Video card gives no signal after each poweroff

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   Hello Community,

I have stumbled upon a weird problem. Not sure that it is related to the motherboard, but I try asking here nevertheless.

First of all, my hardware: Asrock B85M-HDS, i3 4160, Bequiet Straightpower E10 400W, Palit Jetstream GTX 670, 2x4GB of DDR3 1600MHz RAM.

The story is like this: My old video card, a GTX 560 Ti, started showing rubbish so I bought a "new" second-hand one, the GTX 670. However, it didn't send any signal. By some trial and error I figured out the following:

1. If I plug in my old video card (or any other video card), there is video output. More astonishingly, if afterwards I plug in the GTX 670, it also gives a signal.

2. If I take my PC from power (using the power supply switch), the GTX 670 fails to send a signal again. It won't send a signal until I plug in another video card and then plug back in the GTX 670.

3. A CMOS reset didn't help (jumper and also removing the battery).

4. It doesn't matter if the power is switched off while the card is plugged in or not. If I take the card out, switch off the power, switch back on the power and plug the card in again, it won't work until I plug in another card.

5. Taking the card out and plugging it back in without switching off the power (I know, one shouldn't do it but well...) doesn't lead to the problem. So only if the motherboard looses power the video card won't start.

Now I'm somewhat out of ideas why the new card needs a jump start and which component is the reason for it, the video card, the motherboard or the combination of both. Any ideas on how to solve this problem are highly appreciated!

Greetings,
Photon

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Photon Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 21 Jul 2019 Status: Offline Points: 6	Post Options Post Reply Quote Photon Report Post Thanks(0) Quote Reply Topic: Video card gives no signal after each poweroff Posted: 21 Jul 2019 at 6:11pm
	Hello Community, I have stumbled upon a weird problem. Not sure that it is related to the motherboard, but I try asking here nevertheless. First of all, my hardware: Asrock B85M-HDS, i3 4160, Bequiet Straightpower E10 400W, Palit Jetstream GTX 670, 2x4GB of DDR3 1600MHz RAM. The story is like this: My old video card, a GTX 560 Ti, started showing rubbish so I bought a "new" second-hand one, the GTX 670. However, it didn't send any signal. By some trial and error I figured out the following: 1. If I plug in my old video card (or any other video card), there is video output. More astonishingly, if afterwards I plug in the GTX 670, it also gives a signal. 2. If I take my PC from power (using the power supply switch), the GTX 670 fails to send a signal again. It won't send a signal until I plug in another video card and then plug back in the GTX 670. 3. A CMOS reset didn't help (jumper and also removing the battery). 4. It doesn't matter if the power is switched off while the card is plugged in or not. If I take the card out, switch off the power, switch back on the power and plug the card in again, it won't work until I plug in another card. 5. Taking the card out and plugging it back in without switching off the power (I know, one shouldn't do it but well...) doesn't lead to the problem. So only if the motherboard looses power the video card won't start. Now I'm somewhat out of ideas why the new card needs a jump start and which component is the reason for it, the video card, the motherboard or the combination of both. Any ideas on how to solve this problem are highly appreciated! Greetings, Photon

RLGL Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 29 Jul 2018 Location: MN Status: Offline Points: 2025	Post Options Post Reply Quote RLGL Report Post Thanks(0) Quote Reply Posted: 21 Jul 2019 at 10:33pm
	Does the "new" card wok in another system??
	Asrock Z370 Gaming K6,Intel i7 8700K, Asrock x570 Taichi

Photon Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 21 Jul 2019 Status: Offline Points: 6	Post Options Post Reply Quote Photon Report Post Thanks(0) Quote Reply Posted: 22 Jul 2019 at 1:38am
	Unfortunately, the only other system I have to test it in has a weaker PSU (Bequiet E8, has only one PCIe power connector). In principle I could exchange the PSUs and thus test the card on another mainboard but with the same PSU (Bequiet E10).

Photon Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 21 Jul 2019 Status: Offline Points: 6	Post Options Post Reply Quote Photon Report Post Thanks(0) Quote Reply Posted: 26 Jul 2019 at 1:54am
	Now I tested the video card with another machine and it makes no such problems there. On the other hand, other video cards also don't make such problems on my machine. Seems like a weird problem which only occurs if the B85M-HDS is combined with the GTX 670...

Photon Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 21 Jul 2019 Status: Offline Points: 6	Post Options Post Reply Quote Photon Report Post Thanks(0) Quote Reply Posted: 26 Jul 2019 at 3:21pm
	So I could solve the problem by updating the video card's VBIOS: https://forums.geforce.com/default/topic/1157078/geforce-700-600-series/-solved-gtx-670-gives-no-signal-after-each-poweroff/post/6123231/#6123231