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tlee58657
Adept II

test if fx-8300 is good

I damaged an Asus M5A87 mobo in my homebuilt desktop, which was running an FX-6300.  I installed the FX-6300 on the replacement mobo, and it would not POST or boot.  I installed an AMD Athlon II x2 245 instead, and successfully booted w/ the replacement mobo into Windows 10, and updated the BIOS to latest version, to ensure it would support an FX-6300 or FX-8300.  But when I tried the FX-6300 in the replacment mobo, it would not POST or boot.  I tried an FX-8300, which was brand new, but had been sitting on a shelf for a couple of years, and the replacement mobo still would not POST or boot. 

Asus tech support is suggesting that I contact you at AMD to see if there is some way to test and see if the FX-8300 and/or the FX-6300 are working and functional.  Can I send them to you for testing?  Please advise. 

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23 Replies
misterj
Exemplar

Re: test if fx-8300 is good

tlee58657, this is a User Forum, not AMD.  I suggest you contact AMD Online Support.  Enjoy, John.

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tlee58657
Adept II

Re: test if fx-8300 is good

OK, thank you, will do. 

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elstaci
MVP

Re: test if fx-8300 is good

If your Processors are less then three years old you can open a AMD WARRANTY REQUEST from here: AMD Warranty Request Form | AMD 

They can tell you how to check if the processor is defective and whether it is under Warranty.

NOTE: Make sure your Motherboard has BIOS version 1301 installed for the FX processors to be recognized and supported. That is if you replaced it the motherboard with the same original one you had before.

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tlee58657
Adept II

Re: test if fx-8300 is good

I have an FX-6300 that is more than 3 yrs. old (purchased 5/2013), and an FX-8300 that is just over 3 yrs. old (purchased 3//2016).  I had to use a dual-core, AMD Athlon II x2 245 to update the mobo's BIOS to v. 1506.  But neither the FX-6300 or FX-8300 works in the new, exact replacement, mobo.  The new mobo will not POST or boot, whereas it does with the dual-core.  The FX-6300 did work in the original, now-damaged, mobo.  ASUS tech support is saying the FX-8300 could be bad, even though it's been sitting on a shelf since I bought it. 

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elstaci
MVP

Re: test if fx-8300 is good

does indicate that both, which is rare, are both defective.

Best way to check is to try and install it on another compatible Motherboard. If both don't boot up nor  POST on another compatible Motherboard with the correct version of BIOS installed then you have bad processors.

Check both FX processor visually for any bent or missing pins or physical damage. Might want to use a magnifying glass to help.

Possibly the bad motherboard shorted out the FX-6300.  As for the FX-8300 I personally doubt it went bad by just sitting on a shelf for over three years unless you received it defective from the Retailer or was physically damaged while on the shelf.

I have a FX-8350 which has been excellent with a Asus Sabertooth 990FX Motherboard. Even after the Processor overheated more than once (due to a defective CPU Cooler) and shut down the computer. It stills works like a new Processor.

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tlee58657
Adept II

Re: test if fx-8300 is good

Neither the FX-6300 or FX-8300 have bent pins.  I checked with magnifying glasses.  The last I checked, the original mobo ran the FX-6300, but the physical damage (to a SATA port) may have caused operating system (Win10) errors and blue screens.  I could try it again, but wanted to see if I could have AMD check the processors, as ASUS tech support suggested.  I'll see if I can test both processors in the original mobo. 

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elstaci
MVP

Re: test if fx-8300 is good

AMD probably would have checked them (RMA) if they were within the 3 year Warranty period.

Installing the processor on the bad Motherboard is not going to produce different results since both motherboards are the same Make & Model. If the processors are bad and then I see no harm in installing it in the defective motherboard. At least to see if it boots up regardless if it BSODs while entering Windows.

I would take the Processors to a computer repair shop or Best Buy to check the processors out. But it probably might cost almost as much as a new processor to have them check it out.

This give some Troubleshooting tip on how to tell if the Processor is bad or not: How to Figure Out if My Processor Is Damaged | Chron.com and this article from same tech gives symptoms of bad processor: How Can I Tell if My CPU Is Bad? | Chron.com 

One tip it mentions is a good one which I forgot to mention.

