COOLERMASTER Cooler Master GX450 Power Supply: From a red star failure incident to talk about the importance of power purchase and power supply
The beginning of the story is actually a tragic story like this. This day I was galloping on the continent of Azeroth as usual. At this time evil evil spells attacked my computer and was full of degraded smells. The thick smoke rolled out of my computer. At this time, my feeling was that the big event was not good. Then my brain fills up the picture like this.
There is this!
Well, I say, in fact, because the computer's power supply is selected because of the quality of the young and ignorant choice of power, but off, causing the power to burn even close to other hardware and the whole martyrs wall.
At this moment, my heart sang quietly:
The red star shines (prepare ~ start!), ripples are not fried square
The game will be a red star, destroy the blast I'm good at
The game will be a bright star, destroying the world I'm strongest!
In the night, the red star shines dark
In winter, the red star sparks summer
In the fight, the Red Star flashes the enemy
On the journey, the red star sparked the road.
The red star shines, and ripples are not fried squarely
The game will be a red star, destroy the blast I'm good at
The game will be a bright star, destroying the world I'm strongest!
------------------------------------Minute------------- ----------secant------------ ----------------------------
First of all, the aftermath of the Red Star bomb detonation:
After the power supply is disassembled, there is still a large burnt smell. We can see that a magnetic induction coil in the low-pressure filter part has been completely blackened. This can also be seen as an evidence of this power ripple instability. During the Red Star explosion, my motherboard's on-board sound card and a hard disk were unfortunately sacrificed. Fortunately, my graphics card and CPU were spared. Thankfully.
In fact, from the nameplate, we can see that this game has a half-module power supply of the Red Star 500 is 80PLUS Bronze certified, and here you can first tell the valued friends that the 90PLUS certification is actually only a single aspect of the power conversion rate of the power supply. Certification, it does not directly reflect the power quality is good or bad, can only provide reference from one side to me. In other words we can understand this, that is, 80PLUS certified power supply is not necessarily a good power supply, there is no 80PLUS certified The power supply must not be a good power supply (PS: if some of the high-end of the thieves have passed 80PLUS Platinum but no bid does not mean that there is no)
After seeing the nameplate, we went back to the internal structure. Although the reputation of the Red Star bomb is outside, no matter whether it is a secondary EMI filter circuit, an active PUC, or a dual-transistor forward plus single magnetic amplification, the internal structure is not very similar. Bigger cutting corners, I think the problem is still on the quality of work and quality control.
After watching our Red Star Bomb, the next thing we need to play is our protagonist, the Cool Ghost Extreme GX450. According to the writing requirements of the evaluation, we calmly and slowly (I point to use the evaluation Zhang Aunt directly gives the sample request in accordance with the purchase reasons The appearance of the display and use of the experience in turn just right I do not bother to think of the format in accordance with the rules come on)
SRC+ dual-switch forward + active PFC+ synchronous rectification + DC-DC topology
Reason for purchase: When it comes to buying reasons, the first is that my power is blown, and I especially want to know if my other hardware is also hanging along with it. So I need to buy a suitable power supply. My configuration is E3 1230 V2 + Gigabyte H77. +GTX960 Plus 1 SSD and 1 HDD and several fans The TDP is calculated at 80W of maximum power consumption between 250W and 280W. I only need to select a power supply with a rated power above 350W. The first power source that came out of my mind when calculating this 350W power rating was it:
Delta [DELTA] Rated 350W NX350 Power [80PLUS Bronze / Full Voltage / 12CM Temperature Control Silent Fan / Support Topline / Three Year Warranty] 219 yuan The same price The best cost-effective Dachang power supply low price can be done 169- 179 Jingdong direct link to encyclopedia Delta's NX350 power unit is still relatively satisfactory, with 80PLUS bronze, using a full-day capacitor, input voltage 100-240V wide voltage, the length of the wire CPU power supply 55cm basically meet the small and medium chassis to go The requirements of the back line, plus the brand and JD's after-sales are good choices for many installed machines. And this power supply can often be purchased at a price of 159 yuan or so when JD engages in activities. The price is still pretty good. .
