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Dubbah
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24 GB Memory working in Studio XPS 435MT for $270

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After trying 4 GiB DDR3 memory from G.Skill, Crucial and 2 sets of Black Diamond - and getting the dreaded "beep-beep" memory POST failure whenever I put more than 1 DIMM in a channel - I found memory that is recognized by the BIOS at the full 24 GiB.

I've been running with it for two weeks without a problem.  I've run memtest, and even have pushed it into heavy paging running some database tests in virtual machines.  (I have a fast OCZ Vertex 2 for pagefile.sys, so it can hard fault at an astonishing rate.)

Although this screen says 1333MHz, the OS and other tools say 1066MHz.

The DIMMs are Kingston KHX1600C9D3X2K2/8GX

Normally $120 per pair at http://www.frys.com/product/6516823?site=srSmiley FrustratedEARCH:MAIN_RSLT_PG, but on sale in the Fry's stores for $89.99 per pair.  (Note that the page says that they are 1.65v, but that's for 1600 MHz.  The default is 1.5v at 1333MHz - look at the CPU-Z info below.)

CPU-Z info:

CPU-Z version   1.56

Chipset
-------------------------------------------------------------------------

Northbridge   Intel X58 rev. 12
Southbridge   Intel 82801JR (ICH10R) rev. 00
Graphic Interface  PCI-Express
PCI-E Link Width  x16
PCI-E Max Link Width  x16
Memory Type   DDR3
Memory Size   24576 MBytes
Channels   Triple
Memory Frequency  532.0 MHz (2:8)
CAS# latency (CL)  7.0
RAS# to CAS# delay (tRCD) 7
RAS# Precharge (tRP)  7
Cycle Time (tRAS)  19
Row Refresh Cycle Time (tRFC) 86
Command Rate (CR)  2T
Uncore Frequency  2127.9 MHz

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

DIMM #    1
 SMBus address  0x50
 Memory type  DDR3
 Module format  UDIMM
 Manufacturer (ID) Kingston (7F98000000000000)
 Size   4096 MBytes
 Max bandwidth  PC3-10700 (667 MHz)
 Part number  9905403-199.A00LF
 Serial number  6613A845
 Manufacturing date Week 06/Year 11
 Number of banks  8
 Nominal Voltage  1.50 Volts
 EPP   no
 XMP   yes
 XMP revision  1.2
JEDEC timings table  CL-tRCD-tRP-tRAS-tRC @ frequency
 JEDEC #1  6.0-6-6-17-23 @ 457 MHz
 JEDEC #2  7.0-7-7-20-27 @ 533 MHz
 JEDEC #3  8.0-8-8-22-30 @ 609 MHz
 JEDEC #4  9.0-9-9-25-34 @ 685 MHz
XMP profile   XMP-1600
 Specification  PC3-12800
 Voltage level  1.650 Volts
 Min Cycle time  1.250 ns (800 MHz)
 Min tRP   11.25 ns
 Min tRCD  11.25 ns
 Min tWR   15.00 ns
 Min tRAS  33.75 ns
 Min tRC   45.00 ns
 Min tRFC  160.00 ns
 Min tRTP  7.50 ns
 Min tRRD  6.00 ns
XMP timings table  CL-tRCD-tRP-tRAS-tRC-CR @ frequency (voltage)
 XMP #1   6.0-6-6-18-24-0T @ 533 MHz (1.650 Volts)
 XMP #2   7.0-7-7-21-28-0T @ 622 MHz (1.650 Volts)
 XMP #3   8.0-8-8-24-32-0T @ 711 MHz (1.650 Volts)
 XMP #4   9.0-9-9-27-36-0T @ 800 MHz (1.650 Volts)

DIMM #    2-6 same as 1

DIMM #    1
SPD registers 
  00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
 00 92 10 0B 02 03 19 00 09 03 52 01 08 0C 00 3C 00
 10 69 78 69 30 69 11 20 89 00 05 3C 3C 00 F0 83 05
 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 30 00 00 00 00 00 00 00 00 00 00 00 00 0F 11 01 01
 40 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 50 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 60 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 70 00 00 00 00 00 01 98 04 11 06 66 13 A8 45 2A F0
 80 39 39 30 35 34 30 33 2D 31 39 39 2E 41 30 30 4C
 90 46 20 00 00 80 AD 00 00 00 00 00 00 00 00 00 00
 A0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 B0 0C 4A 01 12 01 08 00 00 00 2D 0A 5A 3C 00 50 5A
 C0 5A 78 11 0E 68 3F 00 00 05 3C 30 00 F0 3C 00 00
 D0 00 00 24 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 5A

