Lowyat.NET: Latest topics by nohal

Using a Relay Switch at Supply Power

nohal — Mon, 14 Jun 2021 20:12:15 +0800

Hi,

As per topic. Is it okay to use a relay switch from car battery to underseat subwoofer, just as double protection? Does the underseat subwoofer can get damage from frequent switch on and off of the subwoofer?

The remote switch is still in use, just wanted to use a switch for direct main supply.

Underseat Subwoofer - Kenwood KSC-PSW8

Cheaper Solution for Hearing Aid Survery

nohal — Sun, 23 Jun 2013 00:09:23 +0800

My name is Naufal. I'm a student from University Tenaga Nasional, Malaysia. My group are given a task to do a project. We are conducting a survey for our latest project in this semester subject, Capstone Design. This subject needs us to build a cheaper solution for hearing aid that targeted for lower income or poor consumer that in needs of hearing aid. We do appreciate if you could spend some time to answer our survey form which will help us gathers crucial and valuable information regarding on building and finishing our project.

Online Survey Forms : http://www.surveymonkey.com/s/2SV75JC

I can assure you, this is not a SPAM. As I'm conducting a survey for my University.

Feel free to contact me if you need any assistance . nohal02(at)hotmail(dot)com

Thank you.

P/S:Mod, feel free to move my topic elsewhere suitable, but do inform me first.

Repainting Radiator.

nohal — Sat, 08 Jun 2013 14:47:45 +0800

I'm currently in a process of repainting my radiator. I've repaint one of my radiators with red ( original color was flat black ). I've gone through the process or sanding off original paint and clean everything. Few question will be ask;

What are the factors that lead to paint chipping after painting? Is it the choice of primer or paint coat or the clear coat. Owh, and its chipped right down to the bare metal.

Or it has to be perfectly cured for several days before handling it?

I've decided that the main probable cause is the primer or the clear coat. My idea is to use normal primer and normal paint coat, but instead of using normal clear coat, I'm planning to use high quality clear coat. My question is, by doing this, does it will prevent from paint chipping afterwards?

More question to come , I can't think of any right now.

Thank you.

USB FM Transmitter

nohal — Fri, 10 May 2013 21:24:08 +0800

USB Transmitter Circuit Schematic

To keep the fm transmitter circuit simple as well as compact, it was decided to use a chip made by Maxim Integrated Products, the MAX2606. This IC from the MAX2605-MAX2609 series has been specifically designed for low-noise RF applications with a fixed frequency. The VCO (Voltage Controlled Oscillator) in this IC uses a Colpitts oscillator circuit. The variable-capacitance (varicap) diode and feedback capacitors for the tuning have also been integrated on this chip, so that you only need an external inductor to fix the central oscillator frequency.

It is possible to fine-tune the frequency by varying the voltage to the varicap. Not much is demanded of the inductor, a type with a relatively low Q factor (35 to 40) is sufficient according to Maxim. The supply voltage to the IC should be between 2.7 and 5.5 V, the current consumption is between 2 and 4 mA. With values like these it seemed a good idea to supply the circuit with power from a USB port.

A common-mode choke is connected in series with the USB connections in order to avoid interference between the circuit and the PC supply. There is not much else to the circuit. The stereo signal connected to K1 is combined via R1 and R2 and is then passed via volume control P1 to the Tune input of IC1, where it causes the carrier wave to be frequency modulated. Filter R6/C7 is used to restrict the bandwidth of the audio signal. The setting of the frequency (across the whole VHF FM broadcast band) is done with P2, which is connected to the 5 V supply voltage.

USB FM Transmitter Sauce

I'm interested to build this thing. Just wondering, will it be costly to construct one?

And, if anyone can help, how much for these stuff? If can't give the price for each item, at least rough estimation for the whole stuff.

usb transmitter components list

» Click to show Spoiler - click again to hide... «

Thanks.

[WTA] Powder Coating Service

nohal — Tue, 29 Jan 2013 19:39:47 +0800

I'm looking for powder coating service,

anyone provide such service? Or anyone know whoever provide such service.

Shop nearby selangor, preferably near Shah Alam.

How about the pricing? Lets say, rougly estimate of powder coating of ATX tower.

Thanks.

OS Failed boot without XMP Profile + SpeedStep Pro

nohal — Sat, 21 Apr 2012 09:35:49 +0800

Hi forumers,

I have this problem on my new rig, My os wont boot further than half of the windows logo boot up screen. What it'll do, when the four color windows flying around, it only manage to get around 10-15% flying time, then it will restart. After first restart, it will boot into menu * repair your windows startup , boot normally *..

Chose to repair, it wont repair.. Failed..

Chose to boot normally, it will end up the same as first time. Bonus for subsequent boot, It will go BSOD. Lol..

BUT! all of this wont happen if i enable XMP Profile. Then it'll boot up normally.

What i wonder, if XMP will make my SpeedStep Function off? Because i already enable SpeedStep function, but then idle it wont downclock. Wanna make energy efficient sometimes.

My Specs.