domestic
DELTA Delta NX350 desktop power supply (80Plus bronze / active PFC/350W) 159 yuan shipping (179-20) low-power bronze coupons with new low-cost, low power consumption platform is a good choice. DELTA Delta is a well-known power supplier foundry. This GamingSeries NX350 desktop power supply uses active PFC technology and is certified with 80Plus Bronze certification worldwide. The efficiency is 88% at 230V and 50% typical load. Rated power 350W, 12cm silent temperature control fan, 1 8pin (6+2) interface, matte shell fairy will die | 270 Comments 157 Favorites 82 Direct Links View Details But my heart told me that in the near future I would definitely not be satisfied with the performance of the GTX 960, and if you upgrade for example the GTX 1070 (because I use a computer to play games to go online and watch movies without too much work so the CPU is short There is no need for upgrading within the time, and the game is more and more to eat video cards.) Then the whole power consumption rises, I have to replace the power supply, so it's better to simply buy more power to facilitate the upgrade and leave more margin for the power supply. Therefore, the following power supplies are in my sight: (between 430-450W)
Huntkey rated 450W jumper450B power supply (80plus bronze / active PFC / wide voltage / intelligent temperature control) 269 yuan Huntkey Huntkey jumper450B desktop power supply, using a dual-transistor forward plus single magnetic amplifier topology plus active PFC is relatively stable The main capacitor is a 330μF/450V/85° capacitor manufactured by HEC. It meets the 80Plus bronze brand and achieves 86% efficiency at 50% typical load. Rated power 450W, dual 12V load up to 32A, complete secondary EMI, 12cm silent fan smart Jingdong direct link View Encyclopedia 
XFX rated 430W TS430 power supply (80PLUS Bronze / 3 year warranty / native flat line / support back line) 229 workmanship cheap DC-DC power supply Haiyun scheme Haiyun foundry Jingdong direct link 
Zhenhua (SUPER FLOWER) rated 450W iceberg Kingdee 450 combat version of the power supply (80PLUS gold / support back line / 5 year warranty) 339 yuan cheap 450W gold medal LLC power Jingdong direct link to encyclopedia 
Seasonic rated 430W S12II-430 power supply (80PLUS Bronze/Intelligent Temperature Control Quiet Fan/Support SLI/Support Topline) 329 yuan 80PLUS Bronze + Ultra-quiet Jingdong direct link View Encyclopedia 
CoolerMaster is rated 450W GX450 game power supply (80PLUS Bronze / SRC + DC2DC architecture / Japanese capacitors / five-year warranty) 299 yuan 5-year warranty SRC + DC-DC power supply program Japanese capacitors cost-effective! Jingdong direct link These several power supplies are my personally optimistic power supply for quality control and branding on this power, and can also be a small reference for valued friends, among which XFX's TS430 is also used by a computer in my home. Well, the main reason that led me to choose the cool power of the GX450 is:
Find
COOLERMASTER Cooler Master GX450 Bronze Power Supply 269 yuan value of friends broke the original: This product is currently in the Jingdong Mall special price to 299 yuan, can participate in 99 full reduction activities -30, with coupons, then you can be even lower, interested friends are not to be missed. Its structure is upgraded to SRC + synchronous rectification + DC-DC structure, lower ripple, while the full use of Japanese capacitors, higher stability. Five-year warranty. Unfortunately, it is only a bronze medal. Qiao Wei should be fine. Yongren| Value 35 Reviews 13 Collections 12 Direct Links View Details On the second day of my power-burning, it was shamelessly appearing in the SMZDM push in the list of candidate power supplies that exactly happened to you. Of course, this power supply is also the only SRC+DC-DC topological rectifier in the price range of 260. The program, full-day capacitors plus the most important 5-year warranty became the reason I chose this power supply.
The packaging is relatively simple, the instructor is printed in all directions with the Cool and Supreme LOGO and GX450 logo, the back of the power output curve and the side is the nameplate logo.
After unpacking, it was found that the power supply accessories are very simple: only the power supply, manual, screws, desiccant, and power cord, but the outer cushion of the power supply's air cushion is in place for power protection and is worth learning from other power suppliers.
then! I saw this scene
As you can see, the fragile stickers of the power supply have been broken. I previously saw a break in JD.com's comments. However, after carefully checking the traces of the power screw Connectors that were not screwed, they later hit JD. After-sales customer service and Cooler Master customer service confirmation after the registration break does not affect the warranty is considered to be let go, or else I ran the 5-year warranty is not the purpose of the soak ~
The interface of the 24pin board of the power supply is a snap-in design, which is also easier to operate than the slot design of many power supplies.
