*HP HDX 9000 DRAGON Owners Lounge, Part 2*

[kohai]

If you light up the LCD with a flashlight you'd still see the outline of images/text on the screen. Just that the backlight no longer works.

Ah, thanks, Nando.

[bigscreen]

Yeah, the LCD is working fine if I shine a flashlight on it.

The inverter problem is strange. My unit shipped new from HP with a high pitched whining on the highest backlight brightness out of the box, but the lower brightness settings were silent and the picture never suffered, so I left it alone. I didn't want to risk dead pixels on an RMA unit since they just discontinued the Dragon at the time and the models with WUXGA panels were less common.

Apparently the high pitched noise from the inverter was coil whine from the two small inductors on either side of this dual lamp inverter. Slowly over the past few months the brightness setting just below the highest started making a different buzzing type noise and now on boot up the inverter tries to power up but shuts down after a few seconds and some very loud buzzing. Sometimes on the lowest brightness the inverter will stay powered on and the backlights remain on, but increasing the brightness one notch will quickly cause it to overload or something, buzz loudly for a second or two then shut down.

The Dragon always stays powered on just fine and the LCD shows picture, just the backlights go out, I have it hooked up to an external LCD monitor via VGA for now.

Some posts say inverter problems could be cold solder joints and you just have to reflow the solder, similar to the idea behind baking the GPUs. Supposedly the connections to the transformers on the inverter are the most suspect. Have any of you guys had inverter problems or experience fixing any?

[cutthroat_jake]

Yeah, the LCD is working fine if I shine a flashlight on it.

The inverter problem is strange. My unit shipped new from HP with a high pitched whining on the highest backlight brightness out of the box, but the lower brightness settings were silent and the picture never suffered, so I left it alone. I didn't want to risk dead pixels on an RMA unit since they just discontinued the Dragon at the time and the models with WUXGA panels were less common.

Apparently the high pitched noise from the inverter was coil whine from the two small inductors on either side of this dual lamp inverter. Slowly over the past few months the brightness setting just below the highest started making a different buzzing type noise and now on boot up the inverter tries to power up but shuts down after a few seconds and some very loud buzzing. Sometimes on the lowest brightness the inverter will stay powered on and the backlights remain on, but increasing the brightness one notch will quickly cause it to overload or something, buzz loudly for a second or two then shut down.

The Dragon always stays powered on just fine and the LCD shows picture, just the backlights go out, I have it hooked up to an external LCD monitor via VGA for now.

Some posts say inverter problems could be cold solder joints and you just have to reflow the solder, similar to the idea behind baking the GPUs. Supposedly the connections to the transformers on the inverter are the most suspect. Have any of you guys had inverter problems or experience fixing any?

I changed the inverter twice and the backlight twice, all on separate occasions, on my old Toshiba laptop. You could do it DIY?

HP HDX9200 HDX9300 Series Dual Lamp Inverter + Cable on eBay (end time 08-Apr-11 22:48:03 BST)

CJ

[sirstanleybowles]

Hello,

I have been trying out some of the excellent work on here and wanted to post some results and wondered if Im doing it correctly! lol, I thought I would have a go at throttlestop and after 2 x BSOD finally got here:




Dont really know what to make of these results! I thought it would be good practise until I receive my new ram and UJ220 Panacronic and I invest in a X9000 240GB SSD and a 500GB seagate XT! One bit at a time me thinks!

But what I do know is my 3DMark06 test was 7775 but its now:





I was running the F.41 HP Bios and today flashed the modded F.41...seemed to go ok without any problems..Cant see any difference within the bios itself though maybe I just cant see it!! still learning big time so please forgive my ignorance lol.

regards

SSB

[no-tech]

Just to have some fun today I've clocked my x9000 to 4085MHz (215x19) no way to make it stable I've rised voltage to 1,45v didnt go more as I don't know how much it can handle.

[sirstanleybowles]

Just to have some fun today I've clocked my x9000 to 4085MHz (215x19) no way to make it stable I've rised voltage to 1,45v didnt go more as I don't know how much it can handle.

lolol thats brilliant!! and theres me with 2.3(nearly!) lolol

[User Retired 2]

Any T8xxx HDX9000 owner want to do the TME-unlock?

I suggested earlier that t T8100 or T8300 has less CPU cache so would make a better overclocker than a T9xxx. A M1530 owner has a T8100-2.1 dual-IDA overclocked to 3.3Ghz (287x11.5) here proving that.

So assuming the HDX9000 chipset/systemboard doesn't provide an OC wall then a HDX9000 owner may very well get those high FSBs with a T8xxx CPU. Consider a T8300 has it's extra +1.5 multipliers would be getting 3.6Ghz with such an overclock. To the moon . . .

[Stewed Therapist]

RickiBerlin I was intrigued by the expanding plug on your modded ic chip.
Could this chip be reprogrammable (eprom)?
Then any air in the space between the plug and erasable window would expand when changing voltages because of the extra heat generated. Possible?

[Dominick_7]

Hi, I'm trying to keep up with the forum still on my Droid X because both of my hard drives died.. so I have about 5-6 business days till I get recertified replacements.. Had a question for you Nando.

Nando: Did you have any idea on if any quad core cpus that could work in the HDX? The pll mod seems way too daunting for me and figured it may be easier to to a cpu upgrade..if I'm not too terrified that is to open the HDX.. Also if a quad core could work I'd tend to think it would more specifically suit my needs perhaps better than an x9000 would. If you and/or anyone had any ideas on this it would be appreciated. Thanks for all your great work btw Nando!

[User Retired 2]

Nando: Did you have any idea on if any quad core cpus that could work in the HDX? The pll mod seems way too daunting for me and figured it may be easier to to a cpu upgrade..if I'm not too terrified that is to open the HDX.. Also if a quad core could work I'd tend to think it would more specifically suit my needs perhaps better than an x9000 would. If you and/or anyone had any ideas on this it would be appreciated. Thanks for all your great work btw Nando!

Q9xxx quad-cores are 1066Mhz Montevina CPUs. NO chance that it will work in a 965PM system like the HDX9000.

If you can disassemble your system then consider asking a mobile phone repair shop to do the actual soldering of the resistor per 2.0's TME-unlock PLL pinmod instructions. It's easy. They shouldn't charge you more than $10-$20 for the 5mins (max 10mins) it will take them to do it.

Otherwise go a X9000 and overclock using Throttlestop. No pinmod necessary.