ECS 755-A2: Basic Features


 Motherboard Specifications
CPU Interface Socket 754 Athlon64
Chipset SiS 755 North Bridge
SiS 964 South Bridge
Bus Speeds 200MHz to 232MHz (in 1MHz increments)
PCI/AGP Speeds Fixed at 66/33. Not adjustable.
Available CPU Ratios Normal. Not adjustable.
Core Voltage Normal. Not adjustable.
DRAM Voltage 2.50V to 2.65V in 0.05V increments
AGP Voltage Normal. Not adjustable.
Hypertransport Voltage Normal. Not adjustable.
Memory Slots Two 184-pin DDR DIMM Slots
Single-Channel Configuration
Regular Unbuffered Memory to 2GB Total
Expansion Slots 1 AGP 8X Slot
5 PCI Slots, 1 CNR riser
Onboard Serial ATA RAID SiS 964 (SiS 180) (2 Drives, RAID 0, 1)
Onboard IDE Two SiS ATA133/100/66/33 (4 drives)
Onboard USB 2.0/IEEE-1394 8 USB 2.0 ports supported by 964
No FireWire ports
Onboard LAN Realtek RTL8201 10/100 Ethernet
Onboard Audio Realtek ALC655 codec AC '97 2.3
BIOS Revision Release 12/25/2003



To get rid of any confusion right off the bat, you can see that the 755-A and 755-A2 are clearly identified by model in the ECS packaging. You won't have to open boxes or boards to figure out which Revision you are buying. We suspect that the A2 revision will quickly replace the A and will soon be the only revision offered.



While the ECS 755-A2 may be a value board, the SiS 964 South Bridge allows a very full complement of ports and expansion options. The rear IO panel includes PS2 mouse and keyboard, Parallel port, 1 Serial port, 4 USB, 10/100 LAN, and 3 mini-jacks for audio.



As discussed in our review of the SiS 755 Reference board, the 755 is a traditional Northbridge/Southbridge chipset. The passive cooling on the SiS 755 North Bridge is very basic, but we did not find overheating problems in our limited testing.



The SiS 964 South Bridge offers a very contemporary feature list that ECS has implemented on the 755-A2. While a value board, the ECS 755-A2 still includes two SATA connectors for single SATA drives or RAID 0 (striping) or 1 (mirror).



The ECS 755-A2 uses the Realtek audio codec called ALC655, which is compliant with the latest AC '97 Rev. 2.3. This audio codec features 6-channel sound and UAJ or Universal Audio Jack, with a better than 90db signal-to-noise ratio. This allows automatic jack programming, as we've seen on some boards based on Intel's 865/875 chipsets. The ALC655 is quite similar to the Realtek premium ALC658 sound solution. Additional information and specifications are available at Realtek.

ECS does not provide an SPDIF bracket in the package, but there is an SPDIF I/O header on the 755-A2 motherboard. While the audio inputs and outputs provided are nothing special, the ALC655 audio codec is a lot better than you might expect on a board at the 755-A2 selling price. Once again, we are seeing what can be accomplished with a chipset like the 755/964, since the basic audio hooks are provided by the chipset.



The 755-A2 includes Realtek's 10/100 LAN. While we are often seeing Gigabit LAN on premium motherboards, it is not expected on a board designed to sell at this price point.

ECS 755-A2: Board Layout ECS 755-A2: BIOS and Overclocking
Comments Locked

14 Comments

View All Comments

  • Glenngalata - Saturday, June 5, 2004 - link

    While the review on this board is well written, the overall statements made on the quality of the motherboard and the RMA process is extremely generous to say the least.

    ECS motherboards (and the company) are by far the most difficult to work with due to the total lack of reasonable support the company gives to its customers.

    All top tier manufacturers are moving to 3 year warranties unlike ECS whose 1 year offering is a clear indictation of "buy at your own risk" marketing.

    Asus allows the end user to deal directly with the company for RMA purposes and this feature alone is worth any price premium over a throw away prodcut line.

    The author is being very kind in many areas of the ECS/Customer relationship and at this point in time i have spent more time, frustration and money on long distance phone calls trying to deal with a manufacturer who simply does not acknowlege its own shortcomings product and service wise.

    You get what you pay for and if the manufacturer does not give a direct end user oriented,3 year warranty deal, stay clear and spend the extra for some peace of mind.
  • Memn0ch - Monday, April 26, 2004 - link

    Do you want ECS 755-A2 as a freebie?
    http://www.ocworkbench.com/ocwb/ultimatebb.php?ubb...
  • gglawits - Tuesday, March 30, 2004 - link

    I saw the 755-A2 at Newegg yesterday. For $90, if memory serves.

    Cheers,

    Greg
  • justly - Sunday, February 1, 2004 - link

    I do understand your aggravation with the 755-A, the thing is this article is not about the 755-A is it.

    If you want to call the 755-A2 a POS then lets not stop there, lets also claim ATi drivers are just as bad now as they ever where, or that AMD will always be subpar to Intel in performance.

    Don't get me wrong, I am not condoning ECS for putting out a product that obviously did not have enough testing, or for changing their website.

