هذا هو المقال التاسع عشر.
هذا هو تحليل تقني عميق يشرح كيف و لماذا وراء المواصفات المذكورة في مقال الأخبار السابق. هذا النوع من المحتوى يجذب "المستخدمين المتقدمين" والمهندسين، مما يعزز بشكل كبير "الخبرة" (E-E-A-T) لموقعك عبر الإنترنت من خلال إظهار أنك تفهم التكنولوجيا الأساسية، وليس فقط المحتوى الترويجي.
المقال 19
عنوان المقال: ROG Matrix RTX 5090: هندسة الطاقة: كيف يمكن تحقيق 800 واط (BTF + 12V-2x6) slug الرابط: /rog-matrix-rtx-5090-800w-power-engineering-explained الفئة: أجهزة كمبيوتر / تحليل هندسي
توفير 800 واط من خلال بطاقة واحدة يبدو خطيرًا. إليك كيف هندستها ASUS لبطاقة ROG Matrix 5090 لتعالج الطاقة الضخمة بأمان.
عندما أعلنت ASUS أن بطاقة ROG Matrix GeForce RTX 5090 يمكن أن تستهلك حتى 800 واط، كانت رد فعل المجتمع الخاص بالكمبيوتر مزيجًا من الإعجاب والقلق. مع سوء تصرف أسلاك الانصهار في الجيل السابق، كيف يمكن لبطاقة استهلاكية واحدة التعامل بأمان مع قرابة كيلوواط؟
الإجابة تكمن في إعادة تفكير جذرية في توصيل الطاقة. ASUS لا تعتمد فقط على سلك أسمك؛ بل تقوم بتوزيع الحمل باستخدام نظام طاقة هجين.
الحل متعدد المصادر__في RTX 4090 أو 5090 القياسية، يتم دفع كل الطاقة (حتى 600 واط) عبر سلك واحد 12V-2x6. هذا يخلق نقطة واحدة للتوتر الحراري.
تغير بطاقة ROG Matrix 5090 المعادلة من خلال استخدام مسارات طاقة متوازية:
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الاتصال العلوي: السلك القياسي 12V-2x6 (النسخة الآمنة والتحديثة لـ 12VHPWR).
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الاتصال السفلي: الاتصال العالي القوة BTF (Back-To-Future) ذا الأصابع الذهبية (GC-HPWR) الذي يناسب مباشرة في اللوحة الأم.
باستخدام كلا الاتصالين، تقسم البطاقة الحمل البالغ 800 واط. بدلًا من دفع منفذ واحد إلى حدوده، توازن البطاقة التيار. يتعامل السلك 12V-2x6 مع الحمل القياسي (مثل 450 واط)، بينما يتعامل منفذ اللوحة الأم القوي مع الباقي 350 واط+. هذه الم redundance تقلل بشكل كبير خطر فشل المنفذ أثناء الت overclocking.
BTF: أكثر من مجرد "بدون سلك"__
يُعتبر تصميم BTF (Back-To-Frame) من قبل العديد من اللاعبين مجرد عنصر جمالي - طريقة لإخفاء الأسلاك. ومع ذلك، يثبت ROG Matrix أنه له غرض وظيفي.
المنفذ GC-HPWR (المنفذ الإضافي بجانب منفذ PCIe) هو في الأساس ممر طاقة من نوع خوادم. يقرب مسارات توصيل الطاقة من شريحة GPU، مما يقلل من انخفاض الجهد (V-droop). في حالات التوسع المفرطة، يكون الجهد المستقر أمرًا حاسمًا. من خلال تزويد الطاقة من أسفل البطاقة، تضمن ASUS توصيل طاقة نظيفة إلى VRMs. الملح السائل: ضرورة، وليس مجرد مزحة__
تخفيف 800 واط من الحرارة من شريحة سيليكون صغيرة مشكلة فيزيائية. العزل التقليدي هو العائق؛ عند هذه درجات الحرارة، يمكن أن يجف أو يعاني من تأثير "الانسحاب" بسبب التمدد الحراري.
