Original Link: https://www.anandtech.com/show/23



After being virtually stunned by the quality and reliability of the Tyan Tiger S1692 LX Pentium II Motherboard the Tyan Titan Turbo seemed to be a sure fire winner among the Socket-7 motherboards, not only did it combine the standard array of "Tyanesque" features including extreme expansion capabilities but the Titan Turbo series of motherboards would be the very first units from Tyan to support (albeit unofficially) the 75 and 83.3MHz bus speeds.  Although we can't say that the Titan Turbo ATX-2 is the world's best motherboard for users looking for excellent 75/83.3MHz bus speed support we can't say that Tyan's first attempt at tailoring to the overclocking market was a total failure.  It would be more accurately put to call Tyan's maiden voyage into the uncharted waters of the overclockers' realm a "nice try," and that can be interpreted anyway you would like now, want to know what sparked that decision?  Read on.


Motherboard Specifications

Socket Style: Socket 7
Chipset: i82430TX
Cache: 512KB
Form Factor: ATX
BUS Speeds: 50 / 60 / 66 / 68 / 75 / 83 / 100 MHz
Clock Multipliers: 1.5x / 2.0x / 2.5x / 3.0x
Voltages Supported: 2.0v - 3.5v (0.1v increments)
RAM Slots: 2 168pin DIMM Slots
6 72pin SIMM Slots
PCI/ISA Slots: 5 PCI Slots
3 ISA Slots (1-Shared / 4-Full Length)
BIOS: AWARD PnP BIOS
PCI EIDE Controller: Super I/O
2 EIDE Channels
1 FDD Channel
2 Serial /1 EPP

 


The Good

Absent from the Titan Turbo ATX-2's beautiful layout are the sparsely populated oversized capacitors that made the Tiger ATX a huge hit among those hungry for stability.  While there are a few capacitors on the motherboard, one would expect much more from Tyan, particularly since the Socket-7 IC (Integrated Circuit) is placed awkwardly a great distance from the closest capacitor.  It would've been nice if Tyan adhered to the ATX Form Factor Specification since their Titan Turbo ATX-2 is classified as being an ATX motherboard (hence the name ATX-2) however the Socket-7 IC is placed very close to the center of the motherboard, out of the path of your Power Supply's circulating fan, meaning overclocking this motherboard could pose to be a problem if heat is factored in (looks like its time for a few of those 4" case fans).

The Titan Turbo features a hefty 6 SIMM and 2 DIMM slots, once again accentuating  Tyan's ability to fit their motherboards to the mold of just about any user.  Have tons of SIMMs laying around...or are DIMMs more of your "bag?"  Either way the Titan Turbo ATX-2 is nearly perfect for memory expansion, however the Titan Turbo is an Intel TX based motherboard, meaning it will only cache a maximum of 64MB of RAM (all memory above the first 64MB will experience a 5 - 15% performance hit under Windows 95 while being accessed). 

Continuing on this trend of expansion, Tyan opted to include 5 PCI slots and 3 ISA slots with this latest addition to their extensive line of motherboards.  While some argue that 3 ISA slots isn't enough, you will find that the majority of peripherals you will buy today are often only available (in large quantities) in PCI versions, the 3 ISA slots the Titan Turbo is outfitted with is more than enough to take care of your Modem, Sound Card, and maybe even another peripheral, but for things like SCSI cards, and Ethernet cards, PCI is the way to go.

The ATX form factor (if you can call it that since Tyan barely adheres to the specification) of the Titan Turbo is made a bit simpler by the use of a single row of peripheral connectors instead of the more common stacked connector strip.  Since most ATX cases are shipped out with only one type of ATX Backplate, the single row backplate, this will make building your system a bit more pleasant, there is no worse feeling that getting all the parts for your new system and realizing that something doesn't fit properly, even if it is something as insignificant as a backplate that isn't made for your motherboard.  Tyan achieves this by removing the USB Headers off the motherboard, while very few peripherals that are readily available support/require USB, having those two USB ports on your motherboard makes you feel more complete, just in case you ever need to use them.  If you're a proud owner of any USB peripherals you may want to consider a different motherboard, which shouldn't affect many buyers out there.

