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About the flashing prob on Dual GHz

post #1 of 40
Thread Starter 
I've read somewhere about some kind of "flashing" problem on the dual.

Please, can you describe in details the problem found on the dual 1 GHz ? What is it exactly, and how universal is it ?

I'm thinking about getting a dual soon, so I'm interested to hear more on this potential problem for me.

Thanks.

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post #2 of 40
It's happening on all QuickSilver 2002 machines I've seen with GeForce4 MX.

Just ever few hours or so, I see the screen flash for a millisecond with diagonal lines at the bottom of the screen or sometimes the whole screen.
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post #3 of 40
I have what I thought was the same problem, but I don't have the lines you are talking about.

This is on my G4 800 with the Radeon 7500 - every once in a while (less than once a day) the screen brightness "flashes" darker, lighter, then back to normal. Takes all of about 2 seconds. It's not dramatic or anything, but noticeable.

Odd.

[ 02-25-2002: Message edited by: murbot ]</p>
post #4 of 40
My iBook does the same thing.
post #5 of 40
Thread Starter 
Maybe the flashing problem has something to do with the LCD screen itself ? There are some fluorescent tubes inside LCD screens. You often see fluorescent tubes flashing in real life. Could the ones used in the LCD do the same ?

Anyone has the same problem with CRT ? This could rule out the fluorescent tube phenomenon.

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post #6 of 40
murbot, your problem is probably different, I believe. This only lasts for a millisecond, and you can usuallly clearly see diagonal lines. It affects LCDs and CRTs the same way.

I haven't see any Radeon 7500 / QS 2002 800 MHz owners in the discussions thread at Apple.com.
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post #7 of 40
there's no tube in an lcd
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post #8 of 40
Kali -

You seem to be racking your brain about what PM to get. You will be happy with any of them, they are all great machines, just different speeds.
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post #9 of 40
Bodhi, Is that an old kormac quote I see? lol
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post #10 of 40
[quote]Originally posted by onlooker:
<strong>Bodhi, Is that an old kormac quote I see? lol</strong><hr></blockquote>

KimKapSol.
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post #11 of 40
I have the exact same thing as Eugene described. I think it is definitely a problem with the GF4 MX card. Eugene, have you contacted Apple yet about this? If so what is the response they are giving? I am probably about to call Apple and see if I can get through.
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post #12 of 40
[quote]Originally posted by Anders:
<strong>

KimKapSol.</strong><hr></blockquote>

Bingo!

I have the Dual GHz but w/ the Radeon card and I am not experiencing any problems.
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post #13 of 40
TigerWoods99, I called last week. Make sure you tell them about the large thread on Apple's Discussion Boards. Make sure you get a case number.
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post #14 of 40
Thread Starter 
Damn ! This problem is annoying me a bit. I may suspand (or delaying) my purchase just because of this !

It's let me wondering again about the damn video card.

Is this flashing problem affecting the GeF4 MX card only ? Or all the NVidia cards ?

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post #15 of 40
Eugene, what did they say they were gonna do? I'm going to call tomorrow. Hopefully I get through.

Kali, quit suspending your purchase and just buy one! Just get the Radeon 7500 & upgrade later. This problem is only effecting those with the GF4 MX I believe. It isn't like HUGE and the machine is great otherwise. Don't let this stop you from not buying a computer for another year.
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post #16 of 40
Well I just called Apple. I told him the case # and mentioned the large discussion on Apple's support page. Initially he thought I had the 17" Studio Display but I pointed out I didn't. The only thing he told me I could do was take it to a store and have the video card replaced, but that isn't much help. If it's the GF4 MX that is causing this problem then what good would it do to have another one put in? I want a different card and a store isn't going to replace it with a different card, only the one that was in there in the first place. Plus I'd end up not having my computer for weeks. So basically I don't know what to do. Are the Radeon 8500 in stores yet? Maybe I could complain and demand they give me one (after all we have spent a lot of money at the store). I doubt they'd do that though. I do have a potential buyer for the card so I could just sell him the card after I get a GF4 Ti or Radeon 8500. This is not a huge problem but I really expect this machine to be perfect after all the other problems we've had in the past with Apple.
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post #17 of 40
Thread Starter 
[quote]Originally posted by TigerWoods99:
<strong>Well I just called Apple. I told him ....
but I really expect this machine to be perfect after all the other problems we've had in the past with Apple.</strong><hr></blockquote>

