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ASRock J4105B-ITX Intel Celeron Quad-Core Processor J4105 (up to 2.5 GHz) Mini ITX Motherboard/CPU Combo

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  • DDR4 2400/ 2133
  • Integrated Intel UHD Graphics 600: 12 EUs inside (Up to 750 MHz)
  • DX12, OpenGL 4.3, OGL ES 3.0, OpenCL 2.0
  • HW Acceleration Decode: HEVC (H.265) 8-bit, HEVC (H.265) 10-bit, H.264 @ Lvl5.2 (AVC), JPEG/MJPEG, VP8, VP9 8bit, VP9 10-bit
  • HW Acceleration Encode: HEVC (H.265) 8-bit, HEVC (H.265) 10-bit, H.264 @ Lvl5.2 (AVC), JPEG/MJPEG, VP8, VP9 8bit
  • Dual graphics output: support D-Sub and HDMI ports by independent display controllers
  • Supports HDMI with max. resolution up to 4K x 2K (4096x2160) @ 30Hz
  • Supports D-Sub with max. resolution up to 2048x1536 @ 60Hz
  • Supports Auto Lip Sync, xvYCC and HBR (High-bit Rate Audio) with HDMI Port (Compliant HDMI monitor is required)
  • Supports HDCP with HDMI Port
  • Supports Full HD 1080p Blu-ray (BD) playback with HDMI Port

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  • Specifications
  • Warranty & Returns
  • Reviews

Learn more about the ASRock J4105B-ITX

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 Newegg.com's Standard Return Policy.
Ownership: 1 week to 1 month
Verified Owner
5/ 5
pfsense board

Pros: Installed a single 4gb stick of ddr4, a used HP NC364T 4 port intel network card and an old surplus noname SSD. booted up off usb and installed pfsense 2.4.3 which recognized the HP/intel network card and the on-board realtek nic. Running QOS, pfblockerng and an openvpn server and have no issues. The board it overkill for what I need and the cpu rarely gets much off idle (8% tops for short periods when our 15mbit internet is maxed out and a bunch of different things streaming, usually much lower in the 1% to 3% area). 4gb Ram is also excessive topping out at about 10% usage with pfblockerng running a bunch of block lists. Board also as AES-NI which will be required with pfsense soon.

Cons: Not really an issue but it would be nice if the pcie slot was x4 instead of x2, regardless, nice that it is a x16 slot to allow the installation of the HP/intel x4 card. I'm not pushing near enough data for the x2 data limit to be an issue, probably never will the way broadband packages are priced around here! The onboard nic is a realtek which isn't ideal for freeBSD, but pfsense did recognize it fine. I haven't used it to see if its stable. but FreeBSD drivers for realtek have improved a lot in recent years so I doubt it will be an issue if someone was to use it. My old board used two separate realtek nics and ran just fine.

The biggest issue is that the mail in rebate is useless, they make it so its extremely hard to actually get. They require the paperwork within 10 days of the invoice date, so assuming it the board takes a few days to get to you, then a few days to test and make sure its all good, throw in a weekend or two, and your out of time and the rebate needs to be in their hands by then and you haven't even emailed it yet. Assuming the post will take 5-7 days to get back to them, your closer to 15-20 days if your on top of it. They make a provision for a postal stamp date instead of a received date, but that isn't clear (the documents contradict themselves) and who know if you actually get one when you put it in a mailbox.

Overall Review: Used this to replace an old i7-640u no-name motherboard that was running pfsense but died during a power outage. Accidentally ordered the j4005b first, props to newegg for allowing me to return the old board before I had even received it, great customer service there.

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Ownership: 1 month to 1 year
Verified Owner
5/ 5
Outstanding pfSense board

Pros: I purchased this board to serve as a low wattage replacement to my current pfSense box which was cobbled together from some pretty old parts gathering dust in the closet. I was using an old FM2 AMD A4-5300 dual core 65w APU, Biostar A85 ATX mobo, 8Gb (2GBx4 sticks) DDR3. That setup worked just fine, but for a simple firewall/OpenVPN/router it pulled too much wattage, poured too much heat into the office, took up too much real estate being full ATX, and always made a small amount of noise just because the APU and case required fans. After researching some early performance numbers, I figured surely Intel's new Gemini Lake platform would be a brilliant substitute to my frankenstein box that would solve all of those issues.

pfSense 2.4.3 (FreeBSD 11.1) installed to an SSD via USB and works perfectly supplying VPN service (AES crypto on chip), firewall, and transparent HTTP proxy to 7 hosts on the LAN. I added a 2-port Intel NIC (EXPI9402PT) which is a 4x PCIe lane card but it works just fine even though the ASRock product page specifically states that only 2 lanes are supplied to the x16 slot. No observable drop in performance or overall function.

This board absolutely stomps that old system in every respect. Much lower power draw at 10 watts on CPU vs the former 65 watts plus whatever the A85 chipset and 4 sticks of 1.5v DDR3 RAM draws, negligible heat introduced into the room, a genuine 0dB noise production since there is literally not a single moving part or fan in the whole system, and teeny tiny ITX form factor and case compared to the last full ATX system in a Fractal Define R4 case. Plus, the J4105 objectively outperforms the old APU in every way that I have the means to measure.

