Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: XFX HD Radeon 5770 Under-Powered?

17 Aug 2015   #1

Windows 7 Ultimate x64 SP1 (64 Bit)
XFX HD Radeon 5770 Under-Powered?

after doing a HDD change out (was 5 now only have 3) i noticed something wrong with the 6pin to dual molex connector one of the 12v wires had melted at the molex connector, at first i thought it was nothing massive to worry about but then i remembered while playing GTA EFLC i kept getting severe Frame-drops and screen resets, i know the game itself is a bad port but i first noticed a Frame drop or several in my two Guitar Hero Games, Ive repaired the cable and kept a VERY close eye on it and the wire gets warm but not burn temp, now Ive come to two conclusions, 1. My unbranded 500W PSU just isn't up to the task to power the card and im better off buying a PSU with a 6PIN already on it instead of using the splitter. 2. the cable i bought was extremely cheap and you can tell by sight its a Knock Off.

Ive done a few PSU sites to see what everything i have pulls in and the lowest was 331W highest was 474W so logically im a bit baffled ha, what is it really pulling.

i believe my specs are below, any advise?

12v - 22A max Output

My System SpecsSystem Spec
17 Aug 2015   #2

W10 Pro x64, W7 Pro x64 in VMware

Most people here would recommend using a branded psu such as Corsair etc esp if gaming. I always go over spec re psu power with my builds - also I don't like molex to gfx card 6 pin adapters, I much prefer buying a psu with dedicated hard-wired power lines (such as you get with good quality psu's). One problem with buying a good psu used to be that they often came with a huge harness of cables for HDD's, DVDs, multi gfx cards etc. This could make the case quite crowded and a bit of a hassle. Nowadays modular psu's solve that problem - you just use the connectors you need.
My System SpecsSystem Spec
17 Aug 2015   #3

Windows 7 Ultimate x64 SP1 (64 Bit)

that dos'nt really answer my question, all you've done is give me a description on PSU's, im very tech savvy, but as this is a first to ever happen in my 10 years or so working and building rigs its come as a big confusion,
i know about the "have more than you need" i was asking with what i have which isn't a lot on today's standards in gaming rigs, why was my GFX causing a burn on just 1 of the 12v wire and not the other, my plan is to buy a branded PSU but with sites giving me totally different Wattage ratings which i stated its a debate to get a 500 or a 600, i don't plan on adding any more GFX cards or peripherals, i don't even use the DVD drive as all my games are now ISO, im not to fussed about modular or fixed as i have plenty of room on the opposite side for cable management without restricting any airflow and mine is set as Negative pressure anyway and all heat is displaced out the top 2 and the top rear fan (my psu sits at the bottom) of the case as its a custom not a store bought basic
My System SpecsSystem Spec


 XFX HD Radeon 5770 Under-Powered?

Thread Tools

Similar help and support threads
Thread Forum
Radeon 2600XT to Radeon HD 5770
Some thoughts please. I want to add a blueray drive (not burner for now) to my system as well as a 2d monitor. According to a program I downloaded and ran all my stuff SHOULD be bluray compatible, HDCP compliant and etc. However, I've seen that the Radeon 5700 series is specifically...
Graphic Cards
ATI Radeon 5770
Hi all, Looking to get this and, after some research, have realised my PSU won't be able to supprot it. Can anyone suggest a good and reliable PSU? I'm assuming I'll need at least 450W from what I've read, with a 6-pin connector for the card. Any suggestion or pointers welcome!
Graphic Cards
XFX Radeon HD 5770
Hello Guys I have a big Problem since 2 weeks.. My Problem is that my Display flickers when i connect a second Screen..:( I tried everything but nothing helped me Maybe u guys know the Reason for the Problem. Im very Happy when someone would help me Thank You and sorry for my bad English...
Graphic Cards
Ati radeon 5770
Just upgraded my pc from a 400w psu to a 750w, and from a 9500gt to a ATI 5770. Now I'm getting an error "NTLDR is missing, CTRL + ALT + DEL to restart. I've checked and checked to make sure all the cables from the PSU are int he right place but I cant find anything. And the error "NTLDR" is hard...
Graphic Cards
Sapphire ATI Radeon HD 5770
The driver won't install from the Catalyst Suite. The drivers installed through Windows Update, which is fine enough, but I want to install the Catalyst Control Center too. When I download the update from and choose the 5XXXX series for Windows 7 64-bit, it won't install when you get to...
Graphic Cards

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 18:11.
Twitter Facebook Google+