vlc player freezing , browsing extremely slow all of sudden, n so on. couldn't understand what it could be. so today i search for some help online.

I reinstall memtest and did windows memory test too. it did not found any problem in the ram.
i learned online to clean the ram pin with eraser to get those black things of them. which it did worked little bit. while i was cleaning the 512mbx2 ram, i turn my pc on with just 2Gb ram and to my surprise my pc performance got better.
so i decided to install Rammon and cpu-z to check its vlots n others stuff, as i read online to check them.

i reinstall the 512mb x 2 again with the existing 1Gbx2 ram, i did notice that my speed did improve from before cleaning the ram.

ok here is the results from the cpu-z n rammon. is it some comparabitility issue or not? or just that the ram gone bad. plz look at it and guide me.
also, why in the pc setup it is saying 533mhz for each ram, but in cpu-z n Rammon it saying 400mhz n 333 mhz?
say how to attach the txt n html file here?

Memory SPD
-------------------------------------------------------------------------

DIMM # 1
SMBus address 0x50
Memory type DDR2
Module format Regular UDIMM
Manufacturer (ID) Hyundai Electronics (AD000000000000000000)
Size 1024 MBytes
Max bandwidth PC2-6400 (400 MHz)
Part number HYMP112U64CP8-S6
Serial number 578099C2
Manufacturing date Week 22/Year 09
Number of banks 1
Data width 64 bits
Correction None
Nominal Voltage 1.80 Volts
EPP no
XMP no
AMP no
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 4.0-4-4-12-16 @ 266 MHz
JEDEC #2 5.0-5-5-15-20 @ 333 MHz
JEDEC #3 6.0-6-6-18-24 @ 400 MHz

DIMM # 2
SMBus address 0x51
Memory type DDR2
Module format Regular UDIMM
Manufacturer (ID) Samsung (CE000000000000000000)
Size 512 MBytes
Max bandwidth PC2-5300 (333 MHz)
Part number M3 78T6553EZS-CE6
Serial number 750BDAD7
Manufacturing date Week 16/Year 07
Number of banks 1
Data width 64 bits
Correction None
Nominal Voltage 1.80 Volts
EPP no
XMP no
AMP no
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 3.0-3-3-9-12 @ 200 MHz
JEDEC #2 4.0-4-4-12-16 @ 266 MHz
JEDEC #3 5.0-5-5-15-20 @ 333 MHz

DIMM # 3
SMBus address 0x52
Memory type DDR2
Module format Regular UDIMM
Manufacturer (ID) Hyundai Electronics (AD000000000000000000)
Size 1024 MBytes
Max bandwidth PC2-6400 (400 MHz)
Part number HYMP112U64CP8-S6
Serial number 577096ED
Manufacturing date Week 21/Year 09
Number of banks 1
Data width 64 bits
Correction None
Nominal Voltage 1.80 Volts
EPP no
XMP no
AMP no
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 4.0-4-4-12-16 @ 266 MHz
JEDEC #2 5.0-5-5-15-20 @ 333 MHz
JEDEC #3 6.0-6-6-18-24 @ 400 MHz

DIMM # 4
SMBus address 0x53
Memory type DDR2
Module format Regular UDIMM
Manufacturer (ID) STT (7F7F7F7F7F7F34000000)
Size 512 MBytes
Max bandwidth PC2-5300 (333 MHz)
Part number SUPERTALENT01
Serial number FFFFFFFF
Manufacturing date Week 165/Year 165
Number of banks 1
Data width 64 bits
Correction None
Nominal Voltage 1.80 Volts
EPP no
XMP no
AMP no
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 3.0-3-3-9-12 @ 200 MHz
JEDEC #2 4.0-4-4-12-16 @ 266 MHz
JEDEC #3 5.0-5-5-15-20 @ 333 MHz

DIMM # 1
SPD registers
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
00 80 08 08 0E 0A 60 40 00 05 25 40 00 82 08 00 00
10 0C 08 70 01 02 00 07 30 45 3D 50 3C 1E 3C 2D 01
20 17 25 05 12 3C 1E 1E 00 06 3C 7F 80 14 1E 00 00
30 00 00 00 00 00 00 00 00 00 00 00 00 00 00 12 E0
40 AD 00 00 00 00 00 00 00 01 48 59 4D 50 31 31 32
50 55 36 34 43 50 38 2D 53 36 20 20 41 41 09 22 57
60 80 99 C2 00 00 00 00 00 00 00 00 00 00 00 00 57
70 46 39 35 4E 39 30 39 33 32 30 34 00 00 00 00 00
80 49 4E 54 45 4C 00 00 00 00 00 00 00 00 00 00 04
90 44 50 39 36 35 4C 54 00 00 00 00 00 00 00 00 00
A0 01 03 01 03 03 08 00 00 00 00 00 00 00 02 00 00
B0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
C0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
D0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
E0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