DIMM #    2-6 same as 1

DMI
-------------------------------------------------------------------------

DMI BIOS  
 vendor   Dell Inc.
 version   1.1.4
 date   12/21/2009

DMI System Information  
 manufacturer  Dell Inc.
 product   Studio XPS 435MT
 version   unknown

DMI Baseboard  
 vendor   Dell Inc.
 model   0R849J
 revision  A01

DMI System Enclosure  
 manufacturer  Dell Inc.
 chassis type  Desktop

DMI Processor  
 manufacturer  Intel
 model   Intel(R) Core(TM) i7 CPU         940  @ 2.93GHz
 clock speed  2933.0 MHz
 FSB speed  133.0 MHz
 multiplier  22.0x

DMI Memory Controller  
 correction  64-bit ECC
 Max module size  2048 MBytes

DMI Memory Module  
 designation  DIMM1

DMI Memory Module  
 designation  DIMM2

DMI Memory Module  
 designation  DIMM3

DMI Memory Module  
 designation  DIMM4

DMI Memory Module  
 designation  DIMM5

DMI Memory Module  
 designation  DIMM6

DMI Physical Memory Array  
 location  Motherboard
 usage   System Memory
 correction  None
 max capacity  12288 MBytes
 max# of devices  6

DMI Memory Device  
 designation  DIMM1
 format   DIMM
 type   unknown
 total width  64 bits
 data width  64 bits
 size   4096 MBytes

DMI Memory Device  
 designation  DIMM2
 format   DIMM
 type   unknown
 total width  64 bits
 data width  64 bits
 size   4096 MBytes

DMI Memory Device  
 designation  DIMM3
 format   DIMM
 type   unknown
 total width  64 bits
 data width  64 bits
 size   4096 MBytes

DMI Memory Device  
 designation  DIMM4
 format   DIMM
 type   unknown
 total width  64 bits
 data width  64 bits
 size   4096 MBytes

DMI Memory Device  
 designation  DIMM5
 format   DIMM
 type   unknown
 total width  64 bits
 data width  64 bits
 size   4096 MBytes

DMI Memory Device  
 designation  DIMM6
 format   DIMM
 type   unknown
 total width  64 bits
 data width  64 bits
 size   4096 MBytes

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120 Replies
_Leo
1 Nickel

Re: 24 GB Memory working in Studio XPS 435MT for $270

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Hi,


Thank you so much for the detailed post! I received an update from a previous post inwhich i posted on that I was following that you replied too. Im actually also running kingston hyperx but I decided to go with 12gigs and it is running at 1333. But I did not purchase the 1600. So far so good knock on wood!lol Ive been running it close to a month now and no issues at all. system only uses 14% of my ram, I bet yours only uses 2! I also just put in a ATI 5670 with the original psu and am happy to say no power problems what so ever. Thank you again for testing all the different brands of ram and letting us know about it. I know now which one im sticking with!

Take care!

Leo

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Dubbah
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Re: 24 GB Memory working in Studio XPS 435MT for $270

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Actually, at the moment I have about 4 GiB of the 24 GiB free.

Are you sure that it's running at 1333 MHz - the BIOS report lies.

Note that the screenshot from Memtest shows 532/1064 MHz, and CPU-Z also shows 532/1064.

You can get CPU-Z at http://www.cpuid.com/ - it shows a wealth of information about your system.