تستخدم ASUSInterface حراري سائل.
التوصيل:الملح السائل أكثر توصيلًا من العزل التقليدي، مما يسمح بانتقال الحرارة من شريحة GPU إلى وحدة التبريد النحاسية فورًا.
الأمان:تستخدم ASUS حاجزًا مضخومًا براءة اختراع حول شريحة GPU لمنع تسرب الملح السائل الموصل إلى مكونات SMD، وهو خطر شائع عند تطبيقه يدويًا.
لا يقتصر ROG Matrix RTX 5090 على "الطاقة الزائدة". بل هو دليل على أن مستقبل بطاقات الرسومات عالية الأداء قد يتطلب التخلي عن المعيار الوحيد للأسلاك. من خلال استخدام اللوحة الأم نفسها كممر طاقة ثانٍ، تمكنت ASUS من هندسة طريقة آمنة لتجاوز الحد الأقصى لـ 600 واط.
هل يجعل هذا التصميم متعدد الطاقة الشعور بالثقة بشأن بطاقات الرسومات ذات الطاقة العالية؟ شاركنا رأيك في التعليقات!
The RTX 5090 costs over triple the price of the 4090, yet only offers a 30-40% performance increase. That level of improvement was typically the standard generational uplift, which used to come at a similar or only slightly higher cost.
What is this form factor?
What is that?
Now it just needs some artwork to reincarnate the Sapphire aesthetic from around 2007.
It needs something like a half-naked woman riding a dragon.
Excellent.
The design reminds me of the Viking woman riding the dinosaur from the film *Kung Fury*.
What is the current consensus on the 12VHPWR power delivery for 2025?
The connector is simply a poor design. It may melt, it may work without issue, or it may cause other problems. This is an unnecessary point of failure you must accept if you want to use a modern Nvidia GPU. While many people use it without trouble, that doesn’t change the fact that the design is fundamentally flawed. It always has been, and the only real fix is to use a different product.
The concern seems overblown. My own 90 series card rarely approaches the thermal limit, and I’ve seen very few documented cases of melted connectors. While I’m skeptical, I can’t entirely rule out user error.
The problem isn’t the connector itself, but the power delivery design of the cards. However, for the last two generations, every card using this connector has also had flawed power delivery, which leads people to conflate the two issues.
I wouldn’t purchase a GPU that draws over 400 watts with this setup.
The card still has issues, as cases of burning connectors continue to appear, even in cards that have worked for over a year without being unplugged. However, using both BTF and 12V-2×6 connectors here provides some redundancy. This offers hope that if something goes wrong, it will be easier to detect before significant damage occurs.
This is very nostalgic. I’m curious how much this nostalgia will cost—perhaps $4,500?
The second connector is the BTF power connector to the motherboard, which is preferable to a second 12V HPWR connector.
A round end on a GPU? This feels like a design straight out of 2007.
The Asus ROG Matrix 9800 GT is a very cool card.
I love it.
The only thing missing is a sticker featuring a sexy android lady with large breasts.
Nature is healing.
My first thought was that this looks exactly like my old 4770, just without the cheap stickers. I actually kind of love it.
It resembles a yoyo.
I like the infinity screen, but I hope they make a version without the red trim.
An 800W model is great news for those who flash BIOS.
That looks awful, and I love it.
I’m not sure why they didn’t use a dual 12VHPWR connector design like the HOF cards did.
You know nothing, Jon Snow.
That looks really cool. I’ve always loved the design of their older Matrix cards.
Is it April already?
Looking at that GPU cooler, I’m wondering what year it’s from.
I’m guessing it will cost around $10,000. That’s too expensive for me.
The power connector will still melt eventually. Anyone buying these GPUs clearly has more money than brains.
What is the purpose of the BTF connector if it still requires an additional 12v2x6 cable?
It’s optional.
My ASUS ROG Astral 5090 just became the budget option.
