Hey,

By searching for this problem I came to your forums and have seen some informative posts on this, but none of it has solved my problem, so I'm starting a new thread.

This whole problem started about 2 months ago when suddenly my comp stopped giving a monitor signal. First I thought it was the monitor but tested it on another comp and it worked fine. Then I tested the graphics card, works fine. Checked the ram, also works fine. I then figured it must've been the motherboard gone bad as the cpu was relatively new...so I got a new motherboard (ASUS A7V600-X)(no onboard video) and still had the problem. I then looked at the cpu(AMD Athlon XP 1700+) and it didn't look too good so I bought an Athlon XP 2000+ to replace it and I still have the same problem. I've tried different video cards(working) on my motherboard and no difference. I have no idea what it could be, I was thinking maybe a short somewhere but I uninstalled the whole damn thing and put it back together with no avail. I cleared the cmos but that didn't help. The cpu fan + graphics card fan turn on, but the chassis fan doesn't anymore, but even when I disconnect the chassis fan it doesn't change anything. The motherboard and cpu as said are brand new and everything was installed cautiously. Right now I've only got the graphics card & motherboard connected and still the problem so it has to be around there but I ran out of ideas. Some helpful info would be greatly appreciated, thanks in advance!

*edit: also, I checked the powersupply and it works and even replaced it with another one but same problem & before this happened I always ran my comp with open case since my graphics card fan had a habit of coming lose :s

Uhm, after all that i'm stumped, try using another monitor, perhaps theres a problem somewhere along the line with that, a lose connection somewhere, i know you said you tried it but it's worth giving it a shot with another one.

Yep I've tried it with 2 different good monitors and still have the same problem. It also doesn't give any beeping codes & all hardware seems to startup fine.

did you connect the hdds cabled to the IDE ports correctly onb the mobo?? Remember pin 1 is red or a solid color! that will cause a blank screen sometimes, but im guessing that its just a USER error, as usual!

I dont know what VC you are using , but I had a similar problem a while ago, using a kt400 Soyo mobo and a ti4200 viceo card.
I would have to wiggle it just a certain way if I wanted to get a signal, just improper connection in the AGP slot I guess. If I shut it off I can't get it to signal when I boot unless I jiggle just a certain weird way.
Kind of the same thing is happening to my X800 on my LanParty.

Thanks for the quick replies guys! I don't have the HDD connected cause I heard its not relevant to getting a monitor signal. I've plugged in the video card tightly and tried different video cards on the monitor and another working monitor. I don't think its the AGP slot, I thought it might have been the monitor cable since the pins were a bit crooked but when I hooked up another monitor(with good cable) it didn't work, also tried hooking up the other monitor to another working video card.

*edit: I'm using a geforce 4 ti 4600 btw & have tried it with 2 other newer geforce cards, forgot which ones exactly.

I found out on older motherboards, if your IDE cables are backwards it will not post. If you checked out two different monitors, then it's your Video card, IDE cables, CPU, ram, etc...

EDIT: If you tried it with two different Video cards, then it's not the problem.

Quote: Originally Posted by turbopsi I found out on older motherboards, if your IDE cables are backwards it will not post. If you checked out two different monitors, then it's your Video card, IDE cables, CPU, ram, etc... EDIT: If you tried it with two different Video cards, then it's not the problem.

Yeah, it can't be the video card. I checked the ram on two different computer earlier today (2x 256mb DDR 2700) and they worked fine. It has to be either the motherboard or cpu I figure but they are both brand new..and since I've had this problem before I got these new parts I think it might be something else. If it comes down to it i'll try the cpu out in another computer but before doing that I just wanted to check if there's anything else it could be.

edit: So I do need to have the IDE cables connected for it to boot? It's a relatively new motherboard, produced in 2003. Either way I had the IDE cables connected earlier today and it didn't change anything but I'll double check and connect them again.

