Search found 186 matches

by datapappan
Tue Jan 17, 2006 11:32 pm
Forum: Power Supplies
Topic: spontaneous-random reboot? gfx card or psu? or cpu?
Replies: 6
Views: 2565

My experience:

- faulty PSU would freeze PC after hibernation, i.e. no video signal, not sure if the rest of the stuff was up to par. No in-game freezing though.

- OC'ing GPU, with insufficient cooling would freeze the card. This was in experimental (read fanless) mode.

/datapappan
by datapappan
Mon Jan 16, 2006 8:08 am
Forum: System Advice / Troubleshooting
Topic: Case airflow vs. Artic Cooling VGA coolers
Replies: 7
Views: 4370

Seems like you need to open up more inlet space. I've seen something similar trying an all exhaust setup - lot's of air was making its way into the case via the I/O backplate (seen with smoke pen). What you have is two large fans winning over the small one.

/datapappan
by datapappan
Sun Jan 15, 2006 9:03 am
Forum: Notebook Systems
Topic: Fan Control software for Thinkpads here
Replies: 3
Views: 5005

It's a T42, not the p version. 1.7 Ghz Centrino.

/ datapappan
by datapappan
Sun Jan 15, 2006 9:01 am
Forum: Fans and Control
Topic: Feedback on my cooling design?
Replies: 5
Views: 3015

1. Any kind of duct will cause noise. Unless you really need to direct the air flow, like for a HS, ducts are bad. 2. HDDs usually only requires any airflow, just to change the ambient air - they work very well passively, not sure if this applies to multiple setups like yours, but they only put out ...
by datapappan
Thu Jan 12, 2006 3:59 am
Forum: Notebook Systems
Topic: Fan Control software for Thinkpads here
Replies: 3
Views: 5005

Fan Control software for Thinkpads here

The CPU fan was driving me nuts (as always), searched the internet and found this handy little app: Shimodax Fan Control It apparently has been extensively tested by users of Thinkpad, see this forum thread: Shimodax' thread @ thinkpads.com , Just put it on my own laptop and CPU runs fanless @ 48 de...
by datapappan
Mon Jan 09, 2006 5:08 am
Forum: Cases and Damping
Topic: Tech Fabrication - Passive case
Replies: 5
Views: 5090

A beauty. Expensive, but a beauty.

/datapappan

PS. It even has an optional 7" touch-screen for a mere $475!
by datapappan
Sat Jan 07, 2006 7:40 am
Forum: Cases and Damping
Topic: Which is most important: Absorber, Barrier, or Damper?
Replies: 9
Views: 5795

My experience is that aluminum can benefit greatly from damping, i.e. putting a heavy layer of flexible material on the case covers. It's amazing how resonance can make sound - it's best illustrated if you try tapping the case ever so lightly in the "dead" of night. Secondly, you will have airborne ...
by datapappan
Thu Jan 05, 2006 12:48 am
Forum: Fans and Control
Topic: zm-mfc1 should i buy this fan controller?
Replies: 4
Views: 2571

I have the Zalman, and as per above, it only adjusts down to 50%, and the feedback on rpm is not very good (flickering LEDs). But, it's rigid and has several cables, among which two have an extra wire for the rpm signal, which you can plug in to your MB. I have two suggestions: 1. This has four knob...
by datapappan
Wed Jan 04, 2006 8:20 am
Forum: Fans and Control
Topic: Which fan control?
Replies: 6
Views: 3140

I have the Zalman, som issues are: - Only goes down to 50 % i.e. 6 V - Knob only effective in two-thirds of the angle, i.e. first third all give 12 V (this due to resistor values around the 7815 voltage regulator are 600 for the 'steady' and 900 for the pot - go figure). - Blue leds indicate fan mov...
by datapappan
Tue Jan 03, 2006 6:49 am
Forum: CPU Cooling
Topic: Defective Freezer 4?
Replies: 5
Views: 2795

I broke my Freezer 4 fan, don't know how. I had just "soft mounted" it by placing foam between the fan frame and the fins, and also weighing down the frame with rubber slabs. It cut the noise it was making, the noise initially probably coming from vibration amplification via the MB. Luckily i look i...
by datapappan
Thu Dec 29, 2005 2:04 pm
Forum: CPU Cooling
Topic: Hey, HSF question.
Replies: 5
Views: 2418

Depending on your system, I suggest a semi-passive solution - buy the AC Freezer, drop the fan, and duct to your PSU á la Bluefront. Works wonders for me. Requires a bottom-fan PSU though, and perhaps a not too hot CPU.

