Asus G50VT-X1 fan problem

I got a G50VT-X1 from best buy a little over two years now. After a cleaning session that I have performed countless times before on this computer caused some issues with the fan.

The fan no longer turns on during boot nor does it turn on unless the cpu is hot. The problem is that my 9800m gs is toasting nicely while the fan stays stationary. The fan comes on later because the temperature is so high on the gpu that it started to transfer heat to the cpu. By that time, it was too late to cool off my gpu for my computer to properly boot up.

I can still boot in safe mode probably because it is using generic VGA drivers with no acceleration instead of nvidia drivers, keeping its usage to a minimum thus lower temperatures.

The problem could be:
1, the fan. The fan could be getting old and ineffective, but it didn't seem like the problem because it does turn on, albeit very late.
2, the bios. i have flashed it to the latest version but it still didn't work.
3, the temperature sensor on the gpu is damaged and/or not linked to fan control on the motherboard/bios

The problem shouldn't be:
1, broken heatsink/pipe. the fins are still fairly hot, transferring the bulk of heat to the fins to dissipate, but the fan is not turning on
2, dust build up. I have cleaned all the fins and dust out of the computer.
3, unplugged fan. well, the fan does turn on when it's melting hot, but not any before.

If anyone have any idea what else could be causing the problem and/or solution, your help is greatly appreciated

 

If the fan takes a long time to turn on, it could have a bad motor. Is the fan making any bad noises like a bearing is worn out?

You can probably find a replacement fan pretty easily, here's a pic: http://forum.notebookreview.com/asu...531-g50vt-x1-fan-replacement.html#post6980030

 

Thanks for the reply.

How likely is the fan problem? I just wanna make sure because the cheapest one I found was about $40.

I also heard that putting some WD40 on the motor would help. Possible?

 

If the fan is grinding some oil would help, but I'm not sure it'll help a dead or dying motor too much... Also that fan should be about $10 used, not $40. Try searching google, ebay doesn't look like it's got many deals right now. There is another compatible model but I can't find the thread that has the part number.

Edit: The other one is DELTA KDB05105HB -7F36

http://forum.notebookreview.com/asus-gaming-notebook-forum/542811-g50vt-overheating.html

 

I'd just short the fan so it ran all the time. the g60 pretty much DOES run with the fan on all the time anyways, so it's not like it'd be raising the noise level that much.

 

how did you short the fan?

and where did you find the $10 ones? I couldn't find any below $40.

Oh and when the fan spins, it seem to spin normally. No grinding noises or anything.

EDIT: oh nevermind, I found one for about $7. Still need to know how to short it though.

 

If you can help it, don't get the Delta fan, get the forcecon because it moves more air (more amps rating and 17 fins vs 13 fins); Forcecon DFS541305MH0T Forcecon DFS541305MH0T Cooling Fan

 

I saw the delta fan and it wasn't the same as the forcecon one. Didn't think the delta will fit. Going forcecon for now.

Or try to make my current fan run all the time, which i haven't got to do yet.

 

Ah Crap.
I just got my Forceon DFS541305MH0T and I don't know how the heck I missed it, but apparently it's a 13 fin fan!
Online verifies this to be true.

Well I hope it moves more air than the stock G50VT fan (and fits the heatsink). What's the G50VX and G51j fan? I know it's 17-fin and I THOUGHT it was Forcecon.

The Delta KDB05105HB is 13-fin as well, .4amp. The Forcecon is .5amp


It seems that it is a different Forcecon fan that has the 17 fins, but also 0.5 amps like the other one.

This one has it;
ASUS G51V HEATSINK W/FAN VIDEO HEATSINK 13N0-E0A0601 - eBay (item 300500160752 end time Jan-31-11 16:27:22 PST)
I messaged the seller about fan model# details


EDIT:: as near as I can tell the fan that has 17-fins has the "f8us" whatchamacallit on it..but I cannot find this (bare) fan to buy.
The fan I got is here( http://www.pchub.com/uph/laptop/88-45085-13175/Forcecon-DFS541305MH0T-Cooling-Fan-.html?)
, and it has the F7B1, M139C, F957C, M240C, M275C whatchamcallits. 13-fins.

I

 

Well I got the Forcecon fan after a grueling 23 days of overseas shipping.

Much to my disappointment, this fan DOES NOT fit in my G50VT. The fan is a tad small for the heatsink, therefore cannot be installed in the system. I removed my old fan, which is a Delta KDB05105HB that I will probably order.