Crucial M4 128GB
Corsair AX650
G.Skill Ripjaws Z 16GB (4x4gb) CL9 DDR2133
Asus Rampage IV Extreme, LGA 2011
WC
Intel i7 3930k @ 4.4GHz @ 1.32vCore (Stock) Will clock higher future.
HD 6850 1GB DDR5 < Don't judge.

Thanks!!

About Lighter Shipment Outside Malaysia

nohal — Tue, 07 Jun 2011 20:54:52 +0800

First of all, sorry to moderator if I posted this topic on a wrong section. Do correct me if I'm wrong.

As the topic said, I really like this zippo lighter, and this item can only be bought in the US online store.

The things that i've wondered are, Will zippo lighter can be brought into malaysia? will is pass the customs? will the item be charged for taxes?

Will it stuck at the customs or stuck at checking point?

Thanks!

My Alienware M17x Problem

nohal — Tue, 10 Nov 2009 19:53:58 +0800

Can i know why sometimes my Alienware Power Off by it self? its not like soft off when shutdown...

its like someone YANKED! the power cable while im using the laptop.... *Ive checked the power cable, i jiggle it sometimes to check if it loose or not, it did not power off*

sometimes it power off when i was doing heavy gaming, sometimes light usage * watch movies* , sometimes when i was juz idle-Ing...

should i take the laptop to dell? to repair it or something?

thx~

do reply in this thread or PM.

Any1 know Specific Stores Sell 17" laptop BckPack?

nohal — Fri, 02 Oct 2009 21:06:28 +0800

hey,

any1 know where can i find 17inch laptop back pack?

i was hoping near shah alam.. but in Low Yat also can...

i was looking for Dell Soft Hug 17 inch back pack...

or any other good Back pack.. prefer Targus brand.. or Swiss army(if exists)

WTA Comparison Between

nohal — Tue, 25 Aug 2009 07:11:45 +0800

sony vaio FW series vs Dell Studio XPS 16

which better compared in performance and overall

the price difference doesnt matter....

thx!!

Recommend Me Gaming Laptop 6k Below

nohal — Fri, 10 Jul 2009 02:19:20 +0800

CPU : Quads or good Duos

GPU : Nvidia GT/ ATI *good model*/ prefer 512MB ++

HDD : if can 2x cappable

Ram : 4GB - prfer expandable

Screen : 19xx X 9xx size ++ ... 17"-18" ++

High Batt Capacity...

Brand : Known Good brand..

Budget : 6k Below.. 6.5k~ * maxx*

thx!!

My Side Panel Modding

nohal — Sat, 07 Mar 2009 11:53:55 +0800

My Side Panel modding..

1st Attemp

2nd Attemp

3rd Attemp Day View

3rd Attemp Night View

Pls Give Comments , in a good way

Asking Silverstone Strider 560w Operating Temp

nohal — Tue, 17 Feb 2009 10:00:58 +0800

i can say its quite high.. because when i feel with my hand on top of the casings.. i can feel the heat.. quite high...

is it normal?

what change better?

nohal — Tue, 20 Jan 2009 19:36:23 +0800

juz wanna know ur opinion...

Ibanez RG370DX.. what good to change? pickups or trem?

*dont tell me to change guitar, cause thats for later* haha...

Coolermaster Elite 334 side panels

nohal — Fri, 16 Jan 2009 14:36:41 +0800

how to install extra fan on side panel... i juz dont want to make a hole on the plastic..

anyother solution?

the casings picture.

» Click to show Spoiler - click again to hide... «

Asking about Core i7 Liquid Cooling

nohal — Sun, 11 Jan 2009 18:41:35 +0800

im asking.. how much for all the stuff needed for turning fan cooling to liquid cooling...

the radiator/resevoir/fan/pump...etc...

how much total... can u guys list the chepest and quite good... budget around RM100-300.. mayb can go to RM450...

can any of u guys do the list...

im new to liquid cooling...

and if im already install stock cooling.. can it be chance to liquid cooling.. is it hard...?

what does the cooling covers? GPU/CPU/PSU/RAM? or other...

correct me if im wrong...

btw.. im asking...

thx!!

How to use norton goback...

nohal — Thu, 08 Jan 2009 14:09:44 +0800

Can it only restore only 1 partition? instead of backing up the whole HDD?

thx!

How to Use norton go back...

nohal — Tue, 06 Jan 2009 21:08:04 +0800

hye.. i hav some question regarding Norton Go Back..

1. How to back up the system...

2. Can i juz restore only 1 drive eg.. "Drive C:/" instead of restoring all the drive *C/D/E*?

3. Can i still restore to previous state eventhough i cant access my windows due to virus crashes?

About The GPU/CPU normal Temp

nohal — Mon, 05 Jan 2009 22:39:17 +0800

Here is some of my rigs Pic's..

view 1 of my rigs..

View 2 of my rigs...

and My GPU size..

This is mainly meant for lex..

Asking Stock temp on GPU/CPU

nohal — Mon, 05 Jan 2009 12:17:02 +0800

May i know the stock and normal temp for both hardware?

and the maximum temp it may go...