/ datapappan
by datapappan
Tue Dec 27, 2005 1:06 am
Forum: CPUs and Motherboards
Topic: DFI Lanparty + Freezer 4 (as "NB" cooler)
Replies: 7
Views: 4088

That was a real bummer, why did they put the NB there? Is this the same for other PCI-e cards as well? I have a Freezer 4 at home, I'll post the measures when I get there, but I think the base is some 6-7 mm. But then the heatpipes goes straight up from there so I don't think you have the option of ...
by datapappan
Mon Dec 26, 2005 2:04 pm
Forum: System Advice / Troubleshooting
Topic: RAM errors and HDD temp
Replies: 3
Views: 2043

I've had crashes too when tesing RAM, Aida was the software. Memtest was OK. PC sometimes won't wake when in sleep mode, not sure if it's related.

/ datapappan
by datapappan
Mon Dec 26, 2005 11:05 am
Forum: CPU Cooling
Topic: Acceptable temperature levels for a P4 2.4Ghz cpu
Replies: 6
Views: 3530

I have a P4 2.4 A (Northwood, FSb 533), temps are 48/58, no issues.

/ datapappan
by datapappan
Tue Dec 20, 2005 9:07 pm
Forum: Power Supplies
Topic: PSU fan installation
Replies: 1
Views: 2137

It won't light up, the melting point of wire plastics is about 150C, I hope you keep your PSU below that. (I've seen drippings inside my PSU when running it really hot, say 80C, which seems to come from electronic components, not sure if it's from those copper soils or the capacitors - anyways your ...
by datapappan
Tue Dec 20, 2005 3:31 am
Forum: CPU Cooling
Topic: XP90 duct idea COMPLETED with pics
Replies: 26
Views: 12944

Heat from CPU to PSU: In the normal setup, the CPU is taking your case temped air and pushing it through the heat sink - this now warmed up air is mixed with the rest of the air inside the case, which in turn is continually refreshed with "cool" outside air. This is a semi-stable state, which will f...
by datapappan
Mon Dec 19, 2005 12:18 pm
Forum: Power Supplies
Topic: Using voltage regulator to limit fan speed?
Replies: 3
Views: 1764

Sure you can! Bear the following in mind: 1. Slower fans means hotter components. 2. Hotter doesn't always mean too hot. 3. What is too hot? This has been argued a lot, e.g. where to measure PSU temp etc. My reasoning is this: the manufacturer has chosen the fan according to a max. operating temp., ...
by datapappan
Mon Dec 19, 2005 12:17 am
Forum: CPU Cooling
Topic: XP90 duct idea COMPLETED with pics
Replies: 26
Views: 12944

My opinion: certainly will not reduce noise. Explanation: A duct will always impede air flow, meaning for the same air flow, you need a higher rpm on the fan. The countermeasure would be to use cooler air, to maintain the same component temp @ the same rpm. In this case I see no ducting to cooler a...
by datapappan
Fri Dec 16, 2005 3:37 am
Forum: CPU Cooling
Topic: Passive HS misconceptions
Replies: 14
Views: 5706

Passive=needs no forced air flow. This should mean you're left with only self-induced heat convection. Of course this heat then needs to be evacuated, or you get heat buildup. Point is, putting a passive component in free air should make it function according to spec. Cf. the NB, it's speced at ambi...
by datapappan
Thu Dec 15, 2005 8:47 am
Forum: Power Supplies
Topic: What exactly does "coil whine" sound like?
Replies: 3
Views: 3316

Tricky question, I have coil whine mostly when PC has been on for some time, and at low loads (cf. IE scrolling noise). As above poster, probably PSU, might be the combination, or just a 'faulty' shipping. Also, could be, as I think in my case, wear and tear after long periods of heat. Sometimes you...
by datapappan
Thu Dec 15, 2005 8:30 am
Forum: Fans and Control
Topic: Maybe a very dumb question
Replies: 4
Views: 2306

No FUBAR from just unplugging, but twiddling with fan header splitters and accidently ground the 12V pin burnt one of my MB headers, but I still have three left, so I'm OK.

