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Intel Motherboards > 
Biostar > 
Item#: N82E16813138142

BIOSTAR G31D-M7 LGA 775 Intel G31 Micro ATX Intel Motherboard

  • Intel G31
  • Core 2 Duo/Pentium Dual-Core/Celeron Dual-Core/Celeron 400 Series Processor
  • DDR2 800
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Learn more about the Biostar G31D-M7

Quick Info


  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years

Customer Reviews of the Biostar G31D-M7

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2 out of 5 eggsBlown capacitor

Pros: Many years of reliable service

Cons: After many years of reliable use, this motherboard died recently. It has one capacitor that is slightly bulging (no oozing). I swapped it out with an older MSI board with the same chipset and I'm back in business

Other Thoughts: First experience with Biostar, will definitely consider again

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  • Joshua F.
  • 5/21/2013 3:54:58 PM
  • Tech Level: High
  • Ownership: less than 1 day
  • Verified Owner

5 out of 5 eggsCan't get any better for 40 bucks

Pros: Overclockable, compatible with most cpu's

Cons: One pci port, no pc fan port. One IDE port.

Other Thoughts: Works fast, so problems so far. Best 40 bucks ever spent.

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  • ana m.
  • 8/22/2012 11:21:00 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsGreat for basic needs

Pros: -Has everything you'll ever need for a basic build

Cons: -Lacking Fan headers

Other Thoughts: Today (2012) an 1155 board would be a better choice. This is the only BIOSTAR board (out of about, 5 so far) that is STILL working.

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  • CravinVapes
  • 4/24/2011 6:39:04 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsscraps to online

Pros: Great board. Bought as a way to use a pentium d I just had sitting around. What an easy setup. The cost was right in the ballpark with $30 in instant savings. $30 for a board that works, and works well. Couldn't do any better than that!!!!

Cons: Not any at all

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  • David K.
  • 4/11/2011 8:01:13 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsWorks

Pros: Works right out of the box. Pretty good for the price. Installation was very easy and the manual was very nice and to the point.

Cons: Board is very small, only 1 PCI expansion slot along with the PCI-E slot...output panel cover in back was a bit annoying as the sound slots had thin metal covers over them so I had to take out the motherboard again and remove them.
OC features kinda limited, but expected.

Other Thoughts: Not bad at all for a budget build.

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  • Honore H.
  • 3/21/2011 12:09:24 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

3 out of 5 eggsDoesn't support SSD properly.

Pros: Good for replacing an old board.

Power-On by keyboard works great!

Has all the basics for an HTPC (except AHCI support, see cons)

Cons: It has an ICH7 south bridge which wasn't original supported (ICH9 was the 3x series). AHCI is not supported on this chip and won't run SSD properly. Mine gets so slow at times it is way slower than my HDD. Luckily my SSD has Garbage Collection when forces a TRIM command every so often, but not often enough.

Needs more memory settings to make high speed memory to work properly.

I knocked off two points for lack of AHCI support as it should be standard now that SSDs are becoming inexpensive. This is not the fault of the manufacturer as Intel released this design.

Other Thoughts: Beware of all newer socket 775 motherboards as they are using these older south bridge chips and don't support AHCI modes. If you don't use SSDs, then this board will work great. The only problem I had was with high end memory.

The BIOS only allows the basic 4 timeings (i.e. 5-5-5-15) and won't allow you to set tRFC which is very important for even command ratr (CR). Just buy the generic single sided 1.8 volts with no heat sinks on the memory and you should be fine. any others will be hit or miss if they will work.

If you are planning to use SSD make sure you check that the board supports AHCI before you buy it. or else you'll have terrible speeds.

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

  • Matthew H.
  • 3/13/2011 4:25:09 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsNo frills, great bang for the buck.

Pros: Tiny board size, some will say it's a Con but I see It as a Pro, This isn't a fullsize board, and it doesn't pretend to be but if you want small then this board about as tiny as they come before you get into ITX size.


Easy bio updates via embedded flash program (hit 12 on boot) can update from USB flash drives, This is a handy feature.

LPT header

Surprising number of bios options (including a few for OC'ing) for a board in this price/class..

The board actually O.C's extremely well for what it is I was shocked, G31's are'nt known for OC'ing nor would you expect much given the economy class this board is.
I was able to OC a E2200 (2.2ghz) to 2.9ghz with only a modest 5% voltage bump, I think it would have went higher but did'nt want to push the voltage.

Incredible P.O.S.T speed, One of the fastest booting boards I've ever seen.

Did I mention tiny? if you need a small board that can still handle a 16x PCI-E graphics card.. this is it!

Cons: 65watt CPU limit, most quads are 95w

Tiny heatsinks, north seems to be "okay" little warm but ok.
Southbridge heatsink is little more then a thin square piece of aluminum.
It would be more accurate to call it a heat SPREADER then a HEATSINK.

Southbridge gets to hot to touch after just 5 mins of power on, Make sure you have a case fan blowing in on it or mount a small fan to keep it cool.

Crippled by design for cost savings.
ICH7 supports 8 USB and 4 SATA, But Biostar only placed 4 usb on the back + 2 via internal header, leaving 2 usb ports unaccounted.
2 sata ports despite the ICH7 supporting 4, Biostar apparently intentionally left 2 of the ports out.. cost savings?

G31 IGP has DVI,VGA, TV-out, But Biostar only included VGA.

No rs232 port, Ironicly it's present in the hardware, will be detected by windows but it's not physically accessible, the board lacks a header for it.

They did grace the board with a LPT header, but you have to supply the port your self.

Other Thoughts: It appears the (TE) model of this board has a rs-232 header, 3rd & 4th sata ports, the 7th & 8th usb ports (via internal header)
it can also handle 95w CPU's unlike this one that can only handle 65's :(

Some folks said they had problems with the board not locking the PCI-E Bus to 100mhz
Personally I had zero problems in that area and it handled locking the PCI & PCI-E bus to 33/100 perfectly, which is also impressive
since a lot of budget boards CAN'T successfully do that.

Although the board has it's share of drawbacks, I got more then I paid for and It's boot speed impressed me.
Likewise although it's bios is considered Limited compared to more expensive boards Im pleased with the options,
It also O.C's much better then I expected.. I was really impressed with how well it handled OC'ing.

If you need a budget board, or a tiny board.. or a tiny budget board.. look no further.
Despite it's Costcutting design this little board delivers a lot of bang for your buck, 5 egg's

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  • Trevor W.
  • 3/10/2011 6:27:12 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggs

Pros: Good price. Easy install. Great basic board.

Cons: Not much in BIOS tweaking.

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  • Sungyeol S.
  • 2/10/2011 5:37:17 AM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggsHeat!

Pros: Cheap and small board good for slim desktop

Cons: 1. All the other parts (Power supply, CPU, HD, ODD) became much hotter than with old MB

2. It does not support USB boot, which was frustrating when I tried USB Window 7 install.

Other Thoughts: YGWYPF

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  • David W.
  • 1/16/2011 11:48:44 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggsGood board

Pros: Economically priced,gets the job done.

Cons: Could have an extra fan header,otherwise it's just a basic board and it has enough features to build a decent pc.

Other Thoughts: I have bough maybe a dozen of these boards from biostar or something similar,and have not had any issues.This board is compatible with almost any 775 cpu.I used it the last time with a pentium d 3.0 and it worked perfect,even though it isn't on the compatability list from the manufacturer.No pentium d's or pentium 4's are on the list but I am willing to bet it will run pentium 4's too,along with all the newer dual and quad core cpu's for 775.

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

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Item#: N82E16813138142
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