RAM Incompatibility Fix for Asus C90s?

Don't hit me if this has been posted already.

I think I may have fixed this problem, the real one being that if your memory wasn't compatible with the C90s, you wouldn't be able to unplug your AC adapter and move around without being tethered to the wall. I think I may have found the solution on accident.

All you have to do is go into Sleep mode, unplug your AC adapter, come back, and then you're right as rain. The issue before was that you couldn't come back from a dead boot, as it would stop dead on the Windows startup screen (where they show Vista loading with the bars moving back and forth). I found this out as I noticed my computer shutting off, and I remembered I had forgot to plug it into the wall.

Once again, if this has already been posted, then ignore this, but I felt that I should let people know since it was my biggest problem.

 

Hey Ridley,

Nice find! I just put my C90S into sleep mode, unplugged the AC adapter, and I'm still able to connect to the internet! This looks like it's a temporary fix for us suffering from this annoying problem.

Now if only Asus would release a proper bios fix I'd be really happy. Again, Nice find!

Hmmm... maybe I spoke to soon. It appears that doing this tricks my C90S into thinking it's still in AC mode.... The CPU is not downclocking at all and the LCD has not dimmed. Very weird.

 

What BIOS are you guys running? Use Turbo Gear to go from Standard to Power Savings to down clock and lower the LCD brightness.

 

Ziggo0,

Using Turbo Gear, or unplugging the AC adapter without doing Ridley's trick, causes the Intel 4965 WiFi card and my SysTray to stop working. It's a common problem for a lot of us with the C90S. From what I've gathered it's a Bios problem and I, along with many other people, are anxiously awaiting a fix from Asus.

 

I have the latest BIOS and stock video driver, if that helps anything.

@ NightWalker - That's plenty strange. My monitor dimmed when I returned from Sleep mode. Try seeing if you just need to restart off the computer, then try Sleep mode again. I have it set where you just hit the Power button to do it.

@ ziggo0 - For me, when I try that, it locks up the computer entirely and nothing happens. I waited five minutes to see if it would start moving again, but nothing happened.

 

Ahh...well damn. I went with the Intel 3945 so I've never experienced that. Latest BIOS update....alright, what set of RAM are you guys running? I almost feel like making a chart of in/compatibilities :]

BIOS: 801
CPU: e6600
RAM: 2x1gb Super Talent DDR2 667
WiFi: Intel Pro 3945 A/B/G

Both AC and Battery run flawlessly for me with the configuration above.

 

Mine:

BIOS: 801
CPU: E6700
RAM: 3GB (1X2GB, 1GB) Corsair DDR2 667
WiFi: Intel 4965 Wireless N

 

BIOS: 801
CPU: E6700
RAM: 1x2GB & 1x1GB Super Talent DDR2 667
WiFi: Intel Pro 4965 A/B/G/N

AC and battery mode work.

Issues:

1. Gaming Mode does not work.
2. Unplugging the AC adapter kills my WiFi and SysTray.

 

Ya its weird, seems its only/mostly 4965 ppl who have the problems, like me. My specs are in sig and the only issue is wifi on batt, and in linux the only issue is that wifi doesnt work after suspend.

 

Problem is that it made me so upset that I am planning on selling my laptop. I didn't realize before how important a long battery life would be to me! After being tethered to the wall all these years, I want to be able to move around for hours on end without needing the cable. It always seems to get in my way.

 

1 - santa rosa 2.2 VS conre 2.13 = just 6 mints dieffrence - correct me guys if im wrong


my advice to u is downclock to 1.8 ghz if u can't buy another c2d cpu with less clock -

CORE 2 DUO PROCESS FAMILY are great anyway for usually tasks like ( playing music - offic word , powerpoint , excel .... watching movies .... editing videos and images need a more cpu power .... this anyway won't affect more than 10 - 16 % !! i thing it doesn't worth it

 

another resolution:
-first uninstall turbo gear
-then switch to "power saver" in windows power option
-unplug the ac adapter~

 

The way I solved it was to replace my intel agn card with one Ken at Gentech sent me. Problems ceased!! Asus was able to recreate the problem and said it was from a batch of bad intel wireless cards. Anyone listening this time??!

