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Item#: N82E16813131336

ASUS P5Q-EM LGA 775 Intel G45 HDMI Micro ATX Intel Motherboard

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  • Intel G45
  • Core 2 Quad / Core 2 Extreme / Core 2 Duo
  • DDR2 1066(O.C)/800

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

Get great performance with Asus's P5Q-EM motherboard. Powered by Intel's G45 chipset, it supports Core 2 Quad, Extreme, dual-core and Pentium processors. You can add up to 16GB of DDR2 800 memory to support the operating system. The Micro ITX form factor makes it a great choice for HTPCs.

The motherboard is designed to support the advanced features that today's power users are looking for. It has an 8-channel audio system with an optical S/PDIF port and 6 analog audio ports that support Intel High Definition Audio. It also has 6 USB, 1 FireWire and a Gigabit Ethernet port. The GMA X4500HD processor has both DVI and HDMI outputs.

File sizes are getting larger, especially for audio and video, so we need more secure ways to manage our data. There are 6xSATA ports, so you can hook up plenty of drives. Since you have plenty of available connectors you can use one drive for the OS and software and have extra drives for data. Or you can set up a RAID 0, 1, 5, or 10 array.

  • newegg Intel G45 Express Chipset for Intel LGA 775 CPU Based on the Intel G45 Express chipset, the Asus P5Q-EM supports Intel LGA 775 (Socket T) processors including the Core 2 Extreme, Core 2 Quad, Core 2 Duo and Pentium D series as well as the next generation Intel 45nm processors.
  • newegg Integrated Intel GMA X4500HD Graphics Core The onboard Intel Graphics Media Accelerator X4500HD (GMA X4500HD) graphics core is powered by Intel's innovative hybrid graphics architecture and Clear Video Technology for incredible 3D realism and home theater entertainment to meet the needs of today and tomorrow.
  • newegg HDMI Output The Asus P5Q-EM features an HDMI output for connection to your high-definition video equipment. With the HDMI interface ensuring lossless transmission of high-quality HD video signals, play back HD contents on your computer and view them on your large HDTV set for more comfort.
  • newegg Q-Connector The Asus Q-Connector allows single-step connection and disconnection of chassis front panel cables with one complete module. This unique adapter ensures quick and accurate connections without the trouble of plugging cables in separately.
  • 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 S/PDIF Out Featuring coaxial and optical S/PDIF-out (SONY-PHILIPS Digital Interface) jack for digital audio output, the Asus P5Q-EM motherboard provides convenient connectivity to external home theater audio systems while keeping the best signal quality without converting to the analog format.

Learn more about the ASUS P5Q-EM

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years
  • Read full details

Customer Reviews of the ASUS P5Q-EM

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  • Brady S.
  • 11/3/2009 8:44:43 AM
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsWorks Good!

Pros: Replaced a working EVGA motherboard with this one in my Windows 7 Media Center to get more PCIe slots for capture cards. Nice SATA raid on board. Haven't had any issues yet!

Cons: None

1 out of 1 people found this review helpful. Did you? Yes No

  • Marti S.
  • 11/2/2009 11:26:08 AM
  • Ownership: less than 1 day

2 out of 5 eggsGood board, bad placement of sata ports

Pros: The board is decent, everything worked the way it's supposed to, documentation was good, supported everything I needed it to

Cons: 4 of the 6 sata ports are completely blocked by my GTX260 GPU and now I'm forced to buy a sata raid card to support more harddrives. I probably should just return the Mobo, but I'm too lazy and don't want to be without a computer...

1 out of 3 people found this review helpful. Did you? Yes No

  • Mike F.
  • 10/29/2009 6:08:50 AM
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsFirst Time Builder -- No Problems Here

Pros: Feature-rich and versatile board. On-board surround sound, ethernet, and video. Great for the home theater crowd, but appropriate for those looking to get modest gaming out of a uATX system. I love this thing in my Mini p180.

Cons: Many features stand to be wasted depending on your system configuration - I have HDMI ports I can't use because I installed a video card, which is kind of silly.

Other Thoughts: It seems most of the complaints here revolve around compatibility with graphics cards, and I haven't had any such problems. I bought this board to build a modest Win 7 system with the ability to play games (I rarely play anything released since Portal), and I haven't had any problem with the Sapphire 4770 I installed. This is my first build from scratch, and it went off without a hitch. Certainly none of the nightmares described in these reviews, and I have no particular expertise that allowed me to sidestep problems.

It is a shame that the onboard video outs are disabled by my video card, but that's how the chipset works, and it was my choice. I wanted a board that was versatile, and could be inexpensively repurposed later if I chose to upgrade this one down the line. Are there better choices for a dedicated gaming rig? Of course... but this one has provided a nice foundation for my current build, and I have no regrets.

2 out of 2 people found this review helpful. Did you? Yes No

  • Chad Z.
  • 10/28/2009 5:27:28 AM
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggs

Pros: Works as advertised right out of the box. Installed RAID-1 HDD's, the included RAID software is very easy to understand and use. The computer was built for a non tech savvy secretary, so easy is better.

Cons: None

Other Thoughts: This isn't necessarily a MB issue, but the Intel Core2-Quad OEM heatsink/fan bracket was a little difficult to snap into the board. It looked like I was warping the board as I tried snapping the second connection point to the board. It looked bad enough that I removed the board to install the heatsink. The computer has been running fine for a few months now, so it did not harm the MB. I later looked at a few older boards/processors and all of them (that mount through the board) were warped from the pressure of the heatsink against the processor socket. I had never noticed this before, so don't worry too much unless you hear something crack while installing the heatsink!

