ABIT IC7-G

Motherboard Specifications

CPU Interface
Socket-478
Chipset
Intel 82875P MCH (North Bridge)
Intel 82801ER ICH5R (South Bridge)
Bus Speeds
up to 412MHz (in 1MHz increments)
Core Voltages Supported
up to 1.925V (in 0.025V increments)
I/O Voltages Supported
N/A
DRAM Voltages Supported
up to 2.80V (in 0.05V increments)
Memory Slots
4 184-pin DDR DIMM Slots
Expansion Slots
1 AGP 8X Slot
5 PCI Slots
Onboard IDE RAID
N/A
Onboard USB 2.0/IEEE-1394
Eight USB 2.0 ports supported through South Bridge
TI TSB43AB23 IEEE-1394 FireWire Controller (up to 3 ports total)
Onboard LAN
Intel PRO/1000CT Gigabit LAN (CSA bus)
Onboard Audio
Realtek ALC650 codec
Onboard Serial ATA
Two SATA connectors via Silicon Image 3112A Controller (RAID 0, 1, & 0 + 1)
Two SATA connectors via ICH5R (RAID 0 & RAID 1 only)
BIOS Revision
Rev. 13 (5/19/2003)

One of the more impressive features the IC7-G brings to the table is excellent Serial ATA and IDE drive support. With two standard Primary/Secondary IDE connectors and four Serial ATA connectors (via Silicon Image 3112A controller and ICH5R) the ABIT IC7-G is capable of supporting four SATA as well as four IDE drives for a grand total of eight possible drives. While most desktop users will find this feature to be nice instead of necessary there will always be those who desire this capability for something a little more potent than everyday desktop usage.

Another interesting feature of note is the TI TSB43AB23 IEEE-1394 FireWire controller that comes onboard the IC7-G. FireWire support is always a nice thing to have, especially if you're a heavy DV camera user. On the other hand, most users simply want enough USB 2.0 ports as their devices more than likely don't require a FireWire interface. Nonetheless, the addition of a rear FireWire port and bracket are very nice, quite good high-end additions for quite a high-end motherboard.

As shown in the picture above the IC7-G contains some excellent BIOS options for tweaking memory performance. Besides the standard memory timings you find on all Intel chipset-based motherboards, there is a "Performance Mode" option that allows speeds of "Fast", "Turbo", and "Ultra", options which are common among VIA chipset-based motherboards. Unfortunately these options are somewhat broken in the IC7-G BIOS, you can only use them if your memory timings are fairly relaxed. Aggressive timings with Performance Mode disabled yields more performance than relaxed timings with Performance Mode at "Turbo", so we suggest you shoot for the lowest memory timings possible when configuring your IC7-G. Still, it's nice to have options if your memory modules happen to be incapable of CAS 2-3-2-5 or lower.

Another nice BIOS option comes in the form of an adjustable AGP/PCI option available as high as 96MHz/48MHz, which is more than enough for even the most hardcore overclockers. The IC7-G's Vcore range is easily the most intriguing feature of this BIOS. Adjustable up to a staggering 1.925V, this Vcore is especially appealing to overclockers, as too little a Vcore can definitely minimize your overclock despite the fact that most P4 overclockers can do just fine on default voltage (1.525V or 1.550V depending on your P4 processor). The IC7-G hardly undervolts so you will be able to reach approximately 1.90V in real world usage.

Among the more annoying aspects of the IC7-G are its horizontally placed Primary and Secondary IDE connectors. The fact that these connectors are placed horizontally is annoying enough, as you are forced to maneuver your IDE cables through other cables in your case. What's worse is that the Primary and Secondary IDE connectors are placed below the midsection of the motherboard, meaning the IDE cables that come bundled with the IC7-G may not reach the upper bays of certain ATX cases, especially the high-end ones that tend to be bigger than your standard computer case. This placement therefore forces you to install your optical drives on the lower bays, making the front of your case look fairly ridiculous, though I suppose that depends on how sensitive you are to aesthetics. Another negative aspect of the IC7-G is its very loud North Bridge fan. However, ABIT is currently in the middle of shipping new motherboards with a bigger, quieter North Bridge HSF so this will not be a concern for users purchasing in the not so distant future.

ABIT IC7 ABIT IS7
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  • Anonymous User - Thursday, July 24, 2003 - link

    Could anyone clarify if the information for the sound system on the Abit IS7 is correct? The article lists it as being an Analog Devices AD1985. I thought it was Realtek?

    Thanks,
    Harry
  • Anonymous User - Wednesday, July 23, 2003 - link

    What a great article!
    We're waiting for the Part 2... :B
  • Evan Lieb - Monday, July 21, 2003 - link

    I bet that the Part 1 thread would be posted by a certain date, and it was indeed posted on that date. I never anything about Part 2, because I've been thinking of adding more benchmarks and data in general to round out any and all Pentium 4 motherboard testing until Prescott arrives.

    Anonymous User #4, you should always research your recollections if you can't exactly "recall" certain events correctly. ;)
  • Evan Lieb - Monday, July 21, 2003 - link

  • Anonymous User - Friday, July 18, 2003 - link

    As I recall, Evan made a bet on the part 2 being posted a while back.... the thread was mysteriously removed though.
  • Anonymous User - Wednesday, July 16, 2003 - link

    So, what month/year will part 2 be posted?
  • Anonymous User - Sunday, July 6, 2003 - link

    I read that the Epox 4pca3+ could do a 1,85 vcore with a bois update.. If anyone know where to find this bios update, please e-mail me zimen1@msn.com
    I really can't find it.
  • Anonymous User - Sunday, July 6, 2003 - link

    I also fried my MSI 875P Neo-FIS2R when I updated the BIOS from 1.2 to 1.4. I got a replacement board, but have been hesitant to try again based on my prior experience. Based on your experience with 1.5, (and now 1.6 is available), I'm willing to take another chance.

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