I totally agree with you Tiger. That's exactly why I'm still waiting a bit again, before buying, just to look around and see. I'm really pissed off with this video card (ok, I'll admit I don't know much about it <img src="graemlins/embarrassed.gif" border="0" alt="[Embarrassed]" /> )

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post #18 of 40
Only X game I have right now is 4x4 Evo 2 (waiting/praying/hoping that my copy of Links 2002 Championship Edition ships soon) and playing it at 1024 x 766, 85 Hzhigh detail and everything it runs really smooth and looks great.
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post #19 of 40
It'd better run well on that machine

I would love to play RtCW on a dual GHz using a fat pipe

&lt;drool&gt;

[ 02-27-2002: Message edited by: MajorMatt ]</p>
post #20 of 40
It's the GF4MX card, and on any LCD, but for some reason it seems only in OSX. It's the card because of the 100+ people on the apple board with the prob, one of them had 3 montiors (all lcds) hooked up to 3 cards and only the monitor hooked up to the MX had the flash.

I'm hoping for a discounted upgrade to the GF4 Ti.
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post #21 of 40
It's not just LCDs that have this problem. I have a ViewSonic 17" CRT monitor and I have the diagonal lines with the GF4 MX. THey should give me a ****in Ti 4600 for BTO price.
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post #22 of 40
Thread Starter 
All these are annoying me as hell.

I don't want a crippled video card in my Mac. I can't have the Titanium at educational price, so I'll be stuck with the MX for a while. Yeah, I can afford the machine anyway and wait to see a Mac Titanium in stores. But this is taking me the shit out. Damn!

Tigerwood, what about the noise of the dual ? Do you hear some hiss ?

Is the dual noisy ? How loud is it compared to the other Mac you had ?
(Ok, this isn't the thread subject so you can reply to me in private. gabrielle_kali@hotmail.com)

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post #23 of 40
Kali, yes it is fairly loud, but that's after using it a long time. Right now I can't hear it that much. I don't think I ever hear a hiss with it.

[ 02-28-2002: Message edited by: TigerWoods99 ]</p>
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post #24 of 40
Before my Dual GHz I had an 867. That thing was the loudest computer I have ever heard. Annoyed the hell out of me. The Dual GHz is surprisingly quiet compared to the 867, I am very happy with it.
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post #25 of 40
I don't know about that. The computers at my skool are loud as f*ck. And the monitors give me a headache....I was on one and just couldn't stand it so I had to get off.
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post #26 of 40
I have a Dual gig with Sony 21" trinitron, and yeah I get the flicker thing, but damn its not that big a deal really. People in here talkin like the monitor blows up or something. I don't plan on keepin this crappy MX and I never intended too. Apple should replace them with 7500's though. But this machine is sweet and to think I almost bought a dual 800 for $500 more a couple weeks earlier. The Ti's will be out soon, lets hope they don't have the same problem.
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post #27 of 40
It's pretty minor I agree, but it's actually gotten worse and more annoying. I'd have little ones in the corner or wherever before and now I have them across the whole screen. It's just that they shouldn't have this problem & Apple should offer us some kind of compensation. I'd be willing to pay BTO $250 extra so I can replace it with a GF4 Ti from Apple, however they won't be available for another couple weeks. I will probably just get a Gainward or Asus or Visiontek Ti 4400 or 4600 and sell the GF4 MX to someone I know. He said he'll buy it & probably for at least $150.
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post #28 of 40
Thread Starter 
[quote]Originally posted by TigerWoods99:
<strong>It's pretty minor I agree, but it's actually gotten worse and more annoying. I'd have little ones in the corner or wherever before and now I have them across the whole screen..</strong><hr></blockquote>

I predict that it will become more and more of a problem, until the card fries the LCD monitor. A guy had this recently. So, nope, I wont buy that product.

Ok, I'm a pessimist. But nature always make it worst.

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post #29 of 40
I don't have an LCD.

