Personal computing discussed

Search found 9 matches

by jbrandmeyer
Fri Nov 23, 2018 9:56 pm
Forum: Motherboards, Chipsets, & RAM
Topic: X399 and dual EPS12V
Replies: 2
Views: 4017

X399 and dual EPS12V

So. About those dual EPS12V connectors on X399 motherboards. I've got an 2950X threadripper workstation setup, and the 750W power supply only came with one EPS12V connector. Seems I forgot to check this little detail when I bought the components. The motherboard is powered via the ATX connector with...
by jbrandmeyer
Wed Dec 28, 2011 12:40 pm
Forum: Motherboards, Chipsets, & RAM
Topic: Weird Asus M5A97 EVO "factory" settings
Replies: 7
Views: 4447

Re: Weird Asus M5A97 EVO "factory" settings

I generally clear the CMOS on new boards right out of the box. I've seen boards come with weird (non-default) settings too, so it is the only way to be sure you're starting from a clean slate. Ouch. I didn't realize that QC had slipped that far. My prior computer was a single-core socket 939 that g...
by jbrandmeyer
Wed Dec 28, 2011 12:31 pm
Forum: Motherboards, Chipsets, & RAM
Topic: Weird Asus M5A97 EVO "factory" settings
Replies: 7
Views: 4447

Re: Weird Asus M5A97 EVO "factory" settings

I have very good water cooling and airflow and still this thing likes to throttle like crazy and does not like high voltage. One thing I noted is that AMD Overdrive and the Asus motherboard utilities are clearly showing different temperatures for the CPU core. Thermal throttling kicks in at 65C as ...
by jbrandmeyer
Wed Dec 28, 2011 12:14 pm
Forum: Motherboards, Chipsets, & RAM
Topic: Weird Asus M5A97 EVO "factory" settings
Replies: 7
Views: 4447

Re: Weird Asus M5A97 EVO "factory" settings

Question for you, do you ever find that the board sometimes takes a little long to get through the boot sequence? It definitely got longer as I added HDD's to it. It is much longer if a USB block storage device is attached at boot time. With 2 SSD's and 2 HDD's attached, I see a consistent 5 second...
by jbrandmeyer
Wed Dec 28, 2011 10:23 am
Forum: Motherboards, Chipsets, & RAM
Topic: Weird Asus M5A97 EVO "factory" settings
Replies: 7
Views: 4447

Weird Asus M5A97 EVO "factory" settings

tldr: This is just an unusual experience report. It wasn't anything I couldn't fix on my own; I'm just sharing a little story. So, leading up to the holidays, I built myself a new computer based on an X6 1100T and the M5A97 EVO motherboard. I also got one of the swanky all-in-one water cooling kits ...
by jbrandmeyer
Wed Nov 30, 2011 11:22 pm
Forum: Overclocking, Tweaking, & Cooling
Topic: Review Request: Good cooling reduces power consumption?
Replies: 12
Views: 3856

Re: Review Request: Good cooling reduces power consumption?

Semiconductors like silicon have a *negative* temperature coefficient of resistivity -- their resistance drops with increasing temperature Be careful with temperature coefficient of resistivity. Different transistor types have different coefficients. Diodes are typically negative temperature coeffi...
by jbrandmeyer
Wed Nov 30, 2011 3:11 pm
Forum: Overclocking, Tweaking, & Cooling
Topic: Review Request: Good cooling reduces power consumption?
Replies: 12
Views: 3856

Re: Review Request: Good cooling reduces power consumption?

Except in this case, it is the lower-wattage unit with the lower temperature.
by jbrandmeyer
Wed Nov 30, 2011 2:22 pm
Forum: Overclocking, Tweaking, & Cooling
Topic: Review Request: Good cooling reduces power consumption?
Replies: 12
Views: 3856

Re: Review Request: Good cooling reduces power consumption?

Thanks, Damage. Yes, I do see the change on the recent 6950 round-up. Looks like a 14C temperature change between the XFX and MSI cards also corresponded to 9W of power savings at the wall. Neglecting the tiny difference in clock speed between them, is it still a fair comparison? Does AMD mandate a ...
by jbrandmeyer
Wed Nov 30, 2011 9:10 am
Forum: Overclocking, Tweaking, & Cooling
Topic: Review Request: Good cooling reduces power consumption?
Replies: 12
Views: 3856

Review Request: Good cooling reduces power consumption?

So, the writers at TR and Real World Tech have been cross-complementing each other over the past year, and that's how I learned about RWT. David Kanter has an article up on the interaction between heat production in a CPU and its temperature. The money quote: The authors estimated that lowering the ...
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