Is this safe?

Simon_1010

Distinguished
Dec 29, 2004
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18,510
I suffered a PS blowing up and I'm struggling to get my PC up and running again. The PS was replaced so I plugged the new one in and initially it turned on but after 5 secs went off and the PS now does nothing in mine, but however powers on in different PCs but they wont boot. There must be some thing wrong with my MB because otherwise it would power on in mine, and something wrong with the PS because it doesn't work properly in other PC's. Ive tested the mem and GC and theyre fine. I have no where to test the CPU and so I've ordered a new MB & PS to test it.
When I get the new bits I plan to just put the MB, PS, CPU, GC and Mem together and see if it boots at all, but I'm worried that if the CPU did go bad when the PS blew up it will damage the new MB/PS and waste my money. Is there any chance it will damage anything??

AMD 3000 64 Newcastle
MSI K8N Neo Platinum
2x 512Mb OCZ EL Platinum
2x 80Gb Maxtor in Raid 0
HIS 9800 Pro 128Mb
CDRW and DVD drive


<P ID="edit"><FONT SIZE=-1><EM>Edited by Simon_1010 on 01/01/05 06:31 PM.</EM></FONT></P>
 

endyen

Splendid
It is possible that the chip is shorted. There was a simple ohmeter test you could do for xp chips, you can find that @<A HREF="http://www.amd.com/us-en/assets/content_type/DownloadableAssets/RMA_Collateral_Rev7.pdf?PC=SYSB-SBE-E-E25A-E-MA4.1-SUNI-RMAP" target="_new">http://www.amd.com/us-en/assets/content_type/DownloadableAssets/RMA_Collateral_Rev7.pdf?PC=SYSB-SBE-E-E25A-E-MA4.1-SUNI-RMAP</A>.
I am sure there is a similar test for A64s, but I have not found it yet.
Are you running any add-in cards? I have found that SB sound cards, modems, and nic cards are more likely to burn, with the psu. Ram is also more easily damaged, than the mobo itself.
Your new psu is exhibiting behavior synonamous with a short, but that short could be in any part of your system. See if the new (ya I know, but broken) psu will stay on with a minimal config.. Start with just the mobo. Add one thing at a time, till it wont stay on.
 

Simon_1010

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Dec 29, 2004
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18,510
Hey thanks. I've had a look for a similar A64 test but no luck. That doc does however say that there is usually severe discoloration. The bottom of the cpu looks fine but I havent taken the heat spreader off the top to see, should I do this? (how? I dont want to invalidate any chance of a warranty I might have)
I did have a minimal system when i first plugged the PS in, and no i have no PCI cards.
Would I damage anything by plugging a PS into a MB with mem and a GC but no CPU? What would happen?
I don't know if my HD's survived the first PS, theyre in a SATA Raid 0 setup so I cant transfer to a different PC.
I've looked for 'domed' capacitors on the MB but can't see any or any discoloured components.
 

endyen

Splendid
With most A64 boards, if you plug them in, without a chip, the light comes on, and you get some type of annoying notification to tell you the cpu is missing. What you are looking for, is if the light stays on.