...and POO again.
Been planning on getting a GPU with more grunt for my nefarious video processing. So after the now traditional humungous wait for stock, I fitted a new 1660 Super. Slipped in no probs, worked fine. Rebooted a couple of times to check things. All good. Third reboot.....no POST. Back in with old card.....no POST.
Suspect I've blown the power supply. It should be perfectly adequate at 500W since the 1660 Super is only a 120W card and the other bits and bobs aren't drawing much. But it's an elderly Novatech modular jobby, so. Praying it isn't the mobo, which is an old GA 97X SLA since that would probably mean buying new everything - and I just added another 16GB of memory.
I HATE all the mucking about trying to find what's wrong.
Hmm. Opened another working PC and trailed power connectors from that PSU to the mobo on the failing PC. Still no POST. Not conclusive as the mobo on the failing PC wants an 8 pin ATX plug (2 x 4) whereas the donor PSU only has a 4. Should be enough power if the mobo is OK, but no idea whether the mobo is designed to only work with 8 pins.
Tomorrow I'll try to power the donor machine from the failing PC's PSU (too fed up now).
It happens sometimes. 3 years ago I built up a new PC to replace my ageing system (7 years old, so had served me well), however I decided to keep the beefy 850w Corsair modular supply from my old PC for use in the new one. New PC was built up, I was steadily setting it up, then after 2 days there was a loud bang as the PSU decided to give up the ghost in rather spectacular fashion.
Thankfully, it didn't damage anything when it blew and a new PSU resurrected things. But yeah, can be a shit when things break like that :(
I'd just (a couple of months ago) built the whole lot into a new case taking time to cable-manage properly. That means that it's all tightly routed with cable ties behind the motherboard. Bit annoying to have to pull it all apart so soon.
I suppose, looking on the bright side, if the PSU is OK and it is the motherboard that's given up, at least I have a decent PSU for the new build.
If the worst comes to the worst, any idea of an AMD CPU which will have similar or better grunt than an old i5 4960 (which was clocked at 4.2 GHz)? I'm thinking of a Ryzen 5 3600.
The Ryzens should be pretty good. Not sure how they compare to your previous CPU mind you, might need to check a few reviews.
For my last build it was pretty straightforward as my old CPU was a 1st Gen Core i5 750, so pretty much *anything* was faster!
My idea about a Ryzen 5 was based on about 30 seconds research round about when I bought a new case. That purchase was inspired by an earlier opening of my ancient Antec case to (finally) investigate what had been rattling (tiny piece of card got into a fan) and thinking how ghastly it was.
I'll have to do a bit of reading. But hopefully not - as I'm actually quite happy with the i5. Knowing my luck, both mobo and PSU will have gone together.
Well, the PSU seems OK having successfully powered up my Plex/backup box without any complaint (apart from me moaning as I threaded the 24 pin connector through a rats' nest of wiring).
So, last try before I give up and spend more money is to strip down and rebuild the PC to rule out any accidental prods and tweaks from installing the new card earlier*. I have my doubts. I think it's probably a failure on the motherboard. It could be the CPU I suppose, but that means replacement anyway.
25 mins later, failed to POST basic configuration with CPU, cooler, 1 DIMM, 1 boot drive...and that means replacement :(
I suppose building will be quite fun once the spender's guilt has died down. I suppose I could ebay the mobo and CPU as "one or both not working". The GA Z97X working goes for north of £100 which is stupid money and the i5 4690K for around £60.
AAARRRRGGGGHHH!!!!!!! BOLLOX to this computer shit! So I unplug front USB and sound and swapped one DIMM for another. It POSTs and goes to a "previous boot failure" screen. This makes me wonder whether the new NVME drive has failed. Before I do anything, I just power off and power on. No POST. So just out of curiosity I remove the NVME drive. And yep, this time I get a "missing boot drive" screen. So I power down, add a USB mouse and keyboard, and power on. No POST. Power off, take out mouse and keyboard. Power on. "Missing boot drive" screen. So I add the mouse and keyboard back and hit reset. This time I'm able to get into the BIOS. Load defaults and restart. No POST!!!!!
My best guess is a fault like a broken solder joint. One last strip down and rebuild tomorrow, and a check of the motherboard and everything else really, for anything obvious
*and the original, and a GT710 in a x1 slot
((((WmA)))) An intermittent fault is the worst. It could still be an inadequate or dying PSU, managing to boot a less power-hungry system, but falling over as the more demanding one boots, and the failure expressing as a failure to adequately power various components more or less at random. A new PSU isn't the most expensive item and it sounds as if it could do with replacement soon even if it's not, ultimately, the guilty party.
Although your symptoms aren't anything like they ought to be, it might also be worth swapping out the BIOS battery, if only because it's cost-free.
Have you tried to see if it will post without a drive in? Sometimes the SATA addressing can get messed up (my fanciful attempt at an explanation), and if you move the drive to another plug on the MB AFTER posting with no drive connected. Anyway it worked for me once or twice for hdds on two different-gen mobos. Maybe it makes the bios reset, I dunno, I'm more of a trial-and-error type of fixer.
EDITED: 1 Feb 2021 11:39 by DSMITHHFX
I put a new battery in when I changed the case. And, yes, I know it could still be the PSU :(
It successfully powered my other PC though, which is fairly well loaded with components - i7 with loads of drives.