From the size point of view, Cooler Master GX450 is a full circle smaller than the old game power, this may also be due to the non-module design reasons.
Next is the display of the length of the wire, because my soul is more hot-spotted, so if you feel unwell due to clutter, you can skip it.
Chassis first horse tank in the tower chassis, you can see 8pinCPU power supply wire is not long only 55cm no way to look better backline, but the motherboard and graphics card power supply line length is very good, the design of the flat line can also make the back line 3. Spacers are easier to cover with side covers.
Speaking of using experience may be because the use of time is short, and the power supply itself is a use of computer components that have a relatively low sense of presence so the feeling is not much, more should be more psychologically more secure for the hardware, after all, the chassis has been With a red star bomb, I've been using it all thanks to my big heart. In my use, there was no inductive whistle in JD's comments, and the fan's sound was very quiet. Now it will feel good for more than ten days. And because my CPU + graphics card is only about 250W and can not measure the power limit.
Of course, in order to learn more about this kind of power supply, I also try to learn a little about this power supply related knowledge, and show it here. (Part of the picture from the network)
From the disassembled parts, we can see that the temperature-controlled fan uses the D12BH-12 dual ball fan from Taiwan Winner Wheel with parameters of (12cm, 12V, 0.3A, 2300rpm and 41dB).
The structure adopts SRC + Active PFC + Synchronous Rectification + DC-DC topology, but also in the evaluation is said to be pun + DC-DC, and this Cooler Master said that the difference between SRC and LLC where I can not tell why However, the use of DC-DC is more stable than that of single-magnification output.
The internal power supply is the primary and secondary EMI filter and filter circuit, followed by the active PFC circuit and then the double-forward forward topology, and then the DC rectifier DC2DC. What is the SRC power supply? Clear. However, the internal work of the entire power supply looks neat and the electrical components are relatively full or rather reassuring.
Personal views and opinions about power purchase: This is just a non-professional recommendation for me as a personal computer amateur. If there are mistakes, I would also like to study hard.
I want to start from several aspects of personal purchase power, and the first thing to do before making all aspects of choice is to determine the power consumption of the computer's own machine and the power consumption required for future computer upgrades; The first thing to do before power is to determine the power rating of your own power supply. In this respect, I only recommend 1 to 2 power supplies for each rated power.
300W or less:
Delta [DELTA] rated 250W Smart250 power supply [energy-saving mute / multiple protection/8CM silent fan / three-year warranty] 179 yuan manufacturers products, fairly reliable. Jingdong direct link 300-400W:
Delta [DELTA] Rated 350W NX350 Power [80PLUS Bronze / Full Voltage / 12CM Temperature Control Silent Fan / Support Back Line / Three Year Warranty] 219 yuan The same price The best price / price of the power of Dachang factory Jingdong direct link Encyclopedia 400-450W:
Seasonic rated 430W S12II-430 power supply (80PLUS Bronze/Intelligent Temperature Control Quiet Fan/Support SLI/Support Topline) 329 yuan 80PLUS Bronze + Ultra-quiet Jingdong direct link View Encyclopedia CoolerMaster is rated 450W GX450 game power supply (80PLUS Bronze/SRC+DC2DC architecture/Full-Japanese Capacitor/Five-year warranty) 299 yuan Low-cost 5-year warranty SRC+DC-DC power supply solution Japanese high-capacity capacitor! Jingdong direct link 450-500W:
Antec rated 500W EAG500 PRO module power supply (80PLUS gold / half module / three year warranty / support back line / computer power supply) 499 yuan Antec mid-end full module power Jingdong direct link 
Seasonal 450W G-450 Power Supply (80PLUS Gold/Half Module/Full-Japanese Capacitor/Support Haswell/Support Topline) 499 Yuan Low-Power Gold Power Supply Series Jingdong Direct Links Encyclopedia 500-700W:
XFX rated 550W XTR550 power supply (80PLUS gold / full module / 5-year warranty / support back line) 579 yuan XFX XTR series 550W power supply can be regarded as the optimized version of the Rhine Yun scheme, adding a low load fan Stopping, the 12cm fan replaced the 13.5cm fan, also passed the 80plus gold medal, the nominal effective conversion rate of 90%, and the high conversion rate power supply of high-tech products. Double-panel, high-standard materials and LLC+DC-DC topology full-module design, 12V single-circuit design, 12V maximum 45A540W output Jingdong Direct link Encyclopedia 
EVGA rated 650w 650 G2 power supply (80PLUS gold / full module / 7-year warranty / 14cm fan / ECO energy / full-day capacitance) 789 US brand, only JD warranty with after-sales. Jingdong direct link 
