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Classifieds / Re: [Buying] Gaming keyboard
« Last post by Nero Superbad on December 05, 2023, 11:48:37 pm »
Hi I’m in the market for a gaming keyboard.
Please leave any offers with the model, price, used/new and any additional details!

Glorious GMMK 60% Compact, Mechanical Switches ( Cherry  MX Brown), Used carefully, Bought From Amazon USA, Detachable USB Type C Cable, With box and All accessories in Brand New Condition, Price 20K.... Call or msg 0715344346
Classifieds / Re: [PSA] PSUs and the (in)famous Tier List
« Last post by bitviper on December 05, 2023, 11:27:25 pm »
awesome post, this is absolutely true.
it's never a good idea to cheap out on a PSU, especially when you have expensive components on your rig that can go kaput when the crappy PSU you cheaped out on decides it no longer wants to live.
even with a moderate to good PSU with time things can go bad.
I had a 600W FSP AurumS I bought second hand which gave me trouble.
first I noticed that my hard disks would disconnect all of a sudden which I initially chalked up to them going bad.
but in a day or two my pc started abruptly shutting off and not booting properly with motherboard CPU debug light being on.
at this point I suspected it's the PSU which is more than 5 years old at that point and put in a new one and turns out it was the PSU.
I'm still glad that I replaced the PSU when I did because had I not done so I probably would've paid a much steeper price.
btw thanks for taking the time to write a detailed post. it's very informative.
Classifieds / Re: [SELLING] ASUS VG249Q3A 24" 180hz IPS
« Last post by TaiRyFaLe on December 05, 2023, 08:51:34 pm »
Classifieds / Re: [Buying] Used Joystick/Flightstick for PC
« Last post by monkey king stu on December 05, 2023, 09:35:29 am »
Classifieds / [PSA] PSUs and the (in)famous Tier List
« Last post by monkey king stu on December 05, 2023, 01:24:29 am »
After my recent run-in with a used PSU that I may have wrongly assumed to be a good unit, I came across the PSU Tier List (originally on linustechtips, now moved to https://cultists.network/140/psu-tier-list/).

It made me realize my faulty preconceived notions:
*All PSUs from a good brand are good: WRONG!
*All PSUs with a good efficiency rating are good: WRONG!
*All PSUs with at least 3yrs warranty must be good: WRONG!
*PSUs widely used and available in the market are most likely good: WRONG!
*Pricey PSUs must be good: WRONG!

You get the picture... I was a gamer for decades; I know that VGAs are the first to fail followed by mobos; RAM and CPUs last forever; HDDs die eventually and SSDs have their write limits, but I never ever gave much thought to PSUs until now. This thread is for anyone as ignorant as me. The TLDR:

*PSU is the heart of the PC. If the power isn't clean then it'll slowly kill off the rest of the parts. Never cheap out on the PSU!
*While PSUs from reputable brands are more likely to be better, even they produce models that turn out to be lemons.
*The efficiency rating merely indicates power efficiency/wastage and is in no way indicative of the quality of the PSU itself. (fakes can be verified at https://www.clearesult.com/)
*More warranty is good, but while a bad PSU may survive it's many years of warranty, the rest of your PC might not...
*Don't be fooled by bad PSUs that are widely used/available in the market, they survive because ignoramuses like me exist.
*The better models are almost always gonna be more expensive, but bad PSUs could also be priced high to fool unwary customers; they are overpriced to begin with.

PC parts fail, eventually, but we don't always know why, we just assume it's their time, collect warranty if available or replace if not, and carry on with our lives. But that's what's so dangerous about a bad PSU, because it could easily have been the culprit that killed off the part and we'd never be the wiser! There have been instances where PSUs have killed off entire systems while the unit itself survived and remained guilt-free!

So for those of us who have no clue, we have the PSU Tier List; a guide on what to buy, or more importantly, what NOT to buy.

But there's also a problem with the Tier list; for a country like Sri Lanka, where the listed brands/models aren't easily available or are rather pricey when they are, it's hardly practical to follow. While wealthier enthusiasts might stick to Tier C and above, there's the glaring fact that most gaming machines, custom or store built, are using PSUs from Tiers E: Avoid and F: Replace Immediately, except for a few stores who's low end machines have Tier D: iGPU only units in them.

But how does that make sense? Why would stores sell systems with discrete VGAs powered by anything less than Tier C?
There's also the fact that famous models like the Seasonic S12II series which carried 5ys warranty have been kicked down the Tier all the way to E: Avoid!

