Basic Features: Abit AT8

Specification Abit AT8
CPU Interface 939-Pin Socket supporting AMD Athlon 64 / 64FX / 64X2
Chipset ATI CrossFire Xpress 200 (RD480) - North Bridge
ULi M1575 - South Bridge
HTT Speeds 200MHz ~ 400MHz in 1MHz increments
CPU Clock Multiplier Auto, 4x ~ 12x in 1x increments (4000+ CPU setting, maximum multiplier dependent upon processor utilized)
Memory Speeds Auto, 200MHz, 266MHz, 333MHz, 400MHz, 433MHz, 466MHz, 500MHz
PCI Bus Speeds Fixed at 33.33MHz
PCI Express Bus Speeds Auto, 90MHz ~ 140MHz in 1MHz increments
LDT Multipliers Auto, 200MHz, 400MHZ, 600MHz, 800MHz, 1GHz
LDT Link Speed Auto, 8-bit, 16-bit
Core Voltage Auto, 1.4000V ~ 1.8000V (AMD 64 4000+) (settings in 0.0250V increments, base +.4000V for max voltage), (base / max voltage dependent upon CPU)
DRAM Voltage Auto, 2.50V ~ 3.20V
NB 1.8V Setting 1.50V ~ 2.00V, in .05V or .10V increments
NB 1.2V Setting 1.00V ~ 1.80V, in .10V increments
HT Voltage 1.20V ~ 1.40V, in .05 increments
DDR Reference Default, +10mV ~ +60mV, -10mV ~ -60mV, in .10mV increments
Memory Slots (4) x DIMM, max. 4GB, DDR 400/333/200, non-ECC, un-buffered memory, Dual Channel Operation supported.
Expansion Slots (2) x PCI-E x16 (each slot operates in 1x8 mode for CrossFire operation)
(2) x PCI-E x1
(2) x PCI 2.3
Onboard SATA ULi M1575: (4) x SATA II (3.0Gb/s, NCQ, Hot Plug)
Onboard IDE ULi M1575: (2) x UltraDMA 133/100/66/33
SATA/IDE RAID ULi M1575:
(4) x SATA II 3Gb/s - RAID 0, RAID 1, RAID 0+1, RAID 5
Onboard USB 2.0 (8) USB2.0 ports (four ports, two headers for four more ports)
Onboard LAN Realtek RTL8110SB PCI 10/100/1000Mb/s LAN - LOM Controller
Onboard Audio Realtek ALC-882D - 7.1 channel capable HD Audio Codec, Dolby Digital Live capable
Onboard Firewire TI TSB43AB22 IEEE 1394 chipset - 1394A capable
Power Connectors 24-pin ATX
4-pin ATX 12V
4-pin 12V
Back Panel I/O Ports 1 x PS/2 Keyboard
1 x PS/2 Mouse
1 x S/PDIF Optical Out
1 x S/PDIF Optical In
1 x Audio I/O Panel
1 x RJ45 LAN
4 x USB 2.0
1 x IEEE 1394
Other Features Silent OTES Technology
µGuru Technology
- Abit EQ - hardware monitoring system
- OC Guru - overclocking utility
- Fan EQ - fan monitoring utility
Flash Menu - windows based flash utility
BlackBox - windows based diagnostic utility
BIOS Award 1.1 (2/15/06, in final testing for public release)

The Abit AT8 is a value-based performance board targeted towards the enthusiast user. The board ships with an extensive accessory package that includes the standard assortment of IDE/SATA cables, power connectors, and USB header cables. Abit also includes an extensive driver CD along with their desktop µGuru utilities.

This is the BIOS setup utility screen and it displays the change configuration categories available on the board. The BIOS features the ability to save and load individual profiles, which can be a time saver based upon whether you want to quickly overclock the system at various settings or operate at stock settings. This feature worked superbly during our overclocking tests.

The OC Guru Configuration section allows the user to manually set the CPU multiplier, HTT speeds, PCI-E clock speed, and multiple voltage selections.

The Advanced Chipset Features section allows the user to manually set individual parameters for LDT multipliers, Video configuration, and DRAM frequency settings.

The DRAM Configuration section allows the user to control memory timing adjustments and dividers. The BIOS allows for an Auto setting that will determine the best timing attributes based upon memory type, divider, and bus speeds. The SPD setting will adjust the memory automatically to the manufacturer's setting or you can adjust the multitude of memory timings manually. We found in our testing that the system would typically adjust the memory clock settings incorrectly when utilizing the Auto setting and would leave the system in a non-post state or unstable state due to the 1.0 BIOS incompatibility issues with several types of memory modules.

The LDT and PCI Bus Control section allows the user to adjust the upstream and downstream LDT bus width bit rate along with the LDT bus frequency. Although the description describes the ability to control the PCI bus, it is actually not available, although the frequency is fixed at 33.33MHz.

The Abit EQ configuration section allows the user to monitor and set parameters for temperature, voltage, fan speed, and fan control (up to six fans). This feature set is extensive and allows monitoring and control of several board features either from the BIOS or the windows based EQ monitoring system.

Abit includes their excellent µGuru windows utility that allows the user to overclock the HTT speed, change certain voltages, and monitor hardware settings in real time without the need for rebooting. The OC Guru worked very well during our overclock testing.