 

Yep that fan from pchub is a bit small! I tried it out a few days ago and I managed to screw the fan into 1 hole of the heatsink, then use duck(t) tape to seal it in so no air goes out the end facing the underside of the keyboard. Seems to not move any more air than the stock Delta fan but it works fine! Oh yea, except the electrical connector is reversed on it.
The wire order is opposite. So, you can insert the connector reversed into the fan header, but first you have to use a razor blade or something on the connector to make the holes longer for the pins to go into the connector.

It seems like you should just get another Delta fan. They work fine. Else it seems the only option for more air flow is to get a 13N0-E0A0601 heatsink that has the 17-fin Forcecon fan..

 

So are there two different heatsinks for these two different fans? Or are there different versions of the Forcecon fan that are different sizes?

 

My guess is that the G51VX heatsink doesn't have a smaller hole for the fan than the G50v(t) because they need more airflow if anything. So my guess is that the fans are 2 different sizes but heatsinks fan hole is the same. The 17-fin Forcecon is probably the same dimensions as the Delta fan in the G50v(t) laptops. But don't know for sure. When I put a X9100 in my G50VT I'll know because I'll order a 13N0-E0A0601 then, if I can find one on ebay

Further evidence would be that the 'F8US' indicates the form factor and the Delta fan *I think* has this on the label and the 13N0-E0A0601 Heatsink has the Forcecon with the 'F8US' as well. The Forcecon I tried has 'F7B1' on it.

 

I had already ordered that forcecon fan when yall posted that it wouldn't fit. I had ordered the delta fan at the same time but it is taking forever...I did some engineering to get it to work. I cut the connector off the old fan and tied the wires to the new fan...put a screw and duct tape to hold it and it works for now....

 

The Forcecon fan has a lot of problems in terms of compatibility, such as you mentioned including not covering the hole completely and reversed wire head. I don't trust the long term reliability of jury rigging the fan into the heatsink so I ordered the Delta fan. However, this fan is a lot more rare and more expensive than the Forcecon brand, and it ships from overseas which will turn into another 3-week wait.

 

I have no intentions on leaving my laptop like this. As soon as the oem fan comes in I will be installing it. The only problem I have now is that the fan runs at full speed all the time. current temps are 33C on the CPU and 38C on the GPU. I've looked all over the web for answers to this but have found none. I'm wondering if it has something to do with it being a different fan.

 

DitchDigger87, where did you order from? I'm looking for the same model and all that I've been able to find are a few Chinese sites with bad reviews.

 

Well, I ordered from acceport.com. It was the only reasonably priced site I could find. I am still waiting on the fan to get here. The only assurance I have is that they take paypal so if it doesnt come then I can open a dispute with them. Sorry it took two days to respond.

 

I finally got my Delta fan and thought I was going to fix my computer.

Nope. It was not the fan that caused the problem. I spent about $50 and 5 weeks in total to fix this problem.

If anyone knows how to short the fan to run all the time, let me know.

 

I think you can pull the blue wire to make it run all the time.

What's the issue, overheating? Have you repasted?

 

Ah Thanks, the fan runs now. But now I think there is permanent damage to my gpu. There are weird lines and artifacts during startup, and I can barely start it up. Sometimes it just bluescreens.

Read my OP. I tried to describe it in detail.

 

I am running my fan through a manual fan controller and it's just red and black connected. Blue and yellow do something with pwm, so there's a good chance in my mind that AllUrGroceries is right.

EDIT: did not see your post on the next page... very unfortunate about your GPU

 

CORRECTION:: "F8U5" , yes, that is a FIVE after the U for the Forcecon fan.


I bought a whole G51VX/G61VX heatsink for 35 bucks on ebay to just get the fan. Will see if I can return it and get a bare fan and save money. At any rate, I will post pics of the 2 fans and heatsinks tonight probably.
I will verify that the Delta fan of the G50v/G50VT is the same dimension and screw positions is identical to the Forcecon of the G51VX/G60VX/(G51j?)

If I can, I will record a bit of sound to compare RPM speed.

 

Yes, the G50VT and G60/G51VX heatsinks look to be identical. The fan dimensions are identical.
The forcecon fan fit perfectly into my existing heatsink.

I can't test officially how much better it cools but basically the GPU temperatures have been reduced by around 5 degrees Celsius when running seti@Home on the CPU cores &GPU & also running Furmark as well.

I would say that it gives 'half a notch' better cooling. It isn't anything amazing but its a splendid upgrade if your fan is going out (getting noisy) and you need to replace it..

Now, does anybody know how to overvolt this fan to 7 volts? That should give some good cooling.. and shorter fan life but oh well.

Oh and here is the youtube video so you can hear the difference in tone when both fans are @ 100%.
http://www.youtube.com/watch?v=gDGg6IJ7sko

 

I need to replace my fan, too. What is the full part number for just the fan?