Here's my take:

The PSU Tier List is largely based on the ability of units to operate effectively at the rated wattage, which means that they need to be able to handle loads, both low and high, up to their rated wattage. While this is an oversimplification of all the other variables (quality of components, protections, power regulation, etc.), it's an easier way of understanding things.

So reputed sellers are able to relatively safely pair a Tier D PSU with low-end or low power mid-end VGA as long as it stays far enough away from the rated wattage at load, usually such systems mostly operate closer to 50% capacity and are therefore within safe limits.

The Tier List can't reflect this because it doesn't have the luxury of being subjective, that's most likely why Tier D is iGPU only, because no iGPU system will ever come close to load on any of the listed PSUs, but the moment you add a discrete VGA into the mix you create the possibility of reaching full loads which those PSUs can't handle.

As for once popular models, like the Seasonic S12II, which used to be on higher tiers but now don't even make it to tier D! it's because while they were great for their time, their tech is too old and not up to date with the new tech of all the other parts today. The way all the rest of the parts of a PC draw power from the PSU has drastically changed and are no longer effectively supported by older PSU tech.

Take for example a 2015 PSU that has a 'Haswell Ready' label on it to show support for newer C6 and C7 power states at the time. This would mean that a high end PSU from a reputed brand that was not 'Haswell Ready' at the time, would NOT support these states and lead to compatibility issues. This clearly shows that despite how good the PSU is, if it doesn't keep up with new tech then it cannot be justified on any modern list.

While this is all true, the ground reality also doesn't support the strict recommendations in the Tier List, so I've come up with a guide for myself on how to safely go one Tier down on the list:

Tier A: For those who can afford it; overkill for low-mid end systems as it mostly includes units with capacities over 1000w
Tier B: is the new A  ::) minimum for high end VGAs
Tier C: The minimum most gamers should be aiming for, minimum for mid end VGAs on the higher end of the spectrum
Tier D: For those on a budget and under the safety of the following conditions
1) Stick to VGAs lower mid end or less
2) PSU should have at least 150w leeway on load (eg: system on 500w PSU should not draw more than 350w on full load)

Tier E: Avoid... unless on a tight budget, only consider under following conditions
1) Stick to low watt low end VGAs only (ones that don't need extra power connector)
2) System on load should not draw more than half the capacity of PSU (eg: not more than 250w on a 500w PSU)

Tier F: Replace Immediately! Unless on iGPU and no funds; run only as long as you collect enough to replace at earliest.

*Please note that some recommendations on Tier F are based on assumptions from test results of some models. There's always a chance that models can move up or down tiers as more reviews/tests are conducted.

**Any input on this thread is appreciated.
Classifieds / Re: [Selling] DDR3 Ram for sale
« Last post by mmahaz on December 04, 2023, 11:51:19 pm »
Classifieds / Re: [Selling] Core i5 10th Gen With RTX 3070Ti
« Last post by monkey king stu on December 04, 2023, 10:30:30 pm »
price is with gpu?

Pretty sure it is, cause you could get the rest of the parts cheaper brand new!
Classifieds / Re: [Selling] Core i5 10th Gen With RTX 3070Ti
« Last post by jude725 on December 04, 2023, 09:32:10 pm »
price is with gpu?
Classifieds / Core i5 11th Gen (11400F) Gaming PC with RTX 3070Ti
« Last post by sajitha on December 04, 2023, 07:07:46 pm »
– Core i5 11th Gen (11400F) Processor
- Corsair Vengeance RGB Pro 16GB (2 x 8GB)
– Galax RTX 3070Ti 8GB Graphics
- Corsair CS Series™ Modular CS650M — 650 Watt 80 PLUS® Gold Certified PSU ( Semi Modular )
– 256GB Lexar NVME
- 3X Chassie Fans RGB
- Armaggeddon Ruby Gaming Casing
- Comes with Havit GAMENOTE Mechanical Keyboard (Sakura)
Price : 210,000LKR

Whatsapp me on 0757701701 if interested !
Classifieds / [Selling] Core i5 10th Gen With RTX 3070Ti
« Last post by sajitha on December 04, 2023, 06:44:33 pm »
Specs :

-Core i5 10400F 10th gen Processor

– 16GB DDR4 Ram
-Nvidea Rtx 3070Ti 8GB VGA (Can play almost all the AAA titles at high or ultra preset)
-CoolerMaster MWE Bronze 650 80 Plus Bronze Certified ATX PSU
-Raidmax casing with deepcool fans / RGB Fans
Price : 180,000LKR

Unit is in excellent working condition and can be checked thoroughly prior to the purchases.

Whatsapp me for more information : 0757701701
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