david
3 months ago
這個天氣明天要怎麼騎車上班我真的頭痛
latest #16
掰噗~
3 months ago
No good, Bob (nottalking)
david
3 months ago
太安熱安定性能優良,在75°C及以下環境中幾乎不發生分解且不會爆炸,當環境溫度高於熔點時,太安熱分解加快並放出氮氧化物,至約175°C時晶體冒出黃煙,當溫度超過205°C後,太安會在某一時刻爆炸[3][13]。

季戊四醇四硝酸酯 - 維基百科,自由的百科全書
david
3 months ago
An interface between two systems at which (a) they are not connected physically and (b) any logical connection is not automated (i.e., data is transferred through the interface only manually, under human control).

air gap - Glossary | CSRC
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david
3 months ago
如果要復電 UPS 自動供電功能還是買 APC 好了 XD

CyberPower UPS Power On After Utility Power Restored
david
3 months ago
The response you received from our tech support team relates to the power on self-test that our UPS performs when utility power is restored to a UPS following a power outage that lasts long enough for the batteries to be completely drained and the UPS powers off. When the UPS begins the power up sequence it performs several self-tests.
david
3 months ago
This includes a check of the battery strength. As with all batteries a UPS battery will become weaker as it ages. This means that a battery that has been 100% drained may not have to pass the self-test immediately after the power is restored.
david
3 months ago
Failure of this test prevents the UPS from starting up, because the batteries do not yet have sufficient charge to support your equipment if the power were to fail again immediately after the restart. This could result in your equipment crashing.
david
3 months ago
Yes, when adequate power is restored to the UPS and is within the operating voltage range of the UPS, it will restart in online operation.

Will my APC Back-UPS Automatically restart following...
david
3 months ago
Return of AC Input Power

Following an outage, the UPS restarts automatically when AC input power returns (unless the restart function has been disabled) and the load is supplied again.

https://www.eaton.com/.....
david
3 months ago
A-1000 當電池滿電位 ( 已充飽 ) 狀態下,負載為 60W( 含 ) 以上,如遇市電中斷,UPS 電池供電關閉之後 8 小時内復電時,可自動重新啓動 UPS。

https://www.eaton.com/.....
david
3 months ago
When utility power is restored after the UPS shuts down, the UPS automatically restarts.

https://www.eaton.com/.....
david
3 months ago
I honestly got tired of APC/CyberPowr units either taking a complete shit (internal failures), or yeeting batteries every year or two.

From the homelab community on Reddit
I ended up building my own damn UPS, a few years ago.

Portable 2.4Kwh Power Supply / UPS
david
3 months ago
I have tested with up to a 1,500 watts constant load, and it was able to power a 1.5kw load for around an hour and a half.

It should be good for 20 years or so. Expensive, but, damn, peace of mind is nice. Under typical load, it can power my entire rack from around 4-6 hours depending on load....
david
3 months ago
CyberPower CP650HGa 的斷電之後復電再啟動自動供電功能其實是沒問題的。

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david
3 months ago
F1 新加坡站真的太保守了,我快睡著了。
david
3 months ago
DDR5 記憶體問題。

如果你的電腦用 DDR5 記憶體模組會當機,兩隻記憶體會當機,一隻不會,而且兩隻同廠牌同批號。

進入 UEFI CONSOLE 把記憶體的速度降到最低就對了,DDR5 記憶體的同步問題非常嚴重,從第二隻記憶體就開始降速,伺服器的記憶體速度都不高這個也是原因之一。
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