October 8th, 2008

Computer Mobo Scroungeup

Computer motherboard scroungeup

Recently i received 2 computer motherboards and one broken laptop. So i started doing the best thing for them 🙂 , taking them apart. First came the notebook, which was quite difficult to take apart, lots of screws in lots of small corners, pieces screwed together from both sides, etc.

But after a couple of hours i was left with a 15,4″ WXGA lcd panel, one 512 MB ram dimm(i used this to upgrade a friends laptop), a laptop keyboard, a laptop battery, a laptop cd-rom, a wifi lan board, and lots of different chips taken from the motherboard. In fact i will post a list with all the parts at the end of the article, because i have an idea 🙂

Next came the two computer motherboards, i took those apart too and saved allot of interesting chips.

And now the idea: since i now have a bunch of parts i want to give’em to someone so it can make something interesting out of it. I also want to give that person a PCB from BKRtech. So take a look at the list and if something looks interesting and you have an idea let me know, I’ll send you the parts and the PCB.

the list..

  • LF-H80P – 1:1 ethernet transformer
  • TEA5767 – single chip FM radio (1 x TEA5767 sent to Andreas Nilsson in Sweeden, there is 1 left)
  • RTM660 – 109R Realtek soundcard
  • ALC655 – six channel AC’97 audio codec
  • CMI9738 – four channel AC’97 audio codec
  • RTL8100CL – single-chip fast ethernet controller with power management
  • W83627HF-AW – Winbond I/O familly chip
  • W49V002FAP – Winbond 256k x 8 cmos flash memory with fwh interface
  • Samsung 610 K9K8G08U0M – 1G x 8 Bit / 2G x 8 Bit NAND Flash Memory – Samsung semiconductor
  • Samsung 616 K9WAG08U1A – 1G x 8 Bit / 2G x 8 Bit NAND Flash Memory – Samsung semiconductor
  • SST39VF04 – 5124K x 8 CMOS Multi-Purpose Flash
  • ATJ2085W – single-chip for flash-based digital music player
  • ATJ2085H – single-chip for flash-based digital music player
  • APL1087 – 800mA Low Dropout Fast Response Positive Adjustable Regulator and Fixed 1.8V, 2.5V and 3.3V
  • GD75232 – multiple RS232 drivers and receivers – Texas Instruments
  • TPS2210A – PC Card Power-Interface Switch w/ Reset For Serial PCMCIA Controller – Texas Instruments
  • TPS5130 – triple synchronous buck controller with nmos ldo controller – Texas Instruments
  • MAX1909E – Multichemistry Battery Charger with Automatic System Power Selector
  • ISL6559CR – Multi-Phase PWM Controller
  • 7407 – Hex Buffers/Drivers With Open-Collector High-Voltage Outputs – Texas Instruments
  • IRF3704S – SMPS MOSFET – International Rectifier
  • F3711S – HEXFET Power MOSFET – International Rectifier
  • CEB6030L – N-Channel Logic Level Enhancement Mode Field Effect Transistor – Chino-Excel Technology
  • FDD8896 – 30V N-Channel PowerTrench® MOSFET – Fairchild semiconductor
  • FDD8880 – N-Channel PowerTrench® MOSFET 30V, 58A, 9mO – – Fairchild semiconductor
  • 20N03L – Power MOSFET – ON Semiconductor
  • PMBS3904 – equivalent 2N3904 NPN Epitaxial Silicon Transistor
  • LM324M – Low Power Quad Operational Amplifiers – National Semiconductor
  • ISL6227CA – Dual Mobile-Friendly PWM Controller with DDR Option – Intersil Corporation
  • G1421 – 2W Stereo Audio Amplifier with No Headphone Coupling Capacitor Function – Global Mixed-mode Technology Inc
  • G792 – probably fan controller – Global Mixed-mode Technology Inc
  • 74LVC08A – quadruple 2-input positive-and gates
  • 74AHCT125 – quadruple bus buffer gates with 3-state outputs
  • 74AHCT08D – quadruple 2-input positive-and gates
  • AO4407L – P-Channel Enhancement Mode Field Effect Transistor – Alpha & Omega Semiconductors
  • AO4800BL – Dual N-Channel Enhancement Mode Field Effect Transistor – Alpha & Omega Semiconductors
  • ISL6207CB – High Voltage Synchronous Rectified Buck MOSFET Driver – Intersil Corporation
  • LVC14A – Hex inverting Schmitt-trigger with 5V tolerant input – NXP Semiconductors
  • 74LCX00 – Low Voltage Quad 2-Input NAND Gate with 5V Tolerant Inputs
  • APL5331 – 3A Bus Termination Regulator – Anpec Electronics Coropration
  • 4431B – P-Channel 30-V (D-S) MOSFET – Vishay Siliconix
  • 2951 – adjustable micropower voltage regulators – National Semiconductor
  • RT9173 – 1.5A/3A Bus Termination Regulator – Richtek Technology Corporation
  • AT93C46 – 3-Wire Serial EEPROMs – ATMEL Corporation
  • 4422 – N-Channel Enhancement Mode Field Effect Transistor – Alpha & Omega Semiconductors
  • 74HCT14 – hex schmitt-trigger inverters – Texas Instruments
  • 74F32D – quadruple 2-input positive-or gates – Texas Instruments
  • CV137PAG – Programmable FlexPC Clock for AMD K8 Processor ATI RS480 – Integrated Device Technology
  • 10 KOhm thermistor
  • SMD inductors – 15uH, 4,7uH, 6,8uH, 3,3uH
  • SMD crystal oscillators and connectors