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bttb
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Re: 24 GB Memory working in Studio XPS 435MT for $270

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Dubbah

 

Thanks for the update - Its been driving me crazy - very frustrating - But you seem to have nailed it

 

Can you just re-confirm that you have actually installed 24Gb into a Dell XPS 435 MT  and NOT a full size XPS 435 - as don't want to through the pain again with that Beep-Beep

 

Thanks

BTTB

 

 

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_Leo
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Re: 24 GB Memory working in Studio XPS 435MT for $270

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Northbridge   Intel X58 rev. 12
Southbridge   Intel 82801JR (ICH10R) rev. 00
Graphic Interface  PCI-Express
PCI-E Link Width  x16
PCI-E Max Link Width  x16
Memory Type   DDR3
Memory Size   12288 MBytes
Channels   Triple
Memory Frequency  532.0 MHz (2:8)
CAS# latency (CL)  7.0
RAS# to CAS# delay (tRCD) 7
RAS# Precharge (tRP)  7
Cycle Time (tRAS)  19
Row Refresh Cycle Time (tRFC) 59
Command Rate (CR)  2T
Uncore Frequency  2128.0 MHz

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

DIMM #    1
 SMBus address  0x50
 Memory type  DDR3
 Module format  UDIMM
 Manufacturer (ID) Kingston (7F98000000000000)
 Size   2048 MBytes
 Max bandwidth  PC3-10700 (667 MHz)
 Part number  9905403-169.A00LF
 Serial number  6E0E5CD4
 Manufacturing date Week 49/Year 10
 Number of banks  8
 Nominal Voltage  1.50 Volts
 EPP   no
 XMP   no
JEDEC timings table  CL-tRCD-tRP-tRAS-tRC @ frequency
 JEDEC #1  6.0-6-6-17-23 @ 457 MHz
 JEDEC #2  7.0-7-7-20-27 @ 533 MHz
 JEDEC #3  8.0-8-8-22-30 @ 609 MHz
 JEDEC #4  9.0-9-9-25-34 @ 685 MHz

DIMM #    2
 SMBus address  0x51
 Memory type  DDR3
 Module format  UDIMM
 Manufacturer (ID) Kingston (7F98000000000000)
 Size   2048 MBytes
 Max bandwidth  PC3-10700 (667 MHz)
 Part number  9905403-169.A00LF 
 Manufacturing date Week 49/Year 10
 Number of banks  8
 Nominal Voltage  1.50 Volts
 EPP   no
 XMP   no
JEDEC timings table  CL-tRCD-tRP-tRAS-tRC @ frequency
 JEDEC #1  6.0-6-6-17-23 @ 457 MHz
 JEDEC #2  7.0-7-7-20-27 @ 533 MHz
 JEDEC #3  8.0-8-8-22-30 @ 609 MHz
 JEDEC #4  9.0-9-9-25-34 @ 685 MHz

DIMM #    3
 SMBus address  0x52
 Memory type  DDR3
 Module format  UDIMM
 Manufacturer (ID) Kingston (7F98000000000000)
 Size   2048 MBytes
 Max bandwidth  PC3-10700 (667 MHz)
 Part number  9905403-169.A00LF 
 Manufacturing date Week 49/Year 10
 Number of banks  8
 Nominal Voltage  1.50 Volts
 EPP   no
 XMP   no
JEDEC timings table  CL-tRCD-tRP-tRAS-tRC @ frequency
 JEDEC #1  6.0-6-6-17-23 @ 457 MHz
 JEDEC #2  7.0-7-7-20-27 @ 533 MHz
 JEDEC #3  8.0-8-8-22-30 @ 609 MHz
 JEDEC #4  9.0-9-9-25-34 @ 685 MHz

DIMM #    4
 SMBus address  0x53
 Memory type  DDR3
 Module format  UDIMM
 Manufacturer (ID) Kingston (7F98000000000000)
 Size   2048 MBytes
 Max bandwidth  PC3-10700 (667 MHz)
 Part number  9905403-169.A00LF 
 Manufacturing date Week 49/Year 10
 Number of banks  8
 Nominal Voltage  1.50 Volts
 EPP   no
 XMP   no
JEDEC timings table  CL-tRCD-tRP-tRAS-tRC @ frequency
 JEDEC #1  6.0-6-6-17-23 @ 457 MHz
 JEDEC #2  7.0-7-7-20-27 @ 533 MHz
 JEDEC #3  8.0-8-8-22-30 @ 609 MHz
 JEDEC #4  9.0-9-9-25-34 @ 685 MHz