I would definatly try it man. That is the point of troubleshooting.

hmm after re-reading the first post and noting this"ASUS A7V600-X" i can tell yah right now, thats what it is!

make sure that the jumpers are set correctly, other wise you are just frying away money, and good CPU's

Quote: Originally Posted by stereomod hmm after re-reading the first post and noting this"ASUS A7V600-X" i can tell yah right now, thats what it is! make sure that the jumpers are set correctly, other wise you are just frying away money, and good CPU's

Jumpers are set correctly and the motherboard is brand new so that can't be the problem unless its defect. Is it possible for a defect graphics card to destroy the mobo or cpu? Cause only thing I can think of now is that one of the video cards I tested the new mobo with (1st test) was the video card that was on my other mobo before this issue started. I was quite sure that I tested the vc on another comp but not 100% sure anymore and my roomates don't want me to fry their mobo's now :p. So I'm gonna have it tested somewhere I think. Thks for all the input

Its not that uncommon to get a defective motherboard - I have had a couple recently out of about 25 computers.........1 was an MSI and the other was an ASUS. I would suspect the motherboard after swapping all those parts around.

do you get any beebs if so look up your beep signal on google that will help and trie reseating your ram if it aint down right it will not post


and man with all the parts you got you might want to build a new computer may be a nice mod

He already said no beep codes.


Welcome to PR, Snout, great first post. Sounds like you've got the whole troubleshooting procedure down, which is a good thing

When did this start happening? Has the 4600 _ever_ worked in this board?

My Radeon 9500 hosed 4 different motherboards before it was replaced. Basically all the fans would power up, but no boot, no post, no video.

To test your motherboard, try this: Remove your AGP card and power the board on. You should get a 1-3 beep code indicating video failure. If you do, then it's likely both your CPU and motherboard are OK, but to make sure, install the AGP card again, but this time remove all the RAM. You should now get a 1-3 beep code, indicating RAM failure. (beep codes vary by BIOS manufacturer, so check your manual to see which beep codes to expect) If you do, you can start looking elsewhere. I would start with the power supply.

If you DON'T get these beep codes, then your motherboard should be replaced under DOA. If the replacement motherboard does the same thing, then look into replacing the 4600.

Lets start there...post your results, even if they're successful.

Thanks for the welcome and extra input guys. I thought about the video card toasting the new motherboard so I had it tested and the motherboard was fine, but to be on the safe side I left my old video card on the side and waited to get my hands on someone else's working ASUS ti 4600 card. I now have that card installed on the working motherboard + another working XP 2000+ chip and working ram. I even got a new case that I installed it all in and it still doesn't work. I opened up my original powersupply with which I tested this (had some leakage it seemed but it worked fine on another comp) so I replaced it with another 350watt power supply that was mint on the inside. That didn't change anything though, and basically I'm left at having all new/working parts (new cpu/motherboard/case, working ram/vcard & power supply) and still have the same problem. I tested it on different monitors again but never get a signal. Also, before I installed all these new parts I went and tested my old motherboard again and that board gave me long consecutive beeps with no signal. So I figure that motherboard is toasted and was probably the initial problem but I don't see how I can still have this problem with all new/working parts installed.

Installed right now:

ti 4600 (asus) video card
Athlon 2000+ xp cpu
350 watt no name PS
ASUS A7V600-X motherboard
512mb ram

One thing I'm still gonna try is to clear the cmos again with all these new parts installed but I'm not sure if that's gonna do any good.

Wow! It sounds like you've tried evreything. You must have a gremlin. Seriously, it sounds like there is some simple explanation for your problem, since you've swapped evrey single part out. I would suggest taking a break, have a ****tail (or a coke, if your not of age) and give the thing some time. That always helps when I get stumped. Sometimes, when you come back, the damn thing will just work.

Yeah this is definitely the weirdest problem I've ever had. I decided to go visit my parents and took my rig along with me. I thought it may still be a power supply issue as the mint one I tested it with was only 300watt and my old 320watt. It should have been enough but I went ahead and tested it with a 350watt brand new intel ps here and it didn't help. Now I'm thinking it might be the ram, that its not functioning properly on this motherboard in one way or another. I tested them on other comps and they worked fine but neither had my motherboard. It's PC2700 333mhz ddr ram(samsung) which in general should be ok on this motherboard ASUS A7V600-X. Anyone ever have a problem with good & compatible ram not working on your mobo?

Well just to give an update, I fixed the issue over christmas. I replaced the motherboard and got a new graphics card and the comp finally has a monitor signal now. Turned out the graphics card was screwed up (waste of a ti4600) and the motherboard that I bought new and had let professionally tested a couple weeks earlier didn't seem to comply to my system. The new motherboard had an nvidia chip(got the A7N8X-X board to be specific) and a gf 5700FX 256mb card and that fixed it. However, I do have another problem now, running demanding programs or just games, the comp keeps crashing due to memory errors or other .sys file crashes. I will post about this later in the appropriate forum. also thanks to all of you that helped me out here!