Question about Dell Precision Computers & Internet
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Posted on Jan 02, 2017
SOURCE: d530 CMT minttower power problem
Hi, from your description it appears your power supply is ok. Remove your RAM chips, clean everything with a soft brush or a can of compressede air [from computer store] Reinstall the RAM making sure it is seated firmly. If this does not solve the problem, Are you using 1 or 2 RAM sticks? if 2 then remove them again and swap them around. stick one in dimm2 and stick 2 in dimm 1. If you only have one stick then beg or borrow another stick and try it. If all fails you may have developed a mobo problem. Regards mistyman
Hi, from your description it appears your power supply is ok.
Remove your RAM chips, clean everything with a soft brush or a can of compressede air [from computer store] Reinstall the RAM making sure it is seated firmly.
If this does not solve the problem, Are you using 1 or 2 RAM sticks? if 2 then remove them again and swap them around.
stick one in dimm2 and stick 2 in dimm 1.
If you only have one stick then beg or borrow another stick and try it. If all fails you may have developed a mobo problem.
Posted on Oct 15, 2007
SOURCE: Dell Dimension 8400
I have this exact problem.
The Dell Dimension 8400 will seem to randomly go into fan-jet-turbo mode on power-up and fail to boot. The problem I'm referring to is not a heat problem which an over-speed fan might otherwise suggest but a hardware problem the details I'll get to in a bit
I've done all the normal and obvious stuff that has been reported before
remove/replace AGP video card
removed all extra power loading / drives / USB etc
check supply voltages with a DMM (I even re-adjusted the hipot to get the right voltage - it was a little low)
As an engineer it is important to determine root cause. Do to this it is necessary to find a way to make the problem occur and not occur. If you're able to do this you can fix it.
Well in my case the problem it related to a mechanical stress on the heatsink. What I mean is a little force pushing the heat sink toward the fan turns off the problem (boots normally) while a little force in the directly away from the fan turns-on the problem (fan-jet-turbo-mode).
The root cause is could one of several things, it could be a damaged motherboard with a broken trace, it could be a socketing issue,
The Fix (not really - just a band-aide) was to use a tie a couple of small tie-wraps through a some small holes in the heatsink then through the fan mounting holes.
Only slight pressure is necessary - too much will likely cause permanent damage. The fan is mounted on rubber isolators so it somewhat limits the force on the heatsink
Any this mechanical issue is somewhat supported but all the information I've read - how removing/replacing the CPU can fix the problem, changing memory, removing cards - all these mechanicall stress the motherboard and likely move the heatsink some.
Intermittent problems are the worst to debug!
San Jose, Ca
Posted on Dec 07, 2008
SOURCE: computer will not boot
See that link for the beginning of the Dell troubleshooting wizard for diag lights 3 & 4, it is in fact a memory subsystem error. Usually meaning the stick of memory in the first slot is bad. The wizard will walk you through this, but try removing the first stick and using the second stick in the first bay and see if it will boot. Unfortunately no recalls on RAM for this model but the good news is that your memory is cheap and if your not under your service contract you can buy a set on newegg or a similar site for about 50 bucks.
Posted on Jul 15, 2009
Try the steps given below and it should resolve the issue;
1. Turn off the computer - unplug the power cable
2. Press and hold down the power button for 1 minute with power cable unplugged
3. Release the power button
4. Reconnect the power cable and turn on the computer
5. Dell ought to boot in Normal Mode
Lemme know the results.
Posted on Dec 04, 2010
SOURCE: Dell T3500 Power button blinks
Blinking Amber - System fault error condition including Power Supply (only +5VSB working), V reg (Voltage Regulator) failure, missing or bad CPU etc.1 and 3 LED"s indicatesMemory configuration error.
Just to make sure thatnothing else is causing the problem, remove any PCI cards like modem, videocard, sound card, etc... Remove the memory modules and disconnect cables toCD/DVD drives. Look at the USB ports to see if any are damaged.
Posted on Jul 03, 2011
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