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Third mobo with no post!!!

S

SpotDancer

Senior member
I just received a Tyan Tiger mobo, and put two t'bird 1 ghz chips in it. Loaded up all the memory slots with ECC registered ram (4x256), a 420W AMD ps, and a Gainward GF2-Pro 450 Golden Sample.

I powered it up out of the case...........the two cpu fans worked along with the fan on the vid card, but it did not post. Nothing on the monitor. This is the 3rd time this has happened to me.

I replaced the vid card with a GeForce 2 MX card from another working computer.......still no post. I put in an old Riva TNT card that also was working when I replaced it.........still no post.

Could it be that the Gainward card is bad, and the other two cards dont work on this mobo because they are AGP 1x, and the board is 2x, 4x?

I cannot believe that this has happened again. Every mobo I got had the same problem. It seems that the problem has to be something other than the mobo.

Any ideas anyone?
 
Have you tried removing the board from your case, placing it on the static bag it came in, and using just the cpu, heatsink, video card, and memory to post? The boards could be shorting out on something in the case. Are your cables installed backwards? I once got a board to post just by changing the jumpers on a friend's hardrive.
 
Typically, when a mobo won't post, it's because of a memory or CPU problem. Make sure that the CPU and memory are known to be good as well as being supported by the board. Try them in other machines individually, if possible. Did you have a good amount of cooling on the CPUs when you started it up? If not, AMDs will fry quickly without adequate cooling.

David
 


<< Typically, when a mobo won't post, it's because of a memory or CPU problem. Make sure that the CPU and memory are known to be good as well as being supported by the board. Try them in other machines individually, if possible. Did you have a good amount of cooling on the CPUs when you started it up? If not, AMDs will fry quickly without adequate cooling.

David >>



All the components were new, out of the box. I was under the impression that if the board powered up, and the cpu fans worked that that was an indication that the cpu's were ok along with the memory.............yes/no?
 
Is it possible to use two T'birds on a multiprocessor board? I thought that you had to use either the Palomino 1.2 or the Athlon MP processors.
 


<< TextIs it possible to use two T'birds on a multiprocessor board? I thought that you had to use either the Palomino 1.2 or the Athlon MP processors. >>

😱
i think he {DarinM} is correct
 
classic tbirds will work, but they are not MP optimized. so you are getting power (the fans spin) but no POST. did you try clearing the CMOS (unplug the power cord, the ATX cord, and the battery, and short the CMOS jumper for a good 10 sec)? try fewer memory sticks? just one processor?
 
Hello there, Yoda.............

Thanks for the input.......I did try some of the things you mentioned, but not necessarily as you spelled out. I will try each suggestion individually, and will let you know what develops.

Thanks!
 


<< classic tbirds will work, but they are not MP optimized. so you are getting power (the fans spin) but no POST. did you try clearing the CMOS (unplug the power cord, the ATX cord, and the battery, and short the CMOS jumper for a good 10 sec)? try fewer memory sticks? just one processor? >>

I'm inclined to agree especially on the memory and you did not say what OS and any other details of this config....start off with one stick work up from there.... this is interesting also

<< However, the P/S must be able to supply a minimum of 30A on the 5-volt line. Many 300+ watt power supplies on the market today are capable of this output. >>

and this also. especially the upto 3 minutes ECC initialization process and did not see where(did not look too hard ..a date in 20 minutes...😀 ) regular Socket A processors R or Rnot supported.
 
No OS installed.........I am doing this setup out of the case with a minimum setup...........2 CPU's with hsf, vid card, 1 - 4 sticks of ECC registered memory (256 meg), and a 420W AMD ps.

I removed all the sticks of memory but one.......tried it, the board powered up.........removed that stick, and tried each of the other three sticks the same way........all worked. I then put in two sticks in different dimm sockets.........they all worked no matter how I configured them. In between each switching, I reset the bios.

I shut the system down, and REMOVED all of the memory and the video card - then, just for fun powered up the board. The two CPU fans started up. I let this run overnight, and in the morning it was still running. Both heatsinks were warm. The bottom of the mobo was also warm. I would suspect that this must mean that the T'bird CPU's were both recognized and running, yes?

I was under the impression that the mobo would not power up without memory and/or a vid card installed. If this is the case, why did this mobo power up without them?

Just for the record, I am sure that I had the board running for at least three minutes on more than one occasion, and it still would not post.

Further suggestions, anyone?
 
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