alienware la-k741p
rev: 1.0 a00
Alienware m15 R4
reg model: p111f
dpn: 8v4dna00
For a file that doesn't work, I couldn't find the device support page.
Serial number...
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-
Today, 03:29 PM -
(TLDR: It was capacitor C6519 [Koshin KZH 50V22uF] and C6515 [Koshin KZH 25V47uF] on the power supply. I have questions at the end)
Disclaimer: I'm an amateur hobbyist and will get things wrong.
Always use caution when working around mains power and high voltage capacitors!
Hey guys, I'm repairing a Denon AVR X6400h for my brother. It quit powering on after a power outage. It acted like this last time there was an outage, but after letting it sit overnight it started working again for a few years. This time letting it sit did not bring it back.
SYMPTOMS:
-No display... -
- Prior owner tried a replacement main board. No difference.
- Samsung 2x red blinking standby LED = panel fault
- Jumpered FB_TRDY_1 (pin 1 CN1300 left. main tcon->left side buffer boards) and FB_TRDY_3 (pin 95 CN1301 right. main tcon->right side buffer boards) This allows testing individual T-Con (on main board) connection to panel on this Samsung. Found fault on left side (viewing from rear of TV)
- Each side has 2 buffer boards, disconnected left side flex between 2 buffer boards. Fault is on the left most board.
- Tape masking eventually isolated to CN1300 pin 15 (CKV4_GOA) Display
-
I’ve got this Lenovo M725s with an AMD Ryzen 2400G here on the bench. Supposedly it’s only good for win 10. Win 11 doesn’t support the Ryzen 2400G. However Win 11 does support the Ryzen 2600?
there are a lot of CPUs that fit the AM4 socket, but this mother board based on a 450 series does not support the Ryzen 3000series or up. I think due to bios limitations from Lenovo.
Now here things get vague: In one way Lenovo sez the M725s’s are not upgradable to run win 11. Other hand Win 11 supports the AMD 2600 and the 2700.
Anyone got an M725s with a Ryzen 2600... -
Hello, I have an HP 15-eh0001nf with a start issue,
- First it didnt start at all power button blinking blue and no screen, but seems a boot loop*
- I tried to remove most component - > same issueI see some little corroded component, clean them with isopropyle alcool and resamble all -> it worked during less than one minute and did the same issueI
- tried to clean it again and worked few second and get same issue...
- Now dont want to start anymoreI see on thermal cam a component getting a bit hot (qr=7j 13g) and didnt find any information about it (, i tested all rail and no short..µ
widgetinstance 454 (Related Topics) skipped due to lack of content & hide_module_if_empty option.
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