DIMM # 2
SPD registers
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
00 80 08 08 0E 0A 60 40 00 05 30 45 00 82 08 00 00
10 0C 04 38 01 02 00 07 3D 50 50 60 3C 1E 3C 2D 80
20 20 27 10 17 3C 1E 1E 00 00 3C 69 80 18 22 00 00
30 00 03 00 00 00 00 00 00 00 00 00 00 00 00 12 78
40 CE 00 00 00 00 00 00 00 01 4D 33 20 37 38 54 36
50 35 35 33 45 5A 53 2D 43 45 36 20 53 45 07 16 75
60 0B DA D7 00 4C 57 44 31 36 30 31 00 00 00 00 00
70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
80 00 61 43 46 07 20 35 55 F8 20 58 36 00 24 17 00
90 00 61 43 46 07 20 35 55 F8 20 58 35 00 17 14 00
A0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
B0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
C0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
D0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
E0 52 2F 4D FF FF FF FF FF FF FF FF FF FF FF FF FF
F0 01 00 00 FF FF FF FF FF FF FF FF FF FF FF FF FF

DIMM # 3
SPD registers
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
00 80 08 08 0E 0A 60 40 00 05 25 40 00 82 08 00 00
10 0C 08 70 01 02 00 07 30 45 3D 50 3C 1E 3C 2D 01
20 17 25 05 12 3C 1E 1E 00 06 3C 7F 80 14 1E 00 00
30 00 00 00 00 00 00 00 00 00 00 00 00 00 00 12 E0
40 AD 00 00 00 00 00 00 00 01 48 59 4D 50 31 31 32
50 55 36 34 43 50 38 2D 53 36 20 20 41 41 09 21 57
60 70 96 ED 00 00 00 00 00 00 00 00 00 00 00 00 57
70 53 39 35 4E 38 39 33 37 32 30 39 00 00 00 00 00
80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03
90 44 50 33 35 44 50 00 00 00 00 00 00 00 00 00 00
A0 01 03 01 03 03 08 00 00 00 00 00 00 00 02 00 00
B0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
C0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
D0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
E0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

DIMM # 4
SPD registers
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
00 80 08 08 0E 0A 60 40 00 05 30 45 00 82 08 00 00
10 0C 04 38 01 02 00 07 3D 50 50 60 3C 1E 3C 2D 80
20 20 27 10 17 3C 1E 1E 00 00 3C 69 80 18 22 00 00
30 00 03 00 00 00 00 00 00 00 00 00 00 00 00 12 78
40 7F 7F 7F 7F 7F 7F 34 00 01 53 55 50 45 52 54 41
50 4C 45 4E 54 30 31 00 00 00 00 00 02 00 FF FF FF
60 FF FF FF 00 00 00 00 00 00 00 00 00 00 00 00 00
70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
80 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
90 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
A0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
B0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
C0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
D0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
E0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
F0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