With the bad processor installed, how many BEEPS to you hear when you power up and it starts to Boot?

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tlee58657
Adept II

Re: test if fx-8300 is good

Thanks, elstaci.  I hesitate to go to the trouble of running the FX-6300 in the original, damaged mobo again, because it successfully booted into Windows 10 last time.  There are no BIOS beeps on boot.  But a blue screen occurs after approximately 13 minutes of idle time.  It takes longer, if the computer is doing a task, and then, I do eventually get a blue screen.  I've been trying to troubleshoot the problem for almost a year, in Microsoft forums. 

Damage to the original mobo appeared at first to be minor enough not to require replacing.  About two years ago, a mobo SATA connector became partially disconnected and dislodged from the mobo surface when I bumped it (the SATA cable was in the SATA connector) during removal of the HDD.  However, the computer ran OK for a year or so after that.  Then, last June, the computer started giving blue screens after the 13 minutes of idle time.  After extensive troubleshooting for months, I decided to try a mobo replacement.  This cost me quite a bit because the only available, exact replacement was from Germany by way of eBay, and shipping added significantly, with the resulting total cost of over $150.  

The replacement mobo would not boot with the FX-6300, though.  The seller told me to make sure the BIOS was updated sufficiently to run the FX-6300, and also did send me a 2nd replacement mobo at no extra charge.  I then had to purchase the dual core to update the BIOS on the 1st replacement mobo, after which the FX-6300 and FX-8300 would not even POST.  No beeps at all, with just a blank screen indicating no signal.  But it runs and boots fine with the dual-core.  This is where things stand now. 

ASUS tech support is concluding it must be the FX-8300 that isn't working, and told me to purchase a new one.  I said, I don't think so, for reasons I've been describing.  That's when they suggested asking AMD to test the FX-8300.  

I am hesitant to run the FX-8300 in the original, damaged mobo, in case that mobo did something to the FX-6300 which made it incapable of running in the 1st replacement mobo.  I'm concerned the original mobo might possibly, similarly damage the FX-8300 if I used it to test.  

I could try the 2nd replacement mobo, by first using the dual core again to update the BIOS, and then trying the FX-6300 and FX-8300 in that.  But if the process of updating the BIOS with the dual core somehow rendered the 1st replacement mobo incapable of running the FX-6300 and FX-8300, I don't want to also do the same damage to the 2nd replacement mobo. 

That's why I'm considering asking AMD to test the FX-6300 and FX-8300.  It would be an independent test.  I could also ask a computer repair shop or Best Buy, as you suggest.  But if it's going to cost alot, maybe I should just purchase another CPU.  I've already purchased a replacement power supply and video card, during the process of troubleshooting. 

I wrote this without reading your reference links, but will read them now. 

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elstaci
MVP

Re: test if fx-8300 is good

I had the same sentiment about installing the FX's in the defective MoBo. It could damage the FX's (if they are good) if the MoBo is shorting out. That is why I said if the processors were BAD then you can install it on the defective MoBo to see if it boots up.

If the new Mobo BIOS hasn't been updated to at least 1301, the FX won't boot up because the current BIOS (if older than 1301) will not recognize the FX processors. I see the last BIOS version is 1506.

You have a very old Mobo. Only Windows 8.1 and below has drivers but not for Windows 10. But that should not matter, the computer should still POST and Boot up.

Make sure the CPU Cooler is installed correctly and you don't apply too much Thermal Paste on the CPU and the CPU Fan is running during power up.

According to the above article (second link) which I showed the entire article, one of the symptoms of a bad Processor is BSODs.

First: make sure you have the latest BIOS version installed (1506).

Second: make sure you install the CPU Cooler correctly and it is running during power up.

Third: Make sure you have all the Mobo Power connectors connected including any 4 or 8 pin Aux Power Connectors.

Fourth: Cross your fingers.

EDIT: I don't believe AMD will check your processors since they are out-of-Warranty.

For $150 dollars you could have purchased a much newer and better MoBo like Asus Sabertooth 990FX Mobo which runs the same CPUs as yours. Most likely you could have used the same DDR3 RAM memory. But that is water under the bridge since you already purchased the same Mobo as before.