I just installed three 4GB DDR3-1333 (PC3 10600 ) UDIMM 240-pin RAM stix into slots 1,3, & 5 of my Dell Studio XPS 435 System running Windows Vista Home Premium 64-bit OS which had 6 RAM slots with six 1GB RAM stix installed. After installation, I had trouble getting the PC to boot up. Finally, after several tries it did boot. I went to MyComputer and looked at its properties. It showed I had only 10GB RAM and not the 15 GB that I expected (three 4GB stix and three 1GB stix). I then went to the Crucial website (RAM stix seller) and ran its system scanner tool. It showed that one 4GB RAM slot and one 1 GB RAM slot were empty, but not which of the 6 slots/stix were empty/bad.
I called Crucial tech support. They suggested that I pull out all of the RAM stix and just install one stix in RAM slot #1. If the PC would boot, then repeat several times until I isolated which stix might not work in slot #1. If the 6 boots were successful, move to slot #2 and repeat. I said this would be extremely time-consuming in my office setup. I asked if there was any tool which could analyze my PC and they suggested Speccy.
I ran Speccy, and it also shows that I have 6 total memory slots and that only 4 are being used. When I look at the six slots individually, they all look like they have nearly identical information, i.e., they show nothing unusual about any of the slots. Is there any way for Speccy to show which memory slots/stix are not registering/functioning?
I tried to attach a Speccy snapshot, but your forum wouldn't allow it, so here is a copy/paste effort to show the Speccy screen for the RAM:
RAM Memory slots Total memory slots 6 Used memory slots 4 Free memory slots 2 Memory Type DDR3 Size 15360 MBytes Channels # Triple DRAM Frequency 532.0 MHz CAS# Latency (CL) 7 clocks RAS# to CAS# Delay (tRCD) 7 clocks RAS# Precharge (tRP) 7 clocks Cycle Time (tRAS) 20 clocks Command Rate (CR) 2T Physical Memory Memory Usage 24 % Total Physical 9.99 GB Available Physical 7.88 GB Total Virtual 7.99 TB Available Virtual 7.99 TBSPD
Number Of SPD Modules 6Slot #1
Type DDR3
Size 4096 MBytes
Manufacturer Micron Technology
Max Bandwidth PC3-10700 (667 MHz)
Part Number 16JTF51264AZ-1G4D1
Serial Number DF670442
Week/year 34 / 10
SPD Ext. EPP
JEDEC #6
Frequency 761.9 MHz
CAS# Latency 10.0
RAS# To CAS# 10
RAS# Precharge 10
tRAS 28
tRC 38
Voltage 1.500 V
JEDEC #5
Frequency 685.7 MHz
CAS# Latency 9.0
RAS# To CAS# 9
RAS# Precharge 9
tRAS 25
tRC 34
Voltage 1.500 V
JEDEC #4
Frequency 609.5 MHz
CAS# Latency 8.0
RAS# To CAS# 8
RAS# Precharge 8
tRAS 22
tRC 30
Voltage 1.500 V
JEDEC #3
Frequency 533.3 MHz
CAS# Latency 7.0
RAS# To CAS# 7
RAS# Precharge 7
tRAS 20
tRC 27
Voltage 1.500 V
JEDEC #2
Frequency 457.1 MHz
CAS# Latency 6.0
RAS# To CAS# 6
RAS# Precharge 6
tRAS 17
tRC 23
Voltage 1.500 V
JEDEC #1
Frequency 381.0 MHz
CAS# Latency 5.0
RAS# To CAS# 5
RAS# Precharge 5
tRAS 14
tRC 19
Voltage 1.500 VSlot #2
Type DDR3
Size 1024 MBytes
Manufacturer Elpida
Max Bandwidth PC3-8500F (533 MHz)
Part Number EBJ10UE8BAFA-AE-E
Serial Number 2B003E99
