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Intel vs. AMD
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crowy
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5. July 2006 @ 01:06 |
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@ sammorris,
I think you misunderstood me.
If you have a look at the chart everything that contains a motor uses 12v.Although those same things also use 5v,that is for the digital circuitry contained therein.
If the facts dont fit the theory, change the facts." -- Albert Einstein |
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AfterDawn Addict
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5. July 2006 @ 02:49 |
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Hence why I said that's not strictly true, rather than not true at all! I never disagreed with your motors are 12V argument, because that's correct, I just took issue with "5V powers the digital circuits" some yes, but not all!
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crowy
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5. July 2006 @ 03:10 |
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@Sammorris,
No worries!I can't even remember how we got started on this!!LOL
If the facts dont fit the theory, change the facts." -- Albert Einstein
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AfterDawn Addict
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5. July 2006 @ 03:15 |
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You and me both!
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AfterDawn Addict
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5. July 2006 @ 04:08 |
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i might be off base here just heard about this, but has anyone heard of the new towers? BTX instead of ATX... suposivly to be better tower has a air intake in the front then sucks out the back. anyone heard of this or am i just way behind on this?
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AfterDawn Addict
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5. July 2006 @ 05:23 |
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I've heard of this and don't really give much of one about it. You can set up an ATX case pretty much how you like, the only quibble I have is that mobos are always mounted on the right, and I'd prefer the left.
You can do anything with regard to cooling with ATX if your imagination allows!
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5. July 2006 @ 11:13 |
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crowy,
I've been looking at the PSU Calculator and find that according to it my D940 draws 173 watts at 3.8 at 1.375v. At 3.2 it draws 130 watts at 1.3v.
One of the things I've noticed in regard to power supplies is that every failure that's been reported here and the Hounds lately have been top rated brands like Thermatake and Antec, that were brand new. One Antec even went up in smoke and flames! While I buy cheaper but decent quality ones and have never gotten one that was bad. When I said I was thinking I would buy an Aspire TurboLink 500 Watt PS, which was on sale at the time for around $40 (sorry, can't remember exactly), I was roundly criticised with coments like "I wouldn't buy a $40 PS" My previous PS was a PowMax Demon Silver Chrome 480 watt PS that was around $30. After more than a year it still works fine.
I designed and built a rather sophisticated PS checker that cost me about $500 to build. It's heart is a rather large Variac, which is a wire-wound variable transformer with a big knob on the top of it, that's a little larger than a 50 DVD cake box. It has 2 1000 watt meters for each 12v rail and 1 meter for 5v and 1 for the 3.3v. As you increase the resistance it increases the load. It also has switches to isolate a particular line including splitting the 12v rails. Both my cheap power supplies are within spec. my 500 shuts down at 503 total watts while my 480 shuts down at 478 watts, and it's a year old! I don't use digital readouts as I prefer analog gauges because they are more linear and easier to read what you are looking at. The gauges have "tell-Tales" so I know exactly at what point they reach overload.
The funniest thing is that If I had gone by the reviews, I would have run away from either of the power supplies I bought. I took the Aspire apart and was very impressed with the quality inside of it for the price! Someone even posted a rating list of power supplies and both of them I own are in the "Not Recomended" section.
Same thing with cases. aabbccdd's case is an expensive Lian-Li and he's having problems getting the heat out of the case, while my cheap $30 or so case does an excellent job of cooling with my 20% overclocked D940. Temps right now are 42 and 35C. The CPU temp is that high because I'm running a folding program in the background. If I turn the folding program to pause, the CPU temp drops to 30C. I'm begining to think that the best way to go is buy and inexpensive case in a layout you like, without PS or fans and put high CFM fans and a 2 fan PS in it. Hey, it works very well for me and is nice looking to boot!
Happy Computering,
theonejrs
GigaByte 990FXA-UD5 - AMD FX-8320 @4.0GHz @1.312v - Corsair H-60 liquid CPU Cooler - 4x4 GB GSkill RipJaws DDR3/1866 Cas8, 8-9-9-24 - Corsair 400-R Case - OCZ FATAL1TY 550 watt Modular PSU - Intel 330 120GB SATA III SSD - WD Black 500GB SATA III - WD black 1 TB Sata III - WD Black 500GB SATA II - 2 Asus DRW-24B1ST DVD-Burner - Sony 420W 5.1 PL-II Suround Sound - GigaByte GTX550/1GB 970 Mhz Video - Asus VE247H 23.6" HDMI 1080p Monitor
 This message has been edited since posting. Last time this message was edited on 5. July 2006 @ 11:14
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AfterDawn Addict
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5. July 2006 @ 11:16 |
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Hmm, I can't say I vouch for that. The cooling offered by my ridiculously cheap SuperFlower case was pretty good in all respects, but the NZXT Lexa is better at it (not quite as good value in that sense, but every bit overall). After my Qtec brutally destroyed some of my old rig, I'm not buying a Cheap PSU again. Touching wood, you don't hear of too many Hipers packing up...
