Dranoweb
1 Copper

Precision T3500 CPU upgrade to X5650 - help needed

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I current have posession of a Dell Precision WorkStation T3500


Currently running well on a Xeon W3520

I recently obtained a Xeon X5650


Upon swapping the cpu I get error code PB7 "BIOS not excecution"

In display terms "amber power light and lights 2,3 & 4 flashing"

I have the XPDFK motherboard and the factory 12gb ram DDR3 1333 installed.

I'm attempting to determine if this is a compatibility issue, dead CPU, or motherboard problem.

I should also note that I have installed the original chip again, and I'm using the very same machine to wrote this post. This leads me to believe that I have not damaged the socket in the process.

I'd love to go 6 core, but if that simply isn't possible on this motherboard I'd be happy with quad.

Any assistance or hints would be helpful.

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Techgee
3 Zinc

RE: Precision T3500 CPU upgrade to X5650 - help needed

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With T3500 being a single CPU socket machine, single socket Xeons are generally less expensive per performance than Xeon processors that supports dual socket configurations (like X5600 series).

For 6 core processors, W3670, W3680 or W3690 are single socket CPUs with similar performance (in single CPU mode) to X5670, X5675, X5680 and X5690, but are generally less expensive, or about the same price for better performance. 

W3670 3.2 GHz 6 core are going for about $95 on ebay right now.  W3690 3.46 GHz 6 core around $195.

These should be faster than a 2.93 GHz X5670.  TDP of X5670 is lower, though (95W vs. 130W) - not sure if that matters - may require a cooling upgrade.

That said, seems X5670 in 9KPNV T3500 works.  See here, which also has a long list of compatible CPUs for the T3500 at the beginning of the thread.

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7- Thorium

RE: Precision T3500 CPU upgrade to X5650 - help needed

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DELL PRECISION T3500 MOTHERBOARD

DP/N 9KPNV K095G XPDFK LGA1366 DDR3

The issue is that its not EVER going to work. It does work on some because I see them on ebay all the time with the X5650. However I do not know what the bios version and motherboard part number etc is.  I'm sure it has something to do with motherboard version and chipset revisions.

But I'm not dell engineering so this information is not EVER forthcoming.

http://ark.intel.com/products/47922/Intel-Xeon-Processor-X5650-12M-Cache-2_66-GHz-6_40-GTs-Intel-QPI

Intel® Xeon® Processor X5650
(12M Cache, 2.66 GHz, 6.40 GT/s Intel® QPI) DDR3 800/1066/1333

Max Memory Size (dependent on memory type) 288 GB

Lithography 32 nm
VID Voltage Range 0.750V-1.350V

 

http://ark.intel.com/products/39718/Intel-Xeon-Processor-W3520-8M-Cache-2_66-GHz-4_80-GTs-Intel-QPI

Intel® Xeon® Processor W3520
(8M Cache, 2.66 GHz, 4.80 GT/s Intel® QPI) Max Memory Size (dependent on memory type) 24 GB

DDR3 800/1066
Lithography 45 nm
VID Voltage Range 0.800V-1.375V

Its a guess but I think all these work.

Processor Name                                             Cores    TDP

Intel® Xeon® Processor W3565
(8M Cache, 3.20 GHz, 4.80 GT/s Intel® QPI)     4     130 W     
    
Intel® Xeon® Processor W3550
(8M Cache, 3.06 GHz, 4.80 GT/s Intel® QPI)     4     130 W     
     
Intel® Xeon® Processor W3580
(8M Cache, 3.33 GHz, 6.40 GT/s Intel® QPI)     4     130 W     
    
Intel® Xeon® Processor W3520
(8M Cache, 2.66 GHz, 4.80 GT/s Intel® QPI)     4     130 W     
    
Intel® Xeon® Processor W3540
(8M Cache, 2.93 GHz, 4.80 GT/s Intel® QPI)     4     130 W     
     
Intel® Xeon® Processor W3570
(8M Cache, 3.20 GHz, 6.40 GT/s Intel® QPI)     4     130 W     
     
Intel® Xeon® Processor W3503
(4M Cache, 2.40 GHz, 4.80 GT/s Intel® QPI)     2     130 W         

Intel® Xeon® Processor W3505
(4M Cache, 2.53 GHz, 4.80 GT/s Intel® QPI)     2     130 W         

Intel® Xeon® Processor W3530
(8M Cache, 2.80 GHz, 4.80 GT/s Intel® QPI)     4     130 W   

The Original spec sheet says

http://i.dell.com/sites/doccontent/shared-content/data-sheets/en/Documents/Dell-Precision-T3500-Spec...

 

Intel® Xeon® 3600 or 3500 series processors with up to six-cores and up to 6.4GT/s (Intel QuickPath Interconnect) and up to 12MB shared cache; Turbo Boost Mode on select processors; All processors are 64-bit, support Intel DBS (demand-based switching) and Intel VT (Intel Virtualization Technology) Note: Intel TXT is not supported. Turbo Mode and HyperThreading technology on select processors.