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  • JAMES K.
  • 10/23/2009 2:32:47 PM
  • Ownership: 1 day to 1 week
  • Verified Owner

2 out of 5 eggsDefective board

Pros: Lot of features if it worked

Cons: 1st one did not post, Tech diagnosed as defective ram module, RMA'd it. After a week of waiting receive a new one but this one did post but very unstable. Updated my bio but still same problem persists. After multiple OS install, I gave up

Manufacturer Response:

Dear Valued Customer,

We are sorry for this inconvenience. Please contact our Technical Support Department at so that we may get more details about your system configuration and assist you in resolving these issues you are experiencing.

Best Regards,

ASUS Support Team

Did you find this review helpful? Yes No

  • Robert T.
  • 10/14/2009 11:40:54 AM
  • Ownership: 1 month to 1 year

2 out of 5 eggsNot good if you need the PCI-x16 slot

Pros: The board has already died and is going in for RMA. Seemed to work OK when it was working.

Cons: If you use the PCI-x16 slot the second video head STOPS working. This is true of ANY ASUS small form factor motherboard. I just got this from Tech support after being hung up on 2 times for just asking the question. ASUS used to be the best board out there. NOW? I dont think so.

Other Thoughts: Small form factor boards are great but heat is evil in these little cases so keep cables out of the way to allow for people air flow.

Manufacturer Response:

Dear Valued Customer,

We are sorry for this inconvenience. Please let us know if we can assist in the RMA process by contacting us at and reference case number "NE536617".

Best Regards,

ASUS Support Team

0 out of 1 people found this review helpful. Did you? Yes No

  • James D.
  • 10/9/2009 1:34:55 PM
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggsCorrupt RS-232

Pros: Not DOA (it gets the extra egg for this). Unable to use long enough to form any other positive opinions.

Cons: RS-232 produces corrupt communications. When attempting to talk to our equipment, characters typed were echoing back as completely different characters, if at all. Reproduced problem on 2 separate identical systems. All other systems not using this board, including one system in which the board was the only difference, communicate perfectly.

Did you find this review helpful? Yes No

  • Ulf E.
  • 10/4/2009 10:51:23 AM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsReliable MB for Media Center

Pros: I have been running this Board for over a year now. It started out pretty shaky. It would not go to sleep properly or wake up. It had issues with Overclocking the RAM. It erased its own BIOS but did recover.
Some of these items I would chalk up to the software, express Gate, AISuite, EPU-4, ProbeII.
A Lot of the issues were corrected in the first few months with updated revisions.
Now I have say it is a reliable (24x7), feature rich, compact MB.
I recently removed all the ASUS software (not drivers), its just runs better without it.
If you noticed my specs you will see I am using an ASUS Graphics card, which does support audio over HDMI. It shuts down the onboard one but it has worked flawlessly, I was concerned at first as other posts commented on this board not working well with additional Graphics cards, just use the same manufacturer and its usually fine.
I new I would have to wait a while for this MB"s kinks to be ironed out. It took 3 Months and all was well.

Cons: The MB does run a little HOT, I have it running at around 46 C, It has cooled down since I first got it, it used to run at 54 C +(No physical changes since).
The SATA Ports are inline with the 16x PCI-E slot, the interfere with Graphics Cards. I am unable to use 2 of the SATA ports because of this.
I can't use the Express gate because I run a RAID 0 on 2 150GB Raptors.
ASUS Update Site, they keep changing the names of the components. Latest example; "Intel(R) Matrix Storage Manager Driver" is now "Intel Raid driver (WHQL)" and they move items around to different categories.

Other Thoughts: Some advice to ASUS, go check out how Dell does the Drivers and Download support page. Quit mixing up your updates.
My System Specs
CPU: Intel Core 2 Duo E8500 Wolfdale 3.16GHz LGA 775 65W Dual-Core
CPU Cooler: ASUS V72 92mm Sleeve CPU Cooler (I wish they still made these)
RAM: OCZ Reaper HPC 4GB (2 x 2GB) OCZ2RPR10664GK
Graphics: ASUS EN9600GT silent/HTDI/512M GeForce 9600 GT 512MB.
CASE: Thermaltake LANBOX Lite VF6000BWS
PS: Thermaltake Toughpower W0128RU 650W ATX12V
OS: MS Windows Vista 64bit Enterprise.
I have never contacted their support but I doubt it is any better than others. I have worked in the IT Services industry for decades and have to say they're all about the same, lack understanding, but its because their not there. They also have to deal with the uneducated simpletons who have no business building their own system.
When you buy the newest stuff be aware your testing it, be patient with the manufacturers and should be satisfied in the long run.

1 out of 1 people found this review helpful. Did you? Yes No

  • Matthew M.
  • 9/20/2009 5:55:50 AM
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggs

Pros: Excellent board. Easily runs other OS such as Solaris, OpenSolaris and Linux.
Very fast and reasonable stable.

Cons: Seems to have some issues with XP service pack 3.
The board gets very hot when running Windows especially if you play a game.
When the CPU hits 120F the system sometimes bluescreens, but this seems to be relegated to just 32bit XP.

Other Thoughts: Avoid the "DO" implementation of this board if you plan on using any OS other than MS Windows. The two are not the same board.

2 out of 3 people found this review helpful. Did you? Yes No

  • 9/5/2009 12:36:17 PM
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggs

Pros: Put two of these into customers' machines now, Vista x64 has issues loading onto the hardware (install takes longer than other boards, seems to hang, but just let it do its thing and it'll eventually come through) ... but once it's up and running, no issues whatsoever. Asus makes a good product. Mated with Intel E8400 and 4GB of RAM.

Cons: .

0 out of 1 people found this review helpful. Did you? Yes No

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Item#: N82E16813131336
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