Searching for a reliable EPS to PCI-e adapter
Searching for a reliable EPS to PCI-e adapter
I own an XFX Merc 310 7900 xtx requiring three 8-pin PCI-e cables. My PSU (Thermaltake Toughpower GF3) only provided two 8-pin PCI-e cables, though it has a spare EPS cable and a slot available.
I'm searching for a secure and dependable EPS to PCI-e female to male adapter.
Here are some links I found:
https://pcpartpicker.com/product/Gt...eo...-79xmercb9
https://pcpartpicker.com/product/ph...-m...50fnfagu-4
Some sources mention adapters that split a single EPS into two 8-pin connections – is that acceptable? Only one of them should be used.
The GF3 850w PCIe cable features 16AWG wires to the first PCIe port and 18AWG from the first to the second. Each 16AWG wire is rated for 10A, while the 18AWG is rated for 7A. One of these cables includes three 12V wires, making it capable of handling up to 360W total. The initial PCIe connector is a HCS type, designed for 13A per pin (468w overall). This design choice is necessary because a regular mini-fit connector cannot accommodate the 16AWG and 18AWG wires. The second PCIe connector is a standard mini-fit version, rated for 9A per pin.
Did you purchase the PSU second hand? If I were you, I’d reach out to Thermaltake to request a cable kit for your PSU because the connector wasn’t included (?) Also, I’d check if they can create a custom cable length for your setup. I wouldn’t recommend using adapters since they often cause fires inside cases.
Based on the information from;
https://es.thermaltake.com/toughpower-gf...ition.html
you should have access to 4xPCIe 8pin connectors, 2 harnesses with a daisy-chained end.
I’ve also noticed some models that split a single EPS into two 8pin pins – is that acceptable?
If your PSU lacks the required connectors for your devices, you likely have:
a) the incorrect PSU for the task
or
b) the wrong components for your build.
I bought it in July, straight from Thermaltake via Amazon, and received all the necessary cables along with it. Now the three PCIe 8pin female slots on the GPU are filled with the two cables included. The first PCIe 8pin slot is populated by one cable, leaving its other end free to connect. The second and third slots use the remaining cable, connecting both ends together. That’s what concerns me.
These cables are rated for 150 W (see below), but the card and GPU require 406–418 W while gaming, according to TechPowerUp (see here). It can draw 75 W from the motherboard, yet the rest—about 331 W—must pass through the two cables, which should only supply around 150 W. Even if distributed evenly, each cable would need to supply roughly 165 W.
The website advises using three separate cables (see first link). Since the "component end" of these cables is standardized, I thought converting an EPS to PCIe might help because both use 12V. I assume sometimes wiring is incorrect or the wires are poor quality, which is why I’m checking which adapters are reliable.
Links provided:
https://www.techpowerup.com/review/xfx-r...oc/37.html
https://file.thermaltake.com/file/qig/Co...GPU_en.pdf
The cable set on their site costs $60, and I’m hesitant to buy a full kit for one cable, especially since I’m unsure if they’ll send a mismatched set and can’t find a direct adapter from Thermaltake.
The cable kit on their site costs $60 and I’m hesitant about buying a full set for just one cable, especially since there’s a chance they might send something that doesn’t fit the PSU end. I also couldn’t locate an adapter directly from Thermaltake. They’ll deliver a kit based on the SKU to your PSU, and you confirm it by contacting them via email. At $60 for a complete cable set to protect a ~$900 GPU, it seems like a great deal. Looking back, I reached out to Lian-li for cables when purchasing an SP850, and they sent the full kit free after verifying my purchase details. Another choice is custom cables made with custom sleevers or
Mod-one, now part of Titan Rig. They handle MDPC-X gear and offer top quality, though it could be expensive. Contact them to get quotes. Mainframe custom is another trustworthy source.
Also, I personally sleeve my own cables using MDPC-X only. That’s why I’m checking which adapters are dependable.
You might want to browse their forums and website—adapters definitely make a difference.
The GF3 850w PCIe cable features 16AWG wires to the first PCIe port and 18AWG from the first to the second. Each 16AWG wire is rated for 10A, while the 18AWG is rated for 7A. One of these cables includes three 12V wires, making it capable of handling up to 360W total. The initial PCIe connector is a HCS type, designed for 13A per pin (468w overall). This design choice is necessary since a regular mini-fit connector cannot accommodate the wire sizes. The second PCIe port uses a standard mini-fit connector rated for 9A per pin.
It's really helpful! I attempted to search for that info, but wasn't able to locate it. Could you share where you discovered it? The manual and the extra PDF on high-powered cards were the most useful resources I found.