 

 The Late 2010 Spec sheet says.

http://www.dell.com/downloads/global/products/precn/en/q2wk6_dell_precision_t3500_spec_sheet.pdf

 

  Intel® Xeon® 5600 series processors up to six-cores with up to 6.4GT/s (Intel QuickPath Interconnect) and up to 12MB shared cache. Turbo Boost Mode on select processors
All processors are 64-bit, support Intel DBS (demand-based switching) and Intel VT (Intel Virtualization Technology) Note: Intel TXT is not supported. Turbo Mode and HyperThreading technology on select processors

 Which leads me to believe that there is more than one motherboard Revision.

 

 


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Dranoweb
1 Copper

RE: Precision T3500 CPU upgrade to X5650 - help needed

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Ok, so firstly, you give conflicting information.

You say it will "never" work, and then tell me that it does in "some cases"
This has been my source of confusion in the past.

Noted that the lithography is different between chips.

The later dell information suggest that the X5650 is compatible.

Yes there are multiple motherboard revisions - 3 of them in fact - you yourself posted the part numbers without realizing:

"DP/N 9KPNV K095G XPDFK LGA1366 DDR3"

9KPNV

K095G

XPDFK

The last, is the model I have, and reportedly the latest revision.

The X5650 supports the size and type of ram installed (DDR3 1333 Non ECC) and in banks of three (3 memory channels)

As I have also seem 2009 manufactured systems (my mfg date: 16/12/2009) running this chip, I summarize that it "should" be possible.

I'm informed by others that bios versions as old as A08 will also support this chip, I'm running A17, which from reading the changelog on this update also references the X5650.

I did significant homework before attempting this upgrade.

However, I do remain open minded to the fact that some unlisted or unforseeable quirk or variation may prevent it.

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7- Thorium

RE: Precision T3500 CPU upgrade to X5650 - help needed

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There is no conflicting information.

SOME VERSIONS of the board work. I have ZERO Idea as to which ones those are. I am not Dell engineering and information like that is NEVER released to the public.  In recent years even the bios release notes are not forthcoming.

No Idea which ones or which revisions.

Bios Update should be the latest before changing cpu.

Being informed by "others" about bios revisions is a red herring.

Unless they gave you ALL INFORMATION including S Spec, Bios Version, Motherboard revision etc.  All Dell Motherboards start with A00 and some go as far as A09 as far as revision.


Report Unresolved Customer Service Issues
here

I do not work for Dell. I too am a user.

The forum is primarily user to user, with Dell employees moderating
Contact USA Technical Support






Get Support on Twitter @DellCaresPro

Highlighted
Dranoweb
1 Copper

RE: Precision T3500 CPU upgrade to X5650 - help needed

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Just to be clear, I'm not trying to incite hostility here, however I quote:

"

DELL DPN: XPDFK Precision Workstation T3500 Motherboard

Supported Processors:

Intel Xeon 6-Core (X5670, X5650),

Intel Xeon Quad Core (W3550, W3565, W3530, E5640, E5630, E5507),

Intel Xeon Dual Core (W3505, W3503),

Intel Xeon (W3680)"

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Dranoweb
1 Copper

RE: Precision T3500 CPU upgrade to X5650 - help needed

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For future reference of other people who find this post with google like I did.

I just procured a second X5650 processor.

Happy to say it works!

I have XPDFX motherboard, which is the second revision of three motherboards for the T3500.

I'm using the A17 bios version - with 12gb of PC3-8500

It would appear that I had a faulty CPU.

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jaycc1
1 Copper

RE: Precision T3500 CPU upgrade to X5650 - help needed

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 Looking at the X5670 , can anyone confirm it will work with the 9KPNV T3500 motherboard ?

A17 bios with 16gb PC3-12800 ram installed

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Techgee
3 Zinc

RE: Precision T3500 CPU upgrade to X5650 - help needed

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With T3500 being a single CPU socket machine, single socket Xeons are generally less expensive per performance than Xeon processors that supports dual socket configurations (like X5600 series).

For 6 core processors, W3670, W3680 or W3690 are single socket CPUs with similar performance (in single CPU mode) to X5670, X5675, X5680 and X5690, but are generally less expensive, or about the same price for better performance. 

W3670 3.2 GHz 6 core are going for about $95 on ebay right now.  W3690 3.46 GHz 6 core around $195.

These should be faster than a 2.93 GHz X5670.  TDP of X5670 is lower, though (95W vs. 130W) - not sure if that matters - may require a cooling upgrade.

That said, seems X5670 in 9KPNV T3500 works.  See here, which also has a long list of compatible CPUs for the T3500 at the beginning of the thread.

View solution in original post

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