 
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vampelle

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Item Slot #1 Slot #2 Slot #3 Slot #4
Ram Type DDR2 DDR2 DDR2 DDR2
Maximum Clock Speed (MHz) 400 (JEDEC) 333 (JEDEC) 400 (JEDEC) 333 (JEDEC)
Maximum Transfer Speed (MHz) DDR2-800 DDR2-666 DDR2-800 DDR2-666
Maximum Bandwidth (MB/s) PC2-6400 PC2-5300 PC2-6400 PC2-5300
Memory Capacity (MB) 1024 512 1024 512
Jedec Manufacture Name Hynix Semiconductor (Hyundai Electronics) Samsung Hynix Semiconductor (Hyundai Electronics) Super Talent
Search Amazon.com Search! Search! Search! Search!
SPD Revision 1.2 1.2 1.2 1.2
Registered No No No No
ECC No No No No
DIMM Slot # 1 2 3 4
Manufactured Week 22 of Year 2009 Week 16 of Year 2007 Week 21 of Year 2009 Week 165 of Year 2165
Module Part # HYMP112U64CP8-S6 M3 78T6553EZS-CE6 HYMP112U64CP8-S6 SUPERTALENT01
Module Revision 0x4141 0x5345 0x4141 0x200
Module Serial # 0x578099C2 0x750BDAD7 0x577096ED 0xFFFFFFFF
Module Manufacturing Location 1 1 1 1
# of Row Addressing Bits 14 14 14 14
# of Column Addressing Bits 10 10 10 10
# of Banks 8 4 8 4
# of Ranks 1 1 1 1
Device Width in Bits 8 8 8 8
Bus Width in Bits 64 64 64 64
Module Voltage SSTL 1.8V SSTL 1.8V SSTL 1.8V SSTL 1.8V
CAS Latencies Supported 4 5 6 3 4 5 4 5 6 3 4 5
Timings @ Max Frequency (JEDEC) 6-6-6-18 5-5-5-15 6-6-6-18 5-5-5-15
Maximum frequency (MHz) 400 333 400 333
Maximum Transfer Speed (MHz) DDR2-800 DDR2-666 DDR2-800 DDR2-666
Maximum Bandwidth (MB/s) PC2-6400 PC2-5300 PC2-6400 PC2-5300
Minimum Clock Cycle Time, tCK (ns) 2.500 3.000 2.500 3.000
Minimum CAS Latency Time, tAA (ns) 15.000 15.000 15.000 15.000
Minimum RAS to CAS Delay, tRCD (ns) 15.000 15.000 15.000 15.000
Minimum Row Precharge Time, tRP (ns) 15.000 15.000 15.000 15.000
Minimum Active to Precharge Time, tRAS (ns) 45.000 45.000 45.000 45.000
Minimum Row Active to Row Active Delay, tRRD (ns) 7.500 7.500 7.500 7.500
Minimum Auto-Refresh to Active/Auto-Refresh Time, tRC (ns) 60.000 60.000 60.000 60.000
Minimum Auto-Refresh to Active/Auto-Refresh Command Period, tRFC (ns) 127.500 105.000 127.500 105.000

DDR2 Specific SPD Attributes
Data Access Time from Clock, tAC (ns) 0.400 0.450 0.400 0.450
Clock Cycle Time at Medium CAS Latency (ns) 3.000 3.750 3.000 3.750
Data Access Time at Medium CAS Latency (ns) 0.450 0.500 0.450 0.500
Clock Cycle Time at Short CAS Latency (ns) 3.750 5.000 3.750 5.000
Data Access Time at Short CAS Latency (ns) 0.500 0.600 0.500 0.600
Maximum Clock Cycle Time (ns) 8.000 8.000 8.000 8.000
Write Recover Time, tWR (ns) 15.000 15.000 15.000 15.000
Internal Write to Read Command Delay, tWTR (ns) 7.500 7.500 7.500 7.500
Internal Read to Precharge Command Delay, tRTP (ns) 7.500 7.500 7.500 7.500
Address/Command Setup Time Before Clock, tIS (ns) 0.170 0.200 0.170 0.200
Address/Command Hold Time After Clock, tIH (ns) 0.250 0.270 0.250 0.270
Data Input Setup Time Before Strobe, tDS (ns) 0.050 0.100 0.050 0.100
Data Input Hold Time After Strobe, tDH (ns) 0.120 0.170 0.120 0.170
Maximum Skew Between DQS and DQ Signals (ns) 0.200 0.240 0.200 0.240
Maximum Read Data hold Skew Factor (ns) 0.240 0.220 0.240 0.220
PLL Relock Time (ns) 0.000 0.000 0.000 0.000
DRAM Package Type Planar Planar Planar Planar
Burst Lengths Supported 4 8 4 8 4 8 4 8
Refresh Rate Reduced (7.8us) Reduced (7.8us) Reduced (7.8us) Reduced (7.8us)
# of PLLS on DIMM 0 0 0 0
FET Switch External Enable No No No No
Analysis Probe Installed No No No No
Weak Driver Supported Yes Yes Yes Yes
50 Ohm ODT Supported Yes Yes Yes Yes
Partial Array Self Refresh Supported Yes Yes Yes Yes
Module Type UDIMM UDIMM UDIMM UDIMM
Module Height (mm) 30.0 30.0 30.0 30.0
 
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