I saw an earlier poster describe it as "Forcecon DFS541305MH0T," but said it didn't fit. I need the full part number for the Forcecon fan that ends in F8U5.

If someone's got a link to a place that sells just that bare fan, that would be even better.

Thanks!

 

I'm encountering a strange problem with my cooling fan on an -X1 from bestbuy. For like 1 month now its been acting weird, it makes a whole different sound and it varies much more than it did before in terms of RPM (eg: before in used to stay on 3.1K RPMS when it was slightly loaded now it goes as low as 2.1K . Now while I am typing the temps are : 36 HDD 66 GPU and 56 CPU with 2.3K RPMS. 2.6K, 2.8K 1 min later (it used to go from 3.1 to 3.8 4.3K)

What should I do ? I have a feeling it's not dust but I havent opened it

 

Is it making a grinding or ticking sound?

Why not open the bottom panel and blow on it with some compressed air, it's super easy?

You shouldn't need instructions to get the bottom off, but they are here: http://forum.notebookreview.com/asu...8551-asus-g50-notebook-disassembly-guide.html

 

Hey, tks for the quick answer.
I opened it a few times but I havent found the time yet. It's more like a grinding sound but it also varies in terms of I dunno what u call it in english but the way it sounds not the volume. Imagine you'd have a small rock in a centrifuge and changing the place from time to time.

I will prolly try and do it tomorrow, if I have to chage the cooler what others are compatible with this model ? (SH from other disassembled laptops maybe ? more powerful ?)

 

You can try taking the fan out (see the disassembly guide). Ten taking the spindle off, put a drop of oil into there. The spindle is just held in by magnetic force, so a good lift should get it separated. Here's a pic of a fan apart (this is from a g71). Put the oil in the hole, not on the spindle itself (the exact opposite of what the pic says). Just one small drop of 3-in-1 oil is all it should need.

http://forum.notebookreview.com/asu...ot-problems-fan-what-do-i-do.html#post7191609

 

wow thx guys, after reading all your post, i ordered this

FORCECON DFS541305MH0T F8U5

i just receive it. put it in my G50VT-X5 modified ... wow. low noise and real low temp ... im running prime 95 right now on my T9400 OC to 3.0Ghz and the max i hit was 48c. it was 57c with the stock 13 fines fan i dont hear the fan, its insane ... dont know why i didnt change it before ... a must for everyone who got a G50vt. cant wait to see the temp under BF3 .. and ya, the old G50VT can run BF3 but my AW M17x-r3 run it better lol

 

k tks for all the help ALLurGroceries I opened it up and put some normal grease in it as it was the only thing I could find, used a needle to do that. Good news is the sound is great now. Bad news is it's running at a slightly lower rate (2.6K and it used to do 3K) So far though playing WC3 with opera (10 tabs open) holds at 38C HDD 64-70 GPU and 52-60 CPU

PS: I also changed the thermal compound on the CPU with AS5.


Should I try and change it on the GPU as well ? ( I can't find thermal pads)

darn !
Vent back to low RPMs again (2.4K and 70C with just opera and MSN open)
Is there any possibility for the vent not to be faulty and be some other cause ?(some kind of a driver or senser gone rogue ?) Also I did a stress test with FurMark and highest temp I got was 90C which was steady for ~20 mins

 

If your fan still isn't spinning like it should, it's probably the fan motor dying.

Yes the sensors can go bad, but normally with that your temp reporting would be way off.

You probably just need a new fan.

Repasting the GPU could be good, but you'll either need a thick paste (possibly with copper shims) or a replacement thermal pad. It's a relatively thick pad on the GPU in the G50. It really depends on your GPU load temps. 90C isn't too bad at all for that chassis, I'm not sure whether you're on a G50V or Vt though, it would make a small difference (Vt running a tiny bit cooler due to the newer GPU).

 

it's a G50Vt-X1

what are some good choices?

 

Just read backwards in this thread for people's experiences with different fans...

 

FORCECON DFS541305MH0T F8U5 DC5V 0.5A 4PINS CPU FAN NEW | eBay seems good hope it fits

 

That seems good I think. This one might be the same one pictured, too:

eBay - New & used electronics, cars, apparel, collectibles, sporting goods & more at low prices

 

tks dtd00d I ordered those and they should arrive in ~3 weeks. I zoomed in and it was written F8U5 and 0.5A so it's the same


any idea what thermal pads/ copper shims to use for the VGA cooling and how many pieces I might need ?