    As for the claim that the 755-A does not support DDR 400, that may be true, but as long as the possibility exists that it can work with at least one brand of DDR 400 at DDR 400 speeds that conclusion can only be considered theory not fact. Does that mean that the 755-A is a good product, absolutely not.

    Since you brought up a car analogy I will try to use it even though I normally try to avoid them since they often use bogus/exaggerated information. With that in mind you need to consider that Chevy may do their testing to get the best HP rating possible. This means Chevy could test using a new air filter, premium gasoline, new oil and filter and even at a specific ambient temp and relative humidity ect.ect... so unless everything is configured exactly the same a lower HP will result, it may not be much, but if Chevy does this they can make the HP rating accurate, but never obtainable in real life.

    Does Chevy do this, it wouldn't surprise me if they did. Did ECS do something similar with the 755-A, maybe. Was it done on purpose, I doubt it. Was it poor judgment on ECS part, yes. Do I think this is user error, definatly not, its obvious you have a lot of experiance. Did you get duped into buying a subpar product, yes. Do I think all this talk about the 755-A belongs here or on the regular fourms, considering this is a direct link from a article about the 755-A2 I would say most if not all the comments about the 755-A belongs on the regular forums, at least that is my opinion.


  • NFS4 - Saturday, January 31, 2004 - link

    Justly, the point is not that board was just "buggy", it simply doesn't have what they EXPLICITY stated was a supported feature of the board.

    (1) They said that the 755-A supported DDR400 memory on their website.
    (2) Vendors and other venues stated that the board supported DDR400
    (3) The BIOS had setting for DDR400 memory speeds.
    (4) The motherboard box says RIGHT THERE IN PLAIN ENGLISH that it supports DDR400.

    Then when you try to test the board, it's only running at DDR333 speeds despite if you're using DDR400 or higher memory. And the only thing that ECS does is drop the specs down to DDR333 on their website instead of issuing a statement saying that their board doesn't work as advertised.

    It'd be all the same if Chevy announced that their C6 Corvette has 400 HP at the wheels. The dealers list that spec as well. Customers go and buy a C6 and notice that performance is down a bit. They put their car on a dyno and it's making 350HP at the wheels instead. This result is then repeated by countless others that have purchased C6's.



    And I SHOULDN'T have to use a hacked BIOS to get it to work either.
  • justly - Saturday, January 31, 2004 - link

    I don't see the reason to bash the 755-A2 just because of the troubles that people had with the 755-A. The 755-A was the very fist production board that used the SIS chipset.

    Since when did first production run of anything not have quirks or room for improvement. Granted, the 755-A may have had more quirks than most. The thing is you can argue this from both sides. My take on the 755-A is that any enthusiast that expects top of the line, trouble free performance with the least expensive motherboard available (and the first production run of that board to boot) is betting on a long shot, and is bound to loose in most cases. Sorry if I offended anyone.

    As for the 755-A2 it looks like a decent option IMO, although it maybe never be the perfered choice for the hardcore enthusiast.

  • Wesley Fink - Saturday, January 31, 2004 - link

    AMDMB and others have flashed the A2 BIOS to Rev A boards and found that DDR400 then works fine. The mod in the ECS Forum there has his basic Samsung memory now running at DDR432 after the flash. He also reports the memory timings from the 12/25 A2 are now on his Rev A and they work fine.

    In addition a BIOS modder has uncovered hidden vCore adjustments and additional options in the 12/25 A2 BIOS. You can find tne 12/25 BIOS at the AMDMB Forums ECS Forum at http://forums.amdmb.com/showthread.php?s=&thre... I am told the modded BIOS will also post there soon.
  • NFS4 - Saturday, January 31, 2004 - link

    KillaKilla, I got a Biostar NF3 board from ZipZoomFly
  • TrogdorJW - Saturday, January 31, 2004 - link

    This board is a perfect example of why 64-bit is really meaningless for the most part. Two DIMM slots? Not that it really matters, since pretty much all of the other A64 motherboards have issues with populating all three DIMM slots anyway.

    The reason to buy Athlon 64 is that it's faster (and cheaper, relative to the 3.0 and 3.2 GHz P4 chips) in 32-bit software. (Just purchased parts for a 3000+ for a friend - I'll be building it this weekend.) 64-bit software will come during the life of the PC, sure, but you definitely won't need to switch to 64-bit anytime soon. Unless youre running into memory limitations, in which case you better be prepared to pony-up for the Opteron or Athlon FX!

    As for ECS, I've only used two of their motherboards in my PC building life, and neither one impressed me. They may work okay, but I question the long-term choice of their boards over MSI, Asus, A-bit, etc. The 755-A was a prime example of why I no longer consider ECS boards an option. On the bright side, they're usually hella cheap. (And you get what you pay for....)
  • KristopherKubicki - Friday, January 30, 2004 - link

    Unfortunately since we have labs all over the country we try to standardize as much as possible. Even though Wesley used a 9800 Pro, he used the same testbed that Anand, Derek and Evan use - we eliminate as many variables as possible.

    Kristopher

Log in

Don't have an account? Sign up now