tomski Posted March 26, 2011 Share Posted March 26, 2011 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 TB SPD Number Of SPD Modules 6 Slot #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 V Slot #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 V Slot #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 V Slot #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 V Slot #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 V Slot #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 Link to comment Share on other sites More sharing options...
Moderators Nergal Posted March 26, 2011 Moderators Share Posted March 26, 2011 I added code tags for easier reading. But with speccy you can upload itand link it, or save it as a text file and attach it as an attachment here. ADVICE FOR USING CCleaner'S REGISTRY INTEGRITY SECTION DON'T JUST CLEAN EVERYTHING THAT'S CHECKED OFF. Do your Registry Cleaning in small bits (at the very least Check-mark by Check-mark) ALWAYS BACKUP THE ENTRY, YOU NEVER KNOW WHAT YOU'LL BREAK IF YOU DON'T. Support at https://support.ccleaner.com/s/?language=en_US Pro users file a PRIORITY SUPPORT via email support@ccleaner.com Link to comment Share on other sites More sharing options...
Mr Ziggy Posted April 1, 2011 Share Posted April 1, 2011 I encountered a very similar situation with a new Win 7 64-bit system just this week. One of the pair of 4 gig RAM cards went bad. Windows identified the problem in Control Panel >> System by reporting only 4 gigs of RAM SIW identified the problem in "System Summary" by reporting only 4030 megs of physical memory Speccy continued to report 8060 megs of RAM available. Speccy has been removed from my system. Link to comment Share on other sites More sharing options...
redhawk Posted April 2, 2011 Share Posted April 2, 2011 Trial and error - just remove the sticks until you find the bad one in your system. Richard S. Link to comment Share on other sites More sharing options...
tomski Posted April 4, 2011 Author Share Posted April 4, 2011 Interestingly, I did install the stix one at a time, and they all worked when only one was installed. However, when I installed all three of the new stix, the PC would not boot. After reading about this same problem in a Dell Studio XPS 435MT owner's forum, I realized the Crucial RAM stix will not work "as a team" in my PC; others reported the same problem. So I sent the items back to Crucial and bought the PC "owners" recommendations from Kingston. I actually bought six 4GB RAM stix, installed them all, and they all work fine. The only reason I posted my original post was to alert Speccy programmers that even when Speccy shows that not all of the installed RAM is summed to the correct total becaise of faulty RAM stix/slots, the Speccy data on the individual stix does not point out which stix/slots are bad. It seems like that might be a nice addition to an already good product. Trial and error - just remove the sticks until you find the bad one in your system. Richard S. Link to comment Share on other sites More sharing options...
GoneToPlaid Posted May 3, 2011 Share Posted May 3, 2011 Group the three 4 GB sticks together into slots 1, 2 and 3. Then test that setup. If there are no issues, install three of the 1 GB sticks into slots 4, 5 and 6. Then test this setup with the total of 15 GB of memory. If you now run into issues with the 1 GB sticks installed, remove all sticks, put the 1 GB sticks into slots 1 through 3 and the 4GB sticks into slots 4 through 6. If this configuration still causes problems then there is a compatibility issue between the new 4 GB sticks and the older 1 GB sticks, then your only option is to install the 4 GB sticks back into slots 1 through 3 and not use any of the 1 GB sticks in the computer. Link to comment Share on other sites More sharing options...
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