Are you getting any BEEP codes? Consult MB manual for those, if you have a speaker. All BIOS versions listed for both processors. RAM is on list for both CPUs. Memory in A2 & B2 slots?
Pay attention to Post Status Checker, item 18 on motherboard, pg 7 and note on pg 31 in English manual
I used a razorblade and needle and bent the pins back, more or less to a even position.
The problem with the bent pin is it had a sharper bend around the middle of the pin… so without super thin tweezers to straighten it out, I couldn’t get rid of that bend.
But more or less I straightened the bent pin back out.
When I dropped it in, the PRO 4750G cpu dropped in smoothly, so it looks like the pin is seated well?
Problem is, still getting the same CPU and DRAM error LED lights when booting again.
Speaker is any speaker that works. (just thought about it. Not sure what speaker specs it requires. 8 ohm???) It is just to hear the beeps, if there are any. I think there were piezoelectric speakers last century. Just be glad you don’t have to listen to AOL dial up noises.
AI Search Assist said this. It is probably spot on for the basic function of beep codes.
“Typical PC speakers are usually 8 ohms with a power handling of about 0.1 to 0.5 watts. They are often small, around 3 inches in size, and designed primarily for basic sound output rather than high-fidelity audio.”
You can reply to all of us in one post. There is a quote function if you need it.
Is actually 100% also worth try to clean contact: if you have isopropyl alchol apply it before one pass with a pencil rubber (just care about don’t knock away the little caps/resistor near the pins, be gentle ); then insert/remove the stick from the slot and repeat again the operation 2-3 times (this ensure that memory slot on the mainboard will be also clean as possible)
Thanks @SmallBarky I miss the old AOL dial-up sounds. Along with the “you’ve got mail” sound.
I think on ebay they’re like $12, I’ll buy one off there.
@oxyde Any advantage to using a pencil rubber, over just using a paper towel?
Also the motherboard is new (ASRock B550 Pro4), although the RAM is used. Should I still put in the wet RAM into the motherboard to try to clean the motherboard slots with the alcohol?
The rubber is effective also without alcol, if you don’t have IPA (care, don’t use other type of alcol), you don’t have much choice in other case, use paper towel, should be enough
I always do that, in the moment you put dirty stick into the slot, also the slot can get dirty (better, the tiny pins into It); 2-3 times of insert-remove Is safe, using a brush have the same result except that if It Is not enough soft, can literally break some pin.
Just 1 PIN on the total on RAM that not make good contact, whatever type Is, and the PC will not post… So IMHO Is worth to first check this before continue troubleshoot
Thanks oxyde - I will use your rubbing alcohol trick to clean the RAM and try again.
Tried these things yesterday, and still no success getting it to POST:
Update:
Unplugged everything besides fans and mobo / cpu power. (And power/reset switch connections, since they’re blocked by one of the HDDs, which I was hoping not to remove (since it was a pain to mount it)).
Still no POST. Just CPU and DRAM error lights.
Left only 1 x 32GB ECC RAM stick in the A2 slot. Still same errors, no POST.
Cleared CMOS (removed battery for 20+ min). No POST.
When booting, let it run a few times for 15 min + to see if maybe it needed to train the memory. Still no POST.
I will buy one stick of 8GB consumer DDR4 RAM, on ebay, to get it to boot. Problem is I have no DDR4 system, so I have no way of testing whether it’s a “known good” stick or not.
(I’m open to suggestions for best DDR4 8GB stick to get, that has highest likelihood of getting my system to POST).
Please let me know if you guys have any other ideas.
(I also bought a motherboard speaker, for better troubleshooting. Waiting for it in the mail).
It could be a bad motherboard. Unfortunately, unless you are a computer repair shop with spare, working parts, you wouldn’t be able to tell. Every piece has to be ruled out as working or not. If you don’t have a spare MB to test the cpu and ram in, you either try to return the MB or pay someone to test all your hardware and assemble.
I don’t have much more tips to share that not involve “hard troubleshooting”.
Reading all the attempt, Is hard to not point to a bad RAM or to a motherboard fail.
I just hope for you that the bent CPU PIN didn’t made any bad contact… Who know what voltage go where
Don’t seems that you can perform a BIOS update if the PC not post, hard to think that a brand new motherboard can have a corrupted BIOS so maybe not worth focus on this.
Just for test, every kind of RAM can be good, also a 4gb 2133mhz used stick (that actually are not sell used at crazy price) can point you in the right direction. Maybe a friend can help you on that, so you not have to buy anything?
You should also give a very deep look on the motherboard… Maybe some component has been knock off during the installation on the case? Seems odd but happen often… A scratch on a trace, a resistor/cap missing, …
When power on you also notice any component that start heat too much? Super-io, chipset are the first to check (also for the chipset, of Is totally cold Is a bad sign)
Now, bear with me, but try booting with the MoBo outside of the case, and check if the standoff pins on the case are exactly where the soldering points of the RAM are.
); then insert/remove the stick from the slot and repeat again the operation 2-3 times (this ensure that memory slot on the mainboard will be also clean as possible)