 

Didn't Ken mention something about the power consumption of the first C2D processors would exceed the amount supplied when the laptop would run off of battery? I can't remember which post it was in, but I remember it saying something to the effect that the newer run of c2d processors consume less battery and therefor will run stable when on battery power with 3GB of memory.

The people with the 3GB memory issue, please post when you got your c2D processors. Just curious.

 

I received my C90s on 9/28...I had wireless battery problems when I had two gigs of ram, replaced my intel agn card, problems ceased. Upgraded to 3gb Super Talent Ram from Gentech, no problems whatsoever. I have MB rev F06, and use a 90w power adapter.

 

I never had any wireless card problems. It was strictly the fact that it would freeze when going into Power Saver or when unplugging the AC while surfing.

 

Neither did I, except strictly the fact that it would freeze when going into Power Saver or when uplugging the AC while surfing. I'm telling you it fixes it!

 

Ok....simply put, here was my problem: I would be surfing on the internet, and think, hey, I need to bring the C90 in the other room. When i unplugged the a/c adapter, it would pause briefly, then freeze within 1-3 seconds.

Changing out my wireless card fixed that problem. It was hard to believe, but that was the problem.

This is the fix to the 'wireless on battery freeze problem' as prescribed by Asus in Taiwan. They were able to duplicate the problem and determined, surprisingly enough, it was a bad batch of intel wireless cards that would work on a/c power, but not battery.

If anyone has this problem, you now know how to fix it, yourself, under warranty, in about 5-10 minutes (3 wires to reattach, very small) If you don't fix the problem, don't blame Asus.

I'm done

 

I was able to get 1gb sticks to work just not 2gb sticks. I suppose for the sake of things I can remove my wireless card next time I have some free time and see if I can boot with 3gb ram on battery.

If I can I will be really happy if not atleast it can confirm that the wireless card is not always the issue.

 

Viscious....let us know....Ken saved the day with me by prescribing the new wireless card, he said he had a hard time believing it at first when Taiwan told him that was the problem. I had two gigs when I had the problem, now I have three gigs, no problems with boot, battery, wireless, nada. Interesting.

 

but in their recent posts, both Eddie and Ken mentioned there was an issue with the 4965 cards... hence they dont offer it with the c90s anymore. they're using 3945 cards... until asus fixes it. ( and they tried the 4965 with other models and its working perfectly fine... )

But with vicious help, maybe we could really put this matter to rest ? lol.

 

I will be getting all my parts in this week to build mine. I've got the 3945 and 3GB of supertalent, I'll let you know if I have any issues with booting from battery or transitioning from ac and battery.

 

Zoid,

This is what I was referring to in my Bios thread. I really think it's a problem with Asus' bios or something. At least that's what I'm hoping for.

 

I tried it just got done and I am posting from my laptop now. I totally removed my wireless card both from its slot and all the connectors and tried to boot into windows via battery and it froze at the windows loading bar just like before.

Taking out my 2gb ram stick and putting in a 1gb one fixed it.

So in my case its still ram compatability causing the issue not the wireless card, I personally have had no wireless issues at all and I have the older card.

 

Did you get an answer from Ken on this? Replacing my card with the one Ken sent fixed my problem with 'battery on wireless', and I made no changes to bios. It sounds like Gentech isn't offering the 4965 card until INTEL fixes things.

Ken, if it's the bios, then why did you send me the new card, and why did it fix the problem? lol

 

Yep, Viscious....the ram incompat is it's own distinct problem as you proved just like Ken proved to me I couldn't surfing on battery until I replaced my 4965 card LOL

There must be some ghosts in the machines somewhere

 

There is a possibility that the new 4965 you received had some sort of updated firmware on it from Intel.

 

Yes, I think that's it. I think that is why I was sent the new card, and it worked. I don't think it was hardware, unless Ken knows something he would want to share...hint hint