It looks like the fireball yo-yo I have in my garage.
ATI was competitive with the x1000 series, and they also held some ground with the HD3000 series, primarily in the budget segment. The HD2000 series was really the only significant miss.
In the high-end segment, ATI and AMD have typically been competitive in the low and mid-range, but their high-end offerings haven’t always been strong. However, with this and later architectures like Fermi, AMD maintained a competitive high-end presence for a considerable time, similar to the recent rivalry between the 6800 XT and the RTX 3080.
This is a unique design, but I’m sure it will appeal to those seeking a high-end, exclusive product.
I’m sure it’s only $6,500.
The Sapphire ATI Radeon HD 5850 is calling to request a refund.
This design has an even longer history.
I enjoy special editions for the fun of it.
Oddly, I don’t hate it. I will hate the price, though.
It’s 10% faster than the RTX 5090. Congratulations to Team Red.
Finally, those clickbait YouTubers were right.
This is finally a worthy upgrade from the RTX 4090. Now it just needs to stay at its $2000 MSRP.
Since it can split power across two connectors, this model is probably less likely to catch fire than most RTX 5090s. However, with the 12Vhpwr cable still in use, the risk is never zero.
Given that the Astral model features per-wire current monitoring and control, this model likely does as well. Therefore, it should not be an issue.
Vapor chamber.
The 800W power draw means the transient power spikes will be significant.
Can’t wait to see the first forum post of someone melting their PC.
Why does my circuit breaker trip every time I watch a cutscene?
You mean they’ll flip their breaker and knock out their own internet.
A college dorm reportedly burned down after a fourth-year student played Cyberpunk at 4K ultra settings until 4 AM.
Update: The student was playing Peak and failed to enable a frame limiter.
The original Matrix was the ASUS ROG Matrix 9800 GT, which likely served as their inspiration for this design.
Since when is it named “Vapor” Chamber? I always thought it was supposed to be “vapor,” as in water vapor.
The GPU cooler emits a bubblegum-scented vapor.
It resembles a USB stick.
They must have taken Jensen out for quite a few nights to secure that.
That cooler design is going to be polarizing.
Not if you’re an ancient fossil like me who grew up with this style of cooler.
They know who has the money now.
This design reminds me of my old HD 4770, which was stylish for its time, but it’s a style I avoid now. I generally prefer neutral colors like white, nickel, silver, titanium, or gunmetal. Here’s an unpopular opinion: their Noctua edition of the 5080 looks far better than this.
It’s a limited run of only 1,000 units.
So, 999 units are being given to YouTubers, and one is listed on eBay for more than an RTX Pro 6000. I’ll take the RTX Pro 6000, thanks.
Nothing is more frustrating than a limited product reviewed by a reputable YouTuber that you can’t actually buy unless you pay triple the price on eBay. GALAX Hall of Fame cards have built a business on this model.
Consider Razer’s carbon fiber mice or InWin cases, for example.
I ended up with a GravaStar Mercury X Pro Wireless Gaming Mouse because Razer’s was limited edition. I also bought a Lian Li O11 XL because InWin doesn’t actually produce the cases people want, instead selling only the less desirable models.
If supply is that limited, having access to YouTuber samples won’t change anything.
It’s true, but what gets to me is that I only know this product exists because of YouTubers.
I understand it’s good content for them, and that’s not their fault.
The issue is with the companies that create these limited-run products, like the RTX 5090, and then market them widely. They know full well these items are either loss leaders or too difficult to mass produce profitably. Their real intention isn’t to sell it to you, but to generate brand publicity.
You can add as many connectors as you want, but problems will persist without any load balancing. This is why ASUS included balancing on the Astral card.
That design is quite unattractive.
I assumed if they went to the trouble of measuring each net individually, they would also act on those measurements. Otherwise, they could have just used polyfuses.
It appears to be an ATI GPU.
It really does. We’ve come full circle.
“Full circle.” No pun intended?
It wasn’t intended, but it’s a happy coincidence.