Index Abit AT8: Features
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  • CrystalBay - Friday, March 10, 2006 - link

    sorry, ;)
  • Witchfire - Friday, March 10, 2006 - link

    I have to disagree that the reviewers do not follow up on comments or complaints from users. Gary has been communicating with me regularly about my concerns with the AT8 I've been having, and has been very helpful. I'm no eleite member, and haven't even managed triple digit postings, yet he took the time & trouble to listen to my concerns, attempt to recreate them on his mobo, and lend assistance.

    Thanks, Gary, your help and professionalism have been greatly appreciated.
  • bthjf1 - Friday, March 10, 2006 - link

    The problem with all these reviews is that they don't go back to check what's is going one with the board they just tested with normal users. A number of peoples (one being me) have been arguing (with their helpdesk) and waiting for 3 months now for Abit to provide a proper support for the intel Presller core on the AW8 motherboard series (i955) or proper support for different type of memory. All I can say Abit support is very very poor and I will strongly advice anybody thinking of purchasing a board from Abit to look elsewhere. Just poppin's into http://forum.abit-usa.com/showthread.php?t=102711">http://forum.abit-usa.com/showthread.php?t=102711 and have a read ...
  • Gary Key - Friday, March 10, 2006 - link

    quote:

    The problem with all these reviews is that they don't go back to check what's is going one with the board they just tested with normal users.


    I cannot comment on other review sites, but I can assure you that Wes and I do go back and look at the history of the motherboards tested and take comments from users very seriously. I know I spend at least 10 hours a week assisting users with their issues and at times being an arbitrator for the customer with the supplier. We both spend a similar amount of hours each week if not more working directly with the suppliers on issues and trying to ensure problems are solved or at least corrected in the next product design. While we are not always successful, I do believe you would be surprised at the number of issues that are solved quickly. I will bring up your AW8 issue with Abit this weekend. :)
  • bthjf1 - Saturday, March 11, 2006 - link

    Thanks for any help you can provide. The comment was not direct to Anandtech but to a couple of other review sites which didn't really care (ie: not my problem). The concern with Abit is since the takeover from USI the support have not been great ~ total of communication. I've been reading Anandtech for many years (too long !) and my post was more to get some help with Abit . They will listen to Anandtech since you can reach millions but not necessary a single user ;-)

    Jon
  • Plasmoid - Friday, March 10, 2006 - link

    I have to agree with you, Abit need to sort out their support.

    The benchmarks prove that this is a great motherboard, interestingly it outperforms all its rivals at stock just like the AN8, but the bios lets it down (interestingly just like the AN8)
    If they can sort out these bios issues fast it should be a fantastic value motherboard. There were problems with the temperature reporting on the AN8 and incompatibility with XI-FI cards from creative that took much to long to address though. Im sad to say this kind of thing is what you can get with Abit. Hopefully it is a short term problem that they have had over the last 6 months.

    All bad things said im really happy with my abit motherboard, and the OCGuru certainly is a godsend for overclockers. Havent seen such things as completly dynamic fan speed control in any other motherboard.
  • Patrese - Friday, March 10, 2006 - link

    Am I the only one who finds this kind of positioning of the IDE connectors crappy? Most people who are buying PCs now are using SATA HDs, so the connectors should be exactly where they are, on the low-right of the board. But the IDEs are used for CD-RW/DVD-RWs drives mostly, and would be much better suited to the top right of the board IMO. I got a good-old AN7 and I just hate tbe IDE cables crossing my case from top to bottom just to reach the connnectors...

    Besides that, great review and promising mobo, once the BIOS is fixed. It's great to see Abit back!
  • n7 - Friday, March 10, 2006 - link

    I think his comments were a tad harsh, but i am one of those users who read the Asus A8R-MVP review here, & got pretty excited.
    I actually starting spreading the praises on forums i visit of this great value mobo.

    Then i got the mobo, & actually, i was quite happy with it.
    For a few weeks, that is.

    Then i started discovering all sorts of issues, the worst being the ethernet hanging/crashing, something which many others have also had issues..

    I now hear there's a Marvell driver directly from their site that supposedly fixed the problem, but i've already bought an ethernet card, so i don't really care to try it, since both the driver from the CD & the driver from Windows update didn't work properly.

    Another issue i've encountered is wildly fluctuating vcore. (1.31-1.41V, for example! - with overvoltage disabled)
    Others have also reported this. I am using software to measure this, so it's possible that it is incorrectly reading it, but i'm guessing not.

    Another problem is that even smaller overclocks aren't stable in games for me, whereas i had much higher OCs stable with my previous Neo2.
    I cannot figure out why yet, but it seems to be either the fluctuating vcore, or it's been mentioned that the RAM isn't even stable even with a divider when using 1T.

    It's one thing for OCs to vary between mobos, but going from 2.55 GHz to 2.2 GHz with the same hardware? No way.

    I am going to test things this wknd with the RAM @ 2T, & see if that fixes the stability issues, but one shouldn't have to run RAM @ 2T on any good motherboard in the first place.

    Anyway, what i'm trying to say is that while some many not have had trouble, a lot of people have, which is why there's negativity surround that A8R-MVP reviews.

    As far as i am concerned, it seems like Asus used us who bought the A8R-MVP as beta testers so they could release the A8R32-MVP with the issues fixed...

  • Zoomer - Tuesday, March 21, 2006 - link

    I get a similar problem with vCore on their A8N-E. Perhaps its due to Asus's choice of voltage regulator?
  • Pete84 - Friday, March 10, 2006 - link

    With conroe ~6 months away, I wonder how badly AMD's FX and high end sales will suffer. Who is going to spend out for a brand new system when it will be destroyed by Conroe?

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