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5. July 2006 @ 12:07 |
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sammorris,
Quote:
Hmm, I can't say I vouch for that.
For sure! You do have to check out the design. It has to have provisions to be able to install decent fans and have decent air intake. These days a couple of cheap 80mm fan just aren't going to do it. I wouldn't buy a case that didn't have air intakes on the right cover. Basically you wouldn't want to buy any case that didn't have provision for anything less than a 120mm on the back. My case has that and I haven't seen any reason to put an intake fan in front, although it has provision for it. I'm also of the belief that a side fan is something you need as well. My 80mm center mounted window fan blows cool air almost directly on the memory and into the airflow of the CPU cooler and rear fan. My temps say that I've got it right. Maybe I was just lucky, but because of the work I do with air turbines I know a lot about air flow characteristics and air flow in general.
I'll give you a good example. You always want the side fan to be a lower CFM than the exhaust fan. Why? To insure air flow from the rest of the case. If they were the same CFM you would have pockets of slow moving air inside portions of the case that would cause hot spots and consequently heat being trapped where you don't want it. I've run an infared thermal probe all over the inside of my case and the temp only goes up above 35-37C when you get near the memory, cpu or voltage regulator. Since that's what generates the most heat, my set-up seems to be pretty efficient.
Take your case. I can see that it was well designed in terms of airflow and it's the most beautiful case I've ever seen. Trouble is, most people buy what looks nice rather than taking a good look at the design inside. Some of these Alien looking ones are pretty but more effort went into their looks than their functionality. Your case seems to have succeeded at both!
Happy Computering,
theonejrs
GigaByte 990FXA-UD5 - AMD FX-8320 @4.0GHz @1.312v - Corsair H-60 liquid CPU Cooler - 4x4 GB GSkill RipJaws DDR3/1866 Cas8, 8-9-9-24 - Corsair 400-R Case - OCZ FATAL1TY 550 watt Modular PSU - Intel 330 120GB SATA III SSD - WD Black 500GB SATA III - WD black 1 TB Sata III - WD Black 500GB SATA II - 2 Asus DRW-24B1ST DVD-Burner - Sony 420W 5.1 PL-II Suround Sound - GigaByte GTX550/1GB 970 Mhz Video - Asus VE247H 23.6" HDMI 1080p Monitor
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crowy
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5. July 2006 @ 12:36 |
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@theonejrs,
Your doing well to get those specs from those psu's.
Usually you need to deduct 30% from the rated wattage of any given power supply to allow some headroom as most psu's are over rated by the manufacturers although there are exceptions such as hiper who under rate there psu's.IE: If you buy a psu thats rated @500w, then 350w is what you should comfortably expect .There are some cheaper brands that are exceptional value for money and there are some more well known brands that are over rated and under performing and some that are just down right dangerous. Also over time,capacitors age,so your psu's initial 500w rating will gradually decline.
Some of these PSU's are dangerous to your system, some are just sub-standard,
however NONE can be recommended, for high performance or over-clocked systems.
This guide could be used as a rule of thumb when considering buying a psu but remember there are people out there with some of these power supplies that have had no trouble with them:
http://www.dfi-street.com/forum/showthread.php?t=29248
If the facts dont fit the theory, change the facts." -- Albert Einstein
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AfterDawn Addict
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5. July 2006 @ 12:38 |
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You mean the other way round? You can get 500 from a 350, not the reverse!
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crowy
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5. July 2006 @ 12:50 |
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@sammorris,
No,I mean 350 from a 500.This is just a rule of thumb to allow for psu manufacturers that over rate there psu's.Im talking 350 watts @100% duty cycle.As you can see from theonejrs post,his 480 shuts down @478.So if you bought that supply expecting to draw 480 watts @100% its not going to work.Plus when you start really loading a power supply up towards it's maximum rating,thermal cutouts start happening and off goes your box.So deduct 30% from your psu's rating and you should be able to draw that wattage 24/7.
