Dell Precision T3500 diagnostic code

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whodatwo

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May 19, 2014
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I swapped out stock cooling for corsair liquid cooling unit and upon re boot i have amber power button solid and 2 3 4 flashing green solid amber light on motherboard system was working fine before change i feel like i just missing something small any suggestions?

the system is dell precision t3500
 
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bambiboom

bambiboom

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Apr 7, 2012
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whodatwo,

In the Dell Precision T3500 manual >

http://www.levnapc.cz/ProductsFiles/precision-t3500-servisni-manual-en.pdf

> on Page 7 a 2,3,4 error code is listed as "Possible USB failure".

1. When I see something like this after an upgrade, I always suspect that a motherboard or port connection or was pulled out when making a power connection- that kind of thing. Check all the wires on the MB and USB ports especially on the front, but the back panel as well.

2. However. Dell Precisions also are very fussy about the thermal control. My T5400 has a switch on the lid and if the lid if removed while running, I get a "thermal control is compromised" message and the fans accelerate to a roar. So, if you removed the stock CPU fan, the T3500 may register that there is no CPU cooling or some such -cooling system comprised- and the amber power switch means it should be shut down. It won't have an automatic thermal shutdown as the cooling is probably much improved.

Out of curiosity, did you convert to liquid cooling because of temperatures seen while rendering? I nearly soiled myself when I saw the Quadro 4000 at 102C while rendering. I've watched it constantly ever since and have never seen over 75C but I'm still looking at a Gelid Icy Vision GPU cooler.

An odd problem- let us know what you find out.

Cheers,

BambiBoom
 
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whodatwo

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May 19, 2014
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thank you for the reply turns out i damaged some pins on the board during the process of installing the new cooler witch had a host of problems i wont go into at the moment so ive replaced the board with another dell board some model as before but now it wont see all of my ram and is incorrectly reporting cpu specs could booting pc with cpu installed on bent pins damage cpu and ram? system boots fine and seems to run fine only thing is i have 6 gig of triple channel ram insatlled in dimm 1,2,3 but system reports i have 2 gig of single channel ram installed in dimm 3 and it says i have dual core at 2.8 ghz with 4 logical processors and i have quad core with 8 logical processors i have tried booting with just one ram stick but it wont all 3 have to be in for it to boot suck a mess only reason i tried to change cooler was it was free i thought why not cooler is better i was running little hot mid 90's but i just added a 120mm fan to case and it was ok after that
 
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bambiboom

bambiboom

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Apr 7, 2012
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whodatwo,

Interesting chain of events. This confirms my idea to beware of the very high cost of free stuff!

1. In terms of small things that may be wrong, - just to eliminate them, I would check that the CMOS is in order and especially, update the BIOS if it's not the latest, which is A17 (12/11/13). If/when the BIOS is updated, go through each setting.

2. One other slight consideration is whether the RAM is ECC or not. The T3500 was sold with both ECC and non-ECC (and could be 1066 or 1333) and the replacement motherboard may need to have ECC enabled or if it expects ECC but has non-ECC to be reset to non-ECC.

3. I've never had an X58 triple memory channel board, but I've read that they are fussy about module placement and if you have different sizes together- for example both 2 and 4GB, they have to be located in an exact pattern. However, also displaying the incorrect number of cores makes something BIOS related seem more likely.


Cheers,

BambiBoom
 
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whodatwo

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i have updated bios to a13 i got that from dell web site pc is off at friends house to test ram and cpu to see if they were damaged in my adventures if not looks like im rma the motherboard
 
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whodatwo

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May 19, 2014
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ok just got new board install went fine all ram fine but i am having trouble with cpu this is a print out from speecy CPU
Intel Xeon W3530
Cores 4
Threads 4
Name Intel Xeon W3530
Code Name Bloomfield
Package Socket 1366 LGA
Technology 45nm
Specification Intel Xeon CPU W3530 @ 2.80GHz
Family 6
Extended Family 6
Model A
Extended Model 1A
Stepping 5
Revision D0
Instructions MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, Intel 64, NX, VMX
Virtualization Supported, Enabled
Hyperthreading Supported, Disabled
Bus Speed 133.3 MHz
Rated Bus Speed 2400.1 MHz
Stock Core Speed 2800 MHz
Stock Bus Speed 133 MHz
Average Temperature 37 °C
Caches
L1 Data Cache Size 4 x 32 KBytes
L1 Instructions Cache Size 4 x 32 KBytes
L2 Unified Cache Size 4 x 256 KBytes
L3 Unified Cache Size 8192 KBytes
Cores
Core Speed Multiplier Bus Speed Rated Bus Speed Temperature Threads
Core 0 1600.1 MHz x 12.0 133.3 MHz 2400.1 MHz 40 °C APIC ID: 0
Core 1 1600.1 MHz x 12.0 133.3 MHz 2400.1 MHz 34 °C APIC ID: 2
Core 2 1600.1 MHz x 12.0 133.3 MHz 2400.1 MHz 38 °C APIC ID: 4
Core 3 1600.1 MHz x 12.0 133.3 MHz 2400.1 MHz 35 °C APIC ID: 6

now my problem is when i enable hyperthreading support the cpu is reported as having 2 cores and 4 threads not 4 cores like it should and for some reason it wont post 4 cores 8 threads like it used to before i damaged old board i have bought the same board i have went thru bios i must be missing somthing i have noticed that each core has an APIC ID 0,2,4,6 before there was one on each APIC ID 0,1,2,3,4,5,6,7 i dont notice a difference performance wise in pc but i doubt i ever work this system as hard as it has the ability to work but i would still like to have it set to optimal settings
 
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