DIMM #    5
 SMBus address  0x54
 Memory type  DDR3
 Module format  UDIMM
 Manufacturer (ID) Kingston (7F98000000000000)
 Size   2048 MBytes
 Max bandwidth  PC3-10700 (667 MHz)
 Part number  9905403-169.A00LF 
 Manufacturing date Week 49/Year 10
 Number of banks  8
 Nominal Voltage  1.50 Volts
 EPP   no
 XMP   no
JEDEC timings table  CL-tRCD-tRP-tRAS-tRC @ frequency
 JEDEC #1  6.0-6-6-17-23 @ 457 MHz
 JEDEC #2  7.0-7-7-20-27 @ 533 MHz
 JEDEC #3  8.0-8-8-22-30 @ 609 MHz
 JEDEC #4  9.0-9-9-25-34 @ 685 MHz

DIMM #    6
 SMBus address  0x55
 Memory type  DDR3
 Module format  UDIMM
 Manufacturer (ID) Kingston (7F98000000000000)
 Size   2048 MBytes
 Max bandwidth  PC3-10700 (667 MHz)
 Part number  9905403-169.A00LF 
 Manufacturing date Week 49/Year 10
 Number of banks  8
 Nominal Voltage  1.50 Volts
 EPP   no
 XMP   no
JEDEC timings table  CL-tRCD-tRP-tRAS-tRC @ frequency
 JEDEC #1  6.0-6-6-17-23 @ 457 MHz
 JEDEC #2  7.0-7-7-20-27 @ 533 MHz
 JEDEC #3  8.0-8-8-22-30 @ 609 MHz
 JEDEC #4  9.0-9-9-25-34 @ 685 MHz

 

 

Darn, thanks for the tip, I thought it was running at 1333 because I checked it in the bios. I guess we will have to wait and see if in the future dell updates the bios to fix this issue? And what are you running that uses 20gigs of ram? if you dont mind me asking Smiley Happy

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Dubbah
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Re: 24 GB Memory working in Studio XPS 435MT for $270

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Check the BIOS screen pic and the CPU-Z listing - it's definitely the mini-tower with the two goofy side-mounted disks.

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Dubbah
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Re: 24 GB Memory working in Studio XPS 435MT for $270

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I'm not holding my breath for a BIOS update - the actual performance improvement from the faster RAM would be very difficult to measure.

I have a VM running Server 2008 R2 at 12 GiB, another 4 GiB Win7x64 VM, plus the stuff running on the host (Win7 x64)

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bttb
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Re: 24 GB Memory working in Studio XPS 435MT for $270

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Dubbah

Thanks for your advice and fast responses -

Looks like I'm buying 24Gb memory and its not too badly priced over here in the UK  - but nowhere near as good value as you managed to obtain it for.

Many Thanks Again

BTTB

 

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Zephyruss
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Re: 24 GB Memory working in Studio XPS 435MT for $270

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Hey Dubbah, great find!

I'm curious. It says in your BIOS that you're running a 940 i7 @ 2.93GHz. I have a 435MT also but it is a i7 920 running at (stock) 2.66GHz. I would probably assume, though, this memory would still work.

Also, why did you opt for the 1600MHz RAM instead of the 1333MHz, since if I understand correctly, this is the max speed for RAM the 435MT will handle?

Thanks

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Dubbah
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Re: 24 GB Memory working in Studio XPS 435MT for $270

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Although nothing is guaranteed, I wouldn't see why it would make a difference if you have a 940 (2.93) or 920 (2.66).   Of course, get the memory someplace that has a ro "restock fee" policy just in case.

The Kingston memory has a 1600 MHz XMP profile, but the default is 1333/1.5v.

And it wasn't really a matter of "opting" for these DIMMs.  I tried many different DIMMs, and most got the dreaded "beep-beep" POST error.  These Kingston DIMMs went on sale for $89.99 for two (8 GiB) with no restock fee.

I tried two - they worked in the same channel.  Next day I bought 4 more.  They worked, and I have 24 GiB running without any problems.

And, note that this "1600 MHz" RAM is actually running at 1066 MHz in my 435MT.  I don't worry about that, though, because having 24 GiB of 1066 MHz is far better than having 12 GiB of 1066.

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