If the facts dont fit the theory, change the facts." -- Albert Einstein
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AfterDawn Addict
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5. July 2006 @ 12:52 |
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Yeah, I don't need 580W here.
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aabbccdd
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5. July 2006 @ 13:06 |
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Asus True-Power 550 watt here seems to be just fine
oh BTW i got my temp problem fixed this is how the Lian LI is suppose to be setup ,both the case fans (front and rear) pull air into the case ,the Zalman blows air to the front of the case and theres a side fan that blows air on the video card and dissipating the air heres the link to explain it and pics
http://www.lian-li.com/Product/Chassis/Middle_Tower/V_Cool/M_V_C_...
This message has been edited since posting. Last time this message was edited on 5. July 2006 @ 13:13
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Moderator
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5. July 2006 @ 13:40 |
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aabbccdd,
I noticed earlier you mentioned your 7900 ran hot. My 6800GS sometimes reached 83ºC but after putting an Arctic Cooling Accelero X1 on it I haven't seen the temps go past 65ºC even after a couple hours of FEAR or Quake 4. It was pretty easy to install, is dead silent and only ran me $32 but I see newegg has a $10 instant savings on it right now,
http://www.newegg.com/Product/Product.asp?Item=N82E16835186001
My killer sig came courtesy of bb "El Jefe" mayo.
The Forum Rules You Agreed To! http://forums.afterdawn.com/thread_view.cfm/2487
"And there we saw the giants, and we were in our own sight as grasshoppers, and so we were in their sight" - Numbers 13:33 |
AfterDawn Addict
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5. July 2006 @ 13:44 |
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Yeah I heard the Acceleros are good. However, I'm actually surprisingly satisfied with the stock X1900 cooler on my XT despite people saying it's loud and doesn't cool well. The fact is, it is quiet and does cool well if you have decent case ventilation, so for me, it's great!
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aabbccdd
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5. July 2006 @ 13:54 |
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This message has been edited since posting. Last time this message was edited on 5. July 2006 @ 13:56
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Senior Member
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5. July 2006 @ 13:57 |
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So instead of air in the front, out the back, with help in the middle from the side fans like a normal expected set-up, you had to reverse engineer and dig deeper into the support FAQ's. Nice case, but I hate unexpected surprises. I havent hooked up my front panel Firewire due to the fact it came as 12 seperate wires (not labeled with the same names as my board manual specifies) instead of wired to the clip. My Soundblaster has a port so it doesnt bother me functionally, but theres always that little voice in the back of your head saying its not done yet. your work is not complete.perfect, everything must be perfect.
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Moderator
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5. July 2006 @ 14:02 |
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aabbccdd, it's actually not a case fan. It replaces the stock hsf on the vid card :)
My killer sig came courtesy of bb "El Jefe" mayo.
The Forum Rules You Agreed To! http://forums.afterdawn.com/thread_view.cfm/2487
"And there we saw the giants, and we were in our own sight as grasshoppers, and so we were in their sight" - Numbers 13:33
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aabbccdd
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5. July 2006 @ 14:09 |
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ok cool i didnt click the link lol ,yeah that will work i belive ,thanks for the info. its ordered.
was it hard to put on? looks like it installs on my card fine (NVIDIA Geforce-7800 GTX KO ACS-3 Edition)
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Moderator
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5. July 2006 @ 14:12 |
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Lol!
No it wasn't hard at all. Just keep track of those little screws!
My killer sig came courtesy of bb "El Jefe" mayo.
The Forum Rules You Agreed To! http://forums.afterdawn.com/thread_view.cfm/2487
"And there we saw the giants, and we were in our own sight as grasshoppers, and so we were in their sight" - Numbers 13:33
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aabbccdd
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5. July 2006 @ 14:16 |
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thanks for the info Nephilim thats perfect!!!! its ordered
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AfterDawn Addict
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5. July 2006 @ 14:18 |
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Yep, all too often I end up scrabbling round on the carpet! People moan and grizzle about two-slot GPU coolers, I love it, less case ventilation issue, or none at all!
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aabbccdd
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5. July 2006 @ 14:22 |
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yeah Deadrum33 its design is def different but the case is vented everywhere around it so it makes sence. my system temps are down running at 46c idle and with that fan Nephilim linked me it will even be better. great info here!!
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FIHSNERD
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5. July 2006 @ 14:37 |
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