In my career, I have fixed over 1000 PC's and only twice have I ever seen a bad CPU. One was my own PC an AMD 586/133 and the other was an IBM 300GL. Anybody else seen them?
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In my career, I have fixed over 1000 PC's and only twice have I ever seen a bad CPU. One was my own PC an AMD 586/133 and the other was an IBM 300GL. Anybody else seen them?
I see about 2-3 a week... on a SLOW week... a couple a day on bad week....
About 4 Intel ones, 6-7 AMD ones and more than 10 Cyrix ones.
Topic moved to the Tech Tales forum!
Ever seen a Cyrix? :D
I have never seen a bad Intel CPU, at least one that wasn't damaged by an outside force (such as overheating).
And I've only seen ONE bad AMD, a K6-2 333.
I've had a couple of OEM chips from Intel & AMD both that were DOA, but you'll have that every once in a while.
Never seen a bad Intel. I see people bringing in dead AMD's everyday for RMA at my wholesale distributer's.
I've seen about three bad CPUs (two AMDs and an EverGreen), and about three hundred people trying to return CPUs that they claim were bad but were actually overclocked and melted, installed backwards and melted, installed in wrong type of slot and melted, installed without heatsinks and melted, all of the above and melted, etc., etc., etc...
I have only seen a couple of bad intels, actually they were remarked p133 that were actually p120's.
only 1 amd 1.3ghz (turned out that the customer fried it)
i never touch cyrix, i think they are all bad. hehehe
A PNY overdrive chip!
One K6-2 300 out of the box
On intel slot1 something like a pII450 out of the box
Yes several Intel and AMD. The most interesting on was an AMD T-bird with a bad MMX resiter everything would work fine untill you tried to play a WAV or AVI then BSOD.
I had an AMD chip literaly explode when installed. I big chunk came of the top. But the problem was with the mother board. The guy that sold it to me told me he had three MB from the same shipment blow up the AMD chips.
The bad thing was that the client was sitting their with me as I was upgradng his computer. I felt really stupidd because I thought I had done something wrong.
Yes, let's not forget these.... :pQuote:
Originally posted by Wayward Clam:
I've seen about three bad CPUs (two AMDs and an EverGreen), and about three hundred people trying to return CPUs that they claim were bad but were actually overclocked and melted, installed backwards and melted, installed in wrong type of slot and melted, installed without heatsinks and melted, all of the above and melted, etc., etc., etc...
I've seen a couple of bad PNYs - only 2 intel that I can remember and a few AMD.Quote:
Originally posted by Larommi:
A PNY overdrive chip!
One K6-2 300 out of the box
On intel slot1 something like a pII450 out of the box
I've seen quite a few fried AMD K6-2 2,2v processors mostly due to problems with core voltage regulators on motherboards.
...also a lot of Cyrix,IBM and Winchip CPUs - due to problems with overheating (problems with fans).
...also Intel's CPUs - due to over-over-clocking. :eek:
I've seen several bad IBM/CYRIX, a few bad AMD K6's mostly due to the above mentioned problems, one bad AMD T-Bird 900, never a bad Intel PII or PIII chip, EVER!Quote:
Originally posted by Wayward Clam:
I've seen about three bad CPUs (two AMDs and an EverGreen), and about three hundred people trying to return CPUs that they claim were bad but were actually overclocked and melted, installed backwards and melted, installed in wrong type of slot and melted, installed without heatsinks and melted, all of the above and melted, etc., etc., etc...
Only one 486/100 (he'd got pissed and combed his hair with it!)
Oh, loads of IDT Winchips, not faulty, just BAD!
Only ever seen one bad AMD chip, a 350 K6/2 tha someone had tried to overclock. It actually still works but only in DOS. As soon as you put it into a machine running Windows, or else try to install Windows, it just gives protection errors all over the place. Never actually had a bad CPU out of the box that i can remember...
I have 2 AMD 133 here. and still working. just for typing and surfing. :D
One PII 233 bad right out of the box.
Only a pentium 75, I think someone tryed to over clockit without a big enough heat sink.
I have seen only one PII bad out of the box. It would work for 2 min and then quit. I have seen allot (over 10) Cyrix and I hated them with a passion. I have seen about three bad K62s.
I will not include the number of people who have tried to return CPUs after they have overclocked, put them in the wrong MBs or set the voltage wrong. I would never overclock a K62 but people keep trying. Last week I had a customer bring his system for warranty and he had his K62 350 clocked to 500. He was wondering why the system would lock-up after three minutes.
I've just sent a K6-2 back that arrived with bent pins. A couple of old Penitum 1's but thats about it.
I've seen several Evergreen overdrive chips, some Cyrix cpu's, a few AMD and only one Intel... Not to mention the processors fried by the poor motherboard design of Packard Bell... :p
I've had pretty good luck with AMD and INTEL but a couple of years ago we used Cyrix and only 1 of 5 were ever good.
Cyrix = JUNK
Ditto, except the winchip. Haven't seen many of those.Quote:
Originally posted by Ruslan:
...a few fried AMD K6-2 2,2v processors mostly due to problems with core voltage regulators on motherboards.