Thermals are pretty amazing as well. Intel ARK lists the J4105's TjMax as 105C but I couldn't get it even close. In a tiny Cooler Master Elite 110 ITX cube case with no fans at all (including power supply) Prime95 small FFT only got it to 74C on 2 cores with a 21C ambient after 2 hours. In its current pfSense config I stressed it as much as it ever will be by saturating my 100Mbit residential internet connection with a several dozen torrents on 3 different LAN clients over OpenVPN with stronger than average encryption to work that CPU as much as possible. Worst I saw was 21% CPU usage and 41C on a single core with a 21C ambient. Again, this is with absolutely no ventilation and in a very small ITX case. Under these conditions you could hammer this board as hard as you want 24/7 with no ventilation and be completely fine, barring any extreme circumstances that I can't account for.

Cons: I understand that the J4105 supplies 6 PCIe lanes according to Intel. I also understand that this board has a full x16 *length* PCIe slot but only 2 lanes are supplied to it according to ASRock. I understand that this is not an unusual practice and I assume the point is to allow an x16 card to fit on the board but only operate at x2 lane bandwidth? Maybe some of those PCIe lanes are dedicated to SATA, or USB, onboard LAN or other? Is this a result of how ASRock allocated the PCIe lanes on their board, or is it a Gemini Lake limitation? I scoured the interwebs for data on PCIe allocation for this board and came up with nothing so either I didn't look hard enough, or there isn't any published data.

Regardless of who's to blame, I would have loved to see at least 8 lanes fully available to the x16 slot, but isn't the lack of PCIe lanes just a classic "Intel in a nutshell" thing for the last few years? I could be completely wrong, but in my defense I could find literally no data anywhere explaining if this is a Gemini Lake or an ASRock limitation regarding this board specifically. If anyone knows for sure please put it in your review to educate us all.

I took the system out of its tiny case so I could test functionality of some other GPUs with this board. In BIOS you have the option to default to the onboard GPU or a PCIe GPU, just like nearly every other motherboard on the market, so you'd think that means you could throw a spare GPU in here if you needed it, right? I tried 2 different PCIe GPUs just to see what would happen. The first was an EVGA GT710 8x, and the second was an EVGA GTX980 x16. The system would power on but not boot with either GPU, even if the appropriate drivers were pre-loaded to the OS. Is this another problem caused by only having 2 available PCIe lanes? I wouldn't think so considering if you look around on youtube you'll find videos of people taking x16 GPUs and literally taping off the contacts to limit them down to x2 or x1 lanes for s**ts and giggles, so we know that GPUs tend to work fine on limited lanes. I can't tell you what the problem is here, but don't expect PCIe GPUs to work at all, at least from my experience. Maybe someone will figure it out in the future or a new BIOS will fix it. There are x2 and x4 lane GPUs out there but I don't have one to test, and frankly I doubt most folks do either. If you get it to work please say so in your review.

Overall Review: Before I put the assembled system on permanent pfSense duty, I put Windows 10 x64 on it to play around with it and see what it's capable of.

While I was waiting for my dual port NIC to arrive I took the opportunity to test its viability as an HTPC. I tested playback of multiple grades of video files of an SSD with the onboard GPU, Win10x64, CCCP 1.7.8.162 (default settings), and latest drivers/BIOS:
MP4 1: 720p 24fps, h264, 8bit, FLAC, Stylized soft subs 24% peak CPU, perfect playback
MKV 2: 1080p 30fps, HEVC, 10bit, AAC, Stylized soft subs 37% peak CPU, perfect playback
MKV 3: 1080p 60fps, HEVC, 10bit, FLAC 44% peak CPU, perfect playback
MP4 4: 4K 24fps, h264, 8bit, DTS-HD 100% peak CPU, studdering, unwatchable
MKV 5: 4K 30fps, HEVC, 10bit, FLAC 100% peak CPU, studdering, unwatchable
MKV 6: 4K 60fps, HEVC, 10bit, AAC 100% peak CPU, studdering, unwatchable

So no, this is not in the least bit capable of 4K media, but to be fair, it isn't advertised as supporting 4K media playback, only 4K DISPLAYS (refer to the ASRock product page). It's great for up to 1080p60/HEVC/FLAC, or basically any BD. Sorry, I haven't tested 1440p. I have not tested any gaming performance either as it's not really relevant to me.

I regret that I do not have the tools to measure power draw from the wall outlet like a Kill-A-Watt meter. I would have loved to offer some data about absolute power draw and compare my old and new systems. Maybe I'll update the review if I come across a Kill-A-Watt soon.

6 out of 6 people found this review helpful. Did you?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Works

Pros: Fast for the price
HDMI & VGA options
USB 3.0
Small Form factor
PCIe Slot
Two Fan Connectors

Cons: 8 GB Ram limit, but that is on Intel.

Overall Review: Using this as a PFSense build.

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