Question about Shuttle SN41G2V2 Barebone

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My shuttle wont boot

Please help. My shuttle wont boot after several tries. Fans only run at full speed but not boot my shuttle. Even the bios wont display on the screen. I tried removing each peripherals including the memory and the battery and placing them again but still nothing happens. I would really appreciate any suggestions. Thanks!!!

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  • bhadar Nov 24, 2008

    Hi, I have the same problem too. Fan spins, CD drive opens and a Orange LED comes on......





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If it's a new build, can you give details on processor etc. But if there is no bios, it's normally a memory incompatability problem, or the processor isn't active.

Posted on Jan 08, 2007


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Posted on Jan 02, 2017


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Optiplex 320 wont boot. Amber power light and fans running

power off 1st..then open ur cpu ..check ur ram ...and clean it....or mother board is not work replace near hardware shop....or check ur bios bettery or change it

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Shuttle SG41J1 Plus V2 won't POST

Hi Sam,
Don't ever get frustrated by a Shuttle, ahum, they're marvelous, but just "a little" strange behavior ... they are very sensible to the cell-battery; if the voltage drops below 1 volt... i have been ripping my hair out in the beginning of my Shuttle period... as said they just don't boot... get a multimeter, carefully get the cell battery (ya know, the little round zilver one on the motherboard, check the voltage and replace if V < 2V. If the cell battery has not taken out completely... we always take the cell bat. out to avoid discharging when keeping it in the box for a longer time.
So first check if there is one in at all...
!!! whatever you do inside your baby, get yourself grounded !!! a static voltage can destroy the little bagger...
--- Then you should check the jumper of bios reset. Could be it is in position "I" this should be changed to cover the "0", its very clearly described in the manual you can download @ <a href>
</a href>
download the manual and try to read it careful where the bios is described.
in 2nd stage it could be the memory, which is not inserted correctly, meaning not seated well. ( no offense, but it happened to me too... ;-)
Shuttles are different to handle...
- Also check, what speed the DDR stiks are... and also, if they are supported by the board.
- Check if you per error got some ECC mem stiks, they would not run. I remember going through such a case too...
as said, check if the compatibily book says if the mem-sticks you own are compatible.
- Then check if some wire is loose from the mobo to the disc, DVD evtl.
-- Check the wires from the front contacts to the mobo... maybe loose contact...
--- Last i would set the BIOS reset jumper to empty BIOS position , leave it there for approx a minute or 10... and if that does not help, check if maybe a addon VGA card inside is not well seated. or some other addoncard.

and lastly there can be some problems in the hdd itself, cables to discs, short-circuit on the underside of mobo or at the outerlast the thingy is broken and yore doomed to try to get your bucks back...
Hope i could be of any help mon ami
If not, just come back and write what happened, all volks here are glad to help,

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1 Answer

Screen not displaying. and fun starts and stops, remains stand by when restarted the fun runs and stops stand by.

hello there,

I got the same problem but it came gradually...

In fact for a full month when I first boot the computer, the fans runs, no extra beeps, the light blinked correctly but no bios at the screeen. I remarked also that the fans run full speed doing a lot of noise. Then I stopped the computer and wait 2 minutes and then it always works correclty at the second boot with the bios screen appearing. Also, the fan calm down after 1 second with less noise. So when I start the computer and hear that the fan calm down with less noise after 1 second, I know that the computer will boot correctly. That happens always at the second try after waiting 2 minutes. But since yesterday, the fans never calm down and the noise still remains high with no Bios at the screen. I'm suspecting the Power Supply...

i hope my i dea can help you.

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HP P4SD, its running good with 4 gb RAM, P4 3.0ghz, and a couple sata hd. The problem is the fan output voltage, i havent been able to read the output chassis and cpu cooler pins voltage cause i can find...

"i can find my dmm?" did you mean CAN'T?
"its clearly off", what is off?
the fans are 3 pins,2 are power, one is RPM tachometer.
"it all works fine", so you can boot and run any OS, ?

"the voltage reads +12vdc", where, at fan or PSU?
the fans run off 12vdc, they are DC motors (from outside fan)
if the fan runs slow at 12vdc the the fan is bad or is a low RPM
fan, as some are, bigger fans run slow, for less noise.!

first is the CPU fan it must run full speed, if not the CPU will overheat in seconds and ALL CPU shut them selves (by there selves) this way. so CPU fan is first. what does it do... there....?

then BIOS screens. GOT BIOS UP? and running? with, ESC key pressed>.
let me guess your symptoms
1: PC dead. will not boot.
2: BIOS dead.
3: all fans DEAD,.
4: power switch works and all PSU voltages read right, (seems not)/?
5: if the PSU power wire reads right(DMM), matching the side sticker voltages, and the CPU is dead, the MOBO is dead, or CPU is toasted.

here is a modern PSU, sticker.
see 5 to 10 power lines, see them. all must read correctly
if a fan is dead, then its dead if 12vdc is present on the fan power pins.


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After power on Fans are running but no Videosignal, no bios startup.

Could be 3 things Memory or CPU or Powersupply. are you getting any beeps if so how many, how long. try taking all the memory out and powering up see if it beeps if so try to put one stick of memory in at a time and see if it will boot. if you get no beeps with memory out check powersupply some PS's have a red switch on back for current input. switch back and fourth about 20 times uning a pen and set it to the right current for you location. put ram back in see if it will boot if not its trial and error of the PS and the CPU replacement and it still could be the RAM giving false readings. yea i know sounds like a ball of fun.

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1 Answer

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Confirm whether the RAM are plugged in properly. It could be the reason for the boot screen not moving beyond the BIOS boot up

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1 Answer


Replace and Change the BIOS on it. Go to the Center which you buy this shuttle and ask for a BIOS Chip which can help you to test on it if that BIOS chip have a problem of yours.
I usually if even in the BIOS won't boot up, i change it.

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1 Answer

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Teresa, if you changed the front side bus to 533, your memory must have the same clock speed. Memory clock speeds are what is known as "backwards compatible" but not forwards. This means that you could put a piece of memory of a clock speed of 400mhz into a system that runs at 333mhz and it will "downclock" the memory, but you could not put a piece of 333mhz memory in a 400mhz fsb pc and expect it to run. one of two things will happen, the system will not boot at all or the syetm will downclock the processor to a slower speed. In your case your cpu must be 533mhz clock speed with pc4200/533mhz memory to function correctly.

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