Configuring the BIOS on Titan Turbo is a breeze, unlike its Pentium II counterpart, the Titan Turbo uses an Award PnP BIOS Setup versus the AMI WinBIOS found in the Tiger ATX.  A world of differences exists between the two types of Setup utilities, however when it boils down to functionality, the Award BIOS Setup Utility covers the basics and then some.  Its familiar DOS-Like interface is a welcome change from the dominating windows and icons of 95, however if you can't remember what DOS used to look like...well...you may have been better off with the WinBIOS ;)

Tyan's User's Manual can be a bit overwhelming at first, but the outstanding publication quality of the manual speaks for itself.   Comparable to offerings from ABIT, Chaintech, and AOpen, the Tyan Manual isn't too intimidating for the beginners and isn't too vague for the experts.  Inside the manual is the documentation necessary to get your system up and running at 110% of its ability, meaning it also documents the two overclocked bus speeds supported by the Titan Turbo ATX-2.

The performance of the Titan Turbo can be defined as being average, not slow, yet there is much room for improvement, the performance of the motherboard at the 75MHz bus speed is barely competitive however.   As mentioned before, Tyan's first attempt at an overclocker's motherboard was a "Nice Try." 

updated.gif (1180 bytes)Here's an interesting bit of information, Tyan's first attempt at an overclocker's motherboard also happens to be the very first TX motherboard that supports, albeit unofficially, the 100MHz Bus Speed.   The Titan Turbo ATX-2 is highly erratic at this setting, however if you are interested in knowing how well Socket-7 systems perform at the 100MHz setting check out my article on the 100MHz Bus Speed entitled: 100MHz Bus Speed and Socket-7 Motherboards: The solution to our problems or a problem without a solution?

The Bad

Remember that excellent user's manual Tyan printed up for the Titan Turbo?  You'll need it, the jumpers for the Bus Speed and Clock Multiplier are scattered all over the motherboard, not to mention that the voltage setting jumpers are placed in the worst possible area of the motherboard, between two capacitors and the kb/mouse connectors. 

If Tyan had followed the ATX specification the Titan Turbo would've had a nearly perfect layout, but I guess making room for those 6 SIMM / 2 DIMM slots require the movement of the Socket-7 IC and the ATX P/S connector, which could cause a mess in your case if you happen to have a Mini-Tower as the home of the Titan Turbo.



IRQ Usage

  • Auto-detects PnP Cards after HDD Detection

  • Allows user to enable/disable PnP OS Installed

  • Allows user to Control IRQ Assignment Manually

 


BIOS Settings

Tyan Titan Turbo ATX-2 Chipset Features Setup
Item FPM EDO/SDRAM 60/66MHz Bus EDO/SDRAM 75/83MHz Bus Safe
Auto Configuration: Disabled Disabled Disabled Disabled
DRAM Leadoff Timing: 10/6/4 10/6/4 10/6/4 10/6/4
DRAM Read Burst (EDO/FP): x333/x444 x222/x333 x222/x333 x333/x444
DRAM Write Burst Timing: x333 x222 x222 x333
Fast EDO Lead Off: Disabled Enabled Enabled Disabled
Refresh RAS# Assertion: 4 Clks 4 Clks 4 Clks 5 Clks
Fast RAS To CAS Delay: 3 2 3 3
DRAM Page Idle Timer: 2 Clks 2 Clks 4 Clks 4 Clks
DRAM Enhanced Paging: Enabled Enabled Enabled Enabled
Fast MA to RAS# Delay: 2 Clks 1 Clks 2 Clks 2 Clks
SDRAM (CAS Lat/RAS-to-CAS): 3/3 2/2 3/3 3/3
SDRAM Speculative Read: Disabled Enabled Disabled Disabled
System BIOS Cacheable: Enabled Enabled Enabled Enabled
Video BIOS Cacheable: Enabled Enabled Enabled Enabled
8 Bit I/O Recovery Time: 1 1 1 2
16 Bit I/O Recovery Time: 1 1 1 2
Memory Hole At 15M - 16M: Disabled Disabled Disabled Disabled
PCI 2.1 Compliance: Enabled Enabled Enabled Disabled
Pipeline Cache Timing: Faster Fastest Faster Faster
Chipset NA# Asserted: Enabled Enabled Enabled Enabled
Mem. Drive Str. (MA/RAS): Auto Auto Auto Auto

 


Recommended SDRAM

This little addition to my review layout was put in here just so you all can have an idea of what brand of SDRAM I recommend and have tested with the board, just to avoid problems in the future if you decide to purchase the board.