/ datapappan
by datapappan
Wed Dec 14, 2005 2:02 pm
Forum: Cases and Damping
Topic: "Short" case for mATX boards ?
Replies: 3
Views: 2463

You probably can't go much shorter than that. The Aria has a proprietary PSU, which makes the case 15 mm shorter than the Aspire X-Qpack (www.aspireusa.net) which can take a standard ATX PSU. This length plus the length of the optical drive will probably determine minimum length.

/datapappan
by datapappan
Mon Dec 12, 2005 12:20 pm
Forum: Fans and Control
Topic: Looking for a fan control circuit that does this...
Replies: 13
Views: 6883

Check for ideas at www.cpemma.co.uk

/ datapappan
by datapappan
Sun Dec 11, 2005 12:49 pm
Forum: The Silent Front
Topic: HELP: I can't get rid off coil noise {buzz}!!!
Replies: 19
Views: 15522

As per above, seems hard to get rid of, usually a "bad" combination of hardware will make PSU or MB to buzz (I searched SPCR and Goooooogle a lot). Have the same prob on and off (MSIE scroll), my preliminary conclusion is when PSU runs hot it will buzz. Have not yet tried damping coils with silicone...
by datapappan
Wed Dec 07, 2005 5:32 pm
Forum: Fans and Control
Topic: Possible stupid question about SpeedFan and FanMate...
Replies: 13
Views: 4684

No Q:s are stupid. What is your real Q? In order to answer you have to explain more. I'm guessing you are controling the fan via SpeedFan, and also have the fan hooked up to a FanMate. So what are the figures from SpeedFan? Usually you set up a minimum speed, which in turn translates in to a voltage...
by datapappan
Mon Dec 05, 2005 9:43 pm
Forum: System Advice / Troubleshooting
Topic: Where are the LM99 chip temp sensors on speedfan monitoring?
Replies: 8
Views: 4503

A guess: graphics card.
by datapappan
Sun Dec 04, 2005 11:13 am
Forum: Fans and Control
Topic: Controlling fans
Replies: 9
Views: 4552

No, Speedfan doesn't necessarily do PWM, it depends on your MB. It hijacks th MBs ability to control fan output, which usually is done first via PWM to get the full 0-12Vrange, and then attenuates the signal with capacitors to smooth it - in essence 0-12V voltage regulation with low losses.
by datapappan
Fri Dec 02, 2005 2:25 am
Forum: Cases and Damping
Topic: CPU/PSU compartment
Replies: 0
Views: 870

CPU/PSU compartment

Finally found a good setup for keeping noise and temperatures down. I recently had to buy a new PSU, and decided on the FSP 350-TH with bottom 120 fan. Tried first with using the PSU as an intake towards the HS (fan dismounted on HS), but temps skyrocketed. Apparently my bottom placed case fan was c...
by datapappan
Wed Nov 30, 2005 1:22 pm
Forum: Fans and Control
Topic: Controlling fans
Replies: 9
Views: 4552

Depends on how you're gonna use it. Controllers that ramp the speed can give annoying revving up and down. Temperature control with threshold temp sometimes does not have the proper range (I have BIOS Fan EQ that works with 60% and 100%, I would like it to go down to at least 40%). Rheobus/Fanmate w...
by datapappan
Wed Nov 30, 2005 4:29 am
Forum: The Silent Front
Topic: SPCR Microphone Calibration
Replies: 10
Views: 5417

I'd love to have a 130+ dB engine under my aluminium hood! Or, we're not talking monster trucks here? Sorry, wrong forum, heading over to www.tinnitus.com.

/ datapappan