US Corsair rated 650W RM650i power supply (80PLUS gold / full module / C-Link / mute low fan stop) 1019 yuan CORSAIR (Viking ship) RMi series power supply, is the top version of the RM series, all components Japanese capacitors are used for more stability and longer life. The after-sales warranty period has been increased from 5 to 10 years, while there are still 80PLUS GOLD gold medals, 135mm fan and zero-speed silent mode, full modular connectors, and support for ship-top C -Link technology, which can check and monitor power supply through software processing, and conduct part of Jingdong direct link to encyclopedia 700W and above: (In fact, needless to say more than 700W, I think even if the power of 500W or more will not listen to my recommendation of this enthusiast rather than professionals)
Buy power consider the first price: In fact, not only the power supply, most of the goods on the market are a penny-a-goods, and we try to ensure that the price of the power supply / rated power ≥ 0.5 yuan when purchasing power is basically The lowest price to ensure the quality of the power of ~ of course high-end brand prices even more than 2 yuan / watt.
For example, the Cooler Master G450 that I purchased usually sells for 299, and the activity price is 269. Then his price per watt is: 269/450 - 299/450 = 0.59 - 0.664 Yuan/Watt
Optional power supply Consider the second warranty: If the good quality of the power supply allows us to safely install the computer, then a good warranty on the power supply is a guarantee for our peace of mind, and this is my choice of this cool-cooled GX450 power supply The reason is that there are only a few five-year warranty within 300. And many brands of mid-range power supply have a 5-year warranty (such as the G-450 and XFX's XTR550 I recommended above). More flagship power supply Longer warranty (eg 650G2 7 year warranty for EVGA RM650x 10-year warranty for Corsairs) These extra long warranties make our case and power supply a real heirloom in our computer accessories.
Buy power consider the third brand: consider the price and warranty of the power supply then we come to consider the brand, we can read the brand directly from the start will be dizzy, then we may wish to direct the brand according to origin, then points In order to produce power in mainland China, Taiwanese power supply, and European and American manufacturers' power supplies, we are familiar with brands in mainland China: Great Wall Hangjia and other Taiwanese power supplies: Haiyun Taida Antec, etc. (Xinjing Cooler Master and some other good power brands. OEM branding is not independent R&D and manufacturing. Foreign brands: EVGA American pirate ship is actually a good power source whether it is manufactured by its own factory or handed over to industry and commerce, as long as the power supply materials and product control are done well. The brand name I just branded was also a brand I recognized. Of course, there is no lack of pit products. We can use other considerations to distinguish between different brands.
Power purchase Consider the fourth nameplate: Here I compare the red star R500M with the cool cold supreme GX450 that I have already exploded. In fact, we can see a lot of information from the nameplate. For example, input The voltage range we can understand whether the power supply is a wide input, and whether the 12V output that is more important for single users is single or dual. In addition, we can also see from the nameplate that the power supply is 80Plus certified. .
From the figure we can see that on the right side of the Cooler Master and the game player's lower left corner of the power supply shows that both power supplies have passed the 80Plus bronze certification, and the part I marked with a red border is the input voltage of the power supply. Range, both power supplies are also 100-240V wide input voltage, (here I would like to focus on that because many power supplies use wide input voltage as a selling point, but the input voltage range is not very wide.) Inside the yellow frame is the power supply's 12V circuit output, where the two power supplies have a difference. In the figure above, the 12V output of the Cooler Master GX450 is a single 34A maximum output power of 408W, and the game player in the figure below is the R500M. The 12V output is 24A and 20A respectively. Although the maximum output power is 456W, the maximum output power of each channel is only about 220W. At this time, if the video card you use only uses 1 channel of 12V output and the maximum power is greater than 220W. There is a big Boom risk to the power supply. Although the 12V single and dual input will not be very different if used correctly, but if you just want to use the power simply, a single 12V Output is undoubtedly the best choice. Here we give a Jingdong a crown power supply, this power supply is not only the input voltage is only 200-240V narrow input and dual 12V power supply, we have to buy Note that the warranty for this power supply is only 2 years. Although it is only for 2 years, but I would like to change back the good and mostly repaired power supply.
