|"Tags:Ecs (elitegroup computers) K7s6a "|
If that's the subject system's mboard, it was first released over NINE years ago.
No video at all is always caused by a hardware problem when you have a mboard that old.
I'm assuming that the system was working fine previously, and that you DID NOT change which ram was installed just before this first happened.
There is probably absolutely nothing wrong with ram that worked fine previously in the same mboard, but if you install ram that is not compatible with your mboard, the mboard may NOT boot normally, and it may not even produce an error beep.
E.g. your mboard was not meant to have DDR 400 mhz / PC3200 ram installed in it. The PC3200 spec itself is backwards compatible, but there are other things that determine whether a DDR 400 mhz module would work properly at 200, 266, or max 333 mhz in your mboard.
Your mboard also cannot use ECC DDR ram
If you're not sure about whether the ram is compatible.......
It is easy to test for incompatible ram that has caused your mboard to fail to boot.
Make sure you have a speaker or speakers or the equivalent connected to the mboard so you can hear mboard beeps (see your mboard manual if you need to).
Remove the AC power to the case/power supply.
Remove all the ram.
Restore AC power.
Try to boot.
If nothing else is wrong, you will get no video but you will hear a pattern of beeps that indicate no ram is installed, or a ram problem.
E.g. for an Award bios or a bios based on one, that's often a beep of about a half second, silence for a half second, a beep of about a half second, silence for a half second, continuously.
It does not have onboard video, so you can only connect a monitor to a video card installed in a mboard slot - either an AGP video card, or a PCI video card.
The video card must be all the way down in it's slot. AGP video cards are particularly easily damaged when they're not all the way down in the slot when the computer is running.
You could try connecting your monitor to a different computer, but there's probably nothing wrong with it.
Some mboards develop this problem - electrolytic capacitors were installed on them that were not properly made, and they fail eventually - the mboard manufacturer didn't know they were improperly made at the time the mboard was made.
Open up your case and examine the mboard to see if you have bad capacitors, and/or other findable signs of mboard damage .
What to look for, mboard symptoms, example pictures:
Home page that site
- what the problem is caused by
- he says there are STILL bad capacitors on more recent mboards.
Pictures of blown capacitors, other components, power supplies, fried Athlon cpus, etc.:
Failing power supplies are common and can cause your symptoms.
Check your PS.
They often partially work, fans and hard drives may spin, leds may come on, yet you may get no video and the mboard will not boot all the way.
See response 4 in this:
If you can borrow a power supply from another working computer, try connecting that.
If it is failing, you can usually replace it with any decent quality standard sized standard ATX PS with the same capacity or greater.
Standard (PS/2) power supply size - 86mm high, 150mm wide, 140mm deep, or 3 3/8" h x 5 7/8" w x 5 1/2" d , or very close to that, though the depth can be more or less for some PSs.
Don't buy an el-cheapo (in quality) PS.
See response 3 in this:
ECS K7S6A (home support page)
Manual date - 2003/3/28
Socket 462 (Socket A)
100 / 133 mhz FSB
DDR ram, unbuffered.
Max 512 mb per slot
3 ram slots
Max two DDR 333 mhz modules, or three DDR 266 mhz or DDR 200 mhz modules
SiS745 main chipset
4X AGP slot (supports 2X or 4X)
(It will run a 2X card, or a 4X card if it can physically plug into the slot, or an 8X AGP card at 4X if the card will physically plug into the slot [a card that has an older video chipset that supports 2X / 4X / 8X], however the power supply must have enough wattage capacity to support a system with the particular video chipset on the card. )
No onboard video
The fan on the CPU heat sink must spin when the computer is running.
If it isn't spinning, or if it spins too slowly, the CPU could have been damaged on a mboard this old.
The mboard has 3 pin fan headers, but CPU fans back then could have either three wires or two. If it's got two wires, then the CPU can't be protected from burning out by the mboard shutting off when no rpm is detected from the CPU fan header. .
If it isn't spinning, try to move the fan blade when the computer is not running with something slim. If it's difficult to move, it probably can no longer spin normally.
If it's easy to move, try removing it and connecting it to another computer to see if it spins.