MSI usually not very well known for innovations in the Motherboard area of the market has come up with a design that i think it will sure influence other Motherboard manufacturers in the future. Because the race to more efficient and green electronics has started its just a matter of time until all motherboards will use solutions like this one. Talking about the MSI’s Stirling Engine its simple, the CPU drives its own fan. MSI’s Air Power Cooler uses the energy inherent in the expansion of air as it warms up to drive a fan. As the CPU gets hot, it causes air in a piston to expand. That pushes out the piston rod, which turns the fan rotor, pulling air over a heatpipe-fed heatsink. The heatsing helps cool the piston, so the air inside becomes more dense, pulling the piston rod back to its original position.

MSI’s Stirling Engine-based cooler (powereless) in theory

The mechanism is well known and documented as the Stirling Engine and its named after its creator, Scottish engineer Robert Stirling, who described it in 1816, though the principles on which his machine were based were uncovered in the 17th Century.

MSI’s Stirling Engine-based cooler (powereless) in practice on a motherboard

MSI’s version can transfer over 70 per cent of the heat power to motive power, the company claimed, and it doesn’t use a drop of electricity to drive the fan. It’s not totally efficient, which is why it won’t run in perpetuity, but it is kicked into motion simply by the heat generated by the chip.

MSI has built the powerless cooler and placed it on a motherboard, which it’ll demo at the CeBIT show in Hanover, next week.

Ok I made a mistake, but people do make mistakes, now I’m going to tell you why I think you shouldn’t buy this motherboard. This is a cheap mb, about 85 $, its true there are cases when cheap motherboards turn to be good, this was not the case. The first impression a small box, few accessories (1 x SATA cable, 1 x IDE cable, 1 x FDD and the back panel).After I assembled all together ( the MB , Athlon 64 4400 dual core , 320 gb Western Digital SATA hard disk and 1 x 1 gb DDR2 800 Mhz) I started installing the os , everything ok.

M2N-E SLI socket Am2 motherboard

After the firs reboot I noticed the first problem, long boot time it wanted to install the OS from my boot cd, and the first problem appeared; although the bios settings were on Defaults when I tried to boot from cd it said something about “no disk installed” I had to do some research and found out that it was a problem caused by a setting in BIOS so I made the change from HDD acces mode “Auto” to “Large” and finally the Os setup started. The next problem didn’t take long to appear, on first reboot I noticed a long boot time about 2,5 mins, as a new generation computer I expected it to boot faster.

After that I had some problems with the drivers from Asus cd, I don’t remember exactly but some of the drivers had to be installed manually. And to say something about the motherboards performance the overall performance was categorized by me as slow, not a good impression. I have to say I did liked one of the motherboard features very much the ASUS Q-Connector which lets you connect really easy the USB and audio ports from the case to the motherboard. After a few days’ of testing because all of this happened I went back to the store and returned the MB in exchange for another motherboard which I will review later.

Here’s some of the Asus M2N-E SLI features that made me buy it:

  • Support AMD Socket AM2 CPU
  • NVIDIA nForce 500 SLI Technology
  • Dual channel DDR2 800
  • ASUS Q-Connector
  • NVIDIA SLI™ Technology
  • Fanless Design
  • Gigbit LAN

You can see the full specifications list at Asus M2N-E SLI website

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