Search found 238 matches

by Operandi
Sun Sep 19, 2010 7:09 pm
Forum: CPUs and Motherboards
Topic: Do 4 Pin PWM Fan Headers Need PWM Fans to Control Speed?
Replies: 4
Views: 1457

Of course the CPU fan is PWM (its in the AM3 specification) but so is "System Fan 1". The odd thing is I downloaded the manual for the Gigabyte 870 board and while sys_fan1 is 4 pins the manual has the 4th pin (the PWM pin) labeled as "reserve" instead of "control" as it is on the CPU fan header. Th...
by Operandi
Sun Sep 19, 2010 2:13 pm
Forum: CPUs and Motherboards
Topic: Do 4 Pin PWM Fan Headers Need PWM Fans to Control Speed?
Replies: 4
Views: 1457

I was looking at this Asus AMD 870. http://www.newegg.com/Product/Product.aspx?Item=N82E16813131647 I downloaded the manual but it didn't say anything about 3 pin fans on the system header so thats not much of a help. Maybe I'll check out the Gigabyte 870 board, I've had good luck with their boards ...
by Operandi
Sun Sep 19, 2010 11:56 am
Forum: CPUs and Motherboards
Topic: Do 4 Pin PWM Fan Headers Need PWM Fans to Control Speed?
Replies: 4
Views: 1457

Do 4 Pin PWM Fan Headers Need PWM Fans to Control Speed?

I'm looking to build a new system and most of the boards I am looking at now have a 4 pin PWM header for the main system fan. Am I going to need a PWM fan to control the speed on this header? I was planning on reusing my Lian Li PC6070 which has two 80mm exhaust fans and I'd rather not have to track...
by Operandi
Sun Aug 09, 2009 12:05 pm
Forum: CPU Cooling
Topic: Zalman's new CNPS10X Quiet (not extreme)
Replies: 3
Views: 2137

Hopefully its good, too bad the fan is non PWM though.

Though it may not be that much of a loss since most of the Zalman fans I've heard lately have too much motor noise anyway.
by Operandi
Sat Aug 08, 2009 5:45 pm
Forum: CPUs and Motherboards
Topic: 785G Board for HTPC
Replies: 0
Views: 1012

785G Board for HTPC

I'm looking for a 785G board for my forth coming HTPC rebuild. I'm looking for the following features. -DDR3 support: I don't want to invest anything into DDR2 at this point. -Sideport RAM: May do some light gaming. -Support for Speedfan. -ATX or mATX, case is Lian Li C30I. My first inclination is t...
by Operandi
Sat Aug 08, 2009 5:25 pm
Forum: CPU Cooling
Topic: HS/F for Athlon II based HTPC
Replies: 0
Views: 630

HS/F for Athlon II based HTPC

So I’m going to rebuilding my HTPC (currently based on an old Athlon XP 2800) and am looking at a Athlon II + 785G combo. I’ve used the stock Phen II HS/F with success for quiet builds but I don’t know if the Athlon II gets the same heatsink (I heard it doesn’t), anyone have any experience w...
by Operandi
Sun Jan 25, 2009 4:20 pm
Forum: CPUs and Motherboards
Topic: Recommended Motherboards: From a Silence Perspective 1.1
Replies: 163
Views: 212663

I was thinking this thread has perhaps outlived it's usefulness since many of the issues that this thread address have largely being eliminated. Almost all motherboards are passively cooled and since socket 775 and AM2 all boards have PWM control over the CPU fan. In my opinion those are most import...
by Operandi
Mon Nov 24, 2008 8:53 pm
Forum: Fans and Control
Topic: Looking for reasonably quiet 92mm 2500 RPM fan
Replies: 31
Views: 9517

Let's review. Looking for a fan for a ~2500 RPM fan for PSU. Panflo and Delta 92mm 2450 RPM fans buzz, but all existing fans do not. Need to find out why and how to resolve it. Several posters suggest it could be due to PWM control. There's no PWM. So what else could cause a fan to buzz, but only a...
by Operandi
Mon Nov 24, 2008 2:08 pm
Forum: Fans and Control
Topic: Looking for reasonably quiet 92mm 2500 RPM fan
Replies: 31
Views: 9517