Week/year 40 / 08
SPD Ext. EPP
JEDEC #3
Frequency 609.5 MHz
CAS# Latency 8.0
RAS# To CAS# 8
RAS# Precharge 8
tRAS 23
tRC 31
Voltage 1.500 V
JEDEC #2
Frequency 533.3 MHz
CAS# Latency 7.0
RAS# To CAS# 7
RAS# Precharge 7
tRAS 20
tRC 27
Voltage 1.500 V
JEDEC #1
Frequency 457.1 MHz
CAS# Latency 6.0
RAS# To CAS# 6
RAS# Precharge 6
tRAS 18
tRC 24
Voltage 1.500 VSlot #3
Type DDR3
Size 4096 MBytes
Manufacturer Micron Technology
Max Bandwidth PC3-10700 (667 MHz)
Part Number 16JTF51264AZ-1G4D1
Serial Number DF670457
Week/year 34 / 10
SPD Ext. EPP
JEDEC #6
Frequency 761.9 MHz
CAS# Latency 10.0
RAS# To CAS# 10
RAS# Precharge 10
tRAS 28
tRC 38
Voltage 1.500 V
JEDEC #5
Frequency 685.7 MHz
CAS# Latency 9.0
RAS# To CAS# 9
RAS# Precharge 9
tRAS 25
tRC 34
Voltage 1.500 V
JEDEC #4
Frequency 609.5 MHz
CAS# Latency 8.0
RAS# To CAS# 8
RAS# Precharge 8
tRAS 22
tRC 30
Voltage 1.500 V
JEDEC #3
Frequency 533.3 MHz
CAS# Latency 7.0
RAS# To CAS# 7
RAS# Precharge 7
tRAS 20
tRC 27
Voltage 1.500 V
JEDEC #2
Frequency 457.1 MHz
CAS# Latency 6.0
RAS# To CAS# 6
RAS# Precharge 6
tRAS 17
tRC 23
Voltage 1.500 V
JEDEC #1
Frequency 381.0 MHz
CAS# Latency 5.0
RAS# To CAS# 5
RAS# Precharge 5
tRAS 14
tRC 19
Voltage 1.500 VSlot #4
Type DDR3
Size 1024 MBytes
Manufacturer Elpida
Max Bandwidth PC3-8500F (533 MHz)
Part Number EBJ10UE8BAFA-AE-E
Serial Number 2B003E92
Week/year 40 / 08
SPD Ext. EPP
JEDEC #3
Frequency 609.5 MHz
CAS# Latency 8.0
RAS# To CAS# 8
RAS# Precharge 8
tRAS 23
tRC 31
Voltage 1.500 V
JEDEC #2
Frequency 533.3 MHz
CAS# Latency 7.0
RAS# To CAS# 7
RAS# Precharge 7
tRAS 20
tRC 27
Voltage 1.500 V
JEDEC #1
Frequency 457.1 MHz
CAS# Latency 6.0
RAS# To CAS# 6
RAS# Precharge 6
tRAS 18
tRC 24
Voltage 1.500 VSlot #5
Type DDR3
Size 4096 MBytes
Manufacturer Micron Technology
Max Bandwidth PC3-10700 (667 MHz)
Part Number 16JTF51264AZ-1G4D1
Serial Number DF67044E
Week/year 34 / 10
SPD Ext. EPP
JEDEC #6
Frequency 761.9 MHz
CAS# Latency 10.0
RAS# To CAS# 10
RAS# Precharge 10
tRAS 28
tRC 38
Voltage 1.500 V
JEDEC #5
Frequency 685.7 MHz
CAS# Latency 9.0
RAS# To CAS# 9
RAS# Precharge 9
tRAS 25
tRC 34
Voltage 1.500 V
JEDEC #4
Frequency 609.5 MHz
CAS# Latency 8.0
RAS# To CAS# 8
RAS# Precharge 8
tRAS 22
tRC 30
Voltage 1.500 V
JEDEC #3
Frequency 533.3 MHz
CAS# Latency 7.0
RAS# To CAS# 7
RAS# Precharge 7
tRAS 20
tRC 27
Voltage 1.500 V
JEDEC #2
Frequency 457.1 MHz
CAS# Latency 6.0
RAS# To CAS# 6
RAS# Precharge 6
tRAS 17
tRC 23
Voltage 1.500 V
JEDEC #1
Frequency 381.0 MHz
CAS# Latency 5.0
RAS# To CAS# 5
RAS# Precharge 5
tRAS 14
tRC 19
Voltage 1.500 VSlot #6
Type DDR3
Size 1024 MBytes
Manufacturer Elpida
Max Bandwidth PC3-8500F (533 MHz)
Part Number EBJ10UE8BAFA-AE-E
Serial Number 2A00CD9A
Week/year 36 / 08
SPD Ext. EPP
JEDEC #3
Frequency 609.5 MHz
CAS# Latency 8.0
RAS# To CAS# 8
RAS# Precharge 8
tRAS 23
tRC 31
Voltage 1.500 V
JEDEC #2
Frequency 533.3 MHz
CAS# Latency 7.0
RAS# To CAS# 7
RAS# Precharge 7
tRAS 20
tRC 27
Voltage 1.500 V
JEDEC #1
Frequency 457.1 MHz
CAS# Latency 6.0
RAS# To CAS# 6
RAS# Precharge 6
tRAS 18
tRC 24
Voltage 1.500 V