I can measure my HD 4770 later today, if that help.

Sorry for delay, I measured it today during repasting of my cards.

Screws mounts on my HD 4770 are 44mm apart. Hopefully it helps.

I read Arctic's manual for Accelero L2:
It had many GPU hole spacings.

Ati HD3650 has 43.2 x 43.2 mm hole spacings
HD2000,3000,4000,5000,6000,... has the same. So I have multiple choices where I can get the better donor heat sink from. I feel very lucky 😀
https://www.arctic.ac/eu_en/downloads/dl/file … ual_english.pdf

Also this water block list gives solutions:
http://koolance.com/help-gpu-hole-spacing
NVIDIA GeForce 6600 43mm
NVIDIA GeForce GT 240 43mm

user33331 wrote:

Ati HD3650 has 43.2 x 43.2 mm hole spacings

Yeah, that's sounds about right. My plastic vernier caliper for 1€ isn't some mighty measurement device 🤣

When applying paste did you put: ( I looked http://www.caseking.de video for paste applying )
1.) Drop of pearl like 4mm ?
2.) Thin cross ?
3.) Used a spatula to spread it evenly ?
- I don't know what method to use. 🙁
I bought Noctua NT-H1 grease for like 7-8€.

I used cheap Arctic Cooling MX-2. And I used just small drop, since RV740 die is really small, and cooler spread out TIM evenly, once reapplied on card.