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Precision 690, where is the cpu fan connector on the motherboard??
I disconnected the cpu fan from my motherboard and cannot find where to plug it back in?
Sounds silly but I have literally scoured every inch of the motherboard and can find no suitable connector.
There is a four pin that it can plug into but that is labeled Aux Led, and the fan does not engage when plugged into that...
thanks.
RoHe
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May 25th, 2016 11:00
Precision 690 motherboard layout on page 6 in the manual. :emotion-5:
topemu
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May 25th, 2016 14:00
I already checked that. it's not listed there.
I think some precision 690's came with a different fan config than mine.
online images shows them with two large aluminum heatsinks,
mine has one large heatsink, and another small one with a fan on it.
that fan is what i need a connector for..
ejn63
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May 25th, 2016 15:00
Are you looking for the memory fan connector (on the outer edge of the mainboard past the CPUs)?
Taltez
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May 25th, 2016 15:00
Maybe it was plugged into an adapter, not on the mobo?
topemu
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May 26th, 2016 06:00
no, my 690 has 2 xeon cpu's. one has a tall passively cooled aluminum heatsink.
and the other has a short copper heatsink with an intel fan on top.
that fan is the one i'm trying to get to turn on, because I cannot find where its power plugs into...
I can't find any adapter coming out of the psu either..
topemu
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June 2nd, 2016 13:00
I'm hoping someone can help me with this?
precision 690
cpu 1 has a fan directly attached to it, unlike most 690's with 2 passively cooled heatsinks.
i can't find where that fan plugs into.
thanks.
RoHe
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June 2nd, 2016 16:00
There's no mention of a CPU fan in any of the docs, so your guess is as good as anyone else's.
Did the PC come that way or did somebody mod it with a new heat sink and extra fan?
Are you sure that fan was actually connected somewhere or was its cable just laying on top of the motherboard?
Could there be a Y-splitter on one of the other (fan) cables where this one was connected? And exactly what does the connector look like?
speedstep
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June 3rd, 2016 12:00
# 4 is called the Front Fan
#5 is called the Card Fan.
http://www.dell.com/support/home/us/en/19/product-support/product/precision-690/manuals
Most Precision systems have DUAL FANS in the front and FAN in the rear.These are not Generic 3 wire fans. 0KC257 PRECISION 690 FRONT FAN ASSY. Precision 690 T7400 T7500 Rear Fan Assembly HG738 F406N D8794
http://www.ebay.com/itm/Dell-Precision-690-T7400-T7500-Dual-Front-Case-Fan-Assembly-WN845-/162036488983
http://www.ebay.com/itm/Genuine-OEM-Dell-Precision-690-T7400-T7500-Rear-Fan-Assembly-HG738-F406N-D8794-/150906673597