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ASUS M4A78 Plus AM3/AM2+/AM2 AMD 770 ATX AMD Motherboard

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Marketplace Seller
  • AMD 770
  • Phenom II / Athlon X4 / Athlon X3 / Athlon X2 / Phenom X4 / Phenom X3 / Athlon / Sempron
  • DDR2 1066*/800/667 * Due to AMD CPU limitation, DDR2 1066 is supported by AM2+/AM3 CPU for one DIMM per channel only.

  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

Boasting the new AMD AM3 socket, the Asus M4A78 allows you to elevate your rig beyond the standard limits with support for the next-generation 45nm AMD Phenom II processors. The board is able to reach memory speeds up to 1066 MHz for blazing fast memory access for today’s latest applications and games. A pair of PCI-Express 2.0 x16 cards can be mounted for cutting-edge graphic power with support for CrossFireX.

Besides the 2 PCI-Express 2.0 x16 lanes for the CrossFireX video, there is also a PCI-Express x1 and 3 PCI slots providing the flexibility for further system enhancements. Storage won't be a problem with 1-PATA connector plus 5-SATA connectors. Asus Turbo Key transforms the PC power button into a physical overclocking button. After easy setup, Turbo Key can boost performance anytime you like, without interrupting on-going work or games.

With current trends leaning towards green tech and energy savings, this board adopts the brand new 8+1 phase VRM power design to deliver improved energy efficiency, dramatically lower system temperature, and enhanced stability for overclocking. Furthermore, the Asus exclusive EPU (Energy Processing Unit) technology provides total power system efficiency by detecting current loadings and intelligently moderating power in real-time, helping save power and money.

  • newegg Socket AM3 Processor Support Based on the AMD 770 chipset, the Asus M4A78 Plus supports the latest-generation AMD Socket AM3 processors including the AMD Phenom II X3 and AMD Phenom II X4 processor, as well as AM2 and AM2+ processors including the AMD Phenom, AMD Athlon and AMD Sempron series.
  • newegg ATi CrossFireX Multi-GPU Technology Support ATi CrossFireX is the ultimate multi-GPU performance gaming platform, enabling two or more discrete graphics processors to work together for boosted system performance and a breakthrough gaming experience.
  • newegg SATA II with RAID Support The second generation SATA interface delivers up to 300MB/sec transfer speed, doubling that of the first generation Serial ATA. The on-board five SATA II ports support RAID 0, 1, 10 and JBOD for better performance, enhanced data security, and flexible capacity upgrades.
  • newegg Gigabit Ethernet Connectivity The Asus M4A78 Plus features a fast Gigabit network interface for high-speed LAN connections at up to 1000Mb/s data transfer rates with advanced security features to ward off malicious attacks. Gigabit LAN is ideal for supercharged seamless streaming of Internet audio and video content.
  • newegg Asus EZ Flash 2 With Asus EZ Flash 2, simply press the pre-defined hotkey to launch this tool and update BIOS from a USB flash disk before entering the OS. You can update your BIOS only in a few clicks without preparing an additional floppy diskette or using an OS-based flash utility.
  • newegg Power Efficiency Asus exclusive EPU (Energy Processing Unit) technology digitally monitors the CPU power and intelligently scales power up and down according to the work load for extreme energy efficiency.

Learn more about the ASUS M4A78 Plus

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years
  • Read full details
  • Return Policies
    • Return for refund within: 30 days
    • Return for replacement within: 30 days
  • This item is covered by's Standard Return Policy.
Verified Owner
5/ 5
Has lasted way longer than I thought it would 12/22/2017 11:07:54 PM

Pros: Has more than enough USB ports.
Has IDE support for hard drive, CD drive, and floppy drive.
Easy to setup/configure.

Cons: None really. Would maybe be nice to be able to unlock the 2 other cores on my AMD Phenom II X2, but I wasn't expecting it to.

Overall Review: I purchased this in 2009 and honestly didn't really think I'd still be running it in 2017. It's been in 3 different cases, had different hard drives (IDE and SATA) and video cards installed, have had Windows XP, Vista, 7, and even 10 (which it currently has) installed, and have upgraded the RAM, and I've had zero problems with it and it's been on almost 24/7 and has been my gaming and audio/video editing machine, so I've pushed it quite a bit. It'll be a sad day when I finally end up replacing it with a more modern board from 2017/18.p

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Ownership: more than 1 year
Verified Owner
5/ 5
Member since 2009 4/16/2014 9:46:57 AM

Pros: Have had this board running games and VMware machines and have never had a problem for the past 5 years.
-Games run smooth still. Have updated everything from video cards, hd-SSD, and sound card and still have had no problems

Cons: None what-so-ever

Overall Review: Pretty sweet and solid board, still chuggin along after 5 years of solid use.

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Ownership: more than 1 year
Verified Owner
5/ 5
Awesome Mobo 2/8/2014 12:21:25 AM

Pros: I have had this Mobo since 2009 and I am still using it to this day This mobo has been through hell and back and is still going strong

Cons: To this day it still refuses to do my house cleaning

Overall Review: N/A

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Ownership: more than 1 year
Verified Owner
4/ 5
I like it 11/8/2013 7:54:14 AM

Pros: Basically plug and play. Wish it supported more RAM

Cons: Driver disc doesn't include Win7 drivers. Need to download these. Some of the mobo apps seemed to have trouble with WinXP-x64

Overall Review: A solid board. The rear connectors didn't line up well with my case, but I don't know if that's the mobo or the case.

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Ownership: more than 1 year
Verified Owner
5/ 5
Epic 10/23/2013 3:18:28 PM

Pros: I bought this board in 2009 with the intention of using it in my gaming computer. 4 years later, this board still runs like a champ!! Not a single issue!

The most impressive part has been running pretty much as a server board for almost 2 years now....I'm talking running 24-7.....

Cons: Runs like a champ

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Ownership: more than 1 year
Verified Owner
5/ 5
Like a rock ! 3/8/2013 12:56:27 AM

Pros: TO THIS DATE it has been running steady, NO problems at all.

It is in my wife's worstation rig. She is a graphic artist, Quadro FX 4600 card.


Cons: No cons. One of the best boards I ever used.

Overall Review: They don't make em like this anymore.

Did you find this review helpful?
Ownership: more than 1 year
Verified Owner
5/ 5
Very Satisfied 7/13/2011 2:32:10 PM

Pros: Plenty of USB slots, Sata Ports, Works Fast, love the 4 DDR2 Slots and the number of extra PCI slots it has.

Cons: just no video, and whatever you do. DO NOT UPDATE THE BIOS!

Overall Review: When I updated the BIOS downloaded from the asus website, things got very bad and at some point I couldnt get into bios and the CD that comes with it says the BIOS is too old for that motherboard...But I called ASUS and they did not hesitate to give me a replacement and that replacement came in fast! So I'm really satisfied with this product and ASUS.

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Ownership: more than 1 year
Verified Owner
5/ 5
Perfect mobo 3/5/2011 7:18:15 PM

Pros: I have owned this Mobo for more than a year now and i can tell you this Mobo runs flawless. Great investment on my part. I love this mobo.

Cons: I wish i would had waited for a mobo with usb 3.0.

Overall Review: If your see this used and are wondering weather to buy this , buy it. Everything you would ever want in a mobo.

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