The model of the power supply is the Antce VP450P VP series is the stepping stone when Antec enters the mainland market. At that time, the name of the brand that has never been a virtual one has indeed brought a big change to the domestic power supply market. So I have a good brand Impression. But VP series really does not recommend everyone to buy, higher-end NEO EAG is a good choice.
Buy power consider the fifth internal circuit structure: In fact, this one I can only briefly say, because I do not really understand just read some relevant knowledge on the Internet, we can buy any brand of power may wish Search the Internet for the brand and model of your choice of power supply to see if there is a corresponding dismantling evaluation. From the dismantling chart, we can see some clues. A qualified power supply I summarize at least the following points: Has a complete level 1 secondary EMI filter circuit. Active PFC. Dual forward/single forward (or LLC) topology and dual magnetic amplification/single magnetic amplification (or DC-DC) DC output Structure. Only if all these requirements are satisfied can be regarded as a qualified power supply. Some power supplies may even remove the EMI filter circuit in order to save costs. In this way, it is very likely that in the later DC output, the output ripple will be unstable and the hardware will be destroyed.
This knowledge has also been mentioned in the SMZDM God of the Great. Some of my opinions are also affected by this, and afterwards some of them are excerpted by myself for a more simple and understandable part:
Computer hardware entry and advanced articles II: desktop power supply power purchase post there are many, the landlord intends to simply explain, do not quote other parts of the paragraph, all original. Speaking of the CPU is like the brain, then the power is an appropriate analogy is the heart, can imagine the importance of power in the computer, I directly into the subject below, I will bring you a simple and straightforward power introduction. 1, look at the power nameplate: What is the power nameplate? This is a Huntkey power source that I randomly selected in Jingdong. I use the Red Yellow River Swamp. | Like 246 Comments 452 Favorites 1k View Details 
Desktop power supply purchase experience article three: common switching power supply structure, materials used to start This article is the last one in the power series experience plan, introduces "common switching power supply structure, materials used to get started." For the average user and player, the landlord recommends that the main choice is to rely on spectrum test data. For many power sources that cannot find the test, if you look at the design plan and component parameters, you can have a rough estimate of performance. More importantly, we will see that the internal power supply is able to make products that are "inconsistent between tested products and commercially available products." Another point, the power supply tester sells one hand | Likes 496 Comments 211 Favorites 1k View Details The following two diagrams roughly describe the general name of the various electrical components in the power supply, and the working principle of the power supply. They are from the site's other gods' power stickers and a power supply science website.
The truth is that what I see is also hazy, but the following points can be summarized for your reference.
First, the power supply has a secondary EMI filter circuit > only one or no EMI filter circuit power supply.
Secondly, all power supplies use Japanese capacitors> power supplies that only use some Japanese capacitors> all use power supplies for Taiwanese capacitors> all use domestic-made capacitors.
Then Topology: LLC> Dual Forward> Single Forward
DC Regulated Output Structure: DC-DC Structure> Double Magnetic Amplifier> Single Magnetic Amplifier
In fact, the LLC+DC-DC structure is also the structure that can improve the power conversion rate at the lowest cost, and it is convenient for the power supply to achieve better 80Plus certification. From some data, I have seen that there are two-tube forward excitation in terms of durability due to the structure of the LLC. Theory, I can't confirm it and just tell everyone here.
At this point, my personal story of the Red Star bomb explosion led to the completion of the story of personal computer power purchase. Thank you for your support. I would like to extend my thanks for everyone here. I wish you all the best in the new year. So we'll see you next time
PS: If you can not say that the younger brother is really for my dead sound card and hard drive expressed great thanks!
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