Recommended SDRAM: Advanced Megatrends SDRAM; Corsair SDRAM
SDRAM Tested: 1 x 64MB Advanced Megatrends SDRAM DIMM; 2 x 32MB Corsair SDRAM DIMMs

Manufacturer: Advanced Megatrends
Purchase Web-Site: http://www.megacom.com

Manufacturer: Corsair Microsystems
Purchase Web-Site: http://www.nf-ny.com/nfny/comp.html



The Test

In recent times, choosing a motherboard cannot be completely determined by a Winstone score. Now, many boards come within one Winstone point of each other and therefore the need to benchmark boards against each other falls. Therefore you shouldn't base your decision entirely on the benchmarks you see here, but also on the technical features and advantages of this particular board, seeing as that will probably make the greatest difference in your overall experience.

How I Tested

  • Each benchmark was run a minimum of 2 times and a maximum of 5 times, if the motherboard failed to complete a single test within the 5 allocated test runs the OS/Software was re-installed on a freshly formatted Hard Drive and the BIOS settings were adjusted to prevent the test from failing again.  All such encounters were noted at the exact time of their occurrence.

  • Business Winstone 97 / Business Graphics Winmark 97 was run at each individually tested clock speed, if reliable scores were achieved with the first two test runs of the suite an average of the two was taken and recorded as the final score at that clock speed.  If the test system displayed erratic behavior while the tests were running or the results were incredibly low/high the tests were re-run up to 5 times and an average of all the test runs was taken and recorded at the final score at that clock speed

  • Business Winstone 98 / Business Graphics Winmark 98 was run on the Pentium MMX at 233MHz, and the AMD K6 at 233MHz, the averaging rules for these tests are the same as those used for the 97 test suites. 

  • After each motherboard was tested a complete format of the test hard drive was initiated and the OS/benchmarking software was re-installed afterwards a defragment was initiated using Windows 95's Disk Defragmentation Utility

  • No foreign drivers were present in the test system other than those required for the system to function to the best of its ability

  • All foreign installation files were moved to a separate partition during the test as to prevent them from effecting the test results

  • All tests were conducted at 800 x 600 x 256 colors

Test Configuration

Processor(s): AMD K6/233 ANR & Intel Pentium MMX 233 & Cyrix 6x86MX-PR2/200
Board Revision: B
RAM: 1 x 64MB Advanced Megatrends SDRAM DIMM
2 x 32MB Corsair Microsystems SDRAM DIMMs
Hard Drive(s): Western Digital Caviar AC21600H
Video Card: Matrox Millennium (2MB WRAM)
Busmaster EIDE Drivers: Intel 3.01
Video Card Drivers: MGA Millennium 4.03.00.3410
OS: Windows 95 Service Release 2

 

Windows 95 Performance of the Tyan Titan Turbo ATX-2
CPU Business Winstone 97
AMD K6/208 Not Supported
AMD K6/225 55.6
AMD K6/233 55.2
Cyrix 6x86MX-PR2/200 (150/75) Failed
Cyrix 6x86MX-PR2/200 (166/66) Failed
Cyrix 6x86MX-PR2/200 (166/83) Not Supported
Intel Pentium MMX 208 Not Supported
Intel Pentium MMX 225 53.1
Intel Pentium MMX 233 51.7
Intel Pentium MMX 250 Not Supported
Intel Pentium MMX 262.5 55.1

Not sure why the Titan Turbo ATX-2 kept on failing Winstone with the Cyrix 6x86MX, hopefully this will be corrected in a later revision of the motherboard.

 


The Final Decision

Expandability, and quality, two words almost synonymous with the name Tyan, and even more-so with the name Titan Turbo ATX-2.  As long as you aren't a major overclocker or a 6x86MX owner the Tyan Titan Turbo is worth at least a good glance, hopefully Tyan's next attempt at an overclocker's motherboard will be a bit more satisfying, but until Tyan either revises this motherboard or releases a new model Tyan still shouldn't be considered a manufacturer for overclockers.  If you're not an overclocker however, the Titan Turbo becomes much more of an opportunity buy...

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