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Intel DX58SO Smackover X58 Motherboard E-mail
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Written by Miles Cheatham - Edited by Olin Coles   
Monday, 22 December 2008
Table of Contents: Page Index
Intel DX58SO Smackover X58 Motherboard
Intel Core i7: Platform Information
Intel X58-Express Platform
DX58SO Features and Specifications
Intel DX58SO First Look
Intel DX58SO: Closer Look
Intel DX58SO BIOS Options
Testing Methodology
Intel DX58SO: Overclocking
PCMark Vantage System Tests
Vantage and 3DMark06 Tests
SANDRA 2009 System Tests
EVEREST Ultimate System Tests
Crysis, WIC and Power System Tests
"Smackover" Final Thoughts
Intel DX58SO Conclusion

Intel DX58SO BIOS Options

The chart below will give you a much better idea of just how far Intel's DX5SO has come. This motherboard's BIOS is every bit as cutting edge as many of its competitors and in fact offers several features that boards such as the ASUS P6T Deluxe omitted. The two features that are of the most importance are the ability to independently adjust the multipliers of each core independently of the others and the ability to utilize Turbo Boost in both stock and overclocked modes of operation. We can imagine a number of situations where these two features alone can prove invaluable.

Intel DX58SO Smackover Motherboard
Detailed Manual BIOS Adjustments
Active Processor Cores ALL, 1, 2
Active Multithreading Enable, Disable
Failsafe Watchdog Enable, Disable
Host Clock Frequency Override Auto, Manual
Host Clock Frequency 133 - 240 MHz in 1 MHz increments
Processor Overrides
Static CPU Voltage Override Default, 1.0 - 1.64 Volts in .125V increments
Dynamic CPU VOltage Offset 0 - 494mV in 6mV increments
Maximum Non-Turbo Ratio Processor dependant 12 - 24X in 1X increments with i7 965 Extreme
CPU Idle State Low Performance - High Performance
Turbo Mode Enable, Disable
TDC Current Limit Override 0 - 500 Amps in 1 Amp increments
TDP Power Limit Override 0 - 500 Watts in 1 Watt increments
4-Core Ratio Limit 12 - 63X in 1X increments
3-Core Ratio Limit 12 - 63X in 1X increments
2-Core Ratio Limit 12 - 63X in 1X increments
1-Core Ratio Limit 12 - 63X in 1X increments
Bus Overrides
IOH Core Voltage Override 1.10 - 1.50V in .025V increments
QPI Voltage Override 1.5 - 1.80V in .025V increments
QPI Data Rate Auto, 4.8 GTS, 5.866 GTS, 6.4 GTS
PCI Express Burn-in Percentage Default = 100 MHz, 101 - 110 MHz in 1MHz icrements
PCI Latency Timer 32 - 248 in 32 increments
High Precision Event Timer (HPET) Enable, Disable
Memory Overrides
Performance Memory Profiles Auto, Manual(User Defined)
Uncore (UCLCK) Multiplier 12X - 30X in 1X increments
Memory Multiplier Auto, 6, 8, 10, 12
Memory Voltage 1.5 - 2.5V in .04V increments
Command Rate Auto, 1T, 2T
DIMM DQ REF +128 thru -127 in increments of 1
DIMM CA REF +128 thru -127 in increments of 1



# eSATA port not stableGuru 2010-02-28 02:25

Please dont buy this board if you are planning to use eSATA port.
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# I've had eSATA issues alsoDogwood 2010-04-16 02:30
I was using an eSATA volume on my DX58SO for backup using Clonezilla. At first this worked fine, but at some point I started getting I/O errors in the middle of the process. I swapped out various components and tried both ports, but the unreliability persisted. I was speculating that maybe one of the BIOS updates rendered the eSATA ports unstable (it would presumably be BIOS, because Clonezilla isn't running Windows or Windows drivers). Very's interesting to see that someone else cautions against eSATA. Anyway, I don't have a critical need for eSATA, so I've just stopped using it; can substitute USB, albeit with loss of speed. But I'm never comfortable when something isn't working properly; I want to know the full story.
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# RE: I've had eSATA issues alsoGuru Prasad H B 2010-04-16 06:28
I faced the same problem, with WD MY book (1TB) external Hard disk.
The eSATA port works for first 5 min, and the windows freezes for some time or i used to get PD(or some such) time out warning and newer stops. Initially i suspected about the WD hard disk, when i contacted them, they said there is some problem with marver controller (which is used in DX58SO mother board). so i took this issue with Intel support team, but its of no use..

Tried installing latest BIOS, Marvel driver, Intel Matrix storage drivers which are available in Intel webpage, its of no use.

My intention to buy DX58SO was mainly for using eSATA port for which i had huge data (around 25 Gb) to be used for testing purpose. now because of the one HDD (eSATA) is not working why will i invest on another HDD for which to make sure the problem is not there in Intel Mother board. So i brought low cost PCI-eSATA card (which is 10 $) which is working fine with DX58SO.
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# RE: Intel DX58SO Smackover X58 MotherboardDogwood 2010-04-16 13:40
Aha! I finally found an official word that maybe clarifies the need for the unusual extra "auxiliary power" connector on the DX58SO. This Intel page indicates that the extra power cable is only necessary when the primary power connector is an old 2x10 connector, but it's not necessary with a newer 2x12 connector. So this is just Intel's way of making the board compatible with older hardware.

"Next generation high-end graphics cards will consume from 75 watts up to 150 watts of power. The PCI Express x16 connector can deliver up to 75 watts. In order to achieve 75W, an ATX12V power supply with a 2x12 main power connector is recommended. However, 75W can also be achieved with ATX12V power supplies with 2x10 main power connector when using the 1x4 power connector on the board."
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# RE: Intel DX58SO Smackover X58 MotherboardDave_O 2010-07-23 08:31
FYI - Purchased this board in June, 2010. Intel has changed the internal SATA connectors so they plug in from the back, not from the top as noted in the review.
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# RE: RE: Intel DX58SO Smackover X58 MotherboardOlin Coles 2010-07-23 08:33
Thank you for the update! Do you happen to know which revision your motherboard is (should be printed), so I can update this article?
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# RE: RE: RE: Intel DX58SO Smackover X58 MotherboardDave_O 2010-07-23 09:07
The label on the box is - AA E29331 - 702
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# RE: RE: RE: RE: Intel DX58SO Smackover X58 MotherboardOlin Coles 2010-07-23 09:15
Hmm... usually it will be printed on the motherboard itself. For example: R2 or Rev 2.
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# RE: Intel DX58SO Smackover X58 MotherboardClyde Snider 2011-11-24 05:41
Where did the name "Smackover" come from? Was it from the town Smackover, Arkansas?
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# RE: RE: Intel DX58SO Smackover X58 MotherboardDavid Ramsey 2011-11-24 08:04
Good question. Intel doesn't say.
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