...also a lot of Cyrix,IBM and Winchip CPUs - due to problems with overheating (problems with fans).
...also Intel's CPUs - due to over-over-clocking. :eek:
Most recent was a Celeron 400 that lost the cooler. Melted the underside of the processor and the socket was black. :eek:
Ive almost seen bad everything especially Cyrix 686 chips.
Intel chips are quite reliable
Early in my tech career I actually broke a cpu pin off a P75 which my boss at that time was able to fix by soldering something back in its place and it went - sweet as
Another P75 a customer of our had running inside their pc for about 3 months without a fan - they didnt know it needed one, The motherboard ended up dead. But plugged the cpu into another mb and away she went
An AMD K6-2 300 from my Winbook laptop.(cracked in two)An AMD T-Bird 1.1G, haven't seen any Intel chips DOA.
My 'ole Cyrix P-200 still chews it's gum pretty well tho I don't run it too much anymore.
A couple yrs ago I found several K6-2s in one shipment that had bad L1 cache, never saw an Intel bad out of the box, Never saw a good Cyrex out of the box.
loads of cyrix's ibms IDT's intel's and 3 amd's (2 of the k6's)
Simon
I had someone bring me a PC that no longer worked and smelled bad. When I opened it up there was a lot of black on the motherboard and I pullled the CPU fan and there were 2 parts of the CPU. It was an IBM/Cyrix 686 cpu
Intel 386-P4 no problems, except the Celeron Slot 1s.. if you (or the id10ts at the wholesaler) touched the cache area, oil from your skin would burn the chip... Intel failure rate long term (due to faulty CPU) is ~0.1%
AMD 386-K7 very rare failure, mostly caused by motherboard cooking with too much voltage (watch this on PCChips mobo's) or heat (people think they can use their 3-yr-old HSF on their new CPU.) AMD failure rate long term (due to faulty CPU) is ~0.5%
IDT are hardly ever bad, they just dont work very well, but they do work :)
Cyrix, oh poor Cyrix... whatever IBM did between the "Blue lightning" 486 and the crappy Cyrix days must have been a bad idea. Failure on Cyrix is AT LEAST 25%
I only used Cyrix for a year or so, right after IBM dropped them and before they were picked up by VIA, so your experience may be better or worse depending.
After 13 years of teching around I cannot say anything bad about Intel or AMD.
I have seen a few Intel cpu's DOA, a few more AMD DOAs and a veritable buttload of cyrix DOAs.
I have, through excessive overclocking and inferior cooling, blown a few cpus up. I have found that as a general rule, if it works when you install it and there is adequate cooling, it will continue to work. Heat kills more processors than all other failures combined. <IMG SRC="smilies/confused.gif" border="0">
had an intell 233mmx which would only run at 190 mhz. Took it back to the wholesaler, who LOST IT [ installed it in another CUST. system,I hear.] <IMG SRC="smilies/redface.gif" border="0"> Yes, they are now defunct..... <IMG SRC="smilies/rolleyes.gif" border="0">
ones i had a problem in AMD
in intel 233 mhz i faced same problem than i have changed mother board jumber seting than its find in 233mhz
tried 3 mb's, two other techs, and Sandra.
New chip[266] worked fine. tried everything, but no-go . <IMG SRC="smilies/smile.gif" border="0">
Does anyone remember the old, really cruddy iNTEL P90? One word: "F00F"
<IMG SRC="smilies/tongue.gif" border="0">
Down with iNTEL, long live AMD! <IMG SRC="smilies/cool.gif" border="0">
2 intel Celron 366 retail box processors , that i still cant rule out mobo on , 4 AMD k6's 300 , 300 (iseem to have had lots of probblems with the 300's , but i think that whole batch was remarked 66Mhz FSB procs labeled as 100Mhz) , 350 and a single 450 , like 15(maybe an exageration , but i dont think so) K5 100's (all from the same distributor, and all from one of my local competitors) and 9 or 10 Cyrix chips.
on the odd side , i combed my hair with a classic pentium 200 (to prove that static would kill it)) , and its still running to this day as one of our accountants machines.
i also had an intel 486 40 , thats was relabel a 66 , and i set up as an 80 by accident , it cracked in half.
I have a poor opinon of AMD K6-2's have had many dump on me.
I only started using AMD processors again last year.
No Intel
1x AMd K6-2/350
1x Duron 700 DOA
I've seen probably 10-15 bad intel CPU's, mostly first generation socket Pentium 3's.
I've seen just as many bad AMD's, all socket cpus.
I don't want to count the Cyrix, Evergreen, PNY, etc... chips. Not worth the time.
Well I've never had a chip back bad but I did reseat a 486 and got confused about which way round it went (bad hair day)...
Got it 180 to proper way round and it started burning plastic. Switched off in hurry, figured buggered...
For a laugh I turned it round, fryed pin dropped off and I had to pare down the socket to get the chip back in. Turned the thing on expecting zip and *Jaw drop!!* amazingly it still works...
PS: It was my machine so I wasn't giving it back to a client <IMG SRC="smilies/wink.gif" border="0">