*HP HDX 9000 DRAGON Owners Lounge, Part 2*

[2.0™]

Voltage regulator overvolting mod instead of CPU pinmod?

The VID4+Vss mod sends a signal to the Voltage regulator (VR) to add the 0.2V. If the VR is more accessible then consider setting the corresponding VID4 pin to GND there instead. Examples below to help you along:

Overclocking laptop Core 2 Duo P8400 Mobile CPU: mod in a voltage divider to provide a % increase to all VIDs.
Acer 1810T undervolting via voltage regulator VID pins

That thought did cross my mind but I'm pretty sure it's on the other side of the MOBO near the CPU. Would save the trouble of having to redo the thermal compound on the CPU.

[DRAGONe]

there is pcmcia or expresscard in dragon?

ExpressCard.

[2.0™]

Hi, does anyone knows cheap way to add two extra monitors (dell 1920x1200) to hdx? Thanks

Can do a $114 DIY ViDock using a HD5450 + 12V AC adapter. Connects up using your expresscard slot.

$65-shipped PE4L+EC2C
$40-HD5450
$9 12V/72W AC adapter

Can even add a third monitor if get a displayport to DVI adapter. Eyefinity supported on HD54xx or newer cards.

There's USB 2.0 DisplayLink solutions as well, but don't expect any decent framerates even for basic web browsing.

I believe you can dual out with VGA to one monitor and HDMI to the other.

If not, Nando's solution is an option.

Anther option is Matrox dual head: Multiple Monitors for Laptops | Multi-monitors

[Dominick_7]

LOL. No, it won't fry anything since the PCI-e bus is not affected by the FSB O/C.

Ah ok sweet!

It's a necessary evil to get at two pins - VID3 or 4 and VSS. Need more power and they supply it. Basically, you use a very small wire that will be inserted into the CPU socket. Then you put the CPU back into the socket.

SO if an HP tech needed to take the CPU out, he/she/it would see the wire and know you did it.

So you do have to take out the CPU in order to do the mod.. Hmm.. Can you list the reasons an HP tech may take the CPU out? Or is that something they might do like 40-50% of the time?

[Dominick_7]

Just a FYI I have been running 3.8@1.35v non-stop for months now without issue. That is the max I felt safe with the VID. I was able to run Prime95 overnight with these settings and never broke 76c.

That's phenomenal! If I may ask, which exact CPU did you get, SLA_ or Engineering sample?

[2.0™]

So you do have to take out the CPU in order to do the mod..

So far, yes, unless the voltage regulator is located and the circuitry is easy to follow. The CPU jump is the easiest to do and undo. So that makes it best.

Hmm.. Can you list the reasons an HP tech may take the CPU out? Or is that something they might do like 40-50% of the time?

Only reason they would take it out is when exchanging what they think is a bad mobo for a new one. They would transfer your old CPU and RAM to the new one. That is when they *might* notice the little tiny wire that is jumping VSS and a few pin holes over, to VID4.

[CompTrekkie]

That's phenomenal! If I may ask, which exact CPU did you get, SLA_ or Engineering sample?

I have an OEM version. I got lucky back when the Ebay supply was more than the demand. Only paid $260 and sold my 8100 for $100.

[RickiBerlin]

No reply up here:

@2.0

In which way the behavior of the CPU clock in Battery? (EIST off)
Previously, the clock is yes to 6x (T9300) is limited.

and no reply up here, what have I just done?

Well then I answer myself

1.No, the limitation of the CPU in Battery Mode is also retained despite ThrottleStop.
(T9300 max 6x199,5 MHz FSB or approximately 1200 MHz CPU)
But: - If one of the options ThrottleStop "Unlock Bidirectional PROCHOT enabled and then the main window," BD PROCHOT "sets, HDX runs on battery with no CPU limit.

Unclewebb describes "BD PROCHOT" as follows:

BD PROCHOT stands for bi-directional prochot. PROCHOT stands for processor hot which is the signal that is activated within the CPU when it reaches approximately 100C to 105C depending on the model number. This signal is what initiates thermal throttling so the CPU can slow down and keep from over heating. Intel included a bi-directional feature so if something else like a GPU is running too hot, it would be able to send a PROCHOT signal directly to the CPU and force it to cool down so the entire laptop cools down. Very few laptops seem to use this type of throttling. This feature was added for the Asus G51. Disabling this will allow your CPU to continue to run at full speed. Disabling this will not prevent your CPU from thermal throttling at its normal Intel set thermal throttle temperature. By default this is locked and you will need to go into the Options window to unlock it so you can toggle it on and off.

and Guide Quote unclewebb:

BD Prochot
To unlock this feature, you will need to go into the Options window and select Unlock Bidirectional PROCHOT. This will then allow you to adjust the bidirectional PROCHOT bit within your CPU. The graphic chips (GPU) in some laptops will signal the CPU to slow down and throttle using this method. By disabling this bit, some laptops will continue to run at full speed beyond the normal limits so you should closely monitor the CPU and GPU temperature when adjusting this bit. When the Unlock feature is not checked, this box will only display the current status of the Bidirectional PROCHOT bit but you won't be allowed to change it. This feature was added for the Asus G51J laptop series and may or may not be of use for other computers..

and Quote unclewebb:

Unlock Bidirectional PROCHOT - This is a safety feature for the BD PROCHOT feature on the main page. It's generally not a good idea to turn off BD PROCHOT so this might get users to think a little harder about what they are doing.

Anyway, it works on the HDX for full power CPU in Battery.
The GPU is limited, however, still at 383 MHz max.

"ThrottleStop" and "moddet F40E BIOS" the best use of tools is a long time.
Many thanks to Unclewebb and Nando4!

2.My settings and results for VistaHP32 and Win7Prof64 with T9300:

Performance: "Set Multiplier" x13.5, "Voltage 1.0250"
This voltage is sufficient for me, even under load.
"Voltage 1.0125" gives me a BSOD.

Results with 1.0250 V:

wPrime32M = 32.526 sec
wPrime1024M = 1034.08 sec (CPU fan stays quiet even at Bench, Temperature under 50 C)

When voltage is over 1.0250 (1.0500 or 1.1000) CPU fan rotates at wPrime benchmark higher. Temperature over 50 C)

3DMark06 CPU 2.7 GHz to 1.0250 V, GPU 650/1040/1625, Vista 32 with NVidia 257.21:
3DMark Score 10111.0 - 3DMarks
SM2.0 Score: 4735.0
HDR/SM3.0 Score: 4425.0
CPU Score: 2433.0

For more information on "ThrottleStop" on the HDX:
1. Auto Startup of the Prg. I do not recommend. The reason for this is not always correct voltage setting at startup.
Although not untervoltet (no BSOD danger), but the voltage is happy times on the set value. If Auto Run, Take control with tool like CPU-Z voltage!
My tool is always HWiNFO32.

2. The individual profiles are shared with the HDX not readily available. If you want to use this, so begins one's preferences with the best "EIST" field. So the Prg.Window. IDA should be switched off at low profiles.
In addition, under clock settings are only possible if the energy savings plan allows. For example, balanced energy profile. (Lowest processor state 5%)

3. A Manual editing of the "ThrottleStop.ini" is not necessary!
In version 2.89 and 2.90 beta 4 of the IDA startup mode is indeed activated in the options menu.

4. To access the HDX factory clocking, must before closing ThrottleStop following are enabled: "SLFM", "EIST".
The turbo must be enabled. (Hook delete)
And to not accidentally to run on battery without limitation, must be "BD PROCHOT" be set!
Profile, voltage, and multiplier are irrelevant.

5. More stable profiles:
Game Profile: x12.5 at 1.0125 V = ca 2.5 GHz
Internet profile: x10 at 0.9500 V = ca 2.0 GHz
Battery profile x8 at 0.9500 V (x6 with Vista to be able to capture SLFM) = 0.8 GHz, or 1.2 GHz (x6), or 1.6 GHz (8x200 MHz) As I with "EIST" capture as desired.

[2.0™]

RickiBerlin!

I can't believe I missed that you were in NY! Totally missed that post. November was a busy month.

Anyway, I was trying to figure out the battery settings but you beat me to it. I got sidetracked with working on FSB overclock.

You're 3Dmark06 score is impressive. I got 9713 w/CPU @ 2.7, 610/975/1525 on GPU.

Have to try out 1.025V. Currently @ 1.100V

I'll revise the setup post with the content of your post later today or tomorrow.

[RickiBerlin]

RickiBerlin!
I can't believe I missed that you were in NY! Totally missed that post. November was a busy month.

I drank your beer itself. Next time....

I got sidetracked with working on FSB overclock.

I'm At an advantage. Do not need a flash RAM, I have 8GB PC2 6400 800 MHz 6/6/6/18. I had a good instinct. Maybe later working on FSB. Now I reach 2.7 GHz.
Vista32 with pagefile.sys on RamDisk over 4GB of 8GB (PAE). DualbootWin7 64 with 8GB without pagefile.sys. Good thing I had not bought a 667 MHz 5300th

Have to try out 1.025V. Currently @ 1.100V

At 1.0125 V of the crash is in idle, so even without the burden of wPrime etc.
(Test individually on Vista32 and Win7Prof 64)
1.0250 V at no BSOD. Stable on V and 7, despite several runs of wP32M, wP1024M and 3x3DMark06.