 

I just ordered a set of these 4mm high blocks:
8 X Copper Heat Sink For DDR DDR2 DDR3 RAM Memory RHS03 | eBay

I currently have a set of these 5mm high blocks in my laptop, some of them are too tall for the GPU heatsinks:
8x Memory MC-200 Copper Heat Sink For DDR DDR2 DDR3 RAM | eBay

In total that's 16 blocks, which is plenty. You should orient the long ones so the lines kind of point to the fan (to direct airflow, there's another thread that reflects the significance of this).

I've had trouble securing the blocks to the heatpipes. Most of them stay on but perhaps it's heat cycling or something so a few of them fall off from time to time, very dangerous. I just ordered some Sekisui tape:
sekisui 5760 | eBay

Don't get shims, they're cheap but don't do much in the way of dissipating heat. They're better for closing gaps between heatsinks and dies.
And that's about it! Go crazy

 

So those copper blocks which are designed for RAM can go on the GPU also ? What was the gain in your case ? (temp wise)

 

They're just copper heatsinks with thermal adhesive on the back. They can go anywhere you fit them. I put them on the heatsinks+heatpipes.

I don't know what my case temp change was actually, when I changed to a 260m I also changed the fan and made a manual fan control. It was impossible for me to measure things effectively but I do know it takes longer for the GPU to get to max temp now, and that temp is perhaps 2-5C lower. I can have fans on a low speed safely now.

See also (main thread for this stuff):
http://forum.notebookreview.com/asus-gaming-notebook-forum/414147-grab-copper-drill-now.html

 

Just got the new forcecom fan ending with F5U8 and it sounds great. I do have a question: 2 of the wires comming out of the fan are reversed although they interchange back when reaching the connector (ending up having the same arrangement as the old fan) does this affect the vent in any way ?

 

Nope, wires these simple won't be affected by a simple twisting/turning. As long as they end up at their respective connectors it's all good. You can twist them a bit more if it helps them stay in place/helps you manage their placement better. Just be gentle.

I hope this fan blows more for you. Haaaa.

 

That's not what I ment.

what I ment is they come out of the fan 1 2 3 4 but the socket ends up 1 3 2 4 just like those older IDE cables not the SATA ones that used to have a twisted cable if you understand my saying.


Temperature wise I had a surprise: max temp was 86 in furmark but then it stayed at 81-82 so it's the same as with the old dieing one but I'm pleased of the sound

 

Aha. Well one wire is PWM (speed control) and the other is tach (speed reporting). So if your fan still spins up and down like it should and programs like HWMonitor can read the fan speed, everything is good.

It might take a certain temperature for the high speed mode to kick in depending on the DTS sensor used, so the 81-82 stable is what you should rely on.

 

ok man tks a lot, I see you got a great X1 there, after searching like 12 pages of G50Vts I have no clue what are the best thermal pads (I dont think I'll go for shimms...) any idea how thick they have to be ?

 

Not sure.
I think the stock ones are 1mm, but for some reason 1.3mm and 0.8mm also stick out in my head and I could very easily be making stuff up. In any case, the idea is to go as thin as possible while still making solid contact. Dunno if you've dealt with them before but they're pretty squishy and fragile to start with, so even if you got the thicker ones and they squished down when you installed them, you'd live. I would get something close to 1mm thick and go from there. I've never replaced the thermal pads on my machine, despite dust and rips in them (whoops). I did seal rips with more thermal paste though. Haven't had a problem really.

I was starting to take pride in how much I knew about this machine but you've humbled me again...

 

This is the most convenient One, assuming the data is correct as it has the highest conductivity (not much of an expert but the others ave 1.2-2W and this one has Thermal Conductivity:3.2w/m-K) I think I'll buy 4 of these and try my luck. I know the old pads are broken.


Dont worry my biggest surprises are also with things I know best

 

Sounds good. You might have faster shipping with this one if you're in the US, same thickness but a little smaller (2.5x2.5cm).
GPU Thermal Conductive Heatsink Pad 2.5cm x 2.5cm 1.0mm Thick | eBay

I think for <$10 it's well worth it.

 

bought the larger ones as I am not from the US. Also if anyone's interested the highest conductivity I found was about 7W/m-k but that was somewhat expensive. 3.2W/m-k however is the highest offering a good price

 

ok so I changed the thermal pads on GPU but I noticed that the central piece (which had nVidia something written on it was making contact with the heatsink via some thermal grease, so I applied there AS5 same as on the procesor (only 3 times as much). Rest was swapped with the pads like I said.

Right after starting the PC lowest idle temp I got was 48 on GPU and 40 on CPU which is quite an improvement. However, now as I`m typing the temps are back up again (63 GPU 55 CPU)

Should I wait a bit longer for the pads to make better contact ? (I know AS5 becomes better after 200-300 hours of running) or should I use Pads on the central piece of the GPU as well ....?

tks