I am wondering which option I should go with. Maybe I can complain to Apple and they will give me a GF4 Ti 4600.
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post #30 of 40
The problem on mine is getting worse. Starting today there had been two or three times that the screen suddenly went blank for a second or two! :eek:

Just signed up the ATI Radeon 8500 trade up program. The card should be avail in a few days

Also. My Dual Athlon also has had a GeForce 4MX card installed for a few days to replace the GF 2MX card. Guess what? Same flashing problem!!!!!!!!

I just pulled it out and will return it tomorrow. And I will get a PC version of 8500 for it.

ATI all the way. nVidia, no way.

[ 05-09-2002: Message edited by: Leonis ]</p>
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post #31 of 40
I too have seen 'the flash.' I don't know if it is a serious enough problem for me to trade up to the 8500, but I know that promotion runs out in a couple of weeks.

One question, does the 8500 have an ADC connection?
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post #32 of 40
8500 Mac Edition does not have ADC; you would have to use the Apple ADC-DVI connector at $150 or a similar product from another manufacturer. It does, however, have dual-head VGA and DVI support.

Check out xlr8yourmac.com by the way if you're thinking about trying to flash PC versions of the 8500 to work on the Macintosh; you'll think again after reading the horror stories from people who have tried.

Still trying to decide whether to get an 8500 myself (Mac Edition, of course) or sell everything and go for one of the new PowerBooks and clear off some space on my desk.
post #33 of 40
[quote]Originally posted by Kali:
<strong>All these are annoying me as hell.

I don't want a crippled video card in my Mac. I can't have the Titanium at educational price, so I'll be stuck with the MX for a while. Yeah, I can afford the machine anyway and wait to see a Mac Titanium in stores. But this is taking me the shit out. Damn!

Tigerwood, what about the noise of the dual ? Do you hear some hiss ?

Is the dual noisy ? How loud is it compared to the other Mac you had ?
(Ok, this isn't the thread subject so you can reply to me in private. gabrielle_kali@hotmail.com)</strong><hr></blockquote>

<img src="graemlins/oyvey.gif" border="0" alt="[No]" />

it's not a 'crippled' card, every few hours the screen flashes for a milisecond...
post #34 of 40
I have the same problem on my 933 G4 with the GeForce 4 MX. It's really not that big of a deal. Every few hours, for a milli-second, a row of diagnol lines that take up about 1/4th of my screen (17" ASD) flash. No big deal at all. I've never noticed it showing up while playing games though (Alice and The Sims). The only complaint I have about the whole package is that it only comes with 256 MB of SDRAM. Hardly enought to run OS X. For $2,300 I think that Apple should put in a stick of 512 MB instead... <img src="graemlins/oyvey.gif" border="0" alt="[No]" />
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post #35 of 40
Have all of you contacted AppleCare about this? The more calls the better since Apple still hasn't provided a fix for us.
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post #36 of 40
Onlooker, what do you mean there is no tube inside an LCD? How does the backlight work then?

There is definately a tube in my PowerBook cos I've had it to bits. Are you saying the studio displays use something else?

Socrates

[ 05-15-2002: Message edited by: Socrates ]</p>
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post #37 of 40
I just got off the phone with Apple's Education Support and they told me that Apple is aware of the problem and that they're working on a firmware update that should remedy the problem. If they don't have it out soon, there may be an exchange program they would run. I was surprised I would be told about the possible exchange program unless they were closer to that to fix the problem than they were for the firmware update.

For it's worth...
post #38 of 40
Kali, I thought we agree you should get a PS2 or an x-box or both -- they've just been lowered to 199USD.

You're not likely to get the kind of game performance you want from a Powermac. At least not in the forseeable future. Not that it isn't adequate or that you could really notice the fps differences, but when you look at the framerates your PC playing friends get from their machines, you will feel jealous.
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post #39 of 40
Am I missing something here, I got a apple update with new Nvdia drivers for the Geforce 4 MX, I updated and have not had the problem since. Why did I get an update and noone else got it? Check Apples download area because mine is fixed. I will look to see if I kept the updater. If I have it I will post a link for it.
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post #40 of 40
The nVidia Driver Update 3.0 has nothing to do with the problem or fix, if that's what' you're referring to. That's only a fix for dual-monitor support in OS 9 with the addition of a Matrox card.
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