Is the Delta buzzing like the Panaflos or is it bearing noise? If its buzzing from low freq PWM then it should be absent when you run it at full speed from 12v. Bearing noise will always be present. I have a 80mm Sanyo Denki sitting on my Alpha heatsink, its by far the quietest ball baring fan I've ...
by Operandi
Fri Nov 14, 2008 10:31 pm
Forum: Fans and Control
Topic: Buzzing when undervolting 92mm Rexus Panaflo mid speed fan
Replies: 5
Views: 2434

Re: Buzzing when undervolting 92mm Rexus Panaflo mid speed f

After testing and using the fan, I noticed what may have appeared to be vibrations transferred to the case a first, but it turned out to be motor buzz. Lowering the voltage would cause the motor to buzz. The lower the voltage, the greater the buzz intensity, to the point that it would drive me craz...
by Operandi
Wed Nov 21, 2007 10:25 am
Forum: CPUs and Motherboards
Topic: Recommended Motherboards: From a Silence Perspective 1.1
Replies: 163
Views: 212663

MSI X38 Diamond, Platinum added.
by Operandi
Sat Oct 27, 2007 9:19 am
Forum: CPUs and Motherboards
Topic: Recommended Motherboards: From a Silence Perspective 1.1
Replies: 163
Views: 212663

The board does have fan headers that you can undervolt through the BIOS and the gigabyte "eztune" software. However, I would recommend against using these, on any motherboard. The reason is that most (all?) MB fan headers use swtiching voltage regulation to control the fan speed. This causes an aud...
by Operandi
Sat Oct 27, 2007 9:07 am
Forum: CPUs and Motherboards
Topic: Recommended Motherboards: From a Silence Perspective 1.1
Replies: 163
Views: 212663

Alright, sorry for not updating this thread sooner :( . I've been getting into the hobby of DIY speaker building which has consumed most of the little free-time that I have.

Anyway... MSI K9AG Neo2-Digital, Abit AN-M2HD, Abit IP35 Pro, and XFX 650i Ultra added.
by Operandi
Sat Oct 27, 2007 9:02 am
Forum: CPUs and Motherboards
Topic: Recommended Motherboards: From a Silence Perspective 1.1
Replies: 163
Views: 212663

can you confirm what is the fan voltage control range? i read somewhere else on this forum that the lowest voltage that can be acheived is 8V and not 5V as mentioned by you. oh and I am actualy interested in a dynamic range of 4V to 12V, if that is possible. As I mentioned above, if you are interes...
by Operandi
Fri Jun 15, 2007 4:14 pm
Forum: CPUs and Motherboards
Topic: HTPC: AMD 690G board recomendations
Replies: 11
Views: 6784

Re: There is another...

derekva wrote:...Sapphire board...unfortunately you lose both DVI and SP/DIF (you still have HDMI, though):

SAPPHIRE PE-AM2RS690MH

However, it is only $70.00. :D

-D
Also no 1394 which is a requirement for me.
by Operandi
Fri Jun 15, 2007 8:57 am
Forum: CPUs and Motherboards
Topic: HTPC: AMD 690G board recomendations
Replies: 11
Views: 6784

If I had known they existed I would have checked out the nVidia 7050 boards, oh well :?.

In the end I went with the Gigabyte GA-MA69G-S3H, full ATX AMD 690 board. It seems pretty solid and has the features I need/want, hopefully all goes well.
by Operandi
Fri Jun 15, 2007 8:38 am
Forum: CPUs and Motherboards
Topic: Solid Polymer Capacitors vs Electrolyte Capacitors
Replies: 9
Views: 5301

That tutorial's a bit general; info specific to the solid aluminium types from Dubilier . Pros seem to be Longer life Higher operating temperature - 125C possible compared to 105C from the usual 'wet' aluminium Lower ESR - makes for a "faster" capacitor Open-circuit failure mode With microprocessor...
by Operandi
Sat Jun 09, 2007 7:24 am
Forum: CPUs and Motherboards
Topic: HTPC: AMD 690G board recomendations
Replies: 11
Views: 6784

I'm not sure what the deal is but it looks like nobody has any stock of the Sapphire HDMI PI-AM2RS690MHD. I called a couple of places and it doesn't sound like they'll be getting them back in either.

So it's either the Biostar or skip the 690 all together.
by Operandi
Wed May 30, 2007 6:25 pm
Forum: CPUs and Motherboards
Topic: HTPC: AMD 690G board recomendations
Replies: 11
Views: 6784

ew. in the world of solid caps, I didnt think a high end manufacturer would be using big thumper blackies still. that's odd. Well electrolytes are fine (and actually have a few advantages over solid caps) as long as they are high quality quality. People see solid caps and associate them with qualit...
by Operandi
Wed May 30, 2007 8:48 am
Forum: CPUs and Motherboards
Topic: HTPC: AMD 690G board recomendations
Replies: 11
Views: 6784

After looking around a bit more I've come across the Sapphire HDMI PI-AM2RS690MHD, which looks like a very interesting board.

Better features then the Asus and Biostar, which is a plus. Though it looks like the Biostar may be built a bit better with the use of solid caps around the CPU.
by Operandi
Mon May 28, 2007 5:40 pm
Forum: CPUs and Motherboards
Topic: HTPC: AMD 690G board recomendations
Replies: 11
Views: 6784

HTPC: AMD 690G board recomendations

I'm looking for a solid AMD 690G based board with HDMI for use in an HTPC environment. Besides the prerequisite HDMI output, good fan control options and just all around general quality are the important factors. Currently I'm looking at the Biostar TA690G and Asus M2A-VM HDMI. http://www.newegg.com...
by Operandi
Mon Apr 30, 2007 7:28 am
Forum: CPU Cooling
Topic: Lapping your IHS to increase cooling? Hah, wrong!!!
Replies: 14
Views: 5293

If I read it correctly this is about the interface between the CPU core and heat spreader, not the heat spreader to the heatsink so this has nothing to do with lapping at all.
by Operandi
Mon Apr 16, 2007 8:35 pm
Forum: CPUs and Motherboards
Topic: Recommended Motherboards: From a Silence Perspective 1.1
Replies: 163
Views: 212663

MSI G965MDH added along with a some minor edits.
by Operandi
Mon Apr 16, 2007 8:05 pm
Forum: Silent Storage
Topic: hard disk life if lying in dormant state...
Replies: 30
Views: 13315

This seems a lot more risky than just burning a copy of the CD and storing the original in a safe place. even original CDs and DVDs start to degrade over time. i've read that early adopters of CDs are reporting that their disks (over 20 years old now...) are starting to degrade. the silver layer st...
by Operandi
Fri Apr 06, 2007 10:30 am
Forum: Newcomers Briefing Room
Topic: Motherboard capable of changing fanspeeds?
Replies: 7
Views: 4133

Re: Motherboard capable of changing fanspeeds?

According to Gigabyte's page your board supports the BIOS level "Smart Fan" so you should be able to get at least control over the CPU fan (though you may need a 4-pin PWM fan). As far as control the system fan headers goes thats up the manufacture if they choose to implement that or not. It's possi...
by Operandi
Thu Mar 22, 2007 10:14 pm
Forum: Power Supplies
Topic: Seasonic M12 500W is buzzing
Replies: 13
Views: 5013

It's coil whine, as I posted over in your Anandtech post.

It's most likely an interaction between the Seasonic and the video card and/or motherboard.

What exactly are you powering with the Seasonic? If it's a lite load you might have better luck with a lower wattage S12.
by Operandi
Thu Mar 15, 2007 8:14 am
Forum: CPU Cooling
Topic: Zalman 3100+? Passive?
Replies: 7
Views: 2462

I've cooled a 1GHZ Duron passively with the 3100. It stays under 50C but it dose have a 120mm Yate Loon in close proximity so I'm not sure how it would fare with less air flow.
by Operandi
Fri Mar 09, 2007 7:37 pm
Forum: CPU Cooling
Topic: NEW RELEASE: Thermalright IFX-14
Replies: 17
Views: 8485

CyberDog wrote:I think that those are for looks. But I couldn't find that on thermalright homepage?
They could be there to accommodate the fan clips for various fan sizes and configurations.
by Operandi
Sun Mar 04, 2007 8:29 pm
Forum: CPU Cooling
Topic: Quiet heatsink/fan for Socket A?
Replies: 15
Views: 3955

The CNPS3100+ comes with an inline resistor you can use to drop the voltage down to 7 or 9v (I forget which). Of even better if you motherboard has fan control you can use that to set the desired min/max speed. Also keep in mind "quiet" is subjective even here. Personally I think the Zalman 92mm fan...
by Operandi
Sun Mar 04, 2007 9:27 am
Forum: CPU Cooling
Topic: Quiet heatsink/fan for Socket A?
Replies: 15
Views: 3955

The Zalman CNPS3100+ should do the trick.

http